./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float21.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float21.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD --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 b3d24e4c1c847e769127c38fbc1869029d0f9f97538d9231a2c03e206a85bd0f ......................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float21.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD --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 b3d24e4c1c847e769127c38fbc1869029d0f9f97538d9231a2c03e206a85bd0f ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:36:43,870 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:36:43,873 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:36:43,932 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:36:43,935 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:36:43,940 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:36:43,944 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:36:43,949 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:36:43,952 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:36:43,961 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:36:43,962 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:36:43,964 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:36:43,965 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:36:43,968 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:36:43,971 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:36:43,979 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:36:43,982 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:36:43,983 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:36:43,989 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:36:43,997 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:36:43,999 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:36:44,001 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:36:44,002 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:36:44,005 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:36:44,009 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:36:44,010 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:36:44,010 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:36:44,012 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:36:44,013 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:36:44,014 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:36:44,015 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:36:44,016 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:36:44,017 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:36:44,019 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:36:44,020 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:36:44,021 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:36:44,022 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:36:44,023 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:36:44,023 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:36:44,025 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:36:44,026 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:36:44,027 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 23:36:44,055 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:36:44,055 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:36:44,056 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:36:44,056 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:36:44,058 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:36:44,058 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:36:44,059 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:36:44,059 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:36:44,059 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:36:44,060 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:36:44,060 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:36:44,060 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:36:44,061 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:36:44,061 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:36:44,061 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:36:44,062 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:36:44,062 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:36:44,062 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:36:44,063 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:36:44,063 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:36:44,063 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:36:44,063 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:36:44,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:36:44,064 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:36:44,064 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:36:44,065 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:36:44,065 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:36:44,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:36:44,065 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:36:44,066 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:36:44,066 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:36:44,066 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:36:44,066 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_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b3d24e4c1c847e769127c38fbc1869029d0f9f97538d9231a2c03e206a85bd0f [2021-10-28 23:36:44,351 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:36:44,388 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:36:44,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:36:44,393 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:36:44,394 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:36:44,395 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/floats-cbmc-regression/float21.i [2021-10-28 23:36:44,504 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/data/fba61660e/d90e2892d69241ec9abb6261a435ae73/FLAG6366ef8e7 [2021-10-28 23:36:45,155 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:36:45,155 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/sv-benchmarks/c/floats-cbmc-regression/float21.i [2021-10-28 23:36:45,191 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/data/fba61660e/d90e2892d69241ec9abb6261a435ae73/FLAG6366ef8e7 [2021-10-28 23:36:45,400 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/data/fba61660e/d90e2892d69241ec9abb6261a435ae73 [2021-10-28 23:36:45,403 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:36:45,405 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:36:45,407 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:36:45,407 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:36:45,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:36:45,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:36:45" (1/1) ... [2021-10-28 23:36:45,415 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cf3bcd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:45, skipping insertion in model container [2021-10-28 23:36:45,415 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:36:45" (1/1) ... [2021-10-28 23:36:45,442 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:36:45,510 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:36:46,166 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:1694) 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:1414) 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.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2355) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:712) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2355) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2355) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1582) 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:1052) 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:1436) 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:3224) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2305) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:580) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-28 23:36:46,173 INFO L168 Benchmark]: Toolchain (without parser) took 766.06 ms. Allocated memory was 92.3 MB in the beginning and 117.4 MB in the end (delta: 25.2 MB). Free memory was 57.0 MB in the beginning and 90.6 MB in the end (delta: -33.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:36:46,174 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 92.3 MB. Free memory was 50.4 MB in the beginning and 50.3 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:36:46,175 INFO L168 Benchmark]: CACSL2BoogieTranslator took 763.11 ms. Allocated memory was 92.3 MB in the beginning and 117.4 MB in the end (delta: 25.2 MB). Free memory was 56.8 MB in the beginning and 90.6 MB in the end (delta: -33.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:36:46,178 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 92.3 MB. Free memory was 50.4 MB in the beginning and 50.3 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 763.11 ms. Allocated memory was 92.3 MB in the beginning and 117.4 MB in the end (delta: 25.2 MB). Free memory was 56.8 MB in the beginning and 90.6 MB in the end (delta: -33.7 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: floating point operation not supported in non-bitprecise translation: fpclassify de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:36:48,584 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:36:48,586 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:36:48,619 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:36:48,620 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:36:48,621 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:36:48,624 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:36:48,626 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:36:48,629 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:36:48,630 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:36:48,632 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:36:48,633 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:36:48,634 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:36:48,635 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:36:48,637 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:36:48,639 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:36:48,641 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:36:48,642 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:36:48,645 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:36:48,648 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:36:48,650 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:36:48,652 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:36:48,653 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:36:48,655 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:36:48,659 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:36:48,660 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:36:48,660 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:36:48,661 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:36:48,662 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:36:48,664 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:36:48,664 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:36:48,666 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:36:48,667 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:36:48,668 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:36:48,670 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:36:48,671 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:36:48,672 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:36:48,672 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:36:48,673 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:36:48,674 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:36:48,675 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:36:48,677 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-28 23:36:48,710 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:36:48,710 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:36:48,711 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:36:48,711 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:36:48,713 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:36:48,713 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:36:48,713 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:36:48,714 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:36:48,714 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:36:48,714 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:36:48,715 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:36:48,715 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:36:48,715 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:36:48,716 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:36:48,721 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 23:36:48,721 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 23:36:48,722 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:36:48,722 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:36:48,722 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:36:48,722 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:36:48,723 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:36:48,723 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:36:48,723 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:36:48,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:36:48,724 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:36:48,724 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:36:48,725 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:36:48,725 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 23:36:48,726 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 23:36:48,726 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:36:48,726 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:36:48,727 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:36:48,727 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:36:48,727 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 23:36:48,728 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_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b3d24e4c1c847e769127c38fbc1869029d0f9f97538d9231a2c03e206a85bd0f [2021-10-28 23:36:49,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:36:49,192 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:36:49,196 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:36:49,199 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:36:49,200 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:36:49,201 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/floats-cbmc-regression/float21.i [2021-10-28 23:36:49,282 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/data/6da94ac07/f36b5ccde56c45eba6ca0b3b0fd70b21/FLAGe26e22d2e [2021-10-28 23:36:50,011 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:36:50,013 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/sv-benchmarks/c/floats-cbmc-regression/float21.i [2021-10-28 23:36:50,037 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/data/6da94ac07/f36b5ccde56c45eba6ca0b3b0fd70b21/FLAGe26e22d2e [2021-10-28 23:36:50,227 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/data/6da94ac07/f36b5ccde56c45eba6ca0b3b0fd70b21 [2021-10-28 23:36:50,231 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:36:50,234 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:36:50,237 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:36:50,238 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:36:50,242 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:36:50,244 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:36:50" (1/1) ... [2021-10-28 23:36:50,247 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66ee3d08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:50, skipping insertion in model container [2021-10-28 23:36:50,247 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:36:50" (1/1) ... [2021-10-28 23:36:50,255 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:36:50,321 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:36:51,123 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_4139bfb0-0023-4203-9539-8e567a57b9e6/sv-benchmarks/c/floats-cbmc-regression/float21.i[40548,40561] [2021-10-28 23:36:51,133 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_4139bfb0-0023-4203-9539-8e567a57b9e6/sv-benchmarks/c/floats-cbmc-regression/float21.i[40793,40806] [2021-10-28 23:36:51,136 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_4139bfb0-0023-4203-9539-8e567a57b9e6/sv-benchmarks/c/floats-cbmc-regression/float21.i[41044,41057] [2021-10-28 23:36:51,140 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_4139bfb0-0023-4203-9539-8e567a57b9e6/sv-benchmarks/c/floats-cbmc-regression/float21.i[41293,41306] [2021-10-28 23:36:51,142 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_4139bfb0-0023-4203-9539-8e567a57b9e6/sv-benchmarks/c/floats-cbmc-regression/float21.i[41371,41384] [2021-10-28 23:36:51,144 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_4139bfb0-0023-4203-9539-8e567a57b9e6/sv-benchmarks/c/floats-cbmc-regression/float21.i[41469,41482] [2021-10-28 23:36:51,145 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_4139bfb0-0023-4203-9539-8e567a57b9e6/sv-benchmarks/c/floats-cbmc-regression/float21.i[41539,41552] [2021-10-28 23:36:51,146 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_4139bfb0-0023-4203-9539-8e567a57b9e6/sv-benchmarks/c/floats-cbmc-regression/float21.i[41607,41620] [2021-10-28 23:36:51,147 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_4139bfb0-0023-4203-9539-8e567a57b9e6/sv-benchmarks/c/floats-cbmc-regression/float21.i[41705,41718] [2021-10-28 23:36:51,148 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_4139bfb0-0023-4203-9539-8e567a57b9e6/sv-benchmarks/c/floats-cbmc-regression/float21.i[41799,41812] [2021-10-28 23:36:51,150 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_4139bfb0-0023-4203-9539-8e567a57b9e6/sv-benchmarks/c/floats-cbmc-regression/float21.i[41906,41919] [2021-10-28 23:36:51,152 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_4139bfb0-0023-4203-9539-8e567a57b9e6/sv-benchmarks/c/floats-cbmc-regression/float21.i[41974,41987] [2021-10-28 23:36:51,158 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_4139bfb0-0023-4203-9539-8e567a57b9e6/sv-benchmarks/c/floats-cbmc-regression/float21.i[42220,42233] [2021-10-28 23:36:51,166 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:36:51,180 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:36:51,220 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_4139bfb0-0023-4203-9539-8e567a57b9e6/sv-benchmarks/c/floats-cbmc-regression/float21.i[40548,40561] [2021-10-28 23:36:51,229 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_4139bfb0-0023-4203-9539-8e567a57b9e6/sv-benchmarks/c/floats-cbmc-regression/float21.i[40793,40806] [2021-10-28 23:36:51,234 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_4139bfb0-0023-4203-9539-8e567a57b9e6/sv-benchmarks/c/floats-cbmc-regression/float21.i[41044,41057] [2021-10-28 23:36:51,245 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_4139bfb0-0023-4203-9539-8e567a57b9e6/sv-benchmarks/c/floats-cbmc-regression/float21.i[41293,41306] [2021-10-28 23:36:51,248 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_4139bfb0-0023-4203-9539-8e567a57b9e6/sv-benchmarks/c/floats-cbmc-regression/float21.i[41371,41384] [2021-10-28 23:36:51,249 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_4139bfb0-0023-4203-9539-8e567a57b9e6/sv-benchmarks/c/floats-cbmc-regression/float21.i[41469,41482] [2021-10-28 23:36:51,255 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_4139bfb0-0023-4203-9539-8e567a57b9e6/sv-benchmarks/c/floats-cbmc-regression/float21.i[41539,41552] [2021-10-28 23:36:51,257 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_4139bfb0-0023-4203-9539-8e567a57b9e6/sv-benchmarks/c/floats-cbmc-regression/float21.i[41607,41620] [2021-10-28 23:36:51,258 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_4139bfb0-0023-4203-9539-8e567a57b9e6/sv-benchmarks/c/floats-cbmc-regression/float21.i[41705,41718] [2021-10-28 23:36:51,259 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_4139bfb0-0023-4203-9539-8e567a57b9e6/sv-benchmarks/c/floats-cbmc-regression/float21.i[41799,41812] [2021-10-28 23:36:51,261 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_4139bfb0-0023-4203-9539-8e567a57b9e6/sv-benchmarks/c/floats-cbmc-regression/float21.i[41906,41919] [2021-10-28 23:36:51,263 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_4139bfb0-0023-4203-9539-8e567a57b9e6/sv-benchmarks/c/floats-cbmc-regression/float21.i[41974,41987] [2021-10-28 23:36:51,265 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_4139bfb0-0023-4203-9539-8e567a57b9e6/sv-benchmarks/c/floats-cbmc-regression/float21.i[42220,42233] [2021-10-28 23:36:51,269 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:36:51,462 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:36:51,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:51 WrapperNode [2021-10-28 23:36:51,463 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:36:51,464 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:36:51,465 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:36:51,465 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:36:51,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:51" (1/1) ... [2021-10-28 23:36:51,508 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:51" (1/1) ... [2021-10-28 23:36:51,568 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:36:51,569 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:36:51,570 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:36:51,570 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:36:51,580 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:51" (1/1) ... [2021-10-28 23:36:51,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:51" (1/1) ... [2021-10-28 23:36:51,595 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:51" (1/1) ... [2021-10-28 23:36:51,596 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:51" (1/1) ... [2021-10-28 23:36:51,610 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:51" (1/1) ... [2021-10-28 23:36:51,618 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:51" (1/1) ... [2021-10-28 23:36:51,622 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:51" (1/1) ... [2021-10-28 23:36:51,631 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:36:51,643 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:36:51,643 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:36:51,644 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:36:51,644 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:51" (1/1) ... [2021-10-28 23:36:51,652 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:36:51,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:36:51,679 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:36:51,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:36:51,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-28 23:36:51,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:36:51,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:36:51,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:37:01,979 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:37:01,979 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-28 23:37:01,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:37:01 BoogieIcfgContainer [2021-10-28 23:37:01,981 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:37:01,982 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:37:01,983 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:37:01,986 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:37:01,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:36:50" (1/3) ... [2021-10-28 23:37:01,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@465e51d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:37:01, skipping insertion in model container [2021-10-28 23:37:01,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:51" (2/3) ... [2021-10-28 23:37:01,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@465e51d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:37:01, skipping insertion in model container [2021-10-28 23:37:01,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:37:01" (3/3) ... [2021-10-28 23:37:01,991 INFO L111 eAbstractionObserver]: Analyzing ICFG float21.i [2021-10-28 23:37:01,997 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:37:01,997 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2021-10-28 23:37:02,054 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:37:02,062 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 [2021-10-28 23:37:02,062 INFO L340 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2021-10-28 23:37:02,080 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 37 states have (on average 1.7837837837837838) internal successors, (66), 50 states have internal predecessors, (66), 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) [2021-10-28 23:37:02,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-28 23:37:02,085 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:37:02,086 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-28 23:37:02,086 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-10-28 23:37:02,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:37:02,093 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2021-10-28 23:37:02,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:37:02,106 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1911013422] [2021-10-28 23:37:02,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:37:02,108 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:37:02,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:37:02,112 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:37:02,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 23:37:02,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:37:02,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:37:02,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:37:02,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:37:02,373 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:37:02,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:37:02,478 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:37:02,478 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1911013422] [2021-10-28 23:37:02,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1911013422] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:37:02,479 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:37:02,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-28 23:37:02,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285994296] [2021-10-28 23:37:02,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:37:02,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:37:02,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:37:02,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:37:02,508 INFO L87 Difference]: Start difference. First operand has 51 states, 37 states have (on average 1.7837837837837838) internal successors, (66), 50 states have internal predecessors, (66), 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 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2021-10-28 23:37:06,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:37:06,977 INFO L93 Difference]: Finished difference Result 95 states and 124 transitions. [2021-10-28 23:37:07,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:37:07,007 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 4 [2021-10-28 23:37:07,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:37:07,018 INFO L225 Difference]: With dead ends: 95 [2021-10-28 23:37:07,018 INFO L226 Difference]: Without dead ends: 43 [2021-10-28 23:37:07,022 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:37:07,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-10-28 23:37:07,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-10-28 23:37:07,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 32 states have (on average 1.3125) internal successors, (42), 42 states have internal predecessors, (42), 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) [2021-10-28 23:37:07,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 42 transitions. [2021-10-28 23:37:07,065 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 42 transitions. Word has length 4 [2021-10-28 23:37:07,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:37:07,066 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 42 transitions. [2021-10-28 23:37:07,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2021-10-28 23:37:07,067 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 42 transitions. [2021-10-28 23:37:07,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-28 23:37:07,067 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:37:07,068 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:37:07,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:37:07,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:37:07,287 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-10-28 23:37:07,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:37:07,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1808724044, now seen corresponding path program 1 times [2021-10-28 23:37:07,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:37:07,295 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2116028949] [2021-10-28 23:37:07,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:37:07,296 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:37:07,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:37:07,297 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:37:07,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 23:37:07,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:37:07,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 23:37:07,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:37:10,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:37:10,186 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:37:10,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:37:10,721 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:37:10,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2116028949] [2021-10-28 23:37:10,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2116028949] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:37:10,722 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:37:10,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-28 23:37:10,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930827252] [2021-10-28 23:37:10,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:37:10,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:37:10,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:37:10,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:37:10,728 INFO L87 Difference]: Start difference. First operand 43 states and 42 transitions. Second operand has 8 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2021-10-28 23:37:18,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:37:18,304 INFO L93 Difference]: Finished difference Result 43 states and 42 transitions. [2021-10-28 23:37:18,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:37:18,317 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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 7 [2021-10-28 23:37:18,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:37:18,319 INFO L225 Difference]: With dead ends: 43 [2021-10-28 23:37:18,319 INFO L226 Difference]: Without dead ends: 41 [2021-10-28 23:37:18,320 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:37:18,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-10-28 23:37:18,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-10-28 23:37:18,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 40 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) [2021-10-28 23:37:18,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 40 transitions. [2021-10-28 23:37:18,326 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 40 transitions. Word has length 7 [2021-10-28 23:37:18,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:37:18,326 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 40 transitions. [2021-10-28 23:37:18,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2021-10-28 23:37:18,326 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 40 transitions. [2021-10-28 23:37:18,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-28 23:37:18,327 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:37:18,327 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:37:18,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:37:18,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:37:18,542 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-10-28 23:37:18,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:37:18,544 INFO L85 PathProgramCache]: Analyzing trace with hash 235874606, now seen corresponding path program 1 times [2021-10-28 23:37:18,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:37:18,552 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [683142693] [2021-10-28 23:37:18,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:37:18,554 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:37:18,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:37:18,555 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:37:18,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 23:37:18,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:37:18,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:37:18,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:37:18,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:37:18,756 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:37:18,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:37:18,835 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:37:18,835 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [683142693] [2021-10-28 23:37:18,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [683142693] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:37:18,835 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:37:18,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-28 23:37:18,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513273546] [2021-10-28 23:37:18,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:37:18,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:37:18,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:37:18,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:37:18,837 INFO L87 Difference]: Start difference. First operand 41 states and 40 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2021-10-28 23:37:23,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:37:23,960 INFO L93 Difference]: Finished difference Result 41 states and 40 transitions. [2021-10-28 23:37:23,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:37:23,971 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 8 [2021-10-28 23:37:23,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:37:23,972 INFO L225 Difference]: With dead ends: 41 [2021-10-28 23:37:23,972 INFO L226 Difference]: Without dead ends: 37 [2021-10-28 23:37:23,972 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:37:23,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-10-28 23:37:23,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-10-28 23:37:23,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 36 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) [2021-10-28 23:37:23,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 36 transitions. [2021-10-28 23:37:23,978 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 36 transitions. Word has length 8 [2021-10-28 23:37:23,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:37:23,978 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 36 transitions. [2021-10-28 23:37:23,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2021-10-28 23:37:23,979 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 36 transitions. [2021-10-28 23:37:23,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-28 23:37:23,979 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:37:23,979 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:37:23,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:37:24,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:37:24,191 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-10-28 23:37:24,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:37:24,191 INFO L85 PathProgramCache]: Analyzing trace with hash 377772985, now seen corresponding path program 1 times [2021-10-28 23:37:24,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:37:24,192 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1493544284] [2021-10-28 23:37:24,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:37:24,192 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:37:24,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:37:24,193 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:37:24,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 23:37:24,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:37:24,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 23:37:24,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:37:25,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:37:25,630 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:37:44,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:37:44,271 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:37:44,272 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1493544284] [2021-10-28 23:37:44,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1493544284] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:37:44,272 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:37:44,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-28 23:37:44,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655928289] [2021-10-28 23:37:44,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:37:44,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:37:44,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:37:44,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:37:44,275 INFO L87 Difference]: Start difference. First operand 37 states and 36 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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) [2021-10-28 23:38:01,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:01,964 INFO L93 Difference]: Finished difference Result 37 states and 36 transitions. [2021-10-28 23:38:01,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:38:01,981 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 11 [2021-10-28 23:38:01,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:01,982 INFO L225 Difference]: With dead ends: 37 [2021-10-28 23:38:01,982 INFO L226 Difference]: Without dead ends: 35 [2021-10-28 23:38:01,982 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:38:01,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-10-28 23:38:01,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-10-28 23:38:01,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 34 states have internal predecessors, (34), 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) [2021-10-28 23:38:01,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 34 transitions. [2021-10-28 23:38:01,986 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 34 transitions. Word has length 11 [2021-10-28 23:38:01,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:01,987 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 34 transitions. [2021-10-28 23:38:01,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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) [2021-10-28 23:38:01,987 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 34 transitions. [2021-10-28 23:38:01,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-28 23:38:01,988 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:01,988 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:02,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:38:02,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:38:02,188 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-10-28 23:38:02,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:02,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1173935240, now seen corresponding path program 1 times [2021-10-28 23:38:02,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:38:02,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [126769473] [2021-10-28 23:38:02,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:02,190 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:38:02,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:38:02,191 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:38:02,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-28 23:38:02,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:02,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 23:38:02,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:38:02,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:02,474 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:38:02,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:02,596 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:38:02,596 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [126769473] [2021-10-28 23:38:02,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [126769473] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:38:02,597 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:38:02,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-28 23:38:02,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576544609] [2021-10-28 23:38:02,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:38:02,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:38:02,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:38:02,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:38:02,599 INFO L87 Difference]: Start difference. First operand 35 states and 34 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2021-10-28 23:38:06,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:06,318 INFO L93 Difference]: Finished difference Result 35 states and 34 transitions. [2021-10-28 23:38:06,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:38:06,326 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 12 [2021-10-28 23:38:06,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:06,326 INFO L225 Difference]: With dead ends: 35 [2021-10-28 23:38:06,326 INFO L226 Difference]: Without dead ends: 31 [2021-10-28 23:38:06,327 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:38:06,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-10-28 23:38:06,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-10-28 23:38:06,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 30 states have internal predecessors, (30), 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) [2021-10-28 23:38:06,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 30 transitions. [2021-10-28 23:38:06,330 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 30 transitions. Word has length 12 [2021-10-28 23:38:06,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:06,331 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 30 transitions. [2021-10-28 23:38:06,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2021-10-28 23:38:06,331 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 30 transitions. [2021-10-28 23:38:06,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-28 23:38:06,332 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:06,332 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:06,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:38:06,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:38:06,532 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-10-28 23:38:06,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:06,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1424765088, now seen corresponding path program 1 times [2021-10-28 23:38:06,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:38:06,533 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1063089583] [2021-10-28 23:38:06,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:06,534 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:38:06,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:38:06,534 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:38:06,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-28 23:38:06,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:06,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 23:38:06,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:38:06,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:06,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:38:09,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:09,386 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:38:09,386 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1063089583] [2021-10-28 23:38:09,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1063089583] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:38:09,387 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:38:09,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-28 23:38:09,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363269333] [2021-10-28 23:38:09,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:38:09,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:38:09,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:38:09,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:38:09,388 INFO L87 Difference]: Start difference. First operand 31 states and 30 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2021-10-28 23:38:14,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:14,788 INFO L93 Difference]: Finished difference Result 31 states and 30 transitions. [2021-10-28 23:38:14,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:38:14,802 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 14 [2021-10-28 23:38:14,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:14,802 INFO L225 Difference]: With dead ends: 31 [2021-10-28 23:38:14,803 INFO L226 Difference]: Without dead ends: 29 [2021-10-28 23:38:14,803 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:38:14,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-10-28 23:38:14,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-10-28 23:38:14,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 25 states have (on average 1.12) internal successors, (28), 28 states have internal predecessors, (28), 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) [2021-10-28 23:38:14,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 28 transitions. [2021-10-28 23:38:14,806 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 28 transitions. Word has length 14 [2021-10-28 23:38:14,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:14,807 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 28 transitions. [2021-10-28 23:38:14,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2021-10-28 23:38:14,807 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 28 transitions. [2021-10-28 23:38:14,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-28 23:38:14,808 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:14,808 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:14,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:38:15,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:38:15,009 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-10-28 23:38:15,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:15,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1218048905, now seen corresponding path program 1 times [2021-10-28 23:38:15,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:38:15,010 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [188406726] [2021-10-28 23:38:15,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:15,010 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:38:15,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:38:15,014 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:38:15,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-28 23:38:15,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:15,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 23:38:15,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:38:15,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:15,348 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:38:17,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:17,983 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:38:17,984 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [188406726] [2021-10-28 23:38:17,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [188406726] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:38:17,984 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:38:17,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-28 23:38:17,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477240089] [2021-10-28 23:38:17,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:38:17,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:38:17,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:38:17,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:38:17,986 INFO L87 Difference]: Start difference. First operand 29 states and 28 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2021-10-28 23:38:21,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:21,743 INFO L93 Difference]: Finished difference Result 29 states and 28 transitions. [2021-10-28 23:38:21,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:38:21,757 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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 [2021-10-28 23:38:21,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:21,757 INFO L225 Difference]: With dead ends: 29 [2021-10-28 23:38:21,757 INFO L226 Difference]: Without dead ends: 27 [2021-10-28 23:38:21,757 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:38:21,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-10-28 23:38:21,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-10-28 23:38:21,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 26 states have internal predecessors, (26), 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) [2021-10-28 23:38:21,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2021-10-28 23:38:21,760 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 15 [2021-10-28 23:38:21,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:21,761 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2021-10-28 23:38:21,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2021-10-28 23:38:21,761 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2021-10-28 23:38:21,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-28 23:38:21,761 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:21,762 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:21,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:38:21,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:38:21,966 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-10-28 23:38:21,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:21,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1279638800, now seen corresponding path program 1 times [2021-10-28 23:38:21,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:38:21,967 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1248720089] [2021-10-28 23:38:21,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:21,967 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:38:21,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:38:21,968 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:38:21,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-28 23:38:22,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:22,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 23:38:22,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:38:22,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:38:22,709 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:38:28,547 WARN L838 $PredicateComparison]: unable to prove that (fp.leq (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~smallestNormalFloat~0) c_ULTIMATE.start_main_~v~0) (fp.sub c_currentRoundingMode c_ULTIMATE.start_main_~v~0 ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~largestSubnormalFloat~0))) is different from false [2021-10-28 23:39:26,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:39:26,343 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:39:26,343 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1248720089] [2021-10-28 23:39:26,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1248720089] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:39:26,344 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:39:26,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-28 23:39:26,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587116446] [2021-10-28 23:39:26,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:39:26,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:39:26,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:39:26,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=7, Unknown=1, NotChecked=4, Total=20 [2021-10-28 23:39:26,346 INFO L87 Difference]: Start difference. First operand 27 states and 26 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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) [2021-10-28 23:39:31,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:39:31,509 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2021-10-28 23:39:31,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:39:31,525 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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 18 [2021-10-28 23:39:31,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:39:31,525 INFO L225 Difference]: With dead ends: 27 [2021-10-28 23:39:31,525 INFO L226 Difference]: Without dead ends: 23 [2021-10-28 23:39:31,526 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=8, Invalid=7, Unknown=1, NotChecked=4, Total=20 [2021-10-28 23:39:31,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-10-28 23:39:31,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-10-28 23:39:31,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.0) internal successors, (22), 22 states have internal predecessors, (22), 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) [2021-10-28 23:39:31,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2021-10-28 23:39:31,528 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 18 [2021-10-28 23:39:31,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:39:31,529 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2021-10-28 23:39:31,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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) [2021-10-28 23:39:31,529 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2021-10-28 23:39:31,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-28 23:39:31,530 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:39:31,530 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] [2021-10-28 23:39:31,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:39:31,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:39:31,731 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-10-28 23:39:31,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:39:31,731 INFO L85 PathProgramCache]: Analyzing trace with hash -39659491, now seen corresponding path program 1 times [2021-10-28 23:39:31,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:39:31,732 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1857791260] [2021-10-28 23:39:31,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:39:31,732 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:39:31,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:39:31,733 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:39:31,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-28 23:39:32,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:39:32,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 23:39:32,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:39:43,964 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~f~0 (_ FloatingPoint 8 24))) (and (not (fp.eq ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven ULTIMATE.start_main_~f~0)) ULTIMATE.start_main_~f~0)) (fp.isSubnormal ULTIMATE.start_main_~f~0))) is different from false [2021-10-28 23:39:45,976 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~f~0 (_ FloatingPoint 8 24))) (and (not (fp.eq ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven ULTIMATE.start_main_~f~0)) ULTIMATE.start_main_~f~0)) (fp.isSubnormal ULTIMATE.start_main_~f~0))) is different from true [2021-10-28 23:39:45,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:39:45,976 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:40:27,024 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~f~0_33 (_ FloatingPoint 8 24))) (or (fp.eq ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode v_ULTIMATE.start_main_~f~0_33)) v_ULTIMATE.start_main_~f~0_33) (not (fp.isSubnormal v_ULTIMATE.start_main_~f~0_33)))) is different from false [2021-10-28 23:40:29,035 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~f~0_33 (_ FloatingPoint 8 24))) (or (fp.eq ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode v_ULTIMATE.start_main_~f~0_33)) v_ULTIMATE.start_main_~f~0_33) (not (fp.isSubnormal v_ULTIMATE.start_main_~f~0_33)))) is different from true [2021-10-28 23:41:59,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:41:59,736 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:41:59,736 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1857791260] [2021-10-28 23:41:59,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1857791260] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:41:59,736 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:41:59,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2021-10-28 23:41:59,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208691201] [2021-10-28 23:41:59,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 23:41:59,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:41:59,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:41:59,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=25, Unknown=7, NotChecked=22, Total=72 [2021-10-28 23:41:59,738 INFO L87 Difference]: Start difference. First operand 23 states and 22 transitions. Second operand has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 8 states have internal predecessors, (44), 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) [2021-10-28 23:42:03,955 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_main_~f~0_33 (_ FloatingPoint 8 24))) (or (fp.eq ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode v_ULTIMATE.start_main_~f~0_33)) v_ULTIMATE.start_main_~f~0_33) (not (fp.isSubnormal v_ULTIMATE.start_main_~f~0_33)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-10-28 23:42:19,023 WARN L207 SmtUtils]: Spent 13.12 s on a formula simplification that was a NOOP. DAG size: 19 [2021-10-28 23:42:39,219 WARN L207 SmtUtils]: Spent 18.30 s on a formula simplification. DAG size of input: 18 DAG size of output: 12 [2021-10-28 23:42:39,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:42:39,220 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2021-10-28 23:42:39,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:42:39,220 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 8 states have internal predecessors, (44), 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 [2021-10-28 23:42:39,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:42:39,220 INFO L225 Difference]: With dead ends: 23 [2021-10-28 23:42:39,221 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 23:42:39,221 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 62.7s TimeCoverageRelationStatistics Valid=33, Invalid=43, Unknown=8, NotChecked=48, Total=132 [2021-10-28 23:42:39,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 23:42:39,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 23:42:39,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-10-28 23:42:39,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 23:42:39,222 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2021-10-28 23:42:39,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:42:39,222 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:42:39,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 8 states have internal predecessors, (44), 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) [2021-10-28 23:42:39,222 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:42:39,222 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 23:42:39,224 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:42:39,225 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:42:39,225 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:42:39,225 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:42:39,225 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:42:39,225 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:42:39,225 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:42:39,225 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:42:39,226 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:42:39,226 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:42:39,226 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:42:39,226 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:42:39,226 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:42:39,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:42:39,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:42:39,432 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 23:42:39,435 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:42:39,473 INFO L857 garLoopResultBuilder]: For program point L2-1(line 391) no Hoare annotation was computed. [2021-10-28 23:42:39,473 INFO L857 garLoopResultBuilder]: For program point L2-2(line 402) no Hoare annotation was computed. [2021-10-28 23:42:39,473 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 397) no Hoare annotation was computed. [2021-10-28 23:42:39,474 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 387) no Hoare annotation was computed. [2021-10-28 23:42:39,474 INFO L857 garLoopResultBuilder]: For program point L399(line 399) no Hoare annotation was computed. [2021-10-28 23:42:39,474 INFO L857 garLoopResultBuilder]: For program point L399-2(line 399) no Hoare annotation was computed. [2021-10-28 23:42:39,474 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 402) no Hoare annotation was computed. [2021-10-28 23:42:39,474 INFO L857 garLoopResultBuilder]: For program point L391(line 391) no Hoare annotation was computed. [2021-10-28 23:42:39,474 INFO L857 garLoopResultBuilder]: For program point L391-2(lines 379 404) no Hoare annotation was computed. [2021-10-28 23:42:39,475 INFO L857 garLoopResultBuilder]: For program point L3(line 3) no Hoare annotation was computed. [2021-10-28 23:42:39,475 INFO L857 garLoopResultBuilder]: For program point L3-2(line 3) no Hoare annotation was computed. [2021-10-28 23:42:39,475 INFO L857 garLoopResultBuilder]: For program point L3-4(line 3) no Hoare annotation was computed. [2021-10-28 23:42:39,475 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 392) no Hoare annotation was computed. [2021-10-28 23:42:39,475 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 23:42:39,475 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 23:42:39,476 INFO L857 garLoopResultBuilder]: For program point L392(line 392) no Hoare annotation was computed. [2021-10-28 23:42:39,476 INFO L857 garLoopResultBuilder]: For program point L392-2(lines 379 404) no Hoare annotation was computed. [2021-10-28 23:42:39,476 INFO L857 garLoopResultBuilder]: For program point L384(line 384) no Hoare annotation was computed. [2021-10-28 23:42:39,476 INFO L857 garLoopResultBuilder]: For program point L384-1(line 384) no Hoare annotation was computed. [2021-10-28 23:42:39,476 INFO L857 garLoopResultBuilder]: For program point L384-3(line 384) no Hoare annotation was computed. [2021-10-28 23:42:39,476 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 399) no Hoare annotation was computed. [2021-10-28 23:42:39,477 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 391) no Hoare annotation was computed. [2021-10-28 23:42:39,477 INFO L857 garLoopResultBuilder]: For program point L393(line 393) no Hoare annotation was computed. [2021-10-28 23:42:39,477 INFO L857 garLoopResultBuilder]: For program point L393-2(lines 379 404) no Hoare annotation was computed. [2021-10-28 23:42:39,477 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 394) no Hoare annotation was computed. [2021-10-28 23:42:39,477 INFO L857 garLoopResultBuilder]: For program point L402(line 402) no Hoare annotation was computed. [2021-10-28 23:42:39,477 INFO L857 garLoopResultBuilder]: For program point L402-2(line 402) no Hoare annotation was computed. [2021-10-28 23:42:39,478 INFO L857 garLoopResultBuilder]: For program point L394(line 394) no Hoare annotation was computed. [2021-10-28 23:42:39,478 INFO L857 garLoopResultBuilder]: For program point L394-2(lines 379 404) no Hoare annotation was computed. [2021-10-28 23:42:39,478 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 393) no Hoare annotation was computed. [2021-10-28 23:42:39,478 INFO L853 garLoopResultBuilder]: At program point L403(lines 378 404) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_main_~largestSubnormalFloat~0 ((_ to_fp 8 24) currentRoundingMode (/ 8388607.0 713623846352979940529142984724747568191373312.0)))) [2021-10-28 23:42:39,478 INFO L857 garLoopResultBuilder]: For program point L395(line 395) no Hoare annotation was computed. [2021-10-28 23:42:39,479 INFO L857 garLoopResultBuilder]: For program point L395-2(lines 379 404) no Hoare annotation was computed. [2021-10-28 23:42:39,479 INFO L857 garLoopResultBuilder]: For program point L387(line 387) no Hoare annotation was computed. [2021-10-28 23:42:39,479 INFO L857 garLoopResultBuilder]: For program point L387-2(lines 379 404) no Hoare annotation was computed. [2021-10-28 23:42:39,479 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-28 23:42:39,479 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 396) no Hoare annotation was computed. [2021-10-28 23:42:39,479 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 384) no Hoare annotation was computed. [2021-10-28 23:42:39,479 INFO L857 garLoopResultBuilder]: For program point L396(line 396) no Hoare annotation was computed. [2021-10-28 23:42:39,480 INFO L857 garLoopResultBuilder]: For program point L396-2(lines 379 404) no Hoare annotation was computed. [2021-10-28 23:42:39,480 INFO L857 garLoopResultBuilder]: For program point L388(line 388) no Hoare annotation was computed. [2021-10-28 23:42:39,480 INFO L857 garLoopResultBuilder]: For program point L388-2(line 388) no Hoare annotation was computed. [2021-10-28 23:42:39,480 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 23:42:39,480 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 395) no Hoare annotation was computed. [2021-10-28 23:42:39,480 INFO L857 garLoopResultBuilder]: For program point L397(line 397) no Hoare annotation was computed. [2021-10-28 23:42:39,481 INFO L857 garLoopResultBuilder]: For program point L397-2(lines 379 404) no Hoare annotation was computed. [2021-10-28 23:42:39,481 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 398) no Hoare annotation was computed. [2021-10-28 23:42:39,481 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 388) no Hoare annotation was computed. [2021-10-28 23:42:39,481 INFO L857 garLoopResultBuilder]: For program point L398(line 398) no Hoare annotation was computed. [2021-10-28 23:42:39,481 INFO L857 garLoopResultBuilder]: For program point L398-2(lines 379 404) no Hoare annotation was computed. [2021-10-28 23:42:39,481 INFO L857 garLoopResultBuilder]: For program point L2(line 387) no Hoare annotation was computed. [2021-10-28 23:42:39,485 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:42:39,486 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:42:39,492 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:42:39,499 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:42:39,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:42:39 BoogieIcfgContainer [2021-10-28 23:42:39,501 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:42:39,502 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:42:39,502 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:42:39,502 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:42:39,503 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:37:01" (3/4) ... [2021-10-28 23:42:39,505 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 23:42:39,517 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-28 23:42:39,517 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 23:42:39,518 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:42:39,518 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:42:39,544 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: largestSubnormalFloat == ~to_fp~LONGDOUBLE(currentRoundingMode, 8388607/713623846352979940529142984724747568191373312)) [2021-10-28 23:42:39,561 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:42:39,561 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:42:39,562 INFO L168 Benchmark]: Toolchain (without parser) took 349328.13 ms. Allocated memory was 90.2 MB in the beginning and 123.7 MB in the end (delta: 33.6 MB). Free memory was 53.7 MB in the beginning and 37.1 MB in the end (delta: 16.6 MB). Peak memory consumption was 50.9 MB. Max. memory is 16.1 GB. [2021-10-28 23:42:39,563 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 90.2 MB. Free memory is still 71.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:42:39,563 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1226.29 ms. Allocated memory is still 90.2 MB. Free memory was 53.4 MB in the beginning and 64.3 MB in the end (delta: -10.9 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:42:39,564 INFO L168 Benchmark]: Boogie Procedure Inliner took 103.64 ms. Allocated memory is still 90.2 MB. Free memory was 64.3 MB in the beginning and 61.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:42:39,564 INFO L168 Benchmark]: Boogie Preprocessor took 72.91 ms. Allocated memory is still 90.2 MB. Free memory was 61.4 MB in the beginning and 60.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:42:39,565 INFO L168 Benchmark]: RCFGBuilder took 10337.86 ms. Allocated memory is still 90.2 MB. Free memory was 59.7 MB in the beginning and 48.4 MB in the end (delta: 11.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:42:39,565 INFO L168 Benchmark]: TraceAbstraction took 337518.53 ms. Allocated memory was 90.2 MB in the beginning and 123.7 MB in the end (delta: 33.6 MB). Free memory was 48.0 MB in the beginning and 41.3 MB in the end (delta: 6.7 MB). Peak memory consumption was 39.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:42:39,566 INFO L168 Benchmark]: Witness Printer took 59.81 ms. Allocated memory is still 123.7 MB. Free memory was 41.3 MB in the beginning and 37.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:42:39,568 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 90.2 MB. Free memory is still 71.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1226.29 ms. Allocated memory is still 90.2 MB. Free memory was 53.4 MB in the beginning and 64.3 MB in the end (delta: -10.9 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 103.64 ms. Allocated memory is still 90.2 MB. Free memory was 64.3 MB in the beginning and 61.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 72.91 ms. Allocated memory is still 90.2 MB. Free memory was 61.4 MB in the beginning and 60.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 10337.86 ms. Allocated memory is still 90.2 MB. Free memory was 59.7 MB in the beginning and 48.4 MB in the end (delta: 11.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 337518.53 ms. Allocated memory was 90.2 MB in the beginning and 123.7 MB in the end (delta: 33.6 MB). Free memory was 48.0 MB in the beginning and 41.3 MB in the end (delta: 6.7 MB). Peak memory consumption was 39.0 MB. Max. memory is 16.1 GB. * Witness Printer took 59.81 ms. Allocated memory is still 123.7 MB. Free memory was 41.3 MB in the beginning and 37.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 384]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 387]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 388]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 391]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 392]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 393]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 394]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 395]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 396]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 397]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 398]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 399]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 402]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 51 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 337.4s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 92.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 152 SDtfs, 335 SDslu, 76 SDs, 0 SdLazy, 209 SolverSat, 4 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 51.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 210 GetRequests, 172 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 79.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=0, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 6 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 241.2s InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 204 ConstructedInterpolants, 46 QuantifiedInterpolants, 1614 SizeOfPredicates, 38 NumberOfNonLiveVariables, 312 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 13 specifications checked. All of them hold - InvariantResult [Line: 378]: Loop Invariant [2021-10-28 23:42:39,587 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-28 23:42:39,588 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: largestSubnormalFloat == ~to_fp~LONGDOUBLE(currentRoundingMode, 8388607/713623846352979940529142984724747568191373312)) RESULT: Ultimate proved your program to be correct! [2021-10-28 23:42:39,709 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4139bfb0-0023-4203-9539-8e567a57b9e6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...