./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 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_83371aa1-ce53-4420-a4a8-cb2d96aa4ee0/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_83371aa1-ce53-4420-a4a8-cb2d96aa4ee0/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_83371aa1-ce53-4420-a4a8-cb2d96aa4ee0/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_83371aa1-ce53-4420-a4a8-cb2d96aa4ee0/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_i15_o15-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_83371aa1-ce53-4420-a4a8-cb2d96aa4ee0/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_83371aa1-ce53-4420-a4a8-cb2d96aa4ee0/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ad4e6ad99a266ddeead98987e8e44db723af5bc7 .............................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.24-678e011 [2019-11-20 04:45:22,937 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 04:45:22,938 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 04:45:22,953 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 04:45:22,954 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 04:45:22,955 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 04:45:22,956 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 04:45:22,964 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 04:45:22,968 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 04:45:22,972 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 04:45:22,973 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 04:45:22,974 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 04:45:22,974 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 04:45:22,977 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 04:45:22,978 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 04:45:22,979 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 04:45:22,980 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 04:45:22,980 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 04:45:22,982 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 04:45:22,986 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 04:45:22,989 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 04:45:22,991 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 04:45:22,993 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 04:45:22,993 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 04:45:22,996 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 04:45:22,996 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 04:45:22,996 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 04:45:22,997 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 04:45:22,998 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 04:45:22,998 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 04:45:22,999 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 04:45:22,999 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 04:45:23,000 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 04:45:23,001 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 04:45:23,001 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 04:45:23,002 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 04:45:23,002 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 04:45:23,002 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 04:45:23,002 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 04:45:23,003 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 04:45:23,004 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 04:45:23,005 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_83371aa1-ce53-4420-a4a8-cb2d96aa4ee0/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-11-20 04:45:23,028 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 04:45:23,038 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 04:45:23,039 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-20 04:45:23,039 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-20 04:45:23,039 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 04:45:23,039 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 04:45:23,040 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 04:45:23,040 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 04:45:23,040 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 04:45:23,040 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 04:45:23,040 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 04:45:23,041 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 04:45:23,041 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 04:45:23,041 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 04:45:23,041 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 04:45:23,042 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 04:45:23,042 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 04:45:23,042 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 04:45:23,043 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-20 04:45:23,043 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-20 04:45:23,044 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 04:45:23,044 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 04:45:23,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-20 04:45:23,044 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 04:45:23,045 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 04:45:23,045 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 04:45:23,045 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-20 04:45:23,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 04:45:23,045 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 04:45:23,046 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_83371aa1-ce53-4420-a4a8-cb2d96aa4ee0/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(__VERIFIER_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 -> ad4e6ad99a266ddeead98987e8e44db723af5bc7 [2019-11-20 04:45:23,206 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 04:45:23,214 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 04:45:23,216 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 04:45:23,217 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 04:45:23,217 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 04:45:23,218 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_83371aa1-ce53-4420-a4a8-cb2d96aa4ee0/bin/ukojak/../../sv-benchmarks/c/recursive-simple/id_i15_o15-2.c [2019-11-20 04:45:23,285 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_83371aa1-ce53-4420-a4a8-cb2d96aa4ee0/bin/ukojak/data/4c7239e16/10d0af9bf3f449628b1553496c83ed89/FLAG0013d7d45 [2019-11-20 04:45:23,656 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 04:45:23,657 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_83371aa1-ce53-4420-a4a8-cb2d96aa4ee0/sv-benchmarks/c/recursive-simple/id_i15_o15-2.c [2019-11-20 04:45:23,661 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_83371aa1-ce53-4420-a4a8-cb2d96aa4ee0/bin/ukojak/data/4c7239e16/10d0af9bf3f449628b1553496c83ed89/FLAG0013d7d45 [2019-11-20 04:45:23,673 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_83371aa1-ce53-4420-a4a8-cb2d96aa4ee0/bin/ukojak/data/4c7239e16/10d0af9bf3f449628b1553496c83ed89 [2019-11-20 04:45:23,676 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 04:45:23,677 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 04:45:23,678 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 04:45:23,678 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 04:45:23,681 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 04:45:23,682 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:45:23" (1/1) ... [2019-11-20 04:45:23,684 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37ab49c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:45:23, skipping insertion in model container [2019-11-20 04:45:23,685 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:45:23" (1/1) ... [2019-11-20 04:45:23,691 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 04:45:23,705 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 04:45:23,836 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:45:23,840 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 04:45:23,915 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:45:23,929 INFO L192 MainTranslator]: Completed translation [2019-11-20 04:45:23,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:45:23 WrapperNode [2019-11-20 04:45:23,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 04:45:23,931 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 04:45:23,931 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 04:45:23,931 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 04:45:23,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:45:23" (1/1) ... [2019-11-20 04:45:23,946 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:45:23" (1/1) ... [2019-11-20 04:45:23,961 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 04:45:23,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 04:45:23,962 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 04:45:23,963 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 04:45:23,971 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:45:23" (1/1) ... [2019-11-20 04:45:23,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:45:23" (1/1) ... [2019-11-20 04:45:23,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:45:23" (1/1) ... [2019-11-20 04:45:23,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:45:23" (1/1) ... [2019-11-20 04:45:23,974 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:45:23" (1/1) ... [2019-11-20 04:45:23,976 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:45:23" (1/1) ... [2019-11-20 04:45:23,977 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:45:23" (1/1) ... [2019-11-20 04:45:23,978 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 04:45:23,978 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 04:45:23,979 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 04:45:23,979 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 04:45:23,980 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:45:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_83371aa1-ce53-4420-a4a8-cb2d96aa4ee0/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 [2019-11-20 04:45:24,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 04:45:24,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 04:45:24,038 INFO L130 BoogieDeclarations]: Found specification of procedure id [2019-11-20 04:45:24,039 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2019-11-20 04:45:24,210 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 04:45:24,210 INFO L285 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-20 04:45:24,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:45:24 BoogieIcfgContainer [2019-11-20 04:45:24,211 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 04:45:24,212 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-20 04:45:24,212 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-20 04:45:24,222 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-20 04:45:24,222 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:45:24" (1/1) ... [2019-11-20 04:45:24,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:45:24,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 04:45:24,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2019-11-20 04:45:24,260 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2019-11-20 04:45:24,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-20 04:45:24,270 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 04:45:24,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:45:24,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:45:24,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 04:45:24,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 22 transitions. [2019-11-20 04:45:24,686 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2019-11-20 04:45:24,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-20 04:45:24,686 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 04:45:24,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:45:24,835 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 04:45:25,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 04:45:25,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 23 states and 32 transitions. [2019-11-20 04:45:25,220 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 32 transitions. [2019-11-20 04:45:25,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-20 04:45:25,221 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 04:45:25,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:45:25,395 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-11-20 04:45:25,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 04:45:25,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 28 states and 44 transitions. [2019-11-20 04:45:25,944 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 44 transitions. [2019-11-20 04:45:25,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-20 04:45:25,949 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 04:45:25,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:45:26,196 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-11-20 04:45:26,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 04:45:26,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 33 states and 58 transitions. [2019-11-20 04:45:26,777 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 58 transitions. [2019-11-20 04:45:26,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-20 04:45:26,778 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 04:45:26,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:45:27,004 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-11-20 04:45:27,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 04:45:27,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 38 states and 74 transitions. [2019-11-20 04:45:27,540 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 74 transitions. [2019-11-20 04:45:27,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-20 04:45:27,542 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 04:45:27,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:45:27,764 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-11-20 04:45:28,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 04:45:28,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 43 states and 92 transitions. [2019-11-20 04:45:28,359 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 92 transitions. [2019-11-20 04:45:28,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-11-20 04:45:28,361 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 04:45:28,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:45:28,651 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2019-11-20 04:45:29,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 04:45:29,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 48 states and 112 transitions. [2019-11-20 04:45:29,314 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 112 transitions. [2019-11-20 04:45:29,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-11-20 04:45:29,317 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 04:45:29,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:45:29,587 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2019-11-20 04:45:30,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 04:45:30,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 53 states and 134 transitions. [2019-11-20 04:45:30,586 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 134 transitions. [2019-11-20 04:45:30,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-11-20 04:45:30,588 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 04:45:30,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:45:31,029 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-11-20 04:45:32,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 04:45:32,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 58 states and 158 transitions. [2019-11-20 04:45:32,012 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 158 transitions. [2019-11-20 04:45:32,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-11-20 04:45:32,014 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 04:45:32,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:45:32,384 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2019-11-20 04:45:33,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 04:45:33,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 63 states and 184 transitions. [2019-11-20 04:45:33,317 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 184 transitions. [2019-11-20 04:45:33,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-11-20 04:45:33,319 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 04:45:33,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:45:33,721 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2019-11-20 04:45:34,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 04:45:34,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 68 states and 212 transitions. [2019-11-20 04:45:34,849 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 212 transitions. [2019-11-20 04:45:34,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-11-20 04:45:34,851 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 04:45:34,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:45:35,218 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2019-11-20 04:45:36,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 04:45:36,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 73 states and 242 transitions. [2019-11-20 04:45:36,246 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 242 transitions. [2019-11-20 04:45:36,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-11-20 04:45:36,248 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 04:45:36,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:45:36,675 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2019-11-20 04:45:37,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 04:45:37,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 78 states and 274 transitions. [2019-11-20 04:45:37,828 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 274 transitions. [2019-11-20 04:45:37,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-11-20 04:45:37,830 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 04:45:37,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:45:38,293 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2019-11-20 04:45:39,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 04:45:39,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 83 states and 308 transitions. [2019-11-20 04:45:39,433 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 308 transitions. [2019-11-20 04:45:39,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-11-20 04:45:39,435 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 04:45:39,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:45:39,900 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2019-11-20 04:45:41,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 04:45:41,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 88 states and 344 transitions. [2019-11-20 04:45:41,114 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 344 transitions. [2019-11-20 04:45:41,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-11-20 04:45:41,115 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 04:45:41,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:45:41,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:45:41,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:45:41,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:45:41,282 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 16 iterations. [2019-11-20 04:45:41,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 04:45:41 ImpRootNode [2019-11-20 04:45:41,361 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-20 04:45:41,361 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 04:45:41,361 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 04:45:41,362 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 04:45:41,362 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:45:24" (3/4) ... [2019-11-20 04:45:41,364 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-20 04:45:41,456 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_83371aa1-ce53-4420-a4a8-cb2d96aa4ee0/bin/ukojak/witness.graphml [2019-11-20 04:45:41,456 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 04:45:41,463 INFO L168 Benchmark]: Toolchain (without parser) took 17785.99 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 282.6 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -201.3 MB). Peak memory consumption was 81.3 MB. Max. memory is 11.5 GB. [2019-11-20 04:45:41,464 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 966.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:45:41,465 INFO L168 Benchmark]: CACSL2BoogieTranslator took 252.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -193.2 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-11-20 04:45:41,465 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.96 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:45:41,465 INFO L168 Benchmark]: Boogie Preprocessor took 16.04 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:45:41,466 INFO L168 Benchmark]: RCFGBuilder took 233.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-11-20 04:45:41,466 INFO L168 Benchmark]: CodeCheck took 17148.96 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 134.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -36.3 MB). Peak memory consumption was 98.0 MB. Max. memory is 11.5 GB. [2019-11-20 04:45:41,466 INFO L168 Benchmark]: Witness Printer took 100.34 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 11.5 GB. [2019-11-20 04:45:41,470 INFO L335 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. Result: UNSAFE, OverallTime: 17.0s, OverallIterations: 16, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 180224 SDtfs, 131068 SDslu, 163832 SDs, 0 SdLazy, 2129602 SolverSat, 458734 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14327 GetRequests, 13557 SyntacticMatches, 538 SemanticMatches, 232 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20581 ImplicationChecksByTransitivity, 13.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 864 NumberOfCodeBlocks, 864 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 750 ConstructedInterpolants, 0 QuantifiedInterpolants, 171388 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 1 PerfectInterpolantSequences, 1575/3150 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: 13]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L10] int input = 15; [L11] CALL, EXPR id(input) VAL [\old(x)=15] [L5] COND FALSE !(x==0) VAL [\old(x)=15, x=15] [L6] CALL, EXPR id(x-1) VAL [\old(x)=14] [L5] COND FALSE !(x==0) VAL [\old(x)=14, x=14] [L6] CALL, EXPR id(x-1) VAL [\old(x)=13] [L5] COND FALSE !(x==0) VAL [\old(x)=13, x=13] [L6] CALL, EXPR id(x-1) VAL [\old(x)=12] [L5] COND FALSE !(x==0) VAL [\old(x)=12, x=12] [L6] CALL, EXPR id(x-1) VAL [\old(x)=11] [L5] COND FALSE !(x==0) VAL [\old(x)=11, x=11] [L6] CALL, EXPR id(x-1) VAL [\old(x)=10] [L5] COND FALSE !(x==0) VAL [\old(x)=10, x=10] [L6] CALL, EXPR id(x-1) VAL [\old(x)=9] [L5] COND FALSE !(x==0) VAL [\old(x)=9, x=9] [L6] CALL, EXPR id(x-1) VAL [\old(x)=8] [L5] COND FALSE !(x==0) VAL [\old(x)=8, x=8] [L6] CALL, EXPR id(x-1) VAL [\old(x)=7] [L5] COND FALSE !(x==0) VAL [\old(x)=7, x=7] [L6] CALL, EXPR id(x-1) VAL [\old(x)=6] [L5] COND FALSE !(x==0) VAL [\old(x)=6, x=6] [L6] CALL, EXPR id(x-1) VAL [\old(x)=5] [L5] COND FALSE !(x==0) VAL [\old(x)=5, x=5] [L6] CALL, EXPR id(x-1) VAL [\old(x)=4] [L5] COND FALSE !(x==0) VAL [\old(x)=4, x=4] [L6] CALL, EXPR id(x-1) VAL [\old(x)=3] [L5] COND FALSE !(x==0) VAL [\old(x)=3, x=3] [L6] CALL, EXPR id(x-1) VAL [\old(x)=2] [L5] COND FALSE !(x==0) VAL [\old(x)=2, x=2] [L6] CALL, EXPR id(x-1) VAL [\old(x)=1] [L5] COND FALSE !(x==0) VAL [\old(x)=1, x=1] [L6] CALL, EXPR id(x-1) VAL [\old(x)=0] [L5] COND TRUE x==0 [L5] return 0; VAL [\old(x)=0, \result=0, x=0] [L6] RET, EXPR id(x-1) VAL [\old(x)=1, id(x-1)=0, x=1] [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) VAL [\old(x)=2, id(x-1)=1, x=2] [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) VAL [\old(x)=3, id(x-1)=2, x=3] [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) VAL [\old(x)=4, id(x-1)=3, x=4] [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) VAL [\old(x)=5, id(x-1)=4, x=5] [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) VAL [\old(x)=6, id(x-1)=5, x=6] [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) VAL [\old(x)=7, id(x-1)=6, x=7] [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) VAL [\old(x)=8, id(x-1)=7, x=8] [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) VAL [\old(x)=9, id(x-1)=8, x=9] [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) VAL [\old(x)=10, id(x-1)=9, x=10] [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) VAL [\old(x)=11, id(x-1)=10, x=11] [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) VAL [\old(x)=12, id(x-1)=11, x=12] [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) VAL [\old(x)=13, id(x-1)=12, x=13] [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) VAL [\old(x)=14, id(x-1)=13, x=14] [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) VAL [\old(x)=15, id(x-1)=14, x=15] [L6] return id(x-1) + 1; [L11] RET, EXPR id(input) [L11] int result = id(input); [L12] COND TRUE result == 15 [L13] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 966.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 252.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -193.2 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.96 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.04 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 233.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * CodeCheck took 17148.96 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 134.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -36.3 MB). Peak memory consumption was 98.0 MB. Max. memory is 11.5 GB. * Witness Printer took 100.34 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...