./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id2_b3_o5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bf8914-8b1c-4d13-a9bd-c3dd4501e110/bin/ukojak-2xVlg8857e/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bf8914-8b1c-4d13-a9bd-c3dd4501e110/bin/ukojak-2xVlg8857e/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bf8914-8b1c-4d13-a9bd-c3dd4501e110/bin/ukojak-2xVlg8857e/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bf8914-8b1c-4d13-a9bd-c3dd4501e110/bin/ukojak-2xVlg8857e/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id2_b3_o5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bf8914-8b1c-4d13-a9bd-c3dd4501e110/bin/ukojak-2xVlg8857e/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bf8914-8b1c-4d13-a9bd-c3dd4501e110/bin/ukojak-2xVlg8857e --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 bfa501ca93fc9b0e6d760bbe690b8b09cdd28cd292bfa547a39097dc8f6d3704 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 22:32:29,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 22:32:29,340 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 22:32:29,403 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 22:32:29,403 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 22:32:29,410 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 22:32:29,413 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 22:32:29,418 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 22:32:29,421 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 22:32:29,430 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 22:32:29,431 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 22:32:29,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 22:32:29,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 22:32:29,438 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 22:32:29,441 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 22:32:29,447 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 22:32:29,449 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 22:32:29,451 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 22:32:29,453 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 22:32:29,465 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 22:32:29,467 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 22:32:29,469 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 22:32:29,472 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 22:32:29,474 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 22:32:29,479 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 22:32:29,479 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 22:32:29,480 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 22:32:29,482 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 22:32:29,483 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 22:32:29,485 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 22:32:29,486 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 22:32:29,487 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 22:32:29,489 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 22:32:29,491 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 22:32:29,493 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 22:32:29,493 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 22:32:29,494 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 22:32:29,494 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 22:32:29,495 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 22:32:29,496 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 22:32:29,497 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 22:32:29,498 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bf8914-8b1c-4d13-a9bd-c3dd4501e110/bin/ukojak-2xVlg8857e/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-13 22:32:29,551 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 22:32:29,551 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 22:32:29,553 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 22:32:29,553 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-13 22:32:29,554 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 22:32:29,554 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 22:32:29,555 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 22:32:29,555 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 22:32:29,555 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 22:32:29,556 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 22:32:29,557 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 22:32:29,557 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 22:32:29,557 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 22:32:29,558 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 22:32:29,558 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 22:32:29,558 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 22:32:29,558 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 22:32:29,558 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 22:32:29,559 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-13 22:32:29,559 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-13 22:32:29,559 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 22:32:29,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-13 22:32:29,560 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 22:32:29,560 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 22:32:29,560 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 22:32:29,561 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-13 22:32:29,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 22:32:29,561 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 22:32:29,561 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_98bf8914-8b1c-4d13-a9bd-c3dd4501e110/bin/ukojak-2xVlg8857e/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bf8914-8b1c-4d13-a9bd-c3dd4501e110/bin/ukojak-2xVlg8857e Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfa501ca93fc9b0e6d760bbe690b8b09cdd28cd292bfa547a39097dc8f6d3704 [2021-11-13 22:32:29,899 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 22:32:29,928 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 22:32:29,931 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 22:32:29,933 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 22:32:29,935 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 22:32:29,937 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bf8914-8b1c-4d13-a9bd-c3dd4501e110/bin/ukojak-2xVlg8857e/../../sv-benchmarks/c/recursive-simple/id2_b3_o5.c [2021-11-13 22:32:30,049 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bf8914-8b1c-4d13-a9bd-c3dd4501e110/bin/ukojak-2xVlg8857e/data/8321b138d/7178085e78654effbc6c1c10a13298f3/FLAG31eb0dffb [2021-11-13 22:32:30,619 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 22:32:30,620 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bf8914-8b1c-4d13-a9bd-c3dd4501e110/sv-benchmarks/c/recursive-simple/id2_b3_o5.c [2021-11-13 22:32:30,627 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bf8914-8b1c-4d13-a9bd-c3dd4501e110/bin/ukojak-2xVlg8857e/data/8321b138d/7178085e78654effbc6c1c10a13298f3/FLAG31eb0dffb [2021-11-13 22:32:30,961 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bf8914-8b1c-4d13-a9bd-c3dd4501e110/bin/ukojak-2xVlg8857e/data/8321b138d/7178085e78654effbc6c1c10a13298f3 [2021-11-13 22:32:30,964 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 22:32:30,966 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 22:32:30,971 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 22:32:30,971 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 22:32:30,976 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 22:32:30,977 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:32:30" (1/1) ... [2021-11-13 22:32:30,980 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a42dca6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:32:30, skipping insertion in model container [2021-11-13 22:32:30,981 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:32:30" (1/1) ... [2021-11-13 22:32:30,990 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 22:32:31,007 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 22:32:31,223 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_98bf8914-8b1c-4d13-a9bd-c3dd4501e110/sv-benchmarks/c/recursive-simple/id2_b3_o5.c[771,784] [2021-11-13 22:32:31,227 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 22:32:31,238 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 22:32:31,256 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_98bf8914-8b1c-4d13-a9bd-c3dd4501e110/sv-benchmarks/c/recursive-simple/id2_b3_o5.c[771,784] [2021-11-13 22:32:31,257 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 22:32:31,272 INFO L208 MainTranslator]: Completed translation [2021-11-13 22:32:31,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:32:31 WrapperNode [2021-11-13 22:32:31,272 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 22:32:31,274 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 22:32:31,274 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 22:32:31,274 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 22:32:31,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:32:31" (1/1) ... [2021-11-13 22:32:31,292 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:32:31" (1/1) ... [2021-11-13 22:32:31,309 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 22:32:31,310 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 22:32:31,311 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 22:32:31,311 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 22:32:31,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:32:31" (1/1) ... [2021-11-13 22:32:31,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:32:31" (1/1) ... [2021-11-13 22:32:31,325 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:32:31" (1/1) ... [2021-11-13 22:32:31,325 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:32:31" (1/1) ... [2021-11-13 22:32:31,329 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:32:31" (1/1) ... [2021-11-13 22:32:31,331 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:32:31" (1/1) ... [2021-11-13 22:32:31,332 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:32:31" (1/1) ... [2021-11-13 22:32:31,334 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 22:32:31,336 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 22:32:31,336 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 22:32:31,336 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 22:32:31,337 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:32:31" (1/1) ... [2021-11-13 22:32:31,347 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-13 22:32:31,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bf8914-8b1c-4d13-a9bd-c3dd4501e110/bin/ukojak-2xVlg8857e/z3 [2021-11-13 22:32:31,380 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bf8914-8b1c-4d13-a9bd-c3dd4501e110/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-13 22:32:31,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bf8914-8b1c-4d13-a9bd-c3dd4501e110/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-13 22:32:31,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 22:32:31,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 22:32:31,432 INFO L130 BoogieDeclarations]: Found specification of procedure id2 [2021-11-13 22:32:31,432 INFO L138 BoogieDeclarations]: Found implementation of procedure id2 [2021-11-13 22:32:31,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 22:32:31,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 22:32:31,433 INFO L130 BoogieDeclarations]: Found specification of procedure id [2021-11-13 22:32:31,433 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2021-11-13 22:32:31,709 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 22:32:31,710 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 22:32:31,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:32:31 BoogieIcfgContainer [2021-11-13 22:32:31,713 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 22:32:31,714 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-13 22:32:31,714 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-13 22:32:31,727 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-13 22:32:31,728 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:32:31" (1/1) ... [2021-11-13 22:32:31,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 22:32:31,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:32:31,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 20 states and 23 transitions. [2021-11-13 22:32:31,808 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2021-11-13 22:32:31,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-13 22:32:31,814 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:32:31,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:32:31,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:32:32,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:32:32,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:32:32,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2021-11-13 22:32:32,268 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2021-11-13 22:32:32,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-13 22:32:32,269 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:32:32,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:32:32,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:32:32,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:32:33,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:32:33,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 31 states and 37 transitions. [2021-11-13 22:32:33,095 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2021-11-13 22:32:33,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-13 22:32:33,097 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:32:33,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:32:33,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:32:33,567 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 22:32:34,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:32:34,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 39 states and 46 transitions. [2021-11-13 22:32:34,336 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 46 transitions. [2021-11-13 22:32:34,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-13 22:32:34,338 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:32:34,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:32:34,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:32:34,850 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-13 22:32:35,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:32:35,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 47 states and 56 transitions. [2021-11-13 22:32:35,887 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 56 transitions. [2021-11-13 22:32:35,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-13 22:32:35,890 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:32:35,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:32:35,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:32:36,385 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-13 22:32:37,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:32:37,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 51 states and 61 transitions. [2021-11-13 22:32:37,845 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 61 transitions. [2021-11-13 22:32:37,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-13 22:32:37,847 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:32:37,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:32:37,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:32:38,288 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-13 22:32:38,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:32:38,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 42 states and 47 transitions. [2021-11-13 22:32:38,671 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2021-11-13 22:32:38,672 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 22:32:38,673 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2021-11-13 22:32:38,693 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-11-13 22:32:38,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 10:32:38 ImpRootNode [2021-11-13 22:32:38,821 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-13 22:32:38,822 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 22:32:38,822 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 22:32:38,822 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 22:32:38,823 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:32:31" (3/4) ... [2021-11-13 22:32:38,827 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-13 22:32:38,834 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id2 [2021-11-13 22:32:38,834 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2021-11-13 22:32:38,839 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-11-13 22:32:38,839 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-13 22:32:38,840 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-13 22:32:38,840 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-13 22:32:38,887 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bf8914-8b1c-4d13-a9bd-c3dd4501e110/bin/ukojak-2xVlg8857e/witness.graphml [2021-11-13 22:32:38,887 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 22:32:38,889 INFO L158 Benchmark]: Toolchain (without parser) took 7922.02ms. Allocated memory was 90.2MB in the beginning and 138.4MB in the end (delta: 48.2MB). Free memory was 55.3MB in the beginning and 104.0MB in the end (delta: -48.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 22:32:38,889 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 90.2MB. Free memory was 63.5MB in the beginning and 63.5MB in the end (delta: 28.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 22:32:38,890 INFO L158 Benchmark]: CACSL2BoogieTranslator took 302.06ms. Allocated memory is still 90.2MB. Free memory was 55.3MB in the beginning and 65.6MB in the end (delta: -10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 22:32:38,891 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.54ms. Allocated memory is still 90.2MB. Free memory was 65.6MB in the beginning and 64.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 22:32:38,891 INFO L158 Benchmark]: Boogie Preprocessor took 24.26ms. Allocated memory is still 90.2MB. Free memory was 64.4MB in the beginning and 63.6MB in the end (delta: 813.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 22:32:38,892 INFO L158 Benchmark]: RCFGBuilder took 377.51ms. Allocated memory is still 90.2MB. Free memory was 63.2MB in the beginning and 53.1MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 22:32:38,893 INFO L158 Benchmark]: CodeCheck took 7107.38ms. Allocated memory was 90.2MB in the beginning and 138.4MB in the end (delta: 48.2MB). Free memory was 53.1MB in the beginning and 107.2MB in the end (delta: -54.1MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2021-11-13 22:32:38,894 INFO L158 Benchmark]: Witness Printer took 65.64ms. Allocated memory is still 138.4MB. Free memory was 107.2MB in the beginning and 104.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-13 22:32:38,898 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: 6.9s, OverallIterations: 7, 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, 211 SdHoareTripleChecker+Valid, 1650.82ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 68 mSDsluCounter, 247 SdHoareTripleChecker+Invalid, 1287.62ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 114 mSDsCounter, 235 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 465 IncrementalHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 235 mSolverCounterUnsat, 133 mSDtfsCounter, 465 mSolverCounterSat, 46.91ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1004 GetRequests, 877 SyntacticMatches, 23 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3617 ImplicationChecksByTransitivity, 4.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 138 ConstructedInterpolants, 0 QuantifiedInterpolants, 560 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 38/66 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 0.27ms. Allocated memory is still 90.2MB. Free memory was 63.5MB in the beginning and 63.5MB in the end (delta: 28.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 302.06ms. Allocated memory is still 90.2MB. Free memory was 55.3MB in the beginning and 65.6MB in the end (delta: -10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.54ms. Allocated memory is still 90.2MB. Free memory was 65.6MB in the beginning and 64.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.26ms. Allocated memory is still 90.2MB. Free memory was 64.4MB in the beginning and 63.6MB in the end (delta: 813.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 377.51ms. Allocated memory is still 90.2MB. Free memory was 63.2MB in the beginning and 53.1MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 7107.38ms. Allocated memory was 90.2MB in the beginning and 138.4MB in the end (delta: 48.2MB). Free memory was 53.1MB in the beginning and 107.2MB in the end (delta: -54.1MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Witness Printer took 65.64ms. Allocated memory is still 138.4MB. Free memory was 107.2MB in the beginning and 104.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-13 22:32:38,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bf8914-8b1c-4d13-a9bd-c3dd4501e110/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE