./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-15/cstrspn_diffterm_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f077b11-8f4d-4f45-9c6c-5aac0cf19702/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f077b11-8f4d-4f45-9c6c-5aac0cf19702/bin/ukojak-pZX7IvK2PQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f077b11-8f4d-4f45-9c6c-5aac0cf19702/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f077b11-8f4d-4f45-9c6c-5aac0cf19702/bin/ukojak-pZX7IvK2PQ/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-15/cstrspn_diffterm_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f077b11-8f4d-4f45-9c6c-5aac0cf19702/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f077b11-8f4d-4f45-9c6c-5aac0cf19702/bin/ukojak-pZX7IvK2PQ --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 0942d3c46657b9d8ac8f8537aec24fbcc2f0b19e897472dc297ad201df07c1bb --- 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-6b4ec56 [2022-11-20 17:40:05,334 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 17:40:05,336 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 17:40:05,377 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 17:40:05,378 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 17:40:05,382 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 17:40:05,384 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 17:40:05,387 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 17:40:05,390 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 17:40:05,395 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 17:40:05,397 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 17:40:05,399 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 17:40:05,400 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 17:40:05,402 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 17:40:05,404 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 17:40:05,408 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 17:40:05,409 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 17:40:05,410 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 17:40:05,412 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 17:40:05,418 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 17:40:05,420 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 17:40:05,422 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 17:40:05,424 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 17:40:05,425 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 17:40:05,434 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 17:40:05,435 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 17:40:05,436 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 17:40:05,437 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 17:40:05,438 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 17:40:05,440 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 17:40:05,440 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 17:40:05,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 17:40:05,444 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 17:40:05,445 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 17:40:05,446 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 17:40:05,447 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 17:40:05,447 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 17:40:05,448 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 17:40:05,448 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 17:40:05,450 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 17:40:05,450 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 17:40:05,451 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f077b11-8f4d-4f45-9c6c-5aac0cf19702/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-20 17:40:05,491 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 17:40:05,492 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 17:40:05,493 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 17:40:05,493 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 17:40:05,494 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 17:40:05,495 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 17:40:05,495 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 17:40:05,495 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 17:40:05,495 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 17:40:05,496 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 17:40:05,497 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 17:40:05,497 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 17:40:05,497 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 17:40:05,498 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 17:40:05,498 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 17:40:05,498 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 17:40:05,499 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 17:40:05,499 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 17:40:05,499 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 17:40:05,499 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 17:40:05,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 17:40:05,500 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 17:40:05,500 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 17:40:05,501 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 17:40:05,501 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-20 17:40:05,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 17:40:05,501 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 17:40:05,502 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_7f077b11-8f4d-4f45-9c6c-5aac0cf19702/bin/ukojak-pZX7IvK2PQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f077b11-8f4d-4f45-9c6c-5aac0cf19702/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0942d3c46657b9d8ac8f8537aec24fbcc2f0b19e897472dc297ad201df07c1bb [2022-11-20 17:40:05,828 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 17:40:05,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 17:40:05,868 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 17:40:05,870 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 17:40:05,870 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 17:40:05,872 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f077b11-8f4d-4f45-9c6c-5aac0cf19702/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/termination-15/cstrspn_diffterm_alloca.i [2022-11-20 17:40:08,969 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 17:40:09,245 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 17:40:09,246 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f077b11-8f4d-4f45-9c6c-5aac0cf19702/sv-benchmarks/c/termination-15/cstrspn_diffterm_alloca.i [2022-11-20 17:40:09,276 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f077b11-8f4d-4f45-9c6c-5aac0cf19702/bin/ukojak-pZX7IvK2PQ/data/53a9528a9/f3b5d7aaa6964444937bd4f001a20697/FLAG2d364c196 [2022-11-20 17:40:09,305 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f077b11-8f4d-4f45-9c6c-5aac0cf19702/bin/ukojak-pZX7IvK2PQ/data/53a9528a9/f3b5d7aaa6964444937bd4f001a20697 [2022-11-20 17:40:09,308 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 17:40:09,310 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 17:40:09,313 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 17:40:09,313 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 17:40:09,316 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 17:40:09,317 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:40:09" (1/1) ... [2022-11-20 17:40:09,318 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76855e68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:40:09, skipping insertion in model container [2022-11-20 17:40:09,319 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:40:09" (1/1) ... [2022-11-20 17:40:09,327 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 17:40:09,376 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 17:40:09,775 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 17:40:09,786 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 17:40:09,836 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 17:40:09,868 INFO L208 MainTranslator]: Completed translation [2022-11-20 17:40:09,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:40:09 WrapperNode [2022-11-20 17:40:09,868 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 17:40:09,869 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 17:40:09,870 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 17:40:09,870 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 17:40:09,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:40:09" (1/1) ... [2022-11-20 17:40:09,888 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:40:09" (1/1) ... [2022-11-20 17:40:09,920 INFO L138 Inliner]: procedures = 152, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 84 [2022-11-20 17:40:09,921 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 17:40:09,922 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 17:40:09,922 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 17:40:09,922 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 17:40:09,932 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:40:09" (1/1) ... [2022-11-20 17:40:09,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:40:09" (1/1) ... [2022-11-20 17:40:09,947 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:40:09" (1/1) ... [2022-11-20 17:40:09,948 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:40:09" (1/1) ... [2022-11-20 17:40:09,954 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:40:09" (1/1) ... [2022-11-20 17:40:09,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:40:09" (1/1) ... [2022-11-20 17:40:09,964 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:40:09" (1/1) ... [2022-11-20 17:40:09,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:40:09" (1/1) ... [2022-11-20 17:40:09,971 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 17:40:09,972 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 17:40:09,972 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 17:40:09,972 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 17:40:09,973 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:40:09" (1/1) ... [2022-11-20 17:40:09,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 17:40:09,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f077b11-8f4d-4f45-9c6c-5aac0cf19702/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 17:40:10,009 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f077b11-8f4d-4f45-9c6c-5aac0cf19702/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 17:40:10,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f077b11-8f4d-4f45-9c6c-5aac0cf19702/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 17:40:10,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 17:40:10,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 17:40:10,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 17:40:10,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 17:40:10,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 17:40:10,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 17:40:10,135 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 17:40:10,137 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 17:40:10,424 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 17:40:10,492 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 17:40:10,493 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 17:40:10,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:40:10 BoogieIcfgContainer [2022-11-20 17:40:10,496 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 17:40:10,497 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-20 17:40:10,497 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-20 17:40:10,505 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-20 17:40:10,505 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:40:10" (1/1) ... [2022-11-20 17:40:10,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 17:40:10,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:40:10,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2022-11-20 17:40:10,568 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2022-11-20 17:40:10,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-20 17:40:10,571 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:40:10,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:40:10,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:40:10,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 17:40:10,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:40:10,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2022-11-20 17:40:10,859 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2022-11-20 17:40:10,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-20 17:40:10,860 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:40:10,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:40:10,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:40:10,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 17:40:11,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:40:11,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 20 transitions. [2022-11-20 17:40:11,056 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2022-11-20 17:40:11,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-20 17:40:11,056 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:40:11,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:40:11,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:40:11,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 17:40:11,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:40:11,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2022-11-20 17:40:11,354 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2022-11-20 17:40:11,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 17:40:11,354 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:40:11,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:40:11,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:40:11,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 17:40:11,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:40:11,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2022-11-20 17:40:11,725 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2022-11-20 17:40:11,725 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 17:40:11,726 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2022-11-20 17:40:11,736 INFO L754 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2022-11-20 17:40:11,763 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 17:40:11,767 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 17:40:11,768 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 17:40:11,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 05:40:11 ImpRootNode [2022-11-20 17:40:11,768 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-20 17:40:11,769 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 17:40:11,769 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 17:40:11,770 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 17:40:11,770 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:40:10" (3/4) ... [2022-11-20 17:40:11,773 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 17:40:11,783 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-11-20 17:40:11,784 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-20 17:40:11,784 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 17:40:11,784 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 17:40:11,834 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f077b11-8f4d-4f45-9c6c-5aac0cf19702/bin/ukojak-pZX7IvK2PQ/witness.graphml [2022-11-20 17:40:11,839 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 17:40:11,840 INFO L158 Benchmark]: Toolchain (without parser) took 2529.95ms. Allocated memory is still 161.5MB. Free memory was 133.6MB in the beginning and 127.1MB in the end (delta: 6.5MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2022-11-20 17:40:11,842 INFO L158 Benchmark]: CDTParser took 0.56ms. Allocated memory is still 121.6MB. Free memory is still 89.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 17:40:11,846 INFO L158 Benchmark]: CACSL2BoogieTranslator took 556.10ms. Allocated memory is still 161.5MB. Free memory was 132.9MB in the beginning and 116.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-20 17:40:11,846 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.52ms. Allocated memory is still 161.5MB. Free memory was 115.4MB in the beginning and 114.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 17:40:11,847 INFO L158 Benchmark]: Boogie Preprocessor took 49.36ms. Allocated memory is still 161.5MB. Free memory was 114.0MB in the beginning and 111.9MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 17:40:11,847 INFO L158 Benchmark]: RCFGBuilder took 524.13ms. Allocated memory is still 161.5MB. Free memory was 111.9MB in the beginning and 95.8MB in the end (delta: 16.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 17:40:11,847 INFO L158 Benchmark]: CodeCheck took 1272.06ms. Allocated memory is still 161.5MB. Free memory was 95.1MB in the beginning and 129.2MB in the end (delta: -34.0MB). Peak memory consumption was 60.1MB. Max. memory is 16.1GB. [2022-11-20 17:40:11,848 INFO L158 Benchmark]: Witness Printer took 70.09ms. Allocated memory is still 161.5MB. Free memory was 129.2MB in the beginning and 127.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 17:40:11,849 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 1 procedures, 18 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 96 IncrementalHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 0 mSDtfsCounter, 96 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 30 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 - PositiveResult [Line: 390]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 390]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 391]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 391]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 372]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 369]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 364]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56ms. Allocated memory is still 121.6MB. Free memory is still 89.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 556.10ms. Allocated memory is still 161.5MB. Free memory was 132.9MB in the beginning and 116.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.52ms. Allocated memory is still 161.5MB. Free memory was 115.4MB in the beginning and 114.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 49.36ms. Allocated memory is still 161.5MB. Free memory was 114.0MB in the beginning and 111.9MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 524.13ms. Allocated memory is still 161.5MB. Free memory was 111.9MB in the beginning and 95.8MB in the end (delta: 16.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 1272.06ms. Allocated memory is still 161.5MB. Free memory was 95.1MB in the beginning and 129.2MB in the end (delta: -34.0MB). Peak memory consumption was 60.1MB. Max. memory is 16.1GB. * Witness Printer took 70.09ms. Allocated memory is still 161.5MB. Free memory was 129.2MB in the beginning and 127.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-11-20 17:40:11,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f077b11-8f4d-4f45-9c6c-5aac0cf19702/bin/ukojak-pZX7IvK2PQ/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 Result: TRUE