./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex7B.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_9eaebbbb-4484-4be9-bf24-6d472fcaaed1/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaebbbb-4484-4be9-bf24-6d472fcaaed1/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_9eaebbbb-4484-4be9-bf24-6d472fcaaed1/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaebbbb-4484-4be9-bf24-6d472fcaaed1/bin/ukojak-pZX7IvK2PQ/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex7B.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaebbbb-4484-4be9-bf24-6d472fcaaed1/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_9eaebbbb-4484-4be9-bf24-6d472fcaaed1/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 856d94ec041b267732c8bce0716646085f61a9b9ff6e49843f730e0ad45cc451 --- 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 17:26:01,431 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 17:26:01,434 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 17:26:01,464 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 17:26:01,469 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 17:26:01,472 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 17:26:01,478 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 17:26:01,482 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 17:26:01,485 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 17:26:01,491 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 17:26:01,492 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 17:26:01,494 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 17:26:01,495 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 17:26:01,498 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 17:26:01,501 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 17:26:01,503 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 17:26:01,505 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 17:26:01,507 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 17:26:01,508 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 17:26:01,515 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 17:26:01,517 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 17:26:01,518 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 17:26:01,520 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 17:26:01,521 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 17:26:01,530 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 17:26:01,530 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 17:26:01,530 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 17:26:01,531 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 17:26:01,532 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 17:26:01,533 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 17:26:01,533 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 17:26:01,534 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 17:26:01,535 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 17:26:01,536 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 17:26:01,537 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 17:26:01,537 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 17:26:01,538 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 17:26:01,539 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 17:26:01,543 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 17:26:01,546 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 17:26:01,547 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 17:26:01,548 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaebbbb-4484-4be9-bf24-6d472fcaaed1/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-20 17:26:01,587 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 17:26:01,595 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 17:26:01,597 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 17:26:01,597 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 17:26:01,598 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 17:26:01,599 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 17:26:01,599 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 17:26:01,599 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 17:26:01,599 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 17:26:01,600 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 17:26:01,601 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 17:26:01,601 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 17:26:01,601 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 17:26:01,602 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 17:26:01,602 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 17:26:01,602 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 17:26:01,602 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 17:26:01,603 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 17:26:01,603 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 17:26:01,603 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 17:26:01,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 17:26:01,604 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 17:26:01,604 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 17:26:01,604 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 17:26:01,605 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-20 17:26:01,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 17:26:01,605 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 17:26:01,606 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_9eaebbbb-4484-4be9-bf24-6d472fcaaed1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaebbbb-4484-4be9-bf24-6d472fcaaed1/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 856d94ec041b267732c8bce0716646085f61a9b9ff6e49843f730e0ad45cc451 [2022-11-20 17:26:01,939 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 17:26:01,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 17:26:01,975 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 17:26:01,976 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 17:26:01,977 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 17:26:01,979 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaebbbb-4484-4be9-bf24-6d472fcaaed1/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex7B.i [2022-11-20 17:26:05,105 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 17:26:05,365 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 17:26:05,368 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaebbbb-4484-4be9-bf24-6d472fcaaed1/sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex7B.i [2022-11-20 17:26:05,377 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaebbbb-4484-4be9-bf24-6d472fcaaed1/bin/ukojak-pZX7IvK2PQ/data/93b5aa16e/c06443825e5c42769ac06db0dadc4a90/FLAG90312229e [2022-11-20 17:26:05,396 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaebbbb-4484-4be9-bf24-6d472fcaaed1/bin/ukojak-pZX7IvK2PQ/data/93b5aa16e/c06443825e5c42769ac06db0dadc4a90 [2022-11-20 17:26:05,402 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 17:26:05,404 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 17:26:05,408 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 17:26:05,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 17:26:05,414 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 17:26:05,418 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:26:05" (1/1) ... [2022-11-20 17:26:05,419 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@121524d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:26:05, skipping insertion in model container [2022-11-20 17:26:05,420 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:26:05" (1/1) ... [2022-11-20 17:26:05,431 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 17:26:05,447 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 17:26:05,644 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 17:26:05,656 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 17:26:05,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 17:26:05,685 INFO L208 MainTranslator]: Completed translation [2022-11-20 17:26:05,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:26:05 WrapperNode [2022-11-20 17:26:05,687 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 17:26:05,688 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 17:26:05,689 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 17:26:05,689 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 17:26:05,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:26:05" (1/1) ... [2022-11-20 17:26:05,704 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:26:05" (1/1) ... [2022-11-20 17:26:05,722 INFO L138 Inliner]: procedures = 12, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2022-11-20 17:26:05,722 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 17:26:05,725 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 17:26:05,725 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 17:26:05,725 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 17:26:05,735 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:26:05" (1/1) ... [2022-11-20 17:26:05,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:26:05" (1/1) ... [2022-11-20 17:26:05,747 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:26:05" (1/1) ... [2022-11-20 17:26:05,747 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:26:05" (1/1) ... [2022-11-20 17:26:05,753 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:26:05" (1/1) ... [2022-11-20 17:26:05,755 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:26:05" (1/1) ... [2022-11-20 17:26:05,761 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:26:05" (1/1) ... [2022-11-20 17:26:05,762 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:26:05" (1/1) ... [2022-11-20 17:26:05,764 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 17:26:05,766 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 17:26:05,767 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 17:26:05,768 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 17:26:05,769 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:26:05" (1/1) ... [2022-11-20 17:26:05,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 17:26:05,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaebbbb-4484-4be9-bf24-6d472fcaaed1/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 17:26:05,802 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaebbbb-4484-4be9-bf24-6d472fcaaed1/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 17:26:05,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaebbbb-4484-4be9-bf24-6d472fcaaed1/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 17:26:05,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 17:26:05,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 17:26:05,857 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-11-20 17:26:05,857 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-11-20 17:26:05,858 INFO L130 BoogieDeclarations]: Found specification of procedure g [2022-11-20 17:26:05,858 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2022-11-20 17:26:05,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 17:26:05,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 17:26:05,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 17:26:05,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 17:26:05,970 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 17:26:05,972 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 17:26:06,142 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 17:26:06,158 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 17:26:06,158 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 17:26:06,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:26:06 BoogieIcfgContainer [2022-11-20 17:26:06,161 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 17:26:06,161 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-20 17:26:06,162 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-20 17:26:06,172 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-20 17:26:06,172 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:26:06" (1/1) ... [2022-11-20 17:26:06,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 17:26:06,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:26:06,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 21 states and 22 transitions. [2022-11-20 17:26:06,237 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2022-11-20 17:26:06,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-20 17:26:06,239 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:26:06,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:26:06,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 17:26:06,395 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 17:26:06,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 17:26:06,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 17:26:06,500 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 17:26:06,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 17:26:06,526 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2022-11-20 17:26:06,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 05:26:06 ImpRootNode [2022-11-20 17:26:06,553 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-20 17:26:06,554 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 17:26:06,554 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 17:26:06,555 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 17:26:06,555 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:26:06" (3/4) ... [2022-11-20 17:26:06,557 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-20 17:26:06,591 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaebbbb-4484-4be9-bf24-6d472fcaaed1/bin/ukojak-pZX7IvK2PQ/witness.graphml [2022-11-20 17:26:06,591 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 17:26:06,592 INFO L158 Benchmark]: Toolchain (without parser) took 1187.52ms. Allocated memory is still 146.8MB. Free memory was 112.9MB in the beginning and 72.6MB in the end (delta: 40.3MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-11-20 17:26:06,592 INFO L158 Benchmark]: CDTParser took 0.57ms. Allocated memory is still 115.3MB. Free memory is still 91.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 17:26:06,593 INFO L158 Benchmark]: CACSL2BoogieTranslator took 279.16ms. Allocated memory is still 146.8MB. Free memory was 112.4MB in the beginning and 102.9MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 17:26:06,593 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.62ms. Allocated memory is still 146.8MB. Free memory was 102.9MB in the beginning and 101.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 17:26:06,594 INFO L158 Benchmark]: Boogie Preprocessor took 40.83ms. Allocated memory is still 146.8MB. Free memory was 101.4MB in the beginning and 100.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 17:26:06,595 INFO L158 Benchmark]: RCFGBuilder took 394.48ms. Allocated memory is still 146.8MB. Free memory was 100.3MB in the beginning and 88.3MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 17:26:06,595 INFO L158 Benchmark]: CodeCheck took 391.93ms. Allocated memory is still 146.8MB. Free memory was 88.3MB in the beginning and 74.0MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 17:26:06,596 INFO L158 Benchmark]: Witness Printer took 36.96ms. Allocated memory is still 146.8MB. Free memory was 74.0MB in the beginning and 72.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 17:26:06,599 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, 21 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 13]: integer overflow possible integer overflow possible We found a FailurePath: [L37] int *p1 = malloc(sizeof(int)); [L38] int *p2 = malloc(sizeof(int)); [L40] *p1 = __VERIFIER_nondet_int() [L41] *p2 = __VERIFIER_nondet_int() [L43] CALL f(p1,p2) VAL [p={-2:0}, q={-1:0}] [L13] EXPR \read(*p) [L13] EXPR \read(*q) VAL [\read(*p)=1143, \read(*q)=2147482505, p={-2:0}, p={-2:0}, q={-1:0}, q={-1:0}] [L13] *p + *q VAL [\read(*p)=1143, \read(*q)=2147482505, p={-2:0}, p={-2:0}, q={-1:0}, q={-1:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57ms. Allocated memory is still 115.3MB. Free memory is still 91.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 279.16ms. Allocated memory is still 146.8MB. Free memory was 112.4MB in the beginning and 102.9MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.62ms. Allocated memory is still 146.8MB. Free memory was 102.9MB in the beginning and 101.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.83ms. Allocated memory is still 146.8MB. Free memory was 101.4MB in the beginning and 100.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 394.48ms. Allocated memory is still 146.8MB. Free memory was 100.3MB in the beginning and 88.3MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 391.93ms. Allocated memory is still 146.8MB. Free memory was 88.3MB in the beginning and 74.0MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 36.96ms. Allocated memory is still 146.8MB. Free memory was 74.0MB in the beginning and 72.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-11-20 17:26:06,620 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eaebbbb-4484-4be9-bf24-6d472fcaaed1/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)