./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive/EvenOdd03WithOverflowBug.c --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_727bc2a1-4ac0-4328-926f-8e74489e5b6d/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727bc2a1-4ac0-4328-926f-8e74489e5b6d/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_727bc2a1-4ac0-4328-926f-8e74489e5b6d/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727bc2a1-4ac0-4328-926f-8e74489e5b6d/bin/ukojak-pZX7IvK2PQ/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive/EvenOdd03WithOverflowBug.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727bc2a1-4ac0-4328-926f-8e74489e5b6d/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727bc2a1-4ac0-4328-926f-8e74489e5b6d/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 32bit --witnessprinter.graph.data.programhash 04682225c8f8ef1d718e2eff7a5dbc28147daac3b8dcdca523479af4f0e32241 --- 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 17:54:46,527 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 17:54:46,530 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 17:54:46,571 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 17:54:46,572 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 17:54:46,576 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 17:54:46,578 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 17:54:46,581 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 17:54:46,583 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 17:54:46,589 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 17:54:46,590 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 17:54:46,593 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 17:54:46,593 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 17:54:46,595 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 17:54:46,597 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 17:54:46,599 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 17:54:46,600 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 17:54:46,601 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 17:54:46,603 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 17:54:46,609 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 17:54:46,611 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 17:54:46,613 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 17:54:46,614 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 17:54:46,615 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 17:54:46,625 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 17:54:46,626 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 17:54:46,626 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 17:54:46,628 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 17:54:46,629 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 17:54:46,630 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 17:54:46,631 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 17:54:46,632 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 17:54:46,634 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 17:54:46,635 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 17:54:46,636 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 17:54:46,636 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 17:54:46,637 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 17:54:46,637 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 17:54:46,638 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 17:54:46,639 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 17:54:46,639 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 17:54:46,640 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727bc2a1-4ac0-4328-926f-8e74489e5b6d/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-32bit-Kojak_Default.epf [2022-11-20 17:54:46,681 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 17:54:46,681 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 17:54:46,682 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 17:54:46,683 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 17:54:46,683 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 17:54:46,684 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 17:54:46,684 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 17:54:46,684 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 17:54:46,684 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 17:54:46,685 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 17:54:46,686 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 17:54:46,686 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 17:54:46,686 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 17:54:46,686 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 17:54:46,687 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 17:54:46,687 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 17:54:46,687 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 17:54:46,687 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 17:54:46,688 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 17:54:46,688 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 17:54:46,688 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 17:54:46,688 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 17:54:46,689 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 17:54:46,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 17:54:46,689 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 17:54:46,689 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 17:54:46,690 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 17:54:46,690 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-20 17:54:46,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 17:54:46,690 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 17:54:46,690 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_727bc2a1-4ac0-4328-926f-8e74489e5b6d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727bc2a1-4ac0-4328-926f-8e74489e5b6d/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 04682225c8f8ef1d718e2eff7a5dbc28147daac3b8dcdca523479af4f0e32241 [2022-11-20 17:54:46,984 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 17:54:47,013 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 17:54:47,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 17:54:47,018 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 17:54:47,019 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 17:54:47,020 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727bc2a1-4ac0-4328-926f-8e74489e5b6d/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/recursive/EvenOdd03WithOverflowBug.c [2022-11-20 17:54:50,049 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 17:54:50,249 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 17:54:50,250 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727bc2a1-4ac0-4328-926f-8e74489e5b6d/sv-benchmarks/c/recursive/EvenOdd03WithOverflowBug.c [2022-11-20 17:54:50,256 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727bc2a1-4ac0-4328-926f-8e74489e5b6d/bin/ukojak-pZX7IvK2PQ/data/155c6052b/ef0cb3f576504332b1b8cab4908e8d92/FLAGd49ce3b2d [2022-11-20 17:54:50,275 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727bc2a1-4ac0-4328-926f-8e74489e5b6d/bin/ukojak-pZX7IvK2PQ/data/155c6052b/ef0cb3f576504332b1b8cab4908e8d92 [2022-11-20 17:54:50,277 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 17:54:50,280 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 17:54:50,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 17:54:50,283 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 17:54:50,288 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 17:54:50,289 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:54:50" (1/1) ... [2022-11-20 17:54:50,290 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fcb40cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:54:50, skipping insertion in model container [2022-11-20 17:54:50,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:54:50" (1/1) ... [2022-11-20 17:54:50,297 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 17:54:50,311 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 17:54:50,448 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727bc2a1-4ac0-4328-926f-8e74489e5b6d/sv-benchmarks/c/recursive/EvenOdd03WithOverflowBug.c[948,961] [2022-11-20 17:54:50,449 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 17:54:50,459 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 17:54:50,475 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727bc2a1-4ac0-4328-926f-8e74489e5b6d/sv-benchmarks/c/recursive/EvenOdd03WithOverflowBug.c[948,961] [2022-11-20 17:54:50,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 17:54:50,487 INFO L208 MainTranslator]: Completed translation [2022-11-20 17:54:50,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:54:50 WrapperNode [2022-11-20 17:54:50,487 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 17:54:50,488 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 17:54:50,489 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 17:54:50,489 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 17:54:50,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:54:50" (1/1) ... [2022-11-20 17:54:50,502 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:54:50" (1/1) ... [2022-11-20 17:54:50,515 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2022-11-20 17:54:50,516 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 17:54:50,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 17:54:50,517 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 17:54:50,517 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 17:54:50,526 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:54:50" (1/1) ... [2022-11-20 17:54:50,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:54:50" (1/1) ... [2022-11-20 17:54:50,534 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:54:50" (1/1) ... [2022-11-20 17:54:50,535 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:54:50" (1/1) ... [2022-11-20 17:54:50,537 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:54:50" (1/1) ... [2022-11-20 17:54:50,540 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:54:50" (1/1) ... [2022-11-20 17:54:50,541 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:54:50" (1/1) ... [2022-11-20 17:54:50,547 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:54:50" (1/1) ... [2022-11-20 17:54:50,548 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 17:54:50,549 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 17:54:50,550 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 17:54:50,550 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 17:54:50,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:54:50" (1/1) ... [2022-11-20 17:54:50,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 17:54:50,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727bc2a1-4ac0-4328-926f-8e74489e5b6d/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 17:54:50,584 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727bc2a1-4ac0-4328-926f-8e74489e5b6d/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 17:54:50,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727bc2a1-4ac0-4328-926f-8e74489e5b6d/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 17:54:50,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 17:54:50,624 INFO L130 BoogieDeclarations]: Found specification of procedure isEven [2022-11-20 17:54:50,624 INFO L138 BoogieDeclarations]: Found implementation of procedure isEven [2022-11-20 17:54:50,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 17:54:50,624 INFO L130 BoogieDeclarations]: Found specification of procedure isOdd [2022-11-20 17:54:50,625 INFO L138 BoogieDeclarations]: Found implementation of procedure isOdd [2022-11-20 17:54:50,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 17:54:50,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 17:54:50,687 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 17:54:50,689 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 17:54:50,832 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 17:54:50,905 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 17:54:50,905 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 17:54:50,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:54:50 BoogieIcfgContainer [2022-11-20 17:54:50,907 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 17:54:50,908 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-20 17:54:50,908 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-20 17:54:50,934 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-20 17:54:50,935 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:54:50" (1/1) ... [2022-11-20 17:54:50,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 17:54:51,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:54:51,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 26 states and 30 transitions. [2022-11-20 17:54:51,042 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2022-11-20 17:54:51,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 17:54:51,047 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:54:51,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:54:51,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:54:51,348 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 17:54:51,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:54:51,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 30 states and 35 transitions. [2022-11-20 17:54:51,480 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2022-11-20 17:54:51,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 17:54:51,481 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:54:51,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:54:51,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 17:54:51,493 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 17:54:51,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 17:54:51,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 17:54:51,534 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 17:54:51,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 17:54:51,551 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2022-11-20 17:54:51,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 05:54:51 ImpRootNode [2022-11-20 17:54:51,583 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-20 17:54:51,586 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 17:54:51,586 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 17:54:51,587 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 17:54:51,587 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:54:50" (3/4) ... [2022-11-20 17:54:51,590 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-20 17:54:51,621 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727bc2a1-4ac0-4328-926f-8e74489e5b6d/bin/ukojak-pZX7IvK2PQ/witness.graphml [2022-11-20 17:54:51,621 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 17:54:51,622 INFO L158 Benchmark]: Toolchain (without parser) took 1342.65ms. Allocated memory is still 169.9MB. Free memory was 125.0MB in the beginning and 79.4MB in the end (delta: 45.6MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2022-11-20 17:54:51,623 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 134.2MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 17:54:51,624 INFO L158 Benchmark]: CACSL2BoogieTranslator took 204.41ms. Allocated memory is still 169.9MB. Free memory was 125.0MB in the beginning and 115.1MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 17:54:51,624 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.51ms. Allocated memory is still 169.9MB. Free memory was 115.1MB in the beginning and 113.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 17:54:51,625 INFO L158 Benchmark]: Boogie Preprocessor took 32.18ms. Allocated memory is still 169.9MB. Free memory was 113.5MB in the beginning and 112.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 17:54:51,626 INFO L158 Benchmark]: RCFGBuilder took 358.26ms. Allocated memory is still 169.9MB. Free memory was 112.4MB in the beginning and 100.4MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 17:54:51,627 INFO L158 Benchmark]: CodeCheck took 674.81ms. Allocated memory is still 169.9MB. Free memory was 100.4MB in the beginning and 81.0MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-20 17:54:51,627 INFO L158 Benchmark]: Witness Printer took 35.92ms. Allocated memory is still 169.9MB. Free memory was 81.0MB in the beginning and 79.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 17:54:51,630 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 3 procedures, 26 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 4 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 40 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, 0.2s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 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: 34]: integer overflow possible integer overflow possible We found a FailurePath: [L40] int n = __VERIFIER_nondet_int(); [L41] CALL isEven(n) VAL [\old(n)=-2147483648] [L29] COND FALSE !(n == 0) VAL [\old(n)=-2147483648, n=-2147483648] [L31] COND FALSE !(n == 1) VAL [\old(n)=-2147483648, n=-2147483648] [L34] n - 1 VAL [\old(n)=-2147483648, n=-2147483648] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 134.2MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 204.41ms. Allocated memory is still 169.9MB. Free memory was 125.0MB in the beginning and 115.1MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.51ms. Allocated memory is still 169.9MB. Free memory was 115.1MB in the beginning and 113.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.18ms. Allocated memory is still 169.9MB. Free memory was 113.5MB in the beginning and 112.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 358.26ms. Allocated memory is still 169.9MB. Free memory was 112.4MB in the beginning and 100.4MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 674.81ms. Allocated memory is still 169.9MB. Free memory was 100.4MB in the beginning and 81.0MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 35.92ms. Allocated memory is still 169.9MB. Free memory was 81.0MB in the beginning and 79.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-11-20 17:54:51,671 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727bc2a1-4ac0-4328-926f-8e74489e5b6d/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with 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)