./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Ackermann-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928c2305-e799-4aac-80c2-dbe41da34392/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928c2305-e799-4aac-80c2-dbe41da34392/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928c2305-e799-4aac-80c2-dbe41da34392/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928c2305-e799-4aac-80c2-dbe41da34392/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/Ackermann-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928c2305-e799-4aac-80c2-dbe41da34392/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928c2305-e799-4aac-80c2-dbe41da34392/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --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 bfd720405bcb220888936a72c0a56a1f9623ccca41ba023f90ec05bee86a71e5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:48:04,033 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:48:04,100 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928c2305-e799-4aac-80c2-dbe41da34392/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-19 02:48:04,105 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:48:04,105 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:48:04,130 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:48:04,130 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:48:04,131 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:48:04,132 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:48:04,132 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:48:04,133 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:48:04,133 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:48:04,134 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:48:04,135 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:48:04,136 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:48:04,136 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:48:04,140 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:48:04,140 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 02:48:04,141 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 02:48:04,141 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:48:04,142 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:48:04,142 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:48:04,143 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:48:04,143 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:48:04,144 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:48:04,144 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:48:04,145 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:48:04,145 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:48:04,146 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:48:04,146 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:48:04,146 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:48:04,147 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:48:04,147 INFO L153 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_928c2305-e799-4aac-80c2-dbe41da34392/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928c2305-e799-4aac-80c2-dbe41da34392/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfd720405bcb220888936a72c0a56a1f9623ccca41ba023f90ec05bee86a71e5 [2023-11-19 02:48:04,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:48:04,464 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:48:04,467 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:48:04,470 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:48:04,470 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:48:04,471 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928c2305-e799-4aac-80c2-dbe41da34392/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/termination-crafted/Ackermann-1.c [2023-11-19 02:48:07,637 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:48:07,863 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:48:07,864 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928c2305-e799-4aac-80c2-dbe41da34392/sv-benchmarks/c/termination-crafted/Ackermann-1.c [2023-11-19 02:48:07,871 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928c2305-e799-4aac-80c2-dbe41da34392/bin/ukojak-verify-G8NBE6pJGL/data/eb4c2596a/26ba169d2ff243b09bbf61d3c1c1c500/FLAGfe8cdf05d [2023-11-19 02:48:07,885 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928c2305-e799-4aac-80c2-dbe41da34392/bin/ukojak-verify-G8NBE6pJGL/data/eb4c2596a/26ba169d2ff243b09bbf61d3c1c1c500 [2023-11-19 02:48:07,887 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:48:07,888 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:48:07,890 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:48:07,890 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:48:07,895 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:48:07,896 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:48:07" (1/1) ... [2023-11-19 02:48:07,897 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b4779ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:48:07, skipping insertion in model container [2023-11-19 02:48:07,897 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:48:07" (1/1) ... [2023-11-19 02:48:07,917 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:48:08,115 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:48:08,121 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:48:08,138 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:48:08,154 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:48:08,154 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:48:08 WrapperNode [2023-11-19 02:48:08,154 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:48:08,156 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:48:08,156 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:48:08,157 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:48:08,164 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:48:08" (1/1) ... [2023-11-19 02:48:08,169 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:48:08" (1/1) ... [2023-11-19 02:48:08,187 INFO L138 Inliner]: procedures = 5, calls = 6, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2023-11-19 02:48:08,187 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:48:08,188 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:48:08,188 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:48:08,188 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:48:08,197 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:48:08" (1/1) ... [2023-11-19 02:48:08,198 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:48:08" (1/1) ... [2023-11-19 02:48:08,200 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:48:08" (1/1) ... [2023-11-19 02:48:08,201 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:48:08" (1/1) ... [2023-11-19 02:48:08,207 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:48:08" (1/1) ... [2023-11-19 02:48:08,209 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:48:08" (1/1) ... [2023-11-19 02:48:08,210 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:48:08" (1/1) ... [2023-11-19 02:48:08,212 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:48:08" (1/1) ... [2023-11-19 02:48:08,219 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:48:08,220 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:48:08,220 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:48:08,221 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:48:08,222 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:48:08" (1/1) ... [2023-11-19 02:48:08,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:48:08,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928c2305-e799-4aac-80c2-dbe41da34392/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:48:08,258 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928c2305-e799-4aac-80c2-dbe41da34392/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:48:08,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928c2305-e799-4aac-80c2-dbe41da34392/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:48:08,309 INFO L130 BoogieDeclarations]: Found specification of procedure Ack [2023-11-19 02:48:08,309 INFO L138 BoogieDeclarations]: Found implementation of procedure Ack [2023-11-19 02:48:08,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:48:08,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:48:08,378 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:48:08,380 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:48:08,524 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:48:08,538 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:48:08,538 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 02:48:08,546 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:48:08 BoogieIcfgContainer [2023-11-19 02:48:08,546 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:48:08,547 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:48:08,547 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:48:08,558 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:48:08,558 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:48:08" (1/1) ... [2023-11-19 02:48:08,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:48:08,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:48:08,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 33 states and 38 transitions. [2023-11-19 02:48:08,630 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2023-11-19 02:48:08,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 02:48:08,632 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:48:08,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:48:08,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:48:08,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:48:08,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:48:08,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 36 states and 44 transitions. [2023-11-19 02:48:08,978 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2023-11-19 02:48:08,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 02:48:08,978 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:48:08,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:48:08,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:48:08,990 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 02:48:08,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:48:09,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:48:09,026 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 02:48:09,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:48:09,038 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-19 02:48:09,070 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 02:48:09 ImpRootNode [2023-11-19 02:48:09,070 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 02:48:09,071 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 02:48:09,072 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 02:48:09,072 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 02:48:09,073 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:48:08" (3/4) ... [2023-11-19 02:48:09,076 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 02:48:09,136 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928c2305-e799-4aac-80c2-dbe41da34392/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 02:48:09,137 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 02:48:09,138 INFO L158 Benchmark]: Toolchain (without parser) took 1249.36ms. Allocated memory is still 127.9MB. Free memory was 86.0MB in the beginning and 90.4MB in the end (delta: -4.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:48:09,139 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 127.9MB. Free memory was 99.9MB in the beginning and 99.7MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:48:09,140 INFO L158 Benchmark]: CACSL2BoogieTranslator took 265.06ms. Allocated memory is still 127.9MB. Free memory was 86.0MB in the beginning and 76.4MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 02:48:09,140 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.20ms. Allocated memory is still 127.9MB. Free memory was 76.4MB in the beginning and 75.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:48:09,141 INFO L158 Benchmark]: Boogie Preprocessor took 31.29ms. Allocated memory is still 127.9MB. Free memory was 75.1MB in the beginning and 73.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:48:09,144 INFO L158 Benchmark]: RCFGBuilder took 326.10ms. Allocated memory is still 127.9MB. Free memory was 73.9MB in the beginning and 63.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 02:48:09,145 INFO L158 Benchmark]: CodeCheck took 523.72ms. Allocated memory is still 127.9MB. Free memory was 63.1MB in the beginning and 92.4MB in the end (delta: -29.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:48:09,149 INFO L158 Benchmark]: Witness Printer took 65.68ms. Allocated memory is still 127.9MB. Free memory was 91.8MB in the beginning and 90.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:48:09,154 INFO L338 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, 33 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16 IncrementalHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 10 mSDtfsCounter, 16 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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: 10]: integer overflow possible integer overflow possible We found a FailurePath: [L16] int x = __VERIFIER_nondet_int(); [L17] int y = __VERIFIER_nondet_int(); [L18] COND FALSE !(x < 0 || y < 0) VAL [x=0, y=2147483647] [L21] CALL Ack(x, y) VAL [\old(m)=0, \old(n)=2147483647] [L10] COND TRUE m == 0 VAL [\old(m)=0, \old(n)=2147483647, m=0, n=2147483647] [L10] n+1 VAL [\old(m)=0, \old(n)=2147483647, m=0, n=2147483647] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 127.9MB. Free memory was 99.9MB in the beginning and 99.7MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 265.06ms. Allocated memory is still 127.9MB. Free memory was 86.0MB in the beginning and 76.4MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.20ms. Allocated memory is still 127.9MB. Free memory was 76.4MB in the beginning and 75.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 31.29ms. Allocated memory is still 127.9MB. Free memory was 75.1MB in the beginning and 73.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 326.10ms. Allocated memory is still 127.9MB. Free memory was 73.9MB in the beginning and 63.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 523.72ms. Allocated memory is still 127.9MB. Free memory was 63.1MB in the beginning and 92.4MB in the end (delta: -29.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 65.68ms. Allocated memory is still 127.9MB. Free memory was 91.8MB in the beginning and 90.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2023-11-19 02:48:09,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928c2305-e799-4aac-80c2-dbe41da34392/bin/ukojak-verify-G8NBE6pJGL/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)