./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id_o10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c437a84-ba79-476c-8f11-1982edfc2da9/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c437a84-ba79-476c-8f11-1982edfc2da9/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c437a84-ba79-476c-8f11-1982edfc2da9/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c437a84-ba79-476c-8f11-1982edfc2da9/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_o10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c437a84-ba79-476c-8f11-1982edfc2da9/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c437a84-ba79-476c-8f11-1982edfc2da9/bin/ukojak-92XMlrwhuB --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 4bb99911cbd112fadfd665fb729cfe0ed3dacf957fcff0e177d295c79af00a62 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 16:52:38,022 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:52:38,025 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:52:38,077 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:52:38,077 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:52:38,085 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:52:38,087 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:52:38,093 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:52:38,095 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:52:38,101 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:52:38,105 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:52:38,107 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:52:38,107 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:52:38,109 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:52:38,110 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:52:38,111 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:52:38,112 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:52:38,116 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:52:38,118 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:52:38,126 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:52:38,128 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:52:38,130 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:52:38,134 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:52:38,135 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:52:38,145 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:52:38,145 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:52:38,146 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:52:38,148 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:52:38,149 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:52:38,150 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:52:38,150 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:52:38,151 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:52:38,153 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:52:38,155 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:52:38,157 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:52:38,157 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:52:38,159 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:52:38,159 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:52:38,159 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:52:38,160 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:52:38,161 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:52:38,163 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c437a84-ba79-476c-8f11-1982edfc2da9/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:52:38,187 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:52:38,187 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:52:38,188 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:52:38,189 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:52:38,189 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:52:38,190 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:52:38,190 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:52:38,190 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:52:38,190 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:52:38,191 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:52:38,191 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:52:38,191 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:52:38,191 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:52:38,191 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:52:38,192 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:52:38,192 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:52:38,192 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:52:38,192 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:52:38,193 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:52:38,193 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:52:38,193 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:52:38,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:52:38,194 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:52:38,194 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:52:38,194 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:52:38,194 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:52:38,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:52:38,195 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:52:38,195 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c437a84-ba79-476c-8f11-1982edfc2da9/bin/ukojak-92XMlrwhuB/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c437a84-ba79-476c-8f11-1982edfc2da9/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4bb99911cbd112fadfd665fb729cfe0ed3dacf957fcff0e177d295c79af00a62 [2022-10-17 16:52:38,516 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:52:38,542 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:52:38,545 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:52:38,546 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:52:38,548 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:52:38,551 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c437a84-ba79-476c-8f11-1982edfc2da9/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/recursive-simple/id_o10.c [2022-10-17 16:52:38,634 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c437a84-ba79-476c-8f11-1982edfc2da9/bin/ukojak-92XMlrwhuB/data/841d85a51/e247d3b9b519476dacbdef763fcc9123/FLAGd90092b93 [2022-10-17 16:52:39,169 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:52:39,170 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c437a84-ba79-476c-8f11-1982edfc2da9/sv-benchmarks/c/recursive-simple/id_o10.c [2022-10-17 16:52:39,176 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c437a84-ba79-476c-8f11-1982edfc2da9/bin/ukojak-92XMlrwhuB/data/841d85a51/e247d3b9b519476dacbdef763fcc9123/FLAGd90092b93 [2022-10-17 16:52:39,547 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c437a84-ba79-476c-8f11-1982edfc2da9/bin/ukojak-92XMlrwhuB/data/841d85a51/e247d3b9b519476dacbdef763fcc9123 [2022-10-17 16:52:39,552 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:52:39,555 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:52:39,561 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:52:39,561 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:52:39,564 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:52:39,566 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:52:39" (1/1) ... [2022-10-17 16:52:39,568 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@208c7b7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:52:39, skipping insertion in model container [2022-10-17 16:52:39,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:52:39" (1/1) ... [2022-10-17 16:52:39,576 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:52:39,591 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:52:39,814 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c437a84-ba79-476c-8f11-1982edfc2da9/sv-benchmarks/c/recursive-simple/id_o10.c[516,529] [2022-10-17 16:52:39,817 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:52:39,826 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:52:39,840 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c437a84-ba79-476c-8f11-1982edfc2da9/sv-benchmarks/c/recursive-simple/id_o10.c[516,529] [2022-10-17 16:52:39,840 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:52:39,854 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:52:39,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:52:39 WrapperNode [2022-10-17 16:52:39,855 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:52:39,856 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:52:39,856 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:52:39,857 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:52:39,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:52:39" (1/1) ... [2022-10-17 16:52:39,877 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:52:39" (1/1) ... [2022-10-17 16:52:39,896 INFO L138 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2022-10-17 16:52:39,897 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:52:39,898 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:52:39,898 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:52:39,899 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:52:39,908 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:52:39" (1/1) ... [2022-10-17 16:52:39,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:52:39" (1/1) ... [2022-10-17 16:52:39,910 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:52:39" (1/1) ... [2022-10-17 16:52:39,911 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:52:39" (1/1) ... [2022-10-17 16:52:39,914 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:52:39" (1/1) ... [2022-10-17 16:52:39,916 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:52:39" (1/1) ... [2022-10-17 16:52:39,917 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:52:39" (1/1) ... [2022-10-17 16:52:39,919 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:52:39" (1/1) ... [2022-10-17 16:52:39,927 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:52:39,928 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:52:39,929 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:52:39,929 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:52:39,930 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:52:39" (1/1) ... [2022-10-17 16:52:39,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:52:39,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c437a84-ba79-476c-8f11-1982edfc2da9/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:52:39,966 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c437a84-ba79-476c-8f11-1982edfc2da9/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:52:39,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c437a84-ba79-476c-8f11-1982edfc2da9/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:52:40,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:52:40,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:52:40,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:52:40,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:52:40,032 INFO L130 BoogieDeclarations]: Found specification of procedure id [2022-10-17 16:52:40,032 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2022-10-17 16:52:40,100 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:52:40,103 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:52:40,219 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:52:40,234 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:52:40,234 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 16:52:40,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:52:40 BoogieIcfgContainer [2022-10-17 16:52:40,237 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:52:40,238 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:52:40,238 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:52:40,248 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:52:40,249 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:52:40" (1/1) ... [2022-10-17 16:52:40,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:52:40,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:52:40,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2022-10-17 16:52:40,320 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-10-17 16:52:40,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 16:52:40,324 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:52:40,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:52:40,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:52:40,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:52:40,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:52:40,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2022-10-17 16:52:40,740 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2022-10-17 16:52:40,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-17 16:52:40,741 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:52:40,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:52:40,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:52:41,011 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 16:52:41,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:52:41,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 23 states and 27 transitions. [2022-10-17 16:52:41,335 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2022-10-17 16:52:41,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-17 16:52:41,337 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:52:41,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:52:41,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:52:41,703 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-17 16:52:42,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:52:42,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 28 states and 33 transitions. [2022-10-17 16:52:42,102 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2022-10-17 16:52:42,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-17 16:52:42,103 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:52:42,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:52:42,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:52:42,382 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-17 16:52:42,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:52:42,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 33 states and 39 transitions. [2022-10-17 16:52:42,915 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2022-10-17 16:52:42,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-17 16:52:42,917 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:52:42,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:52:42,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:52:43,276 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-17 16:52:44,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:52:44,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 38 states and 45 transitions. [2022-10-17 16:52:44,011 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2022-10-17 16:52:44,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-17 16:52:44,012 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:52:44,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:52:44,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:52:44,469 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-17 16:52:45,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:52:45,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 43 states and 51 transitions. [2022-10-17 16:52:45,294 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions. [2022-10-17 16:52:45,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-10-17 16:52:45,296 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:52:45,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:52:45,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:52:45,692 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-10-17 16:52:46,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:52:46,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 48 states and 57 transitions. [2022-10-17 16:52:46,650 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 57 transitions. [2022-10-17 16:52:46,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-17 16:52:46,653 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:52:46,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:52:46,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:52:47,210 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2022-10-17 16:52:48,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:52:48,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 53 states and 63 transitions. [2022-10-17 16:52:48,285 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 63 transitions. [2022-10-17 16:52:48,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-17 16:52:48,287 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:52:48,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:52:48,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:52:48,803 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-10-17 16:52:50,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:52:50,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 58 states and 69 transitions. [2022-10-17 16:52:50,175 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 69 transitions. [2022-10-17 16:52:50,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-10-17 16:52:50,176 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:52:50,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:52:50,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:52:50,828 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-10-17 16:52:52,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:52:52,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 63 states and 75 transitions. [2022-10-17 16:52:52,315 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 75 transitions. [2022-10-17 16:52:52,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-10-17 16:52:52,317 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:52:52,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:52:52,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:52:52,388 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:52:52,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:52:52,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:52:52,562 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:52:52,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:52:52,633 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 11 iterations. [2022-10-17 16:52:52,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:52:52 ImpRootNode [2022-10-17 16:52:52,676 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:52:52,677 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:52:52,677 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:52:52,677 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:52:52,678 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:52:40" (3/4) ... [2022-10-17 16:52:52,679 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 16:52:52,745 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c437a84-ba79-476c-8f11-1982edfc2da9/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:52:52,746 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:52:52,747 INFO L158 Benchmark]: Toolchain (without parser) took 13191.25ms. Allocated memory was 123.7MB in the beginning and 226.5MB in the end (delta: 102.8MB). Free memory was 85.1MB in the beginning and 156.7MB in the end (delta: -71.6MB). Peak memory consumption was 32.2MB. Max. memory is 16.1GB. [2022-10-17 16:52:52,748 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 123.7MB. Free memory is still 101.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:52:52,749 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.60ms. Allocated memory is still 123.7MB. Free memory was 84.9MB in the beginning and 98.6MB in the end (delta: -13.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-10-17 16:52:52,750 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.27ms. Allocated memory is still 123.7MB. Free memory was 98.6MB in the beginning and 97.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:52:52,751 INFO L158 Benchmark]: Boogie Preprocessor took 29.01ms. Allocated memory is still 123.7MB. Free memory was 97.0MB in the beginning and 96.1MB in the end (delta: 874.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:52:52,751 INFO L158 Benchmark]: RCFGBuilder took 308.72ms. Allocated memory is still 123.7MB. Free memory was 96.1MB in the beginning and 86.6MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 16:52:52,753 INFO L158 Benchmark]: CodeCheck took 12438.59ms. Allocated memory was 123.7MB in the beginning and 226.5MB in the end (delta: 102.8MB). Free memory was 86.6MB in the beginning and 159.8MB in the end (delta: -73.2MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2022-10-17 16:52:52,753 INFO L158 Benchmark]: Witness Printer took 68.99ms. Allocated memory is still 226.5MB. Free memory was 159.8MB in the beginning and 156.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-10-17 16:52:52,759 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.4s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 294 SdHoareTripleChecker+Valid, 2.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 110 mSDsluCounter, 330 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 200 mSDsCounter, 510 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1030 IncrementalHoareTripleChecker+Invalid, 1540 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 510 mSolverCounterUnsat, 130 mSDtfsCounter, 1030 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2080 GetRequests, 1832 SyntacticMatches, 100 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7585 ImplicationChecksByTransitivity, 8.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 429 NumberOfCodeBlocks, 429 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 350 ConstructedInterpolants, 0 QuantifiedInterpolants, 1321 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 450/900 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L12] unsigned int input = __VERIFIER_nondet_uint(); [L13] CALL, EXPR id(input) VAL [\old(x)=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; [L13] RET, EXPR id(input) VAL [id(input)=10, input=10] [L13] unsigned int result = id(input); [L14] COND TRUE result == 10 VAL [input=10, result=10] [L15] reach_error() VAL [input=10, result=10] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 123.7MB. Free memory is still 101.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 294.60ms. Allocated memory is still 123.7MB. Free memory was 84.9MB in the beginning and 98.6MB in the end (delta: -13.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.27ms. Allocated memory is still 123.7MB. Free memory was 98.6MB in the beginning and 97.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.01ms. Allocated memory is still 123.7MB. Free memory was 97.0MB in the beginning and 96.1MB in the end (delta: 874.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 308.72ms. Allocated memory is still 123.7MB. Free memory was 96.1MB in the beginning and 86.6MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 12438.59ms. Allocated memory was 123.7MB in the beginning and 226.5MB in the end (delta: 102.8MB). Free memory was 86.6MB in the beginning and 159.8MB in the end (delta: -73.2MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. * Witness Printer took 68.99ms. Allocated memory is still 226.5MB. Free memory was 159.8MB in the beginning and 156.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-10-17 16:52:52,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c437a84-ba79-476c-8f11-1982edfc2da9/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE