./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id2_b2_o3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf82820-d787-4093-9ab8-7061e90188dc/bin/ukojak-vF6T2TMglN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf82820-d787-4093-9ab8-7061e90188dc/bin/ukojak-vF6T2TMglN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf82820-d787-4093-9ab8-7061e90188dc/bin/ukojak-vF6T2TMglN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf82820-d787-4093-9ab8-7061e90188dc/bin/ukojak-vF6T2TMglN/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id2_b2_o3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf82820-d787-4093-9ab8-7061e90188dc/bin/ukojak-vF6T2TMglN/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf82820-d787-4093-9ab8-7061e90188dc/bin/ukojak-vF6T2TMglN --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 27149dc6702b40ed508ca85da6c2aa8aa33688ab27cc92cc19b394120cb70fd9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 06:36:16,479 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 06:36:16,481 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 06:36:16,510 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 06:36:16,511 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 06:36:16,512 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 06:36:16,514 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 06:36:16,517 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 06:36:16,519 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 06:36:16,520 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 06:36:16,521 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 06:36:16,523 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 06:36:16,523 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 06:36:16,525 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 06:36:16,526 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 06:36:16,528 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 06:36:16,529 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 06:36:16,531 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 06:36:16,533 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 06:36:16,536 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 06:36:16,538 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 06:36:16,539 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 06:36:16,541 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 06:36:16,542 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 06:36:16,546 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 06:36:16,546 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 06:36:16,547 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 06:36:16,548 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 06:36:16,549 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 06:36:16,550 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 06:36:16,550 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 06:36:16,552 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 06:36:16,553 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 06:36:16,554 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 06:36:16,555 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 06:36:16,555 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 06:36:16,556 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 06:36:16,557 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 06:36:16,557 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 06:36:16,558 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 06:36:16,559 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 06:36:16,560 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf82820-d787-4093-9ab8-7061e90188dc/bin/ukojak-vF6T2TMglN/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-21 06:36:16,592 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 06:36:16,592 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 06:36:16,593 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 06:36:16,593 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-21 06:36:16,594 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-21 06:36:16,597 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-21 06:36:16,598 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 06:36:16,598 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 06:36:16,598 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 06:36:16,598 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 06:36:16,599 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 06:36:16,599 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 06:36:16,600 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 06:36:16,600 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 06:36:16,600 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 06:36:16,600 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 06:36:16,600 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 06:36:16,601 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 06:36:16,601 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-21 06:36:16,601 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-21 06:36:16,601 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 06:36:16,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-21 06:36:16,602 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 06:36:16,602 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 06:36:16,602 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 06:36:16,603 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-21 06:36:16,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 06:36:16,603 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 06:36:16,603 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_cdf82820-d787-4093-9ab8-7061e90188dc/bin/ukojak-vF6T2TMglN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf82820-d787-4093-9ab8-7061e90188dc/bin/ukojak-vF6T2TMglN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27149dc6702b40ed508ca85da6c2aa8aa33688ab27cc92cc19b394120cb70fd9 [2021-11-21 06:36:16,903 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 06:36:16,923 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 06:36:16,926 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 06:36:16,927 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 06:36:16,928 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 06:36:16,930 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf82820-d787-4093-9ab8-7061e90188dc/bin/ukojak-vF6T2TMglN/../../sv-benchmarks/c/recursive-simple/id2_b2_o3.c [2021-11-21 06:36:17,024 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf82820-d787-4093-9ab8-7061e90188dc/bin/ukojak-vF6T2TMglN/data/01d8d9d68/1183e0857324463a97210882030fe736/FLAG50518ab10 [2021-11-21 06:36:17,475 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 06:36:17,476 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf82820-d787-4093-9ab8-7061e90188dc/sv-benchmarks/c/recursive-simple/id2_b2_o3.c [2021-11-21 06:36:17,489 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf82820-d787-4093-9ab8-7061e90188dc/bin/ukojak-vF6T2TMglN/data/01d8d9d68/1183e0857324463a97210882030fe736/FLAG50518ab10 [2021-11-21 06:36:17,873 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf82820-d787-4093-9ab8-7061e90188dc/bin/ukojak-vF6T2TMglN/data/01d8d9d68/1183e0857324463a97210882030fe736 [2021-11-21 06:36:17,878 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 06:36:17,879 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 06:36:17,881 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 06:36:17,881 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 06:36:17,886 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 06:36:17,886 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:36:17" (1/1) ... [2021-11-21 06:36:17,888 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63d6a267 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:17, skipping insertion in model container [2021-11-21 06:36:17,889 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:36:17" (1/1) ... [2021-11-21 06:36:17,898 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 06:36:17,914 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 06:36:18,071 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_cdf82820-d787-4093-9ab8-7061e90188dc/sv-benchmarks/c/recursive-simple/id2_b2_o3.c[771,784] [2021-11-21 06:36:18,073 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 06:36:18,082 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 06:36:18,096 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_cdf82820-d787-4093-9ab8-7061e90188dc/sv-benchmarks/c/recursive-simple/id2_b2_o3.c[771,784] [2021-11-21 06:36:18,096 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 06:36:18,107 INFO L208 MainTranslator]: Completed translation [2021-11-21 06:36:18,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:18 WrapperNode [2021-11-21 06:36:18,107 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 06:36:18,108 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 06:36:18,108 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 06:36:18,109 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 06:36:18,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:18" (1/1) ... [2021-11-21 06:36:18,119 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:18" (1/1) ... [2021-11-21 06:36:18,131 INFO L137 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2021-11-21 06:36:18,131 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 06:36:18,132 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 06:36:18,132 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 06:36:18,132 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 06:36:18,138 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:18" (1/1) ... [2021-11-21 06:36:18,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:18" (1/1) ... [2021-11-21 06:36:18,143 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:18" (1/1) ... [2021-11-21 06:36:18,144 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:18" (1/1) ... [2021-11-21 06:36:18,147 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:18" (1/1) ... [2021-11-21 06:36:18,149 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:18" (1/1) ... [2021-11-21 06:36:18,150 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:18" (1/1) ... [2021-11-21 06:36:18,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 06:36:18,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 06:36:18,152 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 06:36:18,152 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 06:36:18,153 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:18" (1/1) ... [2021-11-21 06:36:18,160 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-21 06:36:18,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf82820-d787-4093-9ab8-7061e90188dc/bin/ukojak-vF6T2TMglN/z3 [2021-11-21 06:36:18,182 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf82820-d787-4093-9ab8-7061e90188dc/bin/ukojak-vF6T2TMglN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-21 06:36:18,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf82820-d787-4093-9ab8-7061e90188dc/bin/ukojak-vF6T2TMglN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-21 06:36:18,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 06:36:18,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 06:36:18,217 INFO L130 BoogieDeclarations]: Found specification of procedure id2 [2021-11-21 06:36:18,217 INFO L138 BoogieDeclarations]: Found implementation of procedure id2 [2021-11-21 06:36:18,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 06:36:18,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 06:36:18,218 INFO L130 BoogieDeclarations]: Found specification of procedure id [2021-11-21 06:36:18,218 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2021-11-21 06:36:18,278 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 06:36:18,279 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 06:36:18,367 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 06:36:18,391 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 06:36:18,391 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-21 06:36:18,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:36:18 BoogieIcfgContainer [2021-11-21 06:36:18,394 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 06:36:18,395 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-21 06:36:18,395 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-21 06:36:18,405 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-21 06:36:18,405 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:36:18" (1/1) ... [2021-11-21 06:36:18,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 06:36:18,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:36:18,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 20 states and 23 transitions. [2021-11-21 06:36:18,471 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2021-11-21 06:36:18,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-21 06:36:18,477 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:36:18,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:36:18,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:36:18,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 06:36:18,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:36:18,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2021-11-21 06:36:18,784 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2021-11-21 06:36:18,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-21 06:36:18,785 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:36:18,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:36:18,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:36:19,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 06:36:19,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:36:19,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 31 states and 37 transitions. [2021-11-21 06:36:19,402 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2021-11-21 06:36:19,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-21 06:36:19,404 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:36:19,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:36:19,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:36:19,758 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 06:36:20,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:36:20,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 39 states and 47 transitions. [2021-11-21 06:36:20,360 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2021-11-21 06:36:20,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-21 06:36:20,361 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:36:20,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:36:20,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:36:20,587 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-21 06:36:21,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:36:21,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 37 states and 45 transitions. [2021-11-21 06:36:21,069 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2021-11-21 06:36:21,070 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-21 06:36:21,070 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2021-11-21 06:36:21,084 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-11-21 06:36:21,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:36:21 ImpRootNode [2021-11-21 06:36:21,214 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-21 06:36:21,215 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 06:36:21,215 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 06:36:21,215 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 06:36:21,215 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:36:18" (3/4) ... [2021-11-21 06:36:21,218 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-21 06:36:21,224 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id2 [2021-11-21 06:36:21,225 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2021-11-21 06:36:21,229 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-11-21 06:36:21,230 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-21 06:36:21,230 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-21 06:36:21,230 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-21 06:36:21,270 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf82820-d787-4093-9ab8-7061e90188dc/bin/ukojak-vF6T2TMglN/witness.graphml [2021-11-21 06:36:21,270 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 06:36:21,271 INFO L158 Benchmark]: Toolchain (without parser) took 3391.66ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 62.3MB in the beginning and 90.3MB in the end (delta: -28.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 06:36:21,279 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 96.5MB. Free memory was 51.4MB in the beginning and 51.4MB in the end (delta: 50.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 06:36:21,279 INFO L158 Benchmark]: CACSL2BoogieTranslator took 226.83ms. Allocated memory is still 96.5MB. Free memory was 62.1MB in the beginning and 71.2MB in the end (delta: -9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-21 06:36:21,280 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.14ms. Allocated memory is still 96.5MB. Free memory was 71.2MB in the beginning and 70.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 06:36:21,280 INFO L158 Benchmark]: Boogie Preprocessor took 19.28ms. Allocated memory is still 96.5MB. Free memory was 70.0MB in the beginning and 69.0MB in the end (delta: 974.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 06:36:21,281 INFO L158 Benchmark]: RCFGBuilder took 241.86ms. Allocated memory is still 96.5MB. Free memory was 69.0MB in the beginning and 59.3MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-21 06:36:21,282 INFO L158 Benchmark]: CodeCheck took 2819.26ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 59.3MB in the beginning and 93.3MB in the end (delta: -34.0MB). Peak memory consumption was 45.5MB. Max. memory is 16.1GB. [2021-11-21 06:36:21,282 INFO L158 Benchmark]: Witness Printer took 55.61ms. Allocated memory is still 117.4MB. Free memory was 93.3MB in the beginning and 90.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 06:36:21,285 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 3 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 5, 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, 118 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 30 mSDsluCounter, 131 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 46 mSDsCounter, 93 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 191 IncrementalHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 93 mSolverCounterUnsat, 85 mSDtfsCounter, 191 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 511 GetRequests, 455 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 783 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 194 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 12/14 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: 27]: 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 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 96.5MB. Free memory was 51.4MB in the beginning and 51.4MB in the end (delta: 50.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 226.83ms. Allocated memory is still 96.5MB. Free memory was 62.1MB in the beginning and 71.2MB in the end (delta: -9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.14ms. Allocated memory is still 96.5MB. Free memory was 71.2MB in the beginning and 70.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.28ms. Allocated memory is still 96.5MB. Free memory was 70.0MB in the beginning and 69.0MB in the end (delta: 974.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 241.86ms. Allocated memory is still 96.5MB. Free memory was 69.0MB in the beginning and 59.3MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 2819.26ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 59.3MB in the beginning and 93.3MB in the end (delta: -34.0MB). Peak memory consumption was 45.5MB. Max. memory is 16.1GB. * Witness Printer took 55.61ms. Allocated memory is still 117.4MB. Free memory was 93.3MB in the beginning and 90.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-21 06:36:21,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf82820-d787-4093-9ab8-7061e90188dc/bin/ukojak-vF6T2TMglN/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