./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id_o20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29e3e3db-60b8-4efa-ae4a-497fcbf37b84/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29e3e3db-60b8-4efa-ae4a-497fcbf37b84/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29e3e3db-60b8-4efa-ae4a-497fcbf37b84/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29e3e3db-60b8-4efa-ae4a-497fcbf37b84/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_o20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29e3e3db-60b8-4efa-ae4a-497fcbf37b84/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29e3e3db-60b8-4efa-ae4a-497fcbf37b84/bin/ukojak-LBtLqBUTdQ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 78daae7f2fbb1fbd12685beb952877b8686cc8bc3d2c7fcd55d0c5d2b019aa0d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 00:44:00,484 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:44:00,486 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:44:00,524 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:44:00,524 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:44:00,526 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:44:00,528 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:44:00,530 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:44:00,532 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:44:00,533 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:44:00,535 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:44:00,536 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:44:00,537 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:44:00,538 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:44:00,540 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:44:00,542 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:44:00,543 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:44:00,544 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:44:00,547 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:44:00,550 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:44:00,552 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:44:00,553 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:44:00,555 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:44:00,556 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:44:00,561 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:44:00,561 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:44:00,562 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:44:00,563 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:44:00,563 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:44:00,565 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:44:00,565 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:44:00,566 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:44:00,567 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:44:00,568 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:44:00,570 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:44:00,570 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:44:00,571 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:44:00,572 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:44:00,572 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:44:00,573 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:44:00,574 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:44:00,580 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29e3e3db-60b8-4efa-ae4a-497fcbf37b84/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 00:44:00,628 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:44:00,628 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:44:00,630 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 00:44:00,630 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 00:44:00,631 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:44:00,631 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:44:00,632 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:44:00,632 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 00:44:00,638 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:44:00,639 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 00:44:00,640 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:44:00,640 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 00:44:00,640 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:44:00,640 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 00:44:00,640 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 00:44:00,641 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 00:44:00,641 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:44:00,641 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 00:44:00,641 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 00:44:00,642 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 00:44:00,642 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:44:00,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:44:00,642 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:44:00,642 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:44:00,643 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 00:44:00,643 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 00:44:00,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:44:00,643 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 00:44:00,644 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_29e3e3db-60b8-4efa-ae4a-497fcbf37b84/bin/ukojak-LBtLqBUTdQ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29e3e3db-60b8-4efa-ae4a-497fcbf37b84/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78daae7f2fbb1fbd12685beb952877b8686cc8bc3d2c7fcd55d0c5d2b019aa0d [2021-11-23 00:44:00,983 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:44:01,019 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:44:01,022 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:44:01,024 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:44:01,025 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:44:01,027 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29e3e3db-60b8-4efa-ae4a-497fcbf37b84/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/recursive-simple/id_o20.c [2021-11-23 00:44:01,120 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29e3e3db-60b8-4efa-ae4a-497fcbf37b84/bin/ukojak-LBtLqBUTdQ/data/726338515/687ce9a2a08543df8915c1123eec6966/FLAG08144239b [2021-11-23 00:44:01,688 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:44:01,690 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29e3e3db-60b8-4efa-ae4a-497fcbf37b84/sv-benchmarks/c/recursive-simple/id_o20.c [2021-11-23 00:44:01,710 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29e3e3db-60b8-4efa-ae4a-497fcbf37b84/bin/ukojak-LBtLqBUTdQ/data/726338515/687ce9a2a08543df8915c1123eec6966/FLAG08144239b [2021-11-23 00:44:02,108 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29e3e3db-60b8-4efa-ae4a-497fcbf37b84/bin/ukojak-LBtLqBUTdQ/data/726338515/687ce9a2a08543df8915c1123eec6966 [2021-11-23 00:44:02,110 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:44:02,113 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:44:02,115 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:44:02,115 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:44:02,124 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:44:02,126 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:44:02" (1/1) ... [2021-11-23 00:44:02,127 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fc797a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:44:02, skipping insertion in model container [2021-11-23 00:44:02,127 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:44:02" (1/1) ... [2021-11-23 00:44:02,135 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:44:02,148 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:44:02,334 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_29e3e3db-60b8-4efa-ae4a-497fcbf37b84/sv-benchmarks/c/recursive-simple/id_o20.c[516,529] [2021-11-23 00:44:02,336 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:44:02,345 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:44:02,363 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_29e3e3db-60b8-4efa-ae4a-497fcbf37b84/sv-benchmarks/c/recursive-simple/id_o20.c[516,529] [2021-11-23 00:44:02,363 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:44:02,377 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:44:02,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:44:02 WrapperNode [2021-11-23 00:44:02,378 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:44:02,381 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:44:02,381 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:44:02,383 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:44:02,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:44:02" (1/1) ... [2021-11-23 00:44:02,399 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:44:02" (1/1) ... [2021-11-23 00:44:02,418 INFO L137 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2021-11-23 00:44:02,418 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:44:02,419 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:44:02,419 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:44:02,419 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:44:02,428 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:44:02" (1/1) ... [2021-11-23 00:44:02,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:44:02" (1/1) ... [2021-11-23 00:44:02,430 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:44:02" (1/1) ... [2021-11-23 00:44:02,430 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:44:02" (1/1) ... [2021-11-23 00:44:02,434 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:44:02" (1/1) ... [2021-11-23 00:44:02,436 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:44:02" (1/1) ... [2021-11-23 00:44:02,437 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:44:02" (1/1) ... [2021-11-23 00:44:02,445 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:44:02,447 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:44:02,447 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:44:02,447 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:44:02,449 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:44:02" (1/1) ... [2021-11-23 00:44:02,456 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:44:02,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29e3e3db-60b8-4efa-ae4a-497fcbf37b84/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 00:44:02,482 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29e3e3db-60b8-4efa-ae4a-497fcbf37b84/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 00:44:02,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29e3e3db-60b8-4efa-ae4a-497fcbf37b84/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 00:44:02,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 00:44:02,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:44:02,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:44:02,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 00:44:02,534 INFO L130 BoogieDeclarations]: Found specification of procedure id [2021-11-23 00:44:02,534 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2021-11-23 00:44:02,602 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:44:02,603 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:44:02,696 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:44:02,708 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:44:02,708 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 00:44:02,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:44:02 BoogieIcfgContainer [2021-11-23 00:44:02,711 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:44:02,711 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 00:44:02,712 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 00:44:02,722 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 00:44:02,722 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:44:02" (1/1) ... [2021-11-23 00:44:02,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:44:02,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:44:02,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2021-11-23 00:44:02,791 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2021-11-23 00:44:02,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 00:44:02,796 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:44:02,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:44:02,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:44:02,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:44:03,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:44:03,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2021-11-23 00:44:03,051 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2021-11-23 00:44:03,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 00:44:03,052 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:44:03,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:44:03,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:44:03,239 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 00:44:03,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:44:03,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 23 states and 27 transitions. [2021-11-23 00:44:03,555 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2021-11-23 00:44:03,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 00:44:03,557 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:44:03,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:44:03,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:44:03,850 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-23 00:44:04,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:44:04,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 28 states and 33 transitions. [2021-11-23 00:44:04,352 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2021-11-23 00:44:04,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 00:44:04,353 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:44:04,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:44:04,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:44:04,649 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-23 00:44:05,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:44:05,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 33 states and 39 transitions. [2021-11-23 00:44:05,178 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2021-11-23 00:44:05,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-23 00:44:05,179 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:44:05,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:44:05,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:44:05,441 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-23 00:44:06,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:44:06,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 38 states and 45 transitions. [2021-11-23 00:44:06,152 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2021-11-23 00:44:06,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-23 00:44:06,154 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:44:06,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:44:06,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:44:06,514 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-23 00:44:07,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:44:07,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 43 states and 51 transitions. [2021-11-23 00:44:07,282 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions. [2021-11-23 00:44:07,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-23 00:44:07,284 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:44:07,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:44:07,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:44:07,601 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2021-11-23 00:44:08,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:44:08,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 48 states and 57 transitions. [2021-11-23 00:44:08,370 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 57 transitions. [2021-11-23 00:44:08,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-23 00:44:08,372 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:44:08,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:44:08,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:44:08,697 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2021-11-23 00:44:09,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:44:09,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 53 states and 63 transitions. [2021-11-23 00:44:09,605 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 63 transitions. [2021-11-23 00:44:09,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-23 00:44:09,607 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:44:09,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:44:09,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:44:10,053 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-11-23 00:44:11,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:44:11,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 58 states and 69 transitions. [2021-11-23 00:44:11,279 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 69 transitions. [2021-11-23 00:44:11,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-23 00:44:11,281 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:44:11,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:44:11,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:44:11,749 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2021-11-23 00:44:13,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:44:13,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 63 states and 75 transitions. [2021-11-23 00:44:13,099 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 75 transitions. [2021-11-23 00:44:13,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-23 00:44:13,100 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:44:13,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:44:13,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:44:13,571 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2021-11-23 00:44:14,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:44:14,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 68 states and 81 transitions. [2021-11-23 00:44:14,898 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 81 transitions. [2021-11-23 00:44:14,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-23 00:44:14,900 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:44:14,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:44:14,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:44:15,454 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2021-11-23 00:44:17,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:44:17,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 73 states and 87 transitions. [2021-11-23 00:44:17,015 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 87 transitions. [2021-11-23 00:44:17,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-23 00:44:17,017 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:44:17,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:44:17,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:44:17,634 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2021-11-23 00:44:19,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:44:19,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 78 states and 93 transitions. [2021-11-23 00:44:19,273 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 93 transitions. [2021-11-23 00:44:19,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-23 00:44:19,275 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:44:19,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:44:19,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:44:19,888 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2021-11-23 00:44:21,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:44:21,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 83 states and 99 transitions. [2021-11-23 00:44:21,789 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 99 transitions. [2021-11-23 00:44:21,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-23 00:44:21,791 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:44:21,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:44:21,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:44:22,456 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2021-11-23 00:44:24,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:44:24,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 88 states and 105 transitions. [2021-11-23 00:44:24,472 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 105 transitions. [2021-11-23 00:44:24,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-23 00:44:24,474 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:44:24,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:44:24,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:44:25,164 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2021-11-23 00:44:27,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:44:27,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 93 states and 111 transitions. [2021-11-23 00:44:27,306 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 111 transitions. [2021-11-23 00:44:27,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-23 00:44:27,307 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:44:27,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:44:27,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:44:28,151 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 0 proven. 392 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2021-11-23 00:44:30,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:44:30,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 98 states and 117 transitions. [2021-11-23 00:44:30,518 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 117 transitions. [2021-11-23 00:44:30,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-23 00:44:30,519 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:44:30,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:44:30,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:44:31,332 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2021-11-23 00:44:33,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:44:33,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 103 states and 123 transitions. [2021-11-23 00:44:33,882 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 123 transitions. [2021-11-23 00:44:33,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-23 00:44:33,883 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:44:33,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:44:33,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:44:34,728 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 495 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2021-11-23 00:44:37,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:44:37,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 108 states and 129 transitions. [2021-11-23 00:44:37,408 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 129 transitions. [2021-11-23 00:44:37,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-23 00:44:37,410 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:44:37,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:44:37,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:44:38,500 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 0 proven. 551 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked. [2021-11-23 00:44:41,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:44:41,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 113 states and 135 transitions. [2021-11-23 00:44:41,589 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 135 transitions. [2021-11-23 00:44:41,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-23 00:44:41,590 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:44:41,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:44:41,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:44:41,742 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 00:44:41,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:44:43,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:44:43,200 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 00:44:43,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:44:43,660 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 21 iterations. [2021-11-23 00:44:43,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 12:44:43 ImpRootNode [2021-11-23 00:44:43,777 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 00:44:43,777 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 00:44:43,777 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 00:44:43,777 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 00:44:43,778 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:44:02" (3/4) ... [2021-11-23 00:44:43,780 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 00:44:43,899 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29e3e3db-60b8-4efa-ae4a-497fcbf37b84/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 00:44:43,899 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 00:44:43,901 INFO L158 Benchmark]: Toolchain (without parser) took 41786.98ms. Allocated memory was 86.0MB in the beginning and 337.6MB in the end (delta: 251.7MB). Free memory was 51.7MB in the beginning and 145.0MB in the end (delta: -93.4MB). Peak memory consumption was 158.1MB. Max. memory is 16.1GB. [2021-11-23 00:44:43,901 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 86.0MB. Free memory was 57.8MB in the beginning and 57.8MB in the end (delta: 28.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:44:43,902 INFO L158 Benchmark]: CACSL2BoogieTranslator took 263.69ms. Allocated memory was 86.0MB in the beginning and 132.1MB in the end (delta: 46.1MB). Free memory was 51.5MB in the beginning and 108.6MB in the end (delta: -57.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 00:44:43,903 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.31ms. Allocated memory is still 132.1MB. Free memory was 108.6MB in the beginning and 107.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:44:43,904 INFO L158 Benchmark]: Boogie Preprocessor took 26.35ms. Allocated memory is still 132.1MB. Free memory was 107.2MB in the beginning and 106.5MB in the end (delta: 711.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:44:43,905 INFO L158 Benchmark]: RCFGBuilder took 263.92ms. Allocated memory is still 132.1MB. Free memory was 106.5MB in the beginning and 97.4MB in the end (delta: 9.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 00:44:43,906 INFO L158 Benchmark]: CodeCheck took 41065.14ms. Allocated memory was 132.1MB in the beginning and 337.6MB in the end (delta: 205.5MB). Free memory was 97.4MB in the beginning and 148.2MB in the end (delta: -50.8MB). Peak memory consumption was 159.0MB. Max. memory is 16.1GB. [2021-11-23 00:44:43,907 INFO L158 Benchmark]: Witness Printer took 122.47ms. Allocated memory is still 337.6MB. Free memory was 148.2MB in the beginning and 145.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 00:44:43,912 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, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 40.9s, OverallIterations: 21, 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, 794 SdHoareTripleChecker+Valid, 9.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 420 mSDsluCounter, 1060 SdHoareTripleChecker+Invalid, 8.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 800 mSDsCounter, 2020 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4060 IncrementalHoareTripleChecker+Invalid, 6080 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2020 mSolverCounterUnsat, 260 mSDtfsCounter, 4060 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7075 GetRequests, 6272 SyntacticMatches, 495 SemanticMatches, 308 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34910 ImplicationChecksByTransitivity, 34.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 9.6s InterpolantComputationTime, 1449 NumberOfCodeBlocks, 1449 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1300 ConstructedInterpolants, 0 QuantifiedInterpolants, 5032 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 1 PerfectInterpolantSequences, 3800/7600 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 - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L12] unsigned int input = __VERIFIER_nondet_uint(); [L13] CALL, EXPR id(input) VAL [\old(x)=20] [L7] COND FALSE !(x==0) VAL [\old(x)=20, x=20] [L8] CALL, EXPR id(x-1) VAL [\old(x)=19] [L7] COND FALSE !(x==0) VAL [\old(x)=19, x=19] [L8] CALL, EXPR id(x-1) VAL [\old(x)=18] [L7] COND FALSE !(x==0) VAL [\old(x)=18, x=18] [L8] CALL, EXPR id(x-1) VAL [\old(x)=17] [L7] COND FALSE !(x==0) VAL [\old(x)=17, x=17] [L8] CALL, EXPR id(x-1) VAL [\old(x)=16] [L7] COND FALSE !(x==0) VAL [\old(x)=16, x=16] [L8] CALL, EXPR id(x-1) VAL [\old(x)=15] [L7] COND FALSE !(x==0) VAL [\old(x)=15, x=15] [L8] CALL, EXPR id(x-1) VAL [\old(x)=14] [L7] COND FALSE !(x==0) VAL [\old(x)=14, x=14] [L8] CALL, EXPR id(x-1) VAL [\old(x)=13] [L7] COND FALSE !(x==0) VAL [\old(x)=13, x=13] [L8] CALL, EXPR id(x-1) VAL [\old(x)=12] [L7] COND FALSE !(x==0) VAL [\old(x)=12, x=12] [L8] CALL, EXPR id(x-1) VAL [\old(x)=11] [L7] COND FALSE !(x==0) VAL [\old(x)=11, x=11] [L8] CALL, EXPR id(x-1) VAL [\old(x)=10] [L7] COND FALSE !(x==0) VAL [\old(x)=10, x=10] [L8] CALL, EXPR id(x-1) VAL [\old(x)=9] [L7] COND FALSE !(x==0) VAL [\old(x)=9, x=9] [L8] CALL, EXPR id(x-1) VAL [\old(x)=8] [L7] COND FALSE !(x==0) VAL [\old(x)=8, x=8] [L8] CALL, EXPR id(x-1) VAL [\old(x)=7] [L7] COND FALSE !(x==0) VAL [\old(x)=7, x=7] [L8] CALL, EXPR id(x-1) VAL [\old(x)=6] [L7] COND FALSE !(x==0) VAL [\old(x)=6, x=6] [L8] CALL, EXPR id(x-1) VAL [\old(x)=5] [L7] COND FALSE !(x==0) VAL [\old(x)=5, x=5] [L8] CALL, EXPR id(x-1) VAL [\old(x)=4] [L7] COND FALSE !(x==0) VAL [\old(x)=4, x=4] [L8] CALL, EXPR id(x-1) VAL [\old(x)=3] [L7] COND FALSE !(x==0) VAL [\old(x)=3, x=3] [L8] CALL, EXPR id(x-1) VAL [\old(x)=2] [L7] COND FALSE !(x==0) VAL [\old(x)=2, x=2] [L8] CALL, EXPR id(x-1) VAL [\old(x)=1] [L7] COND FALSE !(x==0) VAL [\old(x)=1, x=1] [L8] CALL, EXPR id(x-1) VAL [\old(x)=0] [L7] COND TRUE x==0 [L7] return 0; VAL [\old(x)=0, \result=0, x=0] [L8] RET, EXPR id(x-1) VAL [\old(x)=1, id(x-1)=0, x=1] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=2, id(x-1)=1, x=2] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=3, id(x-1)=2, x=3] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=4, id(x-1)=3, x=4] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=5, id(x-1)=4, x=5] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=6, id(x-1)=5, x=6] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=7, id(x-1)=6, x=7] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=8, id(x-1)=7, x=8] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=9, id(x-1)=8, x=9] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=10, id(x-1)=9, x=10] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=11, id(x-1)=10, x=11] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=12, id(x-1)=11, x=12] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=13, id(x-1)=12, x=13] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=14, id(x-1)=13, x=14] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=15, id(x-1)=14, x=15] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=16, id(x-1)=15, x=16] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=17, id(x-1)=16, x=17] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=18, id(x-1)=17, x=18] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=19, id(x-1)=18, x=19] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=20, id(x-1)=19, x=20] [L8] return id(x-1) + 1; [L13] RET, EXPR id(input) VAL [id(input)=20, input=20] [L13] unsigned int result = id(input); [L14] COND TRUE result == 20 VAL [input=20, result=20] [L15] reach_error() VAL [input=20, result=20] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 86.0MB. Free memory was 57.8MB in the beginning and 57.8MB in the end (delta: 28.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 263.69ms. Allocated memory was 86.0MB in the beginning and 132.1MB in the end (delta: 46.1MB). Free memory was 51.5MB in the beginning and 108.6MB in the end (delta: -57.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.31ms. Allocated memory is still 132.1MB. Free memory was 108.6MB in the beginning and 107.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.35ms. Allocated memory is still 132.1MB. Free memory was 107.2MB in the beginning and 106.5MB in the end (delta: 711.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 263.92ms. Allocated memory is still 132.1MB. Free memory was 106.5MB in the beginning and 97.4MB in the end (delta: 9.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * CodeCheck took 41065.14ms. Allocated memory was 132.1MB in the beginning and 337.6MB in the end (delta: 205.5MB). Free memory was 97.4MB in the beginning and 148.2MB in the end (delta: -50.8MB). Peak memory consumption was 159.0MB. Max. memory is 16.1GB. * Witness Printer took 122.47ms. Allocated memory is still 337.6MB. Free memory was 148.2MB in the beginning and 145.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-23 00:44:43,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29e3e3db-60b8-4efa-ae4a-497fcbf37b84/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE