./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound50.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71744110-acfa-4068-91ca-e33b0f0e3060/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71744110-acfa-4068-91ca-e33b0f0e3060/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71744110-acfa-4068-91ca-e33b0f0e3060/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71744110-acfa-4068-91ca-e33b0f0e3060/bin/uautomizer-ZXIjhQolGL/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound50.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71744110-acfa-4068-91ca-e33b0f0e3060/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71744110-acfa-4068-91ca-e33b0f0e3060/bin/uautomizer-ZXIjhQolGL --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 bb5ad63279572b10ccf828ab50fb4850c30a9bc769c3e514e6f9dd22eeb86526 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 04:21:00,001 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 04:21:00,005 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 04:21:00,064 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 04:21:00,065 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 04:21:00,070 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 04:21:00,073 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 04:21:00,077 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 04:21:00,080 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 04:21:00,086 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 04:21:00,088 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 04:21:00,090 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 04:21:00,090 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 04:21:00,093 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 04:21:00,094 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 04:21:00,096 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 04:21:00,097 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 04:21:00,099 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 04:21:00,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 04:21:00,104 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 04:21:00,106 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 04:21:00,108 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 04:21:00,110 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 04:21:00,111 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 04:21:00,115 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 04:21:00,116 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 04:21:00,116 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 04:21:00,118 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 04:21:00,119 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 04:21:00,120 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 04:21:00,121 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 04:21:00,122 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 04:21:00,124 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 04:21:00,125 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 04:21:00,126 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 04:21:00,127 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 04:21:00,128 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 04:21:00,128 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 04:21:00,128 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 04:21:00,130 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 04:21:00,131 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 04:21:00,132 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71744110-acfa-4068-91ca-e33b0f0e3060/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-19 04:21:00,169 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 04:21:00,169 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 04:21:00,170 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 04:21:00,170 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 04:21:00,177 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 04:21:00,177 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 04:21:00,178 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 04:21:00,178 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 04:21:00,179 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 04:21:00,179 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 04:21:00,180 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 04:21:00,181 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 04:21:00,181 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 04:21:00,181 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 04:21:00,181 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 04:21:00,181 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 04:21:00,182 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 04:21:00,182 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 04:21:00,182 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 04:21:00,182 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 04:21:00,182 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 04:21:00,183 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 04:21:00,183 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 04:21:00,183 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 04:21:00,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:21:00,183 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 04:21:00,184 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 04:21:00,184 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 04:21:00,185 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 04:21:00,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 04:21:00,187 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-19 04:21:00,187 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-19 04:21:00,188 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 04:21:00,188 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 04:21:00,188 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_71744110-acfa-4068-91ca-e33b0f0e3060/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71744110-acfa-4068-91ca-e33b0f0e3060/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb5ad63279572b10ccf828ab50fb4850c30a9bc769c3e514e6f9dd22eeb86526 [2021-11-19 04:21:00,511 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 04:21:00,545 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 04:21:00,548 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 04:21:00,550 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 04:21:00,551 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 04:21:00,553 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71744110-acfa-4068-91ca-e33b0f0e3060/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound50.i [2021-11-19 04:21:00,633 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71744110-acfa-4068-91ca-e33b0f0e3060/bin/uautomizer-ZXIjhQolGL/data/10e151c9a/09e13935e8564c54ad5d9fb0caebd4f2/FLAGaa3f264ff [2021-11-19 04:21:01,130 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 04:21:01,131 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71744110-acfa-4068-91ca-e33b0f0e3060/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound50.i [2021-11-19 04:21:01,137 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71744110-acfa-4068-91ca-e33b0f0e3060/bin/uautomizer-ZXIjhQolGL/data/10e151c9a/09e13935e8564c54ad5d9fb0caebd4f2/FLAGaa3f264ff [2021-11-19 04:21:01,515 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71744110-acfa-4068-91ca-e33b0f0e3060/bin/uautomizer-ZXIjhQolGL/data/10e151c9a/09e13935e8564c54ad5d9fb0caebd4f2 [2021-11-19 04:21:01,518 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 04:21:01,520 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 04:21:01,522 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 04:21:01,522 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 04:21:01,526 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 04:21:01,526 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:21:01" (1/1) ... [2021-11-19 04:21:01,528 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46aaeeac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:21:01, skipping insertion in model container [2021-11-19 04:21:01,528 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:21:01" (1/1) ... [2021-11-19 04:21:01,536 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 04:21:01,556 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 04:21:01,757 WARN L230 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_71744110-acfa-4068-91ca-e33b0f0e3060/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound50.i[948,961] [2021-11-19 04:21:01,791 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: sqrt 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:1761) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:235) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1438) 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:737) 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:1389) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1076) 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:1460) 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:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2350) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:602) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-19 04:21:01,811 INFO L158 Benchmark]: Toolchain (without parser) took 288.78ms. Allocated memory was 92.3MB in the beginning and 121.6MB in the end (delta: 29.4MB). Free memory was 58.8MB in the beginning and 97.6MB in the end (delta: -38.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 04:21:01,814 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 92.3MB. Free memory was 44.5MB in the beginning and 44.4MB in the end (delta: 50.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:21:01,817 INFO L158 Benchmark]: CACSL2BoogieTranslator took 285.88ms. Allocated memory was 92.3MB in the beginning and 121.6MB in the end (delta: 29.4MB). Free memory was 58.6MB in the beginning and 97.6MB in the end (delta: -39.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 04:21:01,821 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 92.3MB. Free memory was 44.5MB in the beginning and 44.4MB in the end (delta: 50.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 285.88ms. Allocated memory was 92.3MB in the beginning and 121.6MB in the end (delta: 29.4MB). Free memory was 58.6MB in the beginning and 97.6MB in the end (delta: -39.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt: 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... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71744110-acfa-4068-91ca-e33b0f0e3060/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71744110-acfa-4068-91ca-e33b0f0e3060/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71744110-acfa-4068-91ca-e33b0f0e3060/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71744110-acfa-4068-91ca-e33b0f0e3060/bin/uautomizer-ZXIjhQolGL/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound50.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71744110-acfa-4068-91ca-e33b0f0e3060/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71744110-acfa-4068-91ca-e33b0f0e3060/bin/uautomizer-ZXIjhQolGL --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 bb5ad63279572b10ccf828ab50fb4850c30a9bc769c3e514e6f9dd22eeb86526 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 04:21:04,234 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 04:21:04,238 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 04:21:04,303 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 04:21:04,304 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 04:21:04,309 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 04:21:04,312 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 04:21:04,320 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 04:21:04,323 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 04:21:04,331 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 04:21:04,332 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 04:21:04,334 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 04:21:04,335 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 04:21:04,338 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 04:21:04,340 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 04:21:04,342 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 04:21:04,344 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 04:21:04,345 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 04:21:04,351 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 04:21:04,360 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 04:21:04,363 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 04:21:04,365 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 04:21:04,369 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 04:21:04,371 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 04:21:04,375 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 04:21:04,375 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 04:21:04,376 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 04:21:04,378 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 04:21:04,379 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 04:21:04,380 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 04:21:04,380 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 04:21:04,381 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 04:21:04,383 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 04:21:04,384 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 04:21:04,386 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 04:21:04,386 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 04:21:04,394 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 04:21:04,394 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 04:21:04,394 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 04:21:04,397 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 04:21:04,397 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 04:21:04,398 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71744110-acfa-4068-91ca-e33b0f0e3060/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-19 04:21:04,448 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 04:21:04,449 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 04:21:04,449 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 04:21:04,450 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 04:21:04,451 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 04:21:04,451 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 04:21:04,452 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 04:21:04,452 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 04:21:04,453 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 04:21:04,453 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 04:21:04,453 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 04:21:04,454 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 04:21:04,454 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 04:21:04,454 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 04:21:04,454 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 04:21:04,455 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 04:21:04,455 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 04:21:04,455 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 04:21:04,456 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 04:21:04,456 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 04:21:04,456 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 04:21:04,457 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 04:21:04,457 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 04:21:04,457 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 04:21:04,458 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 04:21:04,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:21:04,458 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 04:21:04,458 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 04:21:04,459 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 04:21:04,459 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-19 04:21:04,459 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 04:21:04,460 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-19 04:21:04,460 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-19 04:21:04,460 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 04:21:04,460 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 04:21:04,461 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 04:21:04,461 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_71744110-acfa-4068-91ca-e33b0f0e3060/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71744110-acfa-4068-91ca-e33b0f0e3060/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb5ad63279572b10ccf828ab50fb4850c30a9bc769c3e514e6f9dd22eeb86526 [2021-11-19 04:21:04,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 04:21:04,979 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 04:21:04,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 04:21:04,984 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 04:21:04,985 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 04:21:04,986 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71744110-acfa-4068-91ca-e33b0f0e3060/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound50.i [2021-11-19 04:21:05,077 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71744110-acfa-4068-91ca-e33b0f0e3060/bin/uautomizer-ZXIjhQolGL/data/fa6bb5ff7/a26c567a373b4c21b47de93d4b83b47e/FLAGb18917406 [2021-11-19 04:21:05,662 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 04:21:05,662 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71744110-acfa-4068-91ca-e33b0f0e3060/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound50.i [2021-11-19 04:21:05,676 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71744110-acfa-4068-91ca-e33b0f0e3060/bin/uautomizer-ZXIjhQolGL/data/fa6bb5ff7/a26c567a373b4c21b47de93d4b83b47e/FLAGb18917406 [2021-11-19 04:21:05,993 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71744110-acfa-4068-91ca-e33b0f0e3060/bin/uautomizer-ZXIjhQolGL/data/fa6bb5ff7/a26c567a373b4c21b47de93d4b83b47e [2021-11-19 04:21:05,998 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 04:21:06,001 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 04:21:06,003 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 04:21:06,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 04:21:06,008 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 04:21:06,009 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:21:05" (1/1) ... [2021-11-19 04:21:06,013 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@281e9d87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:21:06, skipping insertion in model container [2021-11-19 04:21:06,013 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:21:05" (1/1) ... [2021-11-19 04:21:06,022 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 04:21:06,052 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 04:21:06,277 WARN L230 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_71744110-acfa-4068-91ca-e33b0f0e3060/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound50.i[948,961] [2021-11-19 04:21:06,364 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:21:06,402 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 04:21:06,428 WARN L230 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_71744110-acfa-4068-91ca-e33b0f0e3060/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound50.i[948,961] [2021-11-19 04:21:06,466 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:21:06,484 INFO L208 MainTranslator]: Completed translation [2021-11-19 04:21:06,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:21:06 WrapperNode [2021-11-19 04:21:06,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 04:21:06,486 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 04:21:06,486 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 04:21:06,486 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 04:21:06,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:21:06" (1/1) ... [2021-11-19 04:21:06,504 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:21:06" (1/1) ... [2021-11-19 04:21:06,528 INFO L137 Inliner]: procedures = 18, calls = 14, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 66 [2021-11-19 04:21:06,528 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 04:21:06,529 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 04:21:06,529 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 04:21:06,529 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 04:21:06,539 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:21:06" (1/1) ... [2021-11-19 04:21:06,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:21:06" (1/1) ... [2021-11-19 04:21:06,543 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:21:06" (1/1) ... [2021-11-19 04:21:06,544 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:21:06" (1/1) ... [2021-11-19 04:21:06,553 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:21:06" (1/1) ... [2021-11-19 04:21:06,567 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:21:06" (1/1) ... [2021-11-19 04:21:06,573 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:21:06" (1/1) ... [2021-11-19 04:21:06,576 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 04:21:06,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 04:21:06,578 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 04:21:06,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 04:21:06,579 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:21:06" (1/1) ... [2021-11-19 04:21:06,597 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:21:06,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71744110-acfa-4068-91ca-e33b0f0e3060/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:06,623 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71744110-acfa-4068-91ca-e33b0f0e3060/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 04:21:06,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71744110-acfa-4068-91ca-e33b0f0e3060/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 04:21:06,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 04:21:06,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 04:21:06,683 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-19 04:21:06,683 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-19 04:21:06,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 04:21:06,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 04:21:06,684 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-19 04:21:06,684 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-19 04:21:06,776 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 04:21:06,778 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 04:21:09,726 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 04:21:09,743 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 04:21:09,757 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 04:21:09,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:21:09 BoogieIcfgContainer [2021-11-19 04:21:09,759 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 04:21:09,762 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 04:21:09,762 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 04:21:09,765 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 04:21:09,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:21:05" (1/3) ... [2021-11-19 04:21:09,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@87ea4da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:21:09, skipping insertion in model container [2021-11-19 04:21:09,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:21:06" (2/3) ... [2021-11-19 04:21:09,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@87ea4da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:21:09, skipping insertion in model container [2021-11-19 04:21:09,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:21:09" (3/3) ... [2021-11-19 04:21:09,783 INFO L111 eAbstractionObserver]: Analyzing ICFG knuth_valuebound50.i [2021-11-19 04:21:09,791 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 04:21:09,791 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 04:21:09,862 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 04:21:09,870 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 04:21:09,871 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 04:21:09,902 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 20 states have internal predecessors, (28), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-19 04:21:09,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-19 04:21:09,910 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:21:09,911 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:21:09,912 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:21:09,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:21:09,923 INFO L85 PathProgramCache]: Analyzing trace with hash 919095715, now seen corresponding path program 1 times [2021-11-19 04:21:09,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:21:09,936 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2143964771] [2021-11-19 04:21:09,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:21:09,938 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:21:09,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71744110-acfa-4068-91ca-e33b0f0e3060/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:21:09,941 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71744110-acfa-4068-91ca-e33b0f0e3060/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:21:09,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71744110-acfa-4068-91ca-e33b0f0e3060/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 04:21:10,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:21:10,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-19 04:21:10,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:21:10,974 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-19 04:21:10,974 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:21:11,302 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-19 04:21:11,303 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:21:11,303 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2143964771] [2021-11-19 04:21:11,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2143964771] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 04:21:11,304 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 04:21:11,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2021-11-19 04:21:11,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868866881] [2021-11-19 04:21:11,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:21:11,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 04:21:11,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:21:11,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 04:21:11,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 04:21:11,350 INFO L87 Difference]: Start difference. First operand has 31 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 20 states have internal predecessors, (28), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-19 04:21:11,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:21:11,373 INFO L93 Difference]: Finished difference Result 59 states and 92 transitions. [2021-11-19 04:21:11,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 04:21:11,375 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 29 [2021-11-19 04:21:11,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:21:11,383 INFO L225 Difference]: With dead ends: 59 [2021-11-19 04:21:11,383 INFO L226 Difference]: Without dead ends: 27 [2021-11-19 04:21:11,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 04:21:11,391 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 04:21:11,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 04:21:11,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-11-19 04:21:11,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-11-19 04:21:11,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 16 states have (on average 1.25) internal successors, (20), 16 states have internal predecessors, (20), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-19 04:21:11,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2021-11-19 04:21:11,437 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 29 [2021-11-19 04:21:11,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:21:11,438 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2021-11-19 04:21:11,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-19 04:21:11,438 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2021-11-19 04:21:11,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-19 04:21:11,441 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:21:11,441 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:21:11,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71744110-acfa-4068-91ca-e33b0f0e3060/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 04:21:11,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71744110-acfa-4068-91ca-e33b0f0e3060/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:21:11,661 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:21:11,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:21:11,665 INFO L85 PathProgramCache]: Analyzing trace with hash -960358297, now seen corresponding path program 1 times [2021-11-19 04:21:11,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:21:11,670 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1894984310] [2021-11-19 04:21:11,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:21:11,671 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:21:11,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71744110-acfa-4068-91ca-e33b0f0e3060/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:21:11,673 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71744110-acfa-4068-91ca-e33b0f0e3060/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:21:11,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71744110-acfa-4068-91ca-e33b0f0e3060/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 04:21:29,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:21:29,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-19 04:21:29,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:24:38,855 WARN L838 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| (_ BitVec 32)) (|v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| (_ BitVec 32))) (and (bvule |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| (_ bv50 32)) (not (= (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4|) (let ((.cse0 (bvadd (_ bv4294967294 32) |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|))) (let ((.cse1 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|)) (.cse3 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|))) (.cse2 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| .cse0))) (bvadd (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| .cse0) |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|)) (bvmul (_ bv8 32) .cse1) (bvmul (_ bv4 32) (bvmul .cse2 |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|)) (bvneg (bvmul (bvmul .cse1 (_ bv4 32)) |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|)) (bvmul (_ bv4 32) (bvmul .cse3 |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|)) (bvneg (bvmul (bvadd (bvmul .cse3 (_ bv8 32)) (bvmul .cse2 (_ bv8 32))) |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|))))))) (bvule |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| (_ bv50 32)))) is different from false [2021-11-19 04:24:40,888 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| (_ BitVec 32)) (|v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| (_ BitVec 32))) (and (bvule |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| (_ bv50 32)) (not (= (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4|) (let ((.cse0 (bvadd (_ bv4294967294 32) |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|))) (let ((.cse1 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|)) (.cse3 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|))) (.cse2 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| .cse0))) (bvadd (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| .cse0) |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|)) (bvmul (_ bv8 32) .cse1) (bvmul (_ bv4 32) (bvmul .cse2 |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|)) (bvneg (bvmul (bvmul .cse1 (_ bv4 32)) |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|)) (bvmul (_ bv4 32) (bvmul .cse3 |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1| |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|)) (bvneg (bvmul (bvadd (bvmul .cse3 (_ bv8 32)) (bvmul .cse2 (_ bv8 32))) |v_ULTIMATE.start_main_~d~0#1_BEFORE_CALL_1|))))))) (bvule |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_4| (_ bv50 32)))) is different from true [2021-11-19 04:24:40,889 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 04:24:40,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:25:00,692 WARN L860 $PredicateComparison]: unable to prove that (= (let ((.cse2 (bvadd |c_ULTIMATE.start_main_~a~0#1| (_ bv4294967294 32)))) (let ((.cse1 (bvneg (bvudiv |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|))) (.cse3 (bvurem |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|)) (.cse0 (bvudiv |c_ULTIMATE.start_main_~n~0#1| .cse2))) (bvadd (bvneg (bvmul (bvadd (bvmul .cse0 (_ bv8 32)) (bvmul .cse1 (_ bv8 32))) |c_ULTIMATE.start_main_~a~0#1|)) (bvmul (_ bv4 32) (bvmul (bvurem |c_ULTIMATE.start_main_~n~0#1| .cse2) |c_ULTIMATE.start_main_~a~0#1|)) (bvmul (_ bv8 32) .cse3) (bvmul (_ bv4 32) (bvmul .cse1 |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1|)) (bvneg (bvmul (bvmul .cse3 (_ bv4 32)) |c_ULTIMATE.start_main_~a~0#1|)) (bvmul (_ bv4 32) (bvmul .cse0 |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1|))))) (bvmul (_ bv8 32) |c_ULTIMATE.start_main_~n~0#1|)) is different from true [2021-11-19 04:25:10,513 WARN L860 $PredicateComparison]: unable to prove that (or (not (bvugt |c_ULTIMATE.start_main_~a~0#1| (_ bv2 32))) (= (let ((.cse2 (bvadd |c_ULTIMATE.start_main_~a~0#1| (_ bv4294967294 32)))) (let ((.cse1 (bvneg (bvudiv |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|))) (.cse3 (bvurem |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|)) (.cse0 (bvudiv |c_ULTIMATE.start_main_~n~0#1| .cse2))) (bvadd (bvneg (bvmul (bvadd (bvmul .cse0 (_ bv8 32)) (bvmul .cse1 (_ bv8 32))) |c_ULTIMATE.start_main_~a~0#1|)) (bvmul (_ bv4 32) (bvmul (bvurem |c_ULTIMATE.start_main_~n~0#1| .cse2) |c_ULTIMATE.start_main_~a~0#1|)) (bvmul (_ bv8 32) .cse3) (bvmul (_ bv4 32) (bvmul .cse1 |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1|)) (bvneg (bvmul (bvmul .cse3 (_ bv4 32)) |c_ULTIMATE.start_main_~a~0#1|)) (bvmul (_ bv4 32) (bvmul .cse0 |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1|))))) (bvmul (_ bv8 32) |c_ULTIMATE.start_main_~n~0#1|))) is different from true [2021-11-19 04:25:23,178 WARN L860 $PredicateComparison]: unable to prove that (or (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32))) (forall ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ BitVec 32))) (or (= (let ((.cse1 (bvadd |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ bv4294967294 32)))) (let ((.cse0 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|))) (.cse3 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)) (.cse2 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| .cse1))) (bvadd (bvmul (_ bv4 32) (bvmul .cse0 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)) (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| .cse1) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)) (bvneg (bvmul (bvadd (bvmul .cse2 (_ bv8 32)) (bvmul .cse0 (_ bv8 32))) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)) (bvmul (_ bv8 32) .cse3) (bvneg (bvmul (bvmul .cse3 (_ bv4 32)) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)) (bvmul (_ bv4 32) (bvmul .cse2 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|))))) (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5|)) (bvugt |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ bv2 32))))) is different from true [2021-11-19 04:25:46,564 WARN L860 $PredicateComparison]: unable to prove that (or (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32))) (forall ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ BitVec 32))) (or (= (let ((.cse1 (bvadd |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ bv4294967294 32)))) (let ((.cse0 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|))) (.cse3 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)) (.cse2 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| .cse1))) (bvadd (bvmul (_ bv4 32) (bvmul .cse0 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)) (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| .cse1) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)) (bvneg (bvmul (bvadd (bvmul .cse2 (_ bv8 32)) (bvmul .cse0 (_ bv8 32))) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)) (bvmul (_ bv8 32) .cse3) (bvneg (bvmul (bvmul .cse3 (_ bv4 32)) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)) (bvmul (_ bv4 32) (bvmul .cse2 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|))))) (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5|)) (bvugt |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ bv2 32)))) (= c_assume_abort_if_not_~cond (_ bv0 32))) is different from true [2021-11-19 04:26:08,859 WARN L860 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~a~0#1| (_ BitVec 32))) (or (not (bvule |ULTIMATE.start_main_~a~0#1| (_ bv50 32))) (not (bvugt |ULTIMATE.start_main_~a~0#1| (_ bv2 32))) (= (let ((.cse2 (bvadd |ULTIMATE.start_main_~a~0#1| (_ bv4294967294 32)))) (let ((.cse1 (bvneg (bvudiv |c_ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~a~0#1|))) (.cse3 (bvurem |c_ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~a~0#1|)) (.cse0 (bvudiv |c_ULTIMATE.start_main_~n~0#1| .cse2))) (bvadd (bvneg (bvmul (bvadd (bvmul .cse0 (_ bv8 32)) (bvmul .cse1 (_ bv8 32))) |ULTIMATE.start_main_~a~0#1|)) (bvmul (_ bv4 32) (bvmul (bvurem |c_ULTIMATE.start_main_~n~0#1| .cse2) |ULTIMATE.start_main_~a~0#1|)) (bvmul (_ bv8 32) .cse3) (bvmul (_ bv4 32) (bvmul .cse1 |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|)) (bvneg (bvmul (bvmul .cse3 (_ bv4 32)) |ULTIMATE.start_main_~a~0#1|)) (bvmul (_ bv4 32) (bvmul .cse0 |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|))))) (bvmul (_ bv8 32) |c_ULTIMATE.start_main_~n~0#1|)))) is different from true [2021-11-19 04:30:15,860 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_7| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| (_ BitVec 32))) (or (exists ((|ULTIMATE.start_main_~a~0#1| (_ BitVec 32))) (and (not (= (let ((.cse0 (bvadd |ULTIMATE.start_main_~a~0#1| (_ bv4294967294 32)))) (let ((.cse1 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_7| |ULTIMATE.start_main_~a~0#1|))) (.cse3 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_7| |ULTIMATE.start_main_~a~0#1|)) (.cse2 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_7| .cse0))) (bvadd (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_7| .cse0) |ULTIMATE.start_main_~a~0#1|)) (bvmul (_ bv4 32) (bvmul .cse1 |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|)) (bvneg (bvmul (bvadd (bvmul .cse2 (_ bv8 32)) (bvmul .cse1 (_ bv8 32))) |ULTIMATE.start_main_~a~0#1|)) (bvneg (bvmul (bvmul .cse3 (_ bv4 32)) |ULTIMATE.start_main_~a~0#1|)) (bvmul (_ bv8 32) .cse3) (bvmul (_ bv4 32) (bvmul .cse2 |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|))))) (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_7|))) (bvugt |ULTIMATE.start_main_~a~0#1| (_ bv2 32)) (bvule |ULTIMATE.start_main_~a~0#1| (_ bv50 32)))) (= (let ((.cse6 (bvadd |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| (_ bv4294967294 32)))) (let ((.cse4 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_7| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5|)) (.cse5 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_7| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5|))) (.cse7 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_7| .cse6))) (bvadd (bvmul (_ bv8 32) .cse4) (bvmul (_ bv4 32) (bvmul .cse5 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5|)) (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_7| .cse6) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5|)) (bvneg (bvmul (bvmul .cse4 (_ bv4 32)) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5|)) (bvmul (_ bv4 32) (bvmul .cse7 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5|)) (bvneg (bvmul (bvadd (bvmul .cse5 (_ bv8 32)) (bvmul .cse7 (_ bv8 32))) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5|))))) (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_7|)) (not (bvugt |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| (_ bv2 32))) (let ((.cse8 (bvule |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| (_ bv50 32)))) (and (or (not .cse8) (not (= |c_assume_abort_if_not_#in~cond| (_ bv1 32)))) (or .cse8 (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32)))))))) is different from false [2021-11-19 04:30:17,907 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_7| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| (_ BitVec 32))) (or (exists ((|ULTIMATE.start_main_~a~0#1| (_ BitVec 32))) (and (not (= (let ((.cse0 (bvadd |ULTIMATE.start_main_~a~0#1| (_ bv4294967294 32)))) (let ((.cse1 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_7| |ULTIMATE.start_main_~a~0#1|))) (.cse3 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_7| |ULTIMATE.start_main_~a~0#1|)) (.cse2 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_7| .cse0))) (bvadd (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_7| .cse0) |ULTIMATE.start_main_~a~0#1|)) (bvmul (_ bv4 32) (bvmul .cse1 |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|)) (bvneg (bvmul (bvadd (bvmul .cse2 (_ bv8 32)) (bvmul .cse1 (_ bv8 32))) |ULTIMATE.start_main_~a~0#1|)) (bvneg (bvmul (bvmul .cse3 (_ bv4 32)) |ULTIMATE.start_main_~a~0#1|)) (bvmul (_ bv8 32) .cse3) (bvmul (_ bv4 32) (bvmul .cse2 |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|))))) (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_7|))) (bvugt |ULTIMATE.start_main_~a~0#1| (_ bv2 32)) (bvule |ULTIMATE.start_main_~a~0#1| (_ bv50 32)))) (= (let ((.cse6 (bvadd |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| (_ bv4294967294 32)))) (let ((.cse4 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_7| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5|)) (.cse5 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_7| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5|))) (.cse7 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_7| .cse6))) (bvadd (bvmul (_ bv8 32) .cse4) (bvmul (_ bv4 32) (bvmul .cse5 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5|)) (bvmul (_ bv4 32) (bvmul (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_7| .cse6) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5|)) (bvneg (bvmul (bvmul .cse4 (_ bv4 32)) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5|)) (bvmul (_ bv4 32) (bvmul .cse7 |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5|)) (bvneg (bvmul (bvadd (bvmul .cse5 (_ bv8 32)) (bvmul .cse7 (_ bv8 32))) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5|))))) (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_7|)) (not (bvugt |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| (_ bv2 32))) (let ((.cse8 (bvule |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_5| (_ bv50 32)))) (and (or (not .cse8) (not (= |c_assume_abort_if_not_#in~cond| (_ bv1 32)))) (or .cse8 (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32)))))))) is different from true