./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id_i15_o15-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d7d42e8f-2863-4def-8a06-35c58002c6a8/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d7d42e8f-2863-4def-8a06-35c58002c6a8/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d7d42e8f-2863-4def-8a06-35c58002c6a8/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d7d42e8f-2863-4def-8a06-35c58002c6a8/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_i15_o15-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d7d42e8f-2863-4def-8a06-35c58002c6a8/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d7d42e8f-2863-4def-8a06-35c58002c6a8/bin/ukojak --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 81c3a4bcb7df13b97375e2abc10c6fdc1a8edbd3 .......................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 18:07:21,290 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 18:07:21,293 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 18:07:21,364 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 18:07:21,365 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 18:07:21,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 18:07:21,375 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 18:07:21,385 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 18:07:21,389 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 18:07:21,398 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 18:07:21,401 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 18:07:21,402 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 18:07:21,404 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 18:07:21,407 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 18:07:21,410 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 18:07:21,413 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 18:07:21,415 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 18:07:21,420 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 18:07:21,423 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 18:07:21,430 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 18:07:21,436 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 18:07:21,438 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 18:07:21,440 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 18:07:21,442 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 18:07:21,450 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 18:07:21,450 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 18:07:21,451 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 18:07:21,454 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 18:07:21,455 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 18:07:21,456 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 18:07:21,457 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 18:07:21,459 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 18:07:21,462 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 18:07:21,464 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 18:07:21,465 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 18:07:21,466 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 18:07:21,467 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 18:07:21,467 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 18:07:21,467 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 18:07:21,469 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 18:07:21,470 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 18:07:21,471 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d7d42e8f-2863-4def-8a06-35c58002c6a8/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 18:07:21,501 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 18:07:21,501 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 18:07:21,507 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 18:07:21,507 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 18:07:21,508 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 18:07:21,509 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 18:07:21,509 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 18:07:21,509 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 18:07:21,509 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 18:07:21,510 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 18:07:21,510 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 18:07:21,510 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 18:07:21,510 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 18:07:21,511 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 18:07:21,511 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 18:07:21,511 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 18:07:21,511 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 18:07:21,512 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 18:07:21,512 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 18:07:21,512 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 18:07:21,512 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 18:07:21,513 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 18:07:21,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 18:07:21,513 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 18:07:21,513 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 18:07:21,514 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 18:07:21,514 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 18:07:21,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 18:07:21,514 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 18:07:21,515 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-vcloud-master/worker/run_dir_d7d42e8f-2863-4def-8a06-35c58002c6a8/bin/ukojak/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d7d42e8f-2863-4def-8a06-35c58002c6a8/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81c3a4bcb7df13b97375e2abc10c6fdc1a8edbd3 [2020-12-01 18:07:21,798 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 18:07:21,822 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 18:07:21,841 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 18:07:21,843 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 18:07:21,844 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 18:07:21,845 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d7d42e8f-2863-4def-8a06-35c58002c6a8/bin/ukojak/../../sv-benchmarks/c/recursive-simple/id_i15_o15-2.c [2020-12-01 18:07:21,923 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d7d42e8f-2863-4def-8a06-35c58002c6a8/bin/ukojak/data/6d05547ec/05bfbc7eddc140efa46bbda4e4767027/FLAG946bc862b [2020-12-01 18:07:22,506 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 18:07:22,506 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d7d42e8f-2863-4def-8a06-35c58002c6a8/sv-benchmarks/c/recursive-simple/id_i15_o15-2.c [2020-12-01 18:07:22,513 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d7d42e8f-2863-4def-8a06-35c58002c6a8/bin/ukojak/data/6d05547ec/05bfbc7eddc140efa46bbda4e4767027/FLAG946bc862b [2020-12-01 18:07:22,868 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d7d42e8f-2863-4def-8a06-35c58002c6a8/bin/ukojak/data/6d05547ec/05bfbc7eddc140efa46bbda4e4767027 [2020-12-01 18:07:22,871 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 18:07:22,873 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 18:07:22,877 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 18:07:22,877 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 18:07:22,882 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 18:07:22,883 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:07:22" (1/1) ... [2020-12-01 18:07:22,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14324fec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:07:22, skipping insertion in model container [2020-12-01 18:07:22,886 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:07:22" (1/1) ... [2020-12-01 18:07:22,897 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 18:07:22,913 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 18:07:23,186 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:07:23,215 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 18:07:23,247 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:07:23,269 INFO L208 MainTranslator]: Completed translation [2020-12-01 18:07:23,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:07:23 WrapperNode [2020-12-01 18:07:23,271 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 18:07:23,277 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 18:07:23,277 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 18:07:23,278 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 18:07:23,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:07:23" (1/1) ... [2020-12-01 18:07:23,307 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:07:23" (1/1) ... [2020-12-01 18:07:23,333 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 18:07:23,334 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 18:07:23,335 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 18:07:23,335 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 18:07:23,346 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:07:23" (1/1) ... [2020-12-01 18:07:23,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:07:23" (1/1) ... [2020-12-01 18:07:23,349 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:07:23" (1/1) ... [2020-12-01 18:07:23,350 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:07:23" (1/1) ... [2020-12-01 18:07:23,357 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:07:23" (1/1) ... [2020-12-01 18:07:23,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:07:23" (1/1) ... [2020-12-01 18:07:23,368 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:07:23" (1/1) ... [2020-12-01 18:07:23,370 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 18:07:23,372 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 18:07:23,374 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 18:07:23,374 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 18:07:23,377 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:07:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d7d42e8f-2863-4def-8a06-35c58002c6a8/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 18:07:23,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 18:07:23,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 18:07:23,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 18:07:23,481 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-12-01 18:07:23,482 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-12-01 18:07:23,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 18:07:23,772 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 18:07:23,775 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-01 18:07:23,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:07:23 BoogieIcfgContainer [2020-12-01 18:07:23,779 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 18:07:23,781 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 18:07:23,781 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 18:07:23,793 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 18:07:23,794 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:07:23" (1/1) ... [2020-12-01 18:07:23,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 18:07:23,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:07:23,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2020-12-01 18:07:23,861 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-12-01 18:07:23,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 18:07:23,867 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:07:23,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:07:24,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:07:24,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:07:24,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 18 transitions. [2020-12-01 18:07:24,244 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2020-12-01 18:07:24,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 18:07:24,246 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:07:24,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:07:24,453 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 18:07:24,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:07:24,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 19 states and 22 transitions. [2020-12-01 18:07:24,670 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2020-12-01 18:07:24,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-01 18:07:24,671 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:07:24,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:07:24,749 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-01 18:07:25,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:07:25,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 22 states and 27 transitions. [2020-12-01 18:07:25,015 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2020-12-01 18:07:25,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-01 18:07:25,017 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:07:25,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:07:25,156 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-01 18:07:25,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:07:25,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 25 states and 31 transitions. [2020-12-01 18:07:25,384 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2020-12-01 18:07:25,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-01 18:07:25,386 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:07:25,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:07:25,506 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-12-01 18:07:25,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:07:25,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 28 states and 35 transitions. [2020-12-01 18:07:25,768 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2020-12-01 18:07:25,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-12-01 18:07:25,771 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:07:25,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:07:25,941 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-12-01 18:07:26,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:07:26,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 31 states and 39 transitions. [2020-12-01 18:07:26,294 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 39 transitions. [2020-12-01 18:07:26,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-01 18:07:26,300 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:07:26,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:07:26,455 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-12-01 18:07:26,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:07:26,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 34 states and 43 transitions. [2020-12-01 18:07:26,779 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 43 transitions. [2020-12-01 18:07:26,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-01 18:07:26,785 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:07:26,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:07:26,900 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-12-01 18:07:27,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:07:27,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 37 states and 47 transitions. [2020-12-01 18:07:27,247 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 47 transitions. [2020-12-01 18:07:27,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-12-01 18:07:27,253 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:07:27,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:07:27,361 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 115 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2020-12-01 18:07:27,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:07:27,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 40 states and 51 transitions. [2020-12-01 18:07:27,763 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2020-12-01 18:07:27,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-12-01 18:07:27,769 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:07:27,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:07:27,895 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 143 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2020-12-01 18:07:28,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:07:28,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 43 states and 55 transitions. [2020-12-01 18:07:28,267 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 55 transitions. [2020-12-01 18:07:28,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-12-01 18:07:28,269 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:07:28,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:07:28,445 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 174 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2020-12-01 18:07:28,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:07:28,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 46 states and 59 transitions. [2020-12-01 18:07:28,827 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 59 transitions. [2020-12-01 18:07:28,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-12-01 18:07:28,828 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:07:28,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:07:28,967 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 208 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2020-12-01 18:07:29,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:07:29,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 49 states and 63 transitions. [2020-12-01 18:07:29,398 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 63 transitions. [2020-12-01 18:07:29,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-01 18:07:29,401 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:07:29,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:07:29,615 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2020-12-01 18:07:30,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:07:30,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 52 states and 67 transitions. [2020-12-01 18:07:30,112 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 67 transitions. [2020-12-01 18:07:30,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-12-01 18:07:30,117 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:07:30,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:07:30,323 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 285 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2020-12-01 18:07:30,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:07:30,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 55 states and 71 transitions. [2020-12-01 18:07:30,777 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 71 transitions. [2020-12-01 18:07:30,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-12-01 18:07:30,778 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:07:30,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:07:30,945 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 328 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2020-12-01 18:07:31,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:07:31,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 58 states and 75 transitions. [2020-12-01 18:07:31,397 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 75 transitions. [2020-12-01 18:07:31,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-12-01 18:07:31,398 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:07:31,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:07:31,434 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:07:31,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:07:31,459 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:07:31,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:07:31,580 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:07:31,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:07:31,621 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:07:32,279 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 16 iterations. [2020-12-01 18:07:32,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 06:07:32 ImpRootNode [2020-12-01 18:07:32,406 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 18:07:32,407 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 18:07:32,412 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 18:07:32,413 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 18:07:32,414 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:07:23" (3/4) ... [2020-12-01 18:07:32,416 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 18:07:32,530 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d7d42e8f-2863-4def-8a06-35c58002c6a8/bin/ukojak/witness.graphml [2020-12-01 18:07:32,530 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 18:07:32,532 INFO L168 Benchmark]: Toolchain (without parser) took 9657.71 ms. Allocated memory was 94.4 MB in the beginning and 167.8 MB in the end (delta: 73.4 MB). Free memory was 61.5 MB in the beginning and 106.5 MB in the end (delta: -45.0 MB). Peak memory consumption was 28.2 MB. Max. memory is 16.1 GB. [2020-12-01 18:07:32,533 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 94.4 MB. Free memory was 67.0 MB in the beginning and 66.9 MB in the end (delta: 26.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:07:32,535 INFO L168 Benchmark]: CACSL2BoogieTranslator took 395.01 ms. Allocated memory is still 94.4 MB. Free memory was 61.4 MB in the beginning and 72.2 MB in the end (delta: -10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 18:07:32,535 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.04 ms. Allocated memory is still 94.4 MB. Free memory was 71.8 MB in the beginning and 70.6 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:07:32,536 INFO L168 Benchmark]: Boogie Preprocessor took 36.61 ms. Allocated memory is still 94.4 MB. Free memory was 70.6 MB in the beginning and 69.7 MB in the end (delta: 881.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:07:32,537 INFO L168 Benchmark]: RCFGBuilder took 407.20 ms. Allocated memory is still 94.4 MB. Free memory was 69.7 MB in the beginning and 57.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-01 18:07:32,537 INFO L168 Benchmark]: CodeCheck took 8626.08 ms. Allocated memory was 94.4 MB in the beginning and 167.8 MB in the end (delta: 73.4 MB). Free memory was 57.6 MB in the beginning and 110.7 MB in the end (delta: -53.1 MB). Peak memory consumption was 22.8 MB. Max. memory is 16.1 GB. [2020-12-01 18:07:32,538 INFO L168 Benchmark]: Witness Printer took 123.06 ms. Allocated memory is still 167.8 MB. Free memory was 110.7 MB in the beginning and 106.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:07:32,546 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. VerificationResult: UNSAFE, OverallTime: 8.4s, OverallIterations: 16, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 229376 SDtfs, 204792 SDslu, 352240 SDs, 0 SdLazy, 1101638 SolverSat, 225242 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9811 GetRequests, 9332 SyntacticMatches, 383 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3405 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 864 NumberOfCodeBlocks, 864 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 750 ConstructedInterpolants, 0 QuantifiedInterpolants, 131042 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 1 PerfectInterpolantSequences, 1379/3150 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: 4]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L12] int input = 15; [L13] CALL, EXPR id(input) 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; [L13] RET, EXPR id(input) [L13] int result = id(input); [L14] COND TRUE result == 15 [L4] __assert_fail("0", "id_i15_o15-2.c", 4, "reach_error") * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 94.4 MB. Free memory was 67.0 MB in the beginning and 66.9 MB in the end (delta: 26.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 395.01 ms. Allocated memory is still 94.4 MB. Free memory was 61.4 MB in the beginning and 72.2 MB in the end (delta: -10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.04 ms. Allocated memory is still 94.4 MB. Free memory was 71.8 MB in the beginning and 70.6 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.61 ms. Allocated memory is still 94.4 MB. Free memory was 70.6 MB in the beginning and 69.7 MB in the end (delta: 881.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 407.20 ms. Allocated memory is still 94.4 MB. Free memory was 69.7 MB in the beginning and 57.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * CodeCheck took 8626.08 ms. Allocated memory was 94.4 MB in the beginning and 167.8 MB in the end (delta: 73.4 MB). Free memory was 57.6 MB in the beginning and 110.7 MB in the end (delta: -53.1 MB). Peak memory consumption was 22.8 MB. Max. memory is 16.1 GB. * Witness Printer took 123.06 ms. Allocated memory is still 167.8 MB. Free memory was 110.7 MB in the beginning and 106.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...