./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 a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c9479bbf-f443-4dd2-bb94-78a78ee7ceaf/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c9479bbf-f443-4dd2-bb94-78a78ee7ceaf/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c9479bbf-f443-4dd2-bb94-78a78ee7ceaf/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c9479bbf-f443-4dd2-bb94-78a78ee7ceaf/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_i15_o15-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c9479bbf-f443-4dd2-bb94-78a78ee7ceaf/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c9479bbf-f443-4dd2-bb94-78a78ee7ceaf/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-a4ecdab [2020-11-28 04:43:35,517 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:43:35,520 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:43:35,587 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:43:35,588 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:43:35,594 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:43:35,597 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:43:35,601 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:43:35,604 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:43:35,612 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:43:35,614 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:43:35,616 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:43:35,617 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:43:35,621 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:43:35,622 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:43:35,626 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:43:35,627 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:43:35,632 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:43:35,636 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:43:35,646 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:43:35,648 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:43:35,649 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:43:35,652 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:43:35,653 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:43:35,657 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:43:35,657 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:43:35,658 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:43:35,660 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:43:35,660 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:43:35,662 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:43:35,662 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:43:35,663 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:43:35,666 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:43:35,667 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:43:35,668 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:43:35,668 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:43:35,669 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:43:35,670 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:43:35,670 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:43:35,671 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:43:35,672 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:43:35,674 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c9479bbf-f443-4dd2-bb94-78a78ee7ceaf/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:43:35,718 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:43:35,721 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:43:35,722 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:43:35,722 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:43:35,723 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:43:35,723 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:43:35,724 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:43:35,724 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:43:35,724 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:43:35,725 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:43:35,726 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:43:35,726 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:43:35,726 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:43:35,726 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:43:35,727 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:43:35,727 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:43:35,727 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:43:35,727 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:43:35,728 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:43:35,728 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:43:35,728 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:43:35,728 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:43:35,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:43:35,729 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:43:35,729 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:43:35,729 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:43:35,729 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:43:35,730 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:43:35,730 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:43:35,732 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_c9479bbf-f443-4dd2-bb94-78a78ee7ceaf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c9479bbf-f443-4dd2-bb94-78a78ee7ceaf/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81c3a4bcb7df13b97375e2abc10c6fdc1a8edbd3 [2020-11-28 04:43:36,004 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:43:36,045 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:43:36,051 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:43:36,053 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:43:36,054 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:43:36,055 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c9479bbf-f443-4dd2-bb94-78a78ee7ceaf/bin/ukojak/../../sv-benchmarks/c/recursive-simple/id_i15_o15-2.c [2020-11-28 04:43:36,142 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c9479bbf-f443-4dd2-bb94-78a78ee7ceaf/bin/ukojak/data/a18482f13/81a8e716b2254e928072f1ccaa81ef77/FLAG74aaf694d [2020-11-28 04:43:36,570 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:43:36,570 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c9479bbf-f443-4dd2-bb94-78a78ee7ceaf/sv-benchmarks/c/recursive-simple/id_i15_o15-2.c [2020-11-28 04:43:36,576 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c9479bbf-f443-4dd2-bb94-78a78ee7ceaf/bin/ukojak/data/a18482f13/81a8e716b2254e928072f1ccaa81ef77/FLAG74aaf694d [2020-11-28 04:43:36,970 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c9479bbf-f443-4dd2-bb94-78a78ee7ceaf/bin/ukojak/data/a18482f13/81a8e716b2254e928072f1ccaa81ef77 [2020-11-28 04:43:36,972 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:43:36,973 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:43:36,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:43:36,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:43:36,979 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:43:36,980 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:43:36" (1/1) ... [2020-11-28 04:43:36,983 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24420774 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:36, skipping insertion in model container [2020-11-28 04:43:36,983 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:43:36" (1/1) ... [2020-11-28 04:43:36,991 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:43:37,004 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:43:37,185 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:43:37,194 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:43:37,208 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:43:37,228 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:43:37,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:37 WrapperNode [2020-11-28 04:43:37,230 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:43:37,231 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:43:37,231 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:43:37,232 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:43:37,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:37" (1/1) ... [2020-11-28 04:43:37,251 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:37" (1/1) ... [2020-11-28 04:43:37,268 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:43:37,269 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:43:37,270 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:43:37,270 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:43:37,278 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:37" (1/1) ... [2020-11-28 04:43:37,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:37" (1/1) ... [2020-11-28 04:43:37,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:37" (1/1) ... [2020-11-28 04:43:37,280 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:37" (1/1) ... [2020-11-28 04:43:37,286 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:37" (1/1) ... [2020-11-28 04:43:37,288 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:37" (1/1) ... [2020-11-28 04:43:37,295 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:37" (1/1) ... [2020-11-28 04:43:37,297 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:43:37,299 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:43:37,299 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:43:37,299 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:43:37,300 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9479bbf-f443-4dd2-bb94-78a78ee7ceaf/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 [2020-11-28 04:43:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:43:37,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:43:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:43:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-11-28 04:43:37,357 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-11-28 04:43:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:43:37,580 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:43:37,580 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-28 04:43:37,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:43:37 BoogieIcfgContainer [2020-11-28 04:43:37,582 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:43:37,583 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:43:37,583 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:43:37,603 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:43:37,616 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:43:37" (1/1) ... [2020-11-28 04:43:37,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:43:37,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:37,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2020-11-28 04:43:37,664 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-11-28 04:43:37,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 04:43:37,669 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:37,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:37,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:43:37,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:37,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 18 transitions. [2020-11-28 04:43:37,956 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2020-11-28 04:43:37,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 04:43:37,957 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:37,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:38,097 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 04:43:38,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:38,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 19 states and 22 transitions. [2020-11-28 04:43:38,350 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2020-11-28 04:43:38,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-28 04:43:38,350 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:38,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:38,472 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-28 04:43:38,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:38,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 22 states and 27 transitions. [2020-11-28 04:43:38,812 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2020-11-28 04:43:38,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-28 04:43:38,814 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:38,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:38,953 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-11-28 04:43:39,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:39,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 25 states and 31 transitions. [2020-11-28 04:43:39,272 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2020-11-28 04:43:39,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-28 04:43:39,273 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:39,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:39,360 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-11-28 04:43:39,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:39,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 28 states and 35 transitions. [2020-11-28 04:43:39,695 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2020-11-28 04:43:39,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-11-28 04:43:39,697 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:39,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:39,792 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-11-28 04:43:40,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:40,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 31 states and 39 transitions. [2020-11-28 04:43:40,142 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 39 transitions. [2020-11-28 04:43:40,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-28 04:43:40,144 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:40,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:40,231 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-11-28 04:43:40,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:40,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 34 states and 43 transitions. [2020-11-28 04:43:40,543 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 43 transitions. [2020-11-28 04:43:40,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-28 04:43:40,545 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:40,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:40,641 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-11-28 04:43:41,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:41,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 37 states and 47 transitions. [2020-11-28 04:43:41,003 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 47 transitions. [2020-11-28 04:43:41,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-11-28 04:43:41,005 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:41,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:41,125 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 115 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2020-11-28 04:43:41,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:41,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 40 states and 51 transitions. [2020-11-28 04:43:41,514 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2020-11-28 04:43:41,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-11-28 04:43:41,516 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:41,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:41,647 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 143 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2020-11-28 04:43:42,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:42,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 43 states and 55 transitions. [2020-11-28 04:43:42,009 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 55 transitions. [2020-11-28 04:43:42,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-11-28 04:43:42,010 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:42,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:42,144 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 174 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2020-11-28 04:43:42,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:42,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 46 states and 59 transitions. [2020-11-28 04:43:42,553 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 59 transitions. [2020-11-28 04:43:42,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-11-28 04:43:42,554 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:42,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:42,664 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 208 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2020-11-28 04:43:43,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:43,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 49 states and 63 transitions. [2020-11-28 04:43:43,078 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 63 transitions. [2020-11-28 04:43:43,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-11-28 04:43:43,080 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:43,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:43,201 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2020-11-28 04:43:43,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:43,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 52 states and 67 transitions. [2020-11-28 04:43:43,720 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 67 transitions. [2020-11-28 04:43:43,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-11-28 04:43:43,723 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:43,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:43,862 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 285 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2020-11-28 04:43:44,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:44,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 55 states and 71 transitions. [2020-11-28 04:43:44,361 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 71 transitions. [2020-11-28 04:43:44,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-11-28 04:43:44,363 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:44,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:44,492 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 328 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2020-11-28 04:43:44,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:44,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 58 states and 75 transitions. [2020-11-28 04:43:44,990 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 75 transitions. [2020-11-28 04:43:44,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-11-28 04:43:44,992 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:45,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:43:45,018 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:43:45,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:43:45,043 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:43:45,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:43:45,173 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:43:45,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:43:45,210 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:43:45,276 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 16 iterations. [2020-11-28 04:43:45,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:43:45 ImpRootNode [2020-11-28 04:43:45,428 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:43:45,429 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:43:45,429 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:43:45,429 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:43:45,429 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:43:37" (3/4) ... [2020-11-28 04:43:45,431 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 04:43:45,555 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c9479bbf-f443-4dd2-bb94-78a78ee7ceaf/bin/ukojak/witness.graphml [2020-11-28 04:43:45,555 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:43:45,558 INFO L168 Benchmark]: Toolchain (without parser) took 8582.98 ms. Allocated memory was 104.9 MB in the beginning and 182.5 MB in the end (delta: 77.6 MB). Free memory was 70.9 MB in the beginning and 81.7 MB in the end (delta: -10.8 MB). Peak memory consumption was 65.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:45,558 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 104.9 MB. Free memory was 76.8 MB in the beginning and 76.8 MB in the end (delta: 29.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:43:45,559 INFO L168 Benchmark]: CACSL2BoogieTranslator took 254.21 ms. Allocated memory is still 104.9 MB. Free memory was 70.7 MB in the beginning and 81.9 MB in the end (delta: -11.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:45,559 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.42 ms. Allocated memory is still 104.9 MB. Free memory was 81.9 MB in the beginning and 80.8 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:43:45,560 INFO L168 Benchmark]: Boogie Preprocessor took 28.34 ms. Allocated memory is still 104.9 MB. Free memory was 80.8 MB in the beginning and 79.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:45,561 INFO L168 Benchmark]: RCFGBuilder took 283.73 ms. Allocated memory is still 104.9 MB. Free memory was 79.8 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:45,561 INFO L168 Benchmark]: CodeCheck took 7845.04 ms. Allocated memory was 104.9 MB in the beginning and 182.5 MB in the end (delta: 77.6 MB). Free memory was 67.1 MB in the beginning and 86.9 MB in the end (delta: -19.8 MB). Peak memory consumption was 59.9 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:45,562 INFO L168 Benchmark]: Witness Printer took 126.82 ms. Allocated memory is still 182.5 MB. Free memory was 86.9 MB in the beginning and 81.7 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:45,569 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: 7.6s, 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, 9.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9811 GetRequests, 9332 SyntacticMatches, 383 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3405 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.3s 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 0.29 ms. Allocated memory is still 104.9 MB. Free memory was 76.8 MB in the beginning and 76.8 MB in the end (delta: 29.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 254.21 ms. Allocated memory is still 104.9 MB. Free memory was 70.7 MB in the beginning and 81.9 MB in the end (delta: -11.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.42 ms. Allocated memory is still 104.9 MB. Free memory was 81.9 MB in the beginning and 80.8 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.34 ms. Allocated memory is still 104.9 MB. Free memory was 80.8 MB in the beginning and 79.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 283.73 ms. Allocated memory is still 104.9 MB. Free memory was 79.8 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 7845.04 ms. Allocated memory was 104.9 MB in the beginning and 182.5 MB in the end (delta: 77.6 MB). Free memory was 67.1 MB in the beginning and 86.9 MB in the end (delta: -19.8 MB). Peak memory consumption was 59.9 MB. Max. memory is 16.1 GB. * Witness Printer took 126.82 ms. Allocated memory is still 182.5 MB. Free memory was 86.9 MB in the beginning and 81.7 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...