./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark52_polynomial.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a33c6ff-5dbe-474c-9b6e-97bdd545a772/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a33c6ff-5dbe-474c-9b6e-97bdd545a772/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a33c6ff-5dbe-474c-9b6e-97bdd545a772/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a33c6ff-5dbe-474c-9b6e-97bdd545a772/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark52_polynomial.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a33c6ff-5dbe-474c-9b6e-97bdd545a772/bin/ukojak-LBtLqBUTdQ/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a33c6ff-5dbe-474c-9b6e-97bdd545a772/bin/ukojak-LBtLqBUTdQ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 30423d130febadd361f3e4a853592861e7b12a17e365ee39eab7e3a86989589e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 00:36:38,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:36:38,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:36:38,506 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:36:38,507 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:36:38,511 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:36:38,514 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:36:38,518 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:36:38,521 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:36:38,528 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:36:38,529 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:36:38,532 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:36:38,532 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:36:38,536 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:36:38,538 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:36:38,547 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:36:38,550 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:36:38,551 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:36:38,557 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:36:38,560 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:36:38,562 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:36:38,565 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:36:38,569 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:36:38,570 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:36:38,582 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:36:38,582 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:36:38,583 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:36:38,585 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:36:38,586 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:36:38,588 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:36:38,589 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:36:38,590 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:36:38,593 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:36:38,594 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:36:38,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:36:38,597 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:36:38,598 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:36:38,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:36:38,599 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:36:38,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:36:38,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:36:38,602 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a33c6ff-5dbe-474c-9b6e-97bdd545a772/bin/ukojak-LBtLqBUTdQ/config/svcomp-Overflow-32bit-Kojak_Default.epf [2021-11-23 00:36:38,650 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:36:38,655 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:36:38,657 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 00:36:38,657 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 00:36:38,659 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:36:38,659 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:36:38,660 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:36:38,660 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 00:36:38,660 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 00:36:38,661 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:36:38,662 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 00:36:38,662 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:36:38,663 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 00:36:38,663 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:36:38,664 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 00:36:38,664 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-23 00:36:38,664 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 00:36:38,665 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 00:36:38,665 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:36:38,665 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 00:36:38,666 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 00:36:38,666 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 00:36:38,666 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:36:38,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:36:38,667 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:36:38,667 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:36:38,668 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 00:36:38,668 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 00:36:38,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:36:38,670 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 00:36:38,671 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_0a33c6ff-5dbe-474c-9b6e-97bdd545a772/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a33c6ff-5dbe-474c-9b6e-97bdd545a772/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30423d130febadd361f3e4a853592861e7b12a17e365ee39eab7e3a86989589e [2021-11-23 00:36:39,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:36:39,078 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:36:39,082 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:36:39,084 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:36:39,085 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:36:39,087 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a33c6ff-5dbe-474c-9b6e-97bdd545a772/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/loop-zilu/benchmark52_polynomial.i [2021-11-23 00:36:39,201 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a33c6ff-5dbe-474c-9b6e-97bdd545a772/bin/ukojak-LBtLqBUTdQ/data/7e8a5584f/28b697bd40824289836ddb3acf68cbd0/FLAG23e47f396 [2021-11-23 00:36:39,754 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:36:39,755 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a33c6ff-5dbe-474c-9b6e-97bdd545a772/sv-benchmarks/c/loop-zilu/benchmark52_polynomial.i [2021-11-23 00:36:39,767 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a33c6ff-5dbe-474c-9b6e-97bdd545a772/bin/ukojak-LBtLqBUTdQ/data/7e8a5584f/28b697bd40824289836ddb3acf68cbd0/FLAG23e47f396 [2021-11-23 00:36:40,132 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a33c6ff-5dbe-474c-9b6e-97bdd545a772/bin/ukojak-LBtLqBUTdQ/data/7e8a5584f/28b697bd40824289836ddb3acf68cbd0 [2021-11-23 00:36:40,135 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:36:40,137 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:36:40,139 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:36:40,139 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:36:40,143 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:36:40,144 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:36:40" (1/1) ... [2021-11-23 00:36:40,145 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48d2c079 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:36:40, skipping insertion in model container [2021-11-23 00:36:40,146 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:36:40" (1/1) ... [2021-11-23 00:36:40,154 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:36:40,170 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:36:40,359 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_0a33c6ff-5dbe-474c-9b6e-97bdd545a772/sv-benchmarks/c/loop-zilu/benchmark52_polynomial.i[872,885] [2021-11-23 00:36:40,367 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:36:40,377 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:36:40,392 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_0a33c6ff-5dbe-474c-9b6e-97bdd545a772/sv-benchmarks/c/loop-zilu/benchmark52_polynomial.i[872,885] [2021-11-23 00:36:40,396 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:36:40,412 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:36:40,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:36:40 WrapperNode [2021-11-23 00:36:40,413 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:36:40,415 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:36:40,415 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:36:40,416 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:36:40,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:36:40" (1/1) ... [2021-11-23 00:36:40,432 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:36:40" (1/1) ... [2021-11-23 00:36:40,454 INFO L137 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 30 [2021-11-23 00:36:40,455 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:36:40,456 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:36:40,456 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:36:40,456 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:36:40,466 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:36:40" (1/1) ... [2021-11-23 00:36:40,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:36:40" (1/1) ... [2021-11-23 00:36:40,468 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:36:40" (1/1) ... [2021-11-23 00:36:40,469 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:36:40" (1/1) ... [2021-11-23 00:36:40,479 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:36:40" (1/1) ... [2021-11-23 00:36:40,484 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:36:40" (1/1) ... [2021-11-23 00:36:40,486 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:36:40" (1/1) ... [2021-11-23 00:36:40,491 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:36:40,493 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:36:40,493 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:36:40,493 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:36:40,494 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:36:40" (1/1) ... [2021-11-23 00:36:40,504 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:36:40,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a33c6ff-5dbe-474c-9b6e-97bdd545a772/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 00:36:40,542 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a33c6ff-5dbe-474c-9b6e-97bdd545a772/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 00:36:40,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a33c6ff-5dbe-474c-9b6e-97bdd545a772/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 00:36:40,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 00:36:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 00:36:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:36:40,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:36:40,668 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:36:40,669 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:36:40,793 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:36:40,819 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:36:40,819 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 00:36:40,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:36:40 BoogieIcfgContainer [2021-11-23 00:36:40,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:36:40,823 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 00:36:40,823 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 00:36:40,842 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 00:36:40,843 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:36:40" (1/1) ... [2021-11-23 00:36:40,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:36:40,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:36:40,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2021-11-23 00:36:40,918 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2021-11-23 00:36:40,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-23 00:36:40,921 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:36:40,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:36:41,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:36:41,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 00:36:41,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:36:41,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:36:41,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:36:41,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2021-11-23 00:36:41,280 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2021-11-23 00:36:41,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-23 00:36:41,281 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:36:41,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:36:41,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:36:41,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-23 00:36:41,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:36:41,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:36:41,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:36:41,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2021-11-23 00:36:41,340 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2021-11-23 00:36:41,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 00:36:41,341 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:36:41,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:36:41,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:36:41,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 00:36:41,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:36:41,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:36:41,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:36:41,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2021-11-23 00:36:41,488 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2021-11-23 00:36:41,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 00:36:41,488 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:36:41,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:36:41,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:36:41,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 00:36:41,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:36:41,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:36:41,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:36:41,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 14 states and 17 transitions. [2021-11-23 00:36:41,724 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2021-11-23 00:36:41,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 00:36:41,724 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:36:41,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:36:41,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:36:41,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 00:36:41,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 00:36:41,921 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:36:42,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:36:42,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2021-11-23 00:36:42,165 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2021-11-23 00:36:42,165 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 00:36:42,166 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2021-11-23 00:36:42,181 INFO L754 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2021-11-23 00:36:42,229 INFO L560 CodeCheckObserver]: Invariant with dag size 12 [2021-11-23 00:36:42,245 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-23 00:36:42,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 12:36:42 ImpRootNode [2021-11-23 00:36:42,245 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 00:36:42,246 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 00:36:42,246 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 00:36:42,246 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 00:36:42,247 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:36:40" (3/4) ... [2021-11-23 00:36:42,255 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 00:36:42,270 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-11-23 00:36:42,270 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-23 00:36:42,270 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-23 00:36:42,271 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 00:36:42,309 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a33c6ff-5dbe-474c-9b6e-97bdd545a772/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 00:36:42,310 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 00:36:42,311 INFO L158 Benchmark]: Toolchain (without parser) took 2173.61ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 56.4MB in the beginning and 59.8MB in the end (delta: -3.4MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2021-11-23 00:36:42,312 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 94.4MB. Free memory was 72.6MB in the beginning and 72.6MB in the end (delta: 78.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:36:42,313 INFO L158 Benchmark]: CACSL2BoogieTranslator took 275.16ms. Allocated memory is still 94.4MB. Free memory was 56.1MB in the beginning and 70.8MB in the end (delta: -14.6MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2021-11-23 00:36:42,313 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.10ms. Allocated memory is still 94.4MB. Free memory was 70.8MB in the beginning and 69.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:36:42,314 INFO L158 Benchmark]: Boogie Preprocessor took 35.45ms. Allocated memory is still 94.4MB. Free memory was 69.3MB in the beginning and 68.3MB in the end (delta: 962.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:36:42,315 INFO L158 Benchmark]: RCFGBuilder took 329.59ms. Allocated memory is still 94.4MB. Free memory was 68.3MB in the beginning and 58.9MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 00:36:42,316 INFO L158 Benchmark]: CodeCheck took 1422.55ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 58.9MB in the beginning and 62.4MB in the end (delta: -3.5MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2021-11-23 00:36:42,317 INFO L158 Benchmark]: Witness Printer took 63.72ms. Allocated memory is still 113.2MB. Free memory was 62.4MB in the beginning and 59.8MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 00:36:42,321 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 14 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 86 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 37 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 148 IncrementalHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 14 mSDtfsCounter, 148 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 220 GetRequests, 199 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 111 SizeOfPredicates, 0 NumberOfNonLiveVariables, 145 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 0/1 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (i < 10 && 0 < i + 10) || (10 <= i && i < 11) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 94.4MB. Free memory was 72.6MB in the beginning and 72.6MB in the end (delta: 78.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 275.16ms. Allocated memory is still 94.4MB. Free memory was 56.1MB in the beginning and 70.8MB in the end (delta: -14.6MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.10ms. Allocated memory is still 94.4MB. Free memory was 70.8MB in the beginning and 69.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.45ms. Allocated memory is still 94.4MB. Free memory was 69.3MB in the beginning and 68.3MB in the end (delta: 962.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 329.59ms. Allocated memory is still 94.4MB. Free memory was 68.3MB in the beginning and 58.9MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 1422.55ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 58.9MB in the beginning and 62.4MB in the end (delta: -3.5MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. * Witness Printer took 63.72ms. Allocated memory is still 113.2MB. Free memory was 62.4MB in the beginning and 59.8MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-23 00:36:42,384 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a33c6ff-5dbe-474c-9b6e-97bdd545a772/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE