./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/gj2007b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b2a8fe-ec16-4d28-906d-afc4715e067b/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b2a8fe-ec16-4d28-906d-afc4715e067b/bin/ukojak-Rh5K9KB4LI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b2a8fe-ec16-4d28-906d-afc4715e067b/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b2a8fe-ec16-4d28-906d-afc4715e067b/bin/ukojak-Rh5K9KB4LI/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-lit/gj2007b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b2a8fe-ec16-4d28-906d-afc4715e067b/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b2a8fe-ec16-4d28-906d-afc4715e067b/bin/ukojak-Rh5K9KB4LI --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 a5dbdf40c5c8abdf745ea2973f48a7f1bd1d56b53cd410b7a2d364d83fc651a9 ............................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 03:27:36,897 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 03:27:36,900 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 03:27:36,967 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 03:27:36,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 03:27:36,972 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 03:27:36,974 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 03:27:36,976 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 03:27:36,978 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 03:27:36,980 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 03:27:36,981 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 03:27:36,982 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 03:27:36,983 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 03:27:36,984 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 03:27:36,998 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 03:27:37,000 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 03:27:37,002 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 03:27:37,004 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 03:27:37,006 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 03:27:37,012 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 03:27:37,017 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 03:27:37,018 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 03:27:37,021 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 03:27:37,023 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 03:27:37,028 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 03:27:37,031 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 03:27:37,032 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 03:27:37,034 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 03:27:37,035 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 03:27:37,037 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 03:27:37,037 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 03:27:37,038 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 03:27:37,040 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 03:27:37,042 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 03:27:37,043 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 03:27:37,044 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 03:27:37,044 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 03:27:37,045 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 03:27:37,045 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 03:27:37,046 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 03:27:37,047 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 03:27:37,048 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b2a8fe-ec16-4d28-906d-afc4715e067b/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-10-29 03:27:37,094 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 03:27:37,094 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 03:27:37,096 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 03:27:37,097 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-29 03:27:37,098 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 03:27:37,098 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 03:27:37,098 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 03:27:37,098 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 03:27:37,099 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 03:27:37,099 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 03:27:37,100 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 03:27:37,100 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 03:27:37,100 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 03:27:37,101 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 03:27:37,101 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 03:27:37,101 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 03:27:37,101 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 03:27:37,101 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 03:27:37,102 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 03:27:37,102 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 03:27:37,102 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 03:27:37,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:27:37,103 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 03:27:37,103 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 03:27:37,103 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 03:27:37,103 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 03:27:37,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 03:27:37,104 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 03:27:37,104 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_d3b2a8fe-ec16-4d28-906d-afc4715e067b/bin/ukojak-Rh5K9KB4LI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b2a8fe-ec16-4d28-906d-afc4715e067b/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5dbdf40c5c8abdf745ea2973f48a7f1bd1d56b53cd410b7a2d364d83fc651a9 [2021-10-29 03:27:37,363 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 03:27:37,401 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 03:27:37,403 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 03:27:37,404 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 03:27:37,405 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 03:27:37,405 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b2a8fe-ec16-4d28-906d-afc4715e067b/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/loop-lit/gj2007b.i [2021-10-29 03:27:37,479 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b2a8fe-ec16-4d28-906d-afc4715e067b/bin/ukojak-Rh5K9KB4LI/data/63c192275/a88363baa9c747e99ef23a1e7ccb3d4e/FLAG8833e71ee [2021-10-29 03:27:37,987 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 03:27:37,987 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b2a8fe-ec16-4d28-906d-afc4715e067b/sv-benchmarks/c/loop-lit/gj2007b.i [2021-10-29 03:27:37,994 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b2a8fe-ec16-4d28-906d-afc4715e067b/bin/ukojak-Rh5K9KB4LI/data/63c192275/a88363baa9c747e99ef23a1e7ccb3d4e/FLAG8833e71ee [2021-10-29 03:27:38,335 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b2a8fe-ec16-4d28-906d-afc4715e067b/bin/ukojak-Rh5K9KB4LI/data/63c192275/a88363baa9c747e99ef23a1e7ccb3d4e [2021-10-29 03:27:38,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 03:27:38,339 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 03:27:38,354 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 03:27:38,355 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 03:27:38,358 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 03:27:38,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:27:38" (1/1) ... [2021-10-29 03:27:38,360 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dc3302a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:27:38, skipping insertion in model container [2021-10-29 03:27:38,360 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:27:38" (1/1) ... [2021-10-29 03:27:38,367 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 03:27:38,380 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 03:27:38,504 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_d3b2a8fe-ec16-4d28-906d-afc4715e067b/sv-benchmarks/c/loop-lit/gj2007b.i[895,908] [2021-10-29 03:27:38,514 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:27:38,522 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 03:27:38,534 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_d3b2a8fe-ec16-4d28-906d-afc4715e067b/sv-benchmarks/c/loop-lit/gj2007b.i[895,908] [2021-10-29 03:27:38,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:27:38,551 INFO L208 MainTranslator]: Completed translation [2021-10-29 03:27:38,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:27:38 WrapperNode [2021-10-29 03:27:38,551 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 03:27:38,553 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 03:27:38,553 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 03:27:38,553 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 03:27:38,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:27:38" (1/1) ... [2021-10-29 03:27:38,567 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:27:38" (1/1) ... [2021-10-29 03:27:38,584 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 03:27:38,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 03:27:38,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 03:27:38,586 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 03:27:38,594 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:27:38" (1/1) ... [2021-10-29 03:27:38,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:27:38" (1/1) ... [2021-10-29 03:27:38,595 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:27:38" (1/1) ... [2021-10-29 03:27:38,595 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:27:38" (1/1) ... [2021-10-29 03:27:38,598 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:27:38" (1/1) ... [2021-10-29 03:27:38,602 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:27:38" (1/1) ... [2021-10-29 03:27:38,603 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:27:38" (1/1) ... [2021-10-29 03:27:38,604 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 03:27:38,605 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 03:27:38,606 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 03:27:38,606 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 03:27:38,607 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:27:38" (1/1) ... [2021-10-29 03:27:38,614 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:27:38,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b2a8fe-ec16-4d28-906d-afc4715e067b/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 03:27:38,637 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b2a8fe-ec16-4d28-906d-afc4715e067b/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 03:27:38,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b2a8fe-ec16-4d28-906d-afc4715e067b/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 03:27:38,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 03:27:38,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 03:27:38,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 03:27:38,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 03:27:38,676 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-10-29 03:27:38,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-10-29 03:27:38,922 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 03:27:38,922 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-29 03:27:38,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:27:38 BoogieIcfgContainer [2021-10-29 03:27:38,925 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 03:27:38,926 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 03:27:38,926 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 03:27:38,943 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 03:27:38,943 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:27:38" (1/1) ... [2021-10-29 03:27:38,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 03:27:38,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:27:39,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2021-10-29 03:27:39,005 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2021-10-29 03:27:39,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 03:27:39,009 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:27:39,010 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:27:39,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:27:39,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:27:39,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:27:39,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 16 states and 20 transitions. [2021-10-29 03:27:39,327 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2021-10-29 03:27:39,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 03:27:39,327 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:27:39,328 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:27:39,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:27:39,405 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:27:39,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:27:39,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 17 states and 23 transitions. [2021-10-29 03:27:39,488 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 23 transitions. [2021-10-29 03:27:39,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 03:27:39,490 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:27:39,490 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:27:39,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:27:39,611 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:27:39,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:27:39,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 18 states and 28 transitions. [2021-10-29 03:27:39,757 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 28 transitions. [2021-10-29 03:27:39,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 03:27:39,759 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:27:39,759 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:27:39,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:27:39,938 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:27:40,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:27:40,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 16 states and 20 transitions. [2021-10-29 03:27:40,157 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2021-10-29 03:27:40,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 03:27:40,158 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:27:40,159 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:27:40,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:27:40,259 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:27:40,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:27:40,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 18 states and 26 transitions. [2021-10-29 03:27:40,364 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 26 transitions. [2021-10-29 03:27:40,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 03:27:40,364 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:27:40,365 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:27:40,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:27:40,439 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:27:40,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:27:40,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 20 states and 30 transitions. [2021-10-29 03:27:40,607 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 30 transitions. [2021-10-29 03:27:40,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 03:27:40,609 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:27:40,610 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:27:40,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:27:40,750 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:27:41,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:27:41,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 16 states and 25 transitions. [2021-10-29 03:27:41,110 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 25 transitions. [2021-10-29 03:27:41,110 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 03:27:41,111 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2021-10-29 03:27:41,117 INFO L759 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-10-29 03:27:41,177 INFO L565 CodeCheckObserver]: Invariant with dag size 17 [2021-10-29 03:27:41,194 INFO L565 CodeCheckObserver]: Invariant with dag size 1 [2021-10-29 03:27:41,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 03:27:41 ImpRootNode [2021-10-29 03:27:41,194 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 03:27:41,196 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 03:27:41,196 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 03:27:41,196 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 03:27:41,197 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:27:38" (3/4) ... [2021-10-29 03:27:41,202 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 03:27:41,208 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-10-29 03:27:41,214 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-10-29 03:27:41,215 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-29 03:27:41,215 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-29 03:27:41,215 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 03:27:41,269 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b2a8fe-ec16-4d28-906d-afc4715e067b/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 03:27:41,269 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 03:27:41,271 INFO L168 Benchmark]: Toolchain (without parser) took 2930.24 ms. Allocated memory is still 115.3 MB. Free memory was 83.3 MB in the beginning and 62.4 MB in the end (delta: 20.9 MB). Peak memory consumption was 21.3 MB. Max. memory is 16.1 GB. [2021-10-29 03:27:41,271 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 83.9 MB. Free memory was 52.0 MB in the beginning and 51.9 MB in the end (delta: 66.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:27:41,272 INFO L168 Benchmark]: CACSL2BoogieTranslator took 197.38 ms. Allocated memory is still 115.3 MB. Free memory was 83.1 MB in the beginning and 73.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 03:27:41,273 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.97 ms. Allocated memory is still 115.3 MB. Free memory was 73.6 MB in the beginning and 72.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:27:41,273 INFO L168 Benchmark]: Boogie Preprocessor took 19.44 ms. Allocated memory is still 115.3 MB. Free memory was 72.1 MB in the beginning and 71.2 MB in the end (delta: 898.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:27:41,274 INFO L168 Benchmark]: RCFGBuilder took 319.70 ms. Allocated memory is still 115.3 MB. Free memory was 71.1 MB in the beginning and 60.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 03:27:41,274 INFO L168 Benchmark]: CodeCheck took 2268.75 ms. Allocated memory is still 115.3 MB. Free memory was 60.5 MB in the beginning and 65.1 MB in the end (delta: -4.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:27:41,276 INFO L168 Benchmark]: Witness Printer took 73.26 ms. Allocated memory is still 115.3 MB. Free memory was 65.1 MB in the beginning and 62.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:27:41,283 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 2 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 380 SDtfs, 142 SDslu, 0 SDs, 0 SdLazy, 2456 SolverSat, 966 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 627 GetRequests, 565 SyntacticMatches, 14 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 691 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 59 ConstructedInterpolants, 0 QuantifiedInterpolants, 223 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 6/20 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: 28]: Loop Invariant Derived loop invariant: ((m == 0 && 1 <= x) || (x == 0 && m == 0)) || ((2 <= x && m + 1 <= n) && 1 <= m) - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 83.9 MB. Free memory was 52.0 MB in the beginning and 51.9 MB in the end (delta: 66.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 197.38 ms. Allocated memory is still 115.3 MB. Free memory was 83.1 MB in the beginning and 73.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.97 ms. Allocated memory is still 115.3 MB. Free memory was 73.6 MB in the beginning and 72.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.44 ms. Allocated memory is still 115.3 MB. Free memory was 72.1 MB in the beginning and 71.2 MB in the end (delta: 898.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 319.70 ms. Allocated memory is still 115.3 MB. Free memory was 71.1 MB in the beginning and 60.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 2268.75 ms. Allocated memory is still 115.3 MB. Free memory was 60.5 MB in the beginning and 65.1 MB in the end (delta: -4.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 73.26 ms. Allocated memory is still 115.3 MB. Free memory was 65.1 MB in the beginning and 62.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! [2021-10-29 03:27:41,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b2a8fe-ec16-4d28-906d-afc4715e067b/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...