./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/RecursiveNonterminating-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5430730-5ee3-4ed8-8f3f-1a12f23c0cda/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5430730-5ee3-4ed8-8f3f-1a12f23c0cda/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_a5430730-5ee3-4ed8-8f3f-1a12f23c0cda/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5430730-5ee3-4ed8-8f3f-1a12f23c0cda/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/RecursiveNonterminating-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5430730-5ee3-4ed8-8f3f-1a12f23c0cda/bin/ukojak-92XMlrwhuB/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5430730-5ee3-4ed8-8f3f-1a12f23c0cda/bin/ukojak-92XMlrwhuB --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f8a3a89d23e6eea442350a087b041d706cddc1ad074ca5db49c6b5ba731ff0d3 --- 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 16:56:20,115 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:56:20,118 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:56:20,173 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:56:20,174 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:56:20,178 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:56:20,181 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:56:20,185 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:56:20,188 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:56:20,195 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:56:20,196 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:56:20,199 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:56:20,203 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:56:20,206 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:56:20,208 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:56:20,210 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:56:20,212 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:56:20,213 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:56:20,215 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:56:20,226 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:56:20,228 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:56:20,229 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:56:20,233 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:56:20,235 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:56:20,242 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:56:20,242 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:56:20,242 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:56:20,244 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:56:20,244 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:56:20,245 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:56:20,245 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:56:20,246 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:56:20,247 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:56:20,248 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:56:20,249 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:56:20,249 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:56:20,250 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:56:20,250 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:56:20,251 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:56:20,251 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:56:20,252 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:56:20,253 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5430730-5ee3-4ed8-8f3f-1a12f23c0cda/bin/ukojak-92XMlrwhuB/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-10-17 16:56:20,289 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:56:20,289 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:56:20,290 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:56:20,290 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:56:20,291 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:56:20,291 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:56:20,292 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:56:20,292 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 16:56:20,292 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:56:20,292 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:56:20,293 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:56:20,293 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:56:20,293 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:56:20,293 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-17 16:56:20,294 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:56:20,294 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:56:20,294 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:56:20,294 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:56:20,295 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:56:20,295 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:56:20,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:56:20,298 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:56:20,298 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:56:20,299 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:56:20,299 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:56:20,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:56:20,301 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:56:20,301 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_a5430730-5ee3-4ed8-8f3f-1a12f23c0cda/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5430730-5ee3-4ed8-8f3f-1a12f23c0cda/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f8a3a89d23e6eea442350a087b041d706cddc1ad074ca5db49c6b5ba731ff0d3 [2022-10-17 16:56:20,653 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:56:20,684 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:56:20,688 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:56:20,689 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:56:20,690 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:56:20,692 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5430730-5ee3-4ed8-8f3f-1a12f23c0cda/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/termination-crafted/RecursiveNonterminating-2.c [2022-10-17 16:56:20,778 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5430730-5ee3-4ed8-8f3f-1a12f23c0cda/bin/ukojak-92XMlrwhuB/data/059f9b78d/a4ea695e486142f0bac1179c6ca4c032/FLAGfa3b901b8 [2022-10-17 16:56:21,271 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:56:21,272 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5430730-5ee3-4ed8-8f3f-1a12f23c0cda/sv-benchmarks/c/termination-crafted/RecursiveNonterminating-2.c [2022-10-17 16:56:21,279 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5430730-5ee3-4ed8-8f3f-1a12f23c0cda/bin/ukojak-92XMlrwhuB/data/059f9b78d/a4ea695e486142f0bac1179c6ca4c032/FLAGfa3b901b8 [2022-10-17 16:56:21,640 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5430730-5ee3-4ed8-8f3f-1a12f23c0cda/bin/ukojak-92XMlrwhuB/data/059f9b78d/a4ea695e486142f0bac1179c6ca4c032 [2022-10-17 16:56:21,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:56:21,646 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:56:21,651 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:56:21,652 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:56:21,655 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:56:21,656 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:56:21" (1/1) ... [2022-10-17 16:56:21,657 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@96dfcb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:56:21, skipping insertion in model container [2022-10-17 16:56:21,658 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:56:21" (1/1) ... [2022-10-17 16:56:21,665 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:56:21,680 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:56:21,916 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:56:21,919 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:56:21,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:56:21,940 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:56:21,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:56:21 WrapperNode [2022-10-17 16:56:21,941 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:56:21,942 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:56:21,942 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:56:21,942 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:56:21,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:56:21" (1/1) ... [2022-10-17 16:56:21,955 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:56:21" (1/1) ... [2022-10-17 16:56:21,971 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 10 [2022-10-17 16:56:21,971 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:56:21,972 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:56:21,972 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:56:21,972 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:56:21,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:56:21" (1/1) ... [2022-10-17 16:56:21,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:56:21" (1/1) ... [2022-10-17 16:56:21,982 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:56:21" (1/1) ... [2022-10-17 16:56:21,983 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:56:21" (1/1) ... [2022-10-17 16:56:21,984 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:56:21" (1/1) ... [2022-10-17 16:56:21,986 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:56:21" (1/1) ... [2022-10-17 16:56:21,987 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:56:21" (1/1) ... [2022-10-17 16:56:21,988 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:56:21" (1/1) ... [2022-10-17 16:56:21,989 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:56:21,990 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:56:21,991 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:56:21,991 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:56:21,992 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:56:21" (1/1) ... [2022-10-17 16:56:21,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:56:22,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5430730-5ee3-4ed8-8f3f-1a12f23c0cda/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:56:22,025 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5430730-5ee3-4ed8-8f3f-1a12f23c0cda/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:56:22,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5430730-5ee3-4ed8-8f3f-1a12f23c0cda/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:56:22,077 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2022-10-17 16:56:22,077 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2022-10-17 16:56:22,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:56:22,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:56:22,129 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:56:22,131 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:56:22,251 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:56:22,265 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:56:22,266 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 16:56:22,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:56:22 BoogieIcfgContainer [2022-10-17 16:56:22,268 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:56:22,269 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:56:22,270 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:56:22,294 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:56:22,294 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:56:22" (1/1) ... [2022-10-17 16:56:22,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:56:22,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:56:22,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 25 states and 26 transitions. [2022-10-17 16:56:22,398 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2022-10-17 16:56:22,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-10-17 16:56:22,400 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:56:22,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:56:22,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:56:22,473 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:56:22,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:56:22,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:56:22,506 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:56:22,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:56:22,514 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2022-10-17 16:56:22,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:56:22 ImpRootNode [2022-10-17 16:56:22,537 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:56:22,538 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:56:22,538 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:56:22,538 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:56:22,539 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:56:22" (3/4) ... [2022-10-17 16:56:22,541 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 16:56:22,608 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5430730-5ee3-4ed8-8f3f-1a12f23c0cda/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:56:22,623 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:56:22,625 INFO L158 Benchmark]: Toolchain (without parser) took 977.82ms. Allocated memory is still 102.8MB. Free memory was 60.1MB in the beginning and 56.7MB in the end (delta: 3.4MB). Peak memory consumption was 2.0MB. Max. memory is 16.1GB. [2022-10-17 16:56:22,626 INFO L158 Benchmark]: CDTParser took 1.53ms. Allocated memory is still 102.8MB. Free memory was 76.6MB in the beginning and 76.5MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:56:22,628 INFO L158 Benchmark]: CACSL2BoogieTranslator took 289.80ms. Allocated memory is still 102.8MB. Free memory was 59.9MB in the beginning and 79.7MB in the end (delta: -19.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-10-17 16:56:22,629 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.43ms. Allocated memory is still 102.8MB. Free memory was 79.7MB in the beginning and 78.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:56:22,630 INFO L158 Benchmark]: Boogie Preprocessor took 17.80ms. Allocated memory is still 102.8MB. Free memory was 78.5MB in the beginning and 77.6MB in the end (delta: 876.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:56:22,631 INFO L158 Benchmark]: RCFGBuilder took 278.15ms. Allocated memory is still 102.8MB. Free memory was 77.6MB in the beginning and 67.6MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 16:56:22,633 INFO L158 Benchmark]: CodeCheck took 267.88ms. Allocated memory is still 102.8MB. Free memory was 67.6MB in the beginning and 58.0MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 16:56:22,634 INFO L158 Benchmark]: Witness Printer took 85.56ms. Allocated memory is still 102.8MB. Free memory was 58.0MB in the beginning and 56.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:56:22,642 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, 25 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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: 18]: integer overflow possible integer overflow possible We found a FailurePath: [L17] int n = __VERIFIER_nondet_int(); [L18] n + 1 VAL [n=2147483647] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.53ms. Allocated memory is still 102.8MB. Free memory was 76.6MB in the beginning and 76.5MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 289.80ms. Allocated memory is still 102.8MB. Free memory was 59.9MB in the beginning and 79.7MB in the end (delta: -19.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.43ms. Allocated memory is still 102.8MB. Free memory was 79.7MB in the beginning and 78.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.80ms. Allocated memory is still 102.8MB. Free memory was 78.5MB in the beginning and 77.6MB in the end (delta: 876.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 278.15ms. Allocated memory is still 102.8MB. Free memory was 77.6MB in the beginning and 67.6MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 267.88ms. Allocated memory is still 102.8MB. Free memory was 67.6MB in the beginning and 58.0MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 85.56ms. Allocated memory is still 102.8MB. Free memory was 58.0MB in the beginning and 56.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-10-17 16:56:22,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5430730-5ee3-4ed8-8f3f-1a12f23c0cda/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(OVERFLOW)