./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/bhmr2007.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa6476a6-7203-4a33-8732-1cf868c9ba09/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa6476a6-7203-4a33-8732-1cf868c9ba09/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_fa6476a6-7203-4a33-8732-1cf868c9ba09/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa6476a6-7203-4a33-8732-1cf868c9ba09/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-lit/bhmr2007.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa6476a6-7203-4a33-8732-1cf868c9ba09/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa6476a6-7203-4a33-8732-1cf868c9ba09/bin/ukojak-LBtLqBUTdQ --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 07cb9038cdaf0e413365ff784390031a7ba733892c02a00ed18b47b0bbaf3c4d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:47:59,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:47:59,520 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:47:59,554 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:47:59,555 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:47:59,556 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:47:59,558 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:47:59,561 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:47:59,563 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:47:59,564 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:47:59,565 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:47:59,567 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:47:59,567 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:47:59,569 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:47:59,570 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:47:59,572 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:47:59,573 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:47:59,574 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:47:59,577 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:47:59,579 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:47:59,581 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:47:59,583 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:47:59,585 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:47:59,586 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:47:59,590 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:47:59,590 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:47:59,591 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:47:59,592 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:47:59,592 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:47:59,594 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:47:59,594 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:47:59,595 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:47:59,603 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:47:59,604 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:47:59,606 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:47:59,606 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:47:59,607 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:47:59,607 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:47:59,608 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:47:59,609 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:47:59,610 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:47:59,612 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa6476a6-7203-4a33-8732-1cf868c9ba09/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:47:59,655 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:47:59,655 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:47:59,656 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:47:59,656 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:47:59,657 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:47:59,657 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:47:59,658 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:47:59,658 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:47:59,658 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:47:59,658 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:47:59,659 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:47:59,665 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:47:59,666 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:47:59,666 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:47:59,666 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:47:59,666 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:47:59,666 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:47:59,667 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:47:59,667 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:47:59,667 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:47:59,667 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:47:59,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:47:59,668 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:47:59,668 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:47:59,668 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:47:59,668 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:47:59,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:47:59,669 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:47:59,669 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_fa6476a6-7203-4a33-8732-1cf868c9ba09/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa6476a6-7203-4a33-8732-1cf868c9ba09/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 07cb9038cdaf0e413365ff784390031a7ba733892c02a00ed18b47b0bbaf3c4d [2021-11-23 01:47:59,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:47:59,942 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:47:59,945 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:47:59,946 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:47:59,947 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:47:59,949 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa6476a6-7203-4a33-8732-1cf868c9ba09/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/loop-lit/bhmr2007.i [2021-11-23 01:48:00,014 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa6476a6-7203-4a33-8732-1cf868c9ba09/bin/ukojak-LBtLqBUTdQ/data/99779c2c6/ab75f2718c364bb783eab47eaf24b5e3/FLAG449c22d99 [2021-11-23 01:48:00,604 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:48:00,605 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa6476a6-7203-4a33-8732-1cf868c9ba09/sv-benchmarks/c/loop-lit/bhmr2007.i [2021-11-23 01:48:00,618 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa6476a6-7203-4a33-8732-1cf868c9ba09/bin/ukojak-LBtLqBUTdQ/data/99779c2c6/ab75f2718c364bb783eab47eaf24b5e3/FLAG449c22d99 [2021-11-23 01:48:00,943 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa6476a6-7203-4a33-8732-1cf868c9ba09/bin/ukojak-LBtLqBUTdQ/data/99779c2c6/ab75f2718c364bb783eab47eaf24b5e3 [2021-11-23 01:48:00,946 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:48:00,948 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:48:00,949 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:48:00,950 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:48:00,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:48:00,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:48:00" (1/1) ... [2021-11-23 01:48:00,958 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1250f905 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:00, skipping insertion in model container [2021-11-23 01:48:00,958 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:48:00" (1/1) ... [2021-11-23 01:48:00,969 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:48:00,986 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:48:01,179 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_fa6476a6-7203-4a33-8732-1cf868c9ba09/sv-benchmarks/c/loop-lit/bhmr2007.i[895,908] [2021-11-23 01:48:01,190 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:48:01,198 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:48:01,211 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_fa6476a6-7203-4a33-8732-1cf868c9ba09/sv-benchmarks/c/loop-lit/bhmr2007.i[895,908] [2021-11-23 01:48:01,215 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:48:01,228 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:48:01,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:01 WrapperNode [2021-11-23 01:48:01,228 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:48:01,229 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:48:01,230 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:48:01,230 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:48:01,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:01" (1/1) ... [2021-11-23 01:48:01,242 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:01" (1/1) ... [2021-11-23 01:48:01,263 INFO L137 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 44 [2021-11-23 01:48:01,264 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:48:01,264 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:48:01,265 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:48:01,265 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:48:01,273 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:01" (1/1) ... [2021-11-23 01:48:01,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:01" (1/1) ... [2021-11-23 01:48:01,276 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:01" (1/1) ... [2021-11-23 01:48:01,276 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:01" (1/1) ... [2021-11-23 01:48:01,289 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:01" (1/1) ... [2021-11-23 01:48:01,293 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:01" (1/1) ... [2021-11-23 01:48:01,294 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:01" (1/1) ... [2021-11-23 01:48:01,301 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:48:01,302 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:48:01,302 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:48:01,302 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:48:01,306 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:48:01" (1/1) ... [2021-11-23 01:48:01,314 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:48:01,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa6476a6-7203-4a33-8732-1cf868c9ba09/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:48:01,341 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa6476a6-7203-4a33-8732-1cf868c9ba09/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:48:01,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa6476a6-7203-4a33-8732-1cf868c9ba09/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:48:01,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:48:01,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:48:01,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:48:01,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:48:01,445 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:48:01,448 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:48:01,603 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:48:01,640 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:48:01,640 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 01:48:01,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:48:01 BoogieIcfgContainer [2021-11-23 01:48:01,643 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:48:01,644 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:48:01,644 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:48:01,654 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:48:01,654 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:48:01" (1/1) ... [2021-11-23 01:48:01,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:48:01,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:48:01,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2021-11-23 01:48:01,720 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2021-11-23 01:48:01,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 01:48:01,722 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:48:01,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:48:01,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:48:02,011 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 01:48:02,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:48:02,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 11 states and 14 transitions. [2021-11-23 01:48:02,128 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2021-11-23 01:48:02,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 01:48:02,131 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:48:02,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:48:02,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:48:02,286 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 01:48:02,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:48:02,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2021-11-23 01:48:02,399 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2021-11-23 01:48:02,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 01:48:02,400 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:48:02,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:48:02,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:48:02,498 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:48:02,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:48:02,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 8 states and 11 transitions. [2021-11-23 01:48:02,723 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 11 transitions. [2021-11-23 01:48:02,723 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 01:48:02,723 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2021-11-23 01:48:02,732 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-11-23 01:48:02,763 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-23 01:48:02,767 INFO L560 CodeCheckObserver]: Invariant with dag size 14 [2021-11-23 01:48:02,774 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-23 01:48:02,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 01:48:02 ImpRootNode [2021-11-23 01:48:02,775 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 01:48:02,776 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 01:48:02,776 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 01:48:02,776 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 01:48:02,777 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:48:01" (3/4) ... [2021-11-23 01:48:02,780 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 01:48:02,789 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-11-23 01:48:02,789 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-11-23 01:48:02,790 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-23 01:48:02,790 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 01:48:02,827 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa6476a6-7203-4a33-8732-1cf868c9ba09/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 01:48:02,827 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 01:48:02,828 INFO L158 Benchmark]: Toolchain (without parser) took 1879.58ms. Allocated memory was 123.7MB in the beginning and 155.2MB in the end (delta: 31.5MB). Free memory was 95.7MB in the beginning and 118.8MB in the end (delta: -23.1MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. [2021-11-23 01:48:02,828 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 123.7MB. Free memory is still 79.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:48:02,829 INFO L158 Benchmark]: CACSL2BoogieTranslator took 279.34ms. Allocated memory is still 123.7MB. Free memory was 95.4MB in the beginning and 97.5MB in the end (delta: -2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 01:48:02,830 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.30ms. Allocated memory is still 123.7MB. Free memory was 97.5MB in the beginning and 96.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:48:02,830 INFO L158 Benchmark]: Boogie Preprocessor took 36.99ms. Allocated memory is still 123.7MB. Free memory was 96.0MB in the beginning and 95.0MB in the end (delta: 985.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:48:02,831 INFO L158 Benchmark]: RCFGBuilder took 340.79ms. Allocated memory is still 123.7MB. Free memory was 95.0MB in the beginning and 85.3MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 01:48:02,831 INFO L158 Benchmark]: CodeCheck took 1131.35ms. Allocated memory was 123.7MB in the beginning and 155.2MB in the end (delta: 31.5MB). Free memory was 85.3MB in the beginning and 120.8MB in the end (delta: -35.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:48:02,832 INFO L158 Benchmark]: Witness Printer took 51.47ms. Allocated memory is still 155.2MB. Free memory was 120.8MB in the beginning and 118.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:48:02,834 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, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 4, 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, 23 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 66 IncrementalHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 15 mSDtfsCounter, 66 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 150 GetRequests, 129 SyntacticMatches, 5 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 143 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/4 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: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: (a + b < 3 * n + 1 && 3 * i <= a + b) && a + b <= 3 * i - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 123.7MB. Free memory is still 79.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 279.34ms. Allocated memory is still 123.7MB. Free memory was 95.4MB in the beginning and 97.5MB in the end (delta: -2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.30ms. Allocated memory is still 123.7MB. Free memory was 97.5MB in the beginning and 96.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.99ms. Allocated memory is still 123.7MB. Free memory was 96.0MB in the beginning and 95.0MB in the end (delta: 985.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 340.79ms. Allocated memory is still 123.7MB. Free memory was 95.0MB in the beginning and 85.3MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 1131.35ms. Allocated memory was 123.7MB in the beginning and 155.2MB in the end (delta: 31.5MB). Free memory was 85.3MB in the beginning and 120.8MB in the end (delta: -35.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 51.47ms. Allocated memory is still 155.2MB. Free memory was 120.8MB in the beginning and 118.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-23 01:48:02,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa6476a6-7203-4a33-8732-1cf868c9ba09/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