./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 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ff955e2-9503-47eb-9d6e-4622a4cd8c1e/bin/ukojak-2xVlg8857e/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ff955e2-9503-47eb-9d6e-4622a4cd8c1e/bin/ukojak-2xVlg8857e/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ff955e2-9503-47eb-9d6e-4622a4cd8c1e/bin/ukojak-2xVlg8857e/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ff955e2-9503-47eb-9d6e-4622a4cd8c1e/bin/ukojak-2xVlg8857e/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark52_polynomial.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ff955e2-9503-47eb-9d6e-4622a4cd8c1e/bin/ukojak-2xVlg8857e/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ff955e2-9503-47eb-9d6e-4622a4cd8c1e/bin/ukojak-2xVlg8857e --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-63182f1 [2021-11-13 23:43:03,544 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 23:43:03,547 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 23:43:03,608 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 23:43:03,608 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 23:43:03,613 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 23:43:03,615 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 23:43:03,618 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 23:43:03,621 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 23:43:03,627 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 23:43:03,628 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 23:43:03,630 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 23:43:03,630 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 23:43:03,633 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 23:43:03,635 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 23:43:03,641 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 23:43:03,643 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 23:43:03,644 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 23:43:03,646 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 23:43:03,656 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 23:43:03,657 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 23:43:03,659 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 23:43:03,662 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 23:43:03,663 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 23:43:03,672 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 23:43:03,673 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 23:43:03,673 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 23:43:03,675 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 23:43:03,676 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 23:43:03,677 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 23:43:03,677 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 23:43:03,678 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 23:43:03,680 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 23:43:03,682 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 23:43:03,683 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 23:43:03,683 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 23:43:03,684 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 23:43:03,684 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 23:43:03,685 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 23:43:03,685 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 23:43:03,686 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 23:43:03,687 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ff955e2-9503-47eb-9d6e-4622a4cd8c1e/bin/ukojak-2xVlg8857e/config/svcomp-Overflow-32bit-Kojak_Default.epf [2021-11-13 23:43:03,729 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 23:43:03,729 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 23:43:03,731 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 23:43:03,732 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-13 23:43:03,732 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 23:43:03,732 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 23:43:03,733 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 23:43:03,733 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 23:43:03,739 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 23:43:03,740 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 23:43:03,741 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 23:43:03,741 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 23:43:03,741 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 23:43:03,741 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 23:43:03,741 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 23:43:03,742 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-13 23:43:03,742 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 23:43:03,742 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 23:43:03,742 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 23:43:03,742 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 23:43:03,742 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-13 23:43:03,743 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-13 23:43:03,743 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 23:43:03,743 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-13 23:43:03,743 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 23:43:03,743 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 23:43:03,744 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 23:43:03,744 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-13 23:43:03,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 23:43:03,745 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 23:43:03,746 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_9ff955e2-9503-47eb-9d6e-4622a4cd8c1e/bin/ukojak-2xVlg8857e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ff955e2-9503-47eb-9d6e-4622a4cd8c1e/bin/ukojak-2xVlg8857e Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30423d130febadd361f3e4a853592861e7b12a17e365ee39eab7e3a86989589e [2021-11-13 23:43:04,050 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 23:43:04,075 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 23:43:04,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 23:43:04,119 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 23:43:04,120 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 23:43:04,121 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ff955e2-9503-47eb-9d6e-4622a4cd8c1e/bin/ukojak-2xVlg8857e/../../sv-benchmarks/c/loop-zilu/benchmark52_polynomial.i [2021-11-13 23:43:04,214 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ff955e2-9503-47eb-9d6e-4622a4cd8c1e/bin/ukojak-2xVlg8857e/data/a747bdf23/6e1aa0a3b8464b0fafa227def6648c7c/FLAG53cdcf752 [2021-11-13 23:43:04,707 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 23:43:04,707 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ff955e2-9503-47eb-9d6e-4622a4cd8c1e/sv-benchmarks/c/loop-zilu/benchmark52_polynomial.i [2021-11-13 23:43:04,719 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ff955e2-9503-47eb-9d6e-4622a4cd8c1e/bin/ukojak-2xVlg8857e/data/a747bdf23/6e1aa0a3b8464b0fafa227def6648c7c/FLAG53cdcf752 [2021-11-13 23:43:05,070 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ff955e2-9503-47eb-9d6e-4622a4cd8c1e/bin/ukojak-2xVlg8857e/data/a747bdf23/6e1aa0a3b8464b0fafa227def6648c7c [2021-11-13 23:43:05,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 23:43:05,074 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 23:43:05,076 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 23:43:05,076 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 23:43:05,079 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 23:43:05,080 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:43:05" (1/1) ... [2021-11-13 23:43:05,081 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c104c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:43:05, skipping insertion in model container [2021-11-13 23:43:05,082 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:43:05" (1/1) ... [2021-11-13 23:43:05,089 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 23:43:05,102 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 23:43:05,239 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ff955e2-9503-47eb-9d6e-4622a4cd8c1e/sv-benchmarks/c/loop-zilu/benchmark52_polynomial.i[872,885] [2021-11-13 23:43:05,248 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 23:43:05,256 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 23:43:05,269 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ff955e2-9503-47eb-9d6e-4622a4cd8c1e/sv-benchmarks/c/loop-zilu/benchmark52_polynomial.i[872,885] [2021-11-13 23:43:05,271 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 23:43:05,285 INFO L208 MainTranslator]: Completed translation [2021-11-13 23:43:05,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:43:05 WrapperNode [2021-11-13 23:43:05,286 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 23:43:05,287 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 23:43:05,287 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 23:43:05,287 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 23:43:05,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:43:05" (1/1) ... [2021-11-13 23:43:05,305 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:43:05" (1/1) ... [2021-11-13 23:43:05,327 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 23:43:05,328 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 23:43:05,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 23:43:05,328 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 23:43:05,338 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:43:05" (1/1) ... [2021-11-13 23:43:05,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:43:05" (1/1) ... [2021-11-13 23:43:05,344 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:43:05" (1/1) ... [2021-11-13 23:43:05,344 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:43:05" (1/1) ... [2021-11-13 23:43:05,347 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:43:05" (1/1) ... [2021-11-13 23:43:05,350 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:43:05" (1/1) ... [2021-11-13 23:43:05,351 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:43:05" (1/1) ... [2021-11-13 23:43:05,353 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 23:43:05,353 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 23:43:05,354 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 23:43:05,354 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 23:43:05,355 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:43:05" (1/1) ... [2021-11-13 23:43:05,368 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-13 23:43:05,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ff955e2-9503-47eb-9d6e-4622a4cd8c1e/bin/ukojak-2xVlg8857e/z3 [2021-11-13 23:43:05,392 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ff955e2-9503-47eb-9d6e-4622a4cd8c1e/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-13 23:43:05,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ff955e2-9503-47eb-9d6e-4622a4cd8c1e/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-13 23:43:05,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 23:43:05,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 23:43:05,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 23:43:05,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 23:43:05,647 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 23:43:05,647 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 23:43:05,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:43:05 BoogieIcfgContainer [2021-11-13 23:43:05,650 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 23:43:05,651 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-13 23:43:05,651 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-13 23:43:05,668 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-13 23:43:05,673 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:43:05" (1/1) ... [2021-11-13 23:43:05,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:43:05,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:43:05,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2021-11-13 23:43:05,778 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2021-11-13 23:43:05,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-13 23:43:05,782 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:43:05,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:43:05,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:43:05,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 23:43:05,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 23:43:05,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:43:06,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:43:06,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2021-11-13 23:43:06,042 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2021-11-13 23:43:06,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-13 23:43:06,042 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:43:06,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:43:06,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:43:06,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-13 23:43:06,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 23:43:06,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:43:06,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:43:06,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2021-11-13 23:43:06,080 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2021-11-13 23:43:06,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-13 23:43:06,080 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:43:06,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:43:06,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:43:06,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 23:43:06,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 23:43:06,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:43:06,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:43:06,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2021-11-13 23:43:06,175 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2021-11-13 23:43:06,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-13 23:43:06,175 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:43:06,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:43:06,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:43:06,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 23:43:06,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 23:43:06,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:43:06,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:43:06,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 14 states and 17 transitions. [2021-11-13 23:43:06,354 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2021-11-13 23:43:06,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-13 23:43:06,355 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:43:06,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:43:06,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:43:06,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 23:43:06,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 23:43:06,518 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:43:06,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:43:06,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2021-11-13 23:43:06,720 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2021-11-13 23:43:06,720 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 23:43:06,720 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2021-11-13 23:43:06,733 INFO L754 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2021-11-13 23:43:06,773 INFO L560 CodeCheckObserver]: Invariant with dag size 12 [2021-11-13 23:43:06,785 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-13 23:43:06,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 11:43:06 ImpRootNode [2021-11-13 23:43:06,786 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-13 23:43:06,788 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 23:43:06,789 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 23:43:06,789 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 23:43:06,789 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:43:05" (3/4) ... [2021-11-13 23:43:06,792 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-13 23:43:06,801 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-11-13 23:43:06,801 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-13 23:43:06,801 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-13 23:43:06,801 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-13 23:43:06,839 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ff955e2-9503-47eb-9d6e-4622a4cd8c1e/bin/ukojak-2xVlg8857e/witness.graphml [2021-11-13 23:43:06,839 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 23:43:06,840 INFO L158 Benchmark]: Toolchain (without parser) took 1765.31ms. Allocated memory is still 111.1MB. Free memory was 74.4MB in the beginning and 42.6MB in the end (delta: 31.7MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. [2021-11-13 23:43:06,840 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 111.1MB. Free memory is still 91.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 23:43:06,841 INFO L158 Benchmark]: CACSL2BoogieTranslator took 210.59ms. Allocated memory is still 111.1MB. Free memory was 74.1MB in the beginning and 64.6MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 23:43:06,841 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.47ms. Allocated memory is still 111.1MB. Free memory was 64.6MB in the beginning and 63.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 23:43:06,842 INFO L158 Benchmark]: Boogie Preprocessor took 24.63ms. Allocated memory is still 111.1MB. Free memory was 63.2MB in the beginning and 62.2MB in the end (delta: 967.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 23:43:06,842 INFO L158 Benchmark]: RCFGBuilder took 296.35ms. Allocated memory is still 111.1MB. Free memory was 62.2MB in the beginning and 84.2MB in the end (delta: -22.0MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2021-11-13 23:43:06,843 INFO L158 Benchmark]: CodeCheck took 1135.96ms. Allocated memory is still 111.1MB. Free memory was 84.2MB in the beginning and 45.1MB in the end (delta: 39.0MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2021-11-13 23:43:06,844 INFO L158 Benchmark]: Witness Printer took 50.39ms. Allocated memory is still 111.1MB. Free memory was 44.7MB in the beginning and 42.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 23:43:06,847 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: 1.0s, 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, 316.96ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 37 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 234.58ms 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, 6.82ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 220 GetRequests, 199 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 111 SizeOfPredicates, 0 NumberOfNonLiveVariables, 165 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 0.15ms. Allocated memory is still 111.1MB. Free memory is still 91.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 210.59ms. Allocated memory is still 111.1MB. Free memory was 74.1MB in the beginning and 64.6MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.47ms. Allocated memory is still 111.1MB. Free memory was 64.6MB in the beginning and 63.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.63ms. Allocated memory is still 111.1MB. Free memory was 63.2MB in the beginning and 62.2MB in the end (delta: 967.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 296.35ms. Allocated memory is still 111.1MB. Free memory was 62.2MB in the beginning and 84.2MB in the end (delta: -22.0MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. * CodeCheck took 1135.96ms. Allocated memory is still 111.1MB. Free memory was 84.2MB in the beginning and 45.1MB in the end (delta: 39.0MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Witness Printer took 50.39ms. Allocated memory is still 111.1MB. Free memory was 44.7MB in the beginning and 42.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-13 23:43:06,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ff955e2-9503-47eb-9d6e-4622a4cd8c1e/bin/ukojak-2xVlg8857e/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