./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex4.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f71ea18-f204-44eb-a128-846e94a76f68/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f71ea18-f204-44eb-a128-846e94a76f68/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f71ea18-f204-44eb-a128-846e94a76f68/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f71ea18-f204-44eb-a128-846e94a76f68/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f71ea18-f204-44eb-a128-846e94a76f68/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f71ea18-f204-44eb-a128-846e94a76f68/bin/ukojak-verify-afCqCEvfdi --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a3234041458b1cb43f5c8cf47efd2786acbf35974c39e2e7dc8710d7ed359b74 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:03:29,333 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:03:29,454 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f71ea18-f204-44eb-a128-846e94a76f68/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-24 23:03:29,467 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:03:29,468 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 23:03:29,506 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:03:29,508 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:03:29,509 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 23:03:29,510 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:03:29,515 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:03:29,515 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:03:29,516 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:03:29,516 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:03:29,518 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:03:29,519 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:03:29,519 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:03:29,519 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:03:29,520 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 23:03:29,520 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:03:29,521 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:03:29,521 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:03:29,522 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:03:29,523 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:03:29,523 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:03:29,523 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:03:29,524 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:03:29,524 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:03:29,525 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:03:29,525 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:03:29,526 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 23:03:29,527 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:03:29,527 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:03:29,528 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f71ea18-f204-44eb-a128-846e94a76f68/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f71ea18-f204-44eb-a128-846e94a76f68/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3234041458b1cb43f5c8cf47efd2786acbf35974c39e2e7dc8710d7ed359b74 [2023-11-24 23:03:29,809 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:03:29,840 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:03:29,842 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:03:29,844 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:03:29,845 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:03:29,846 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f71ea18-f204-44eb-a128-846e94a76f68/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex4.i [2023-11-24 23:03:32,912 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:03:33,171 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:03:33,172 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f71ea18-f204-44eb-a128-846e94a76f68/sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex4.i [2023-11-24 23:03:33,181 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f71ea18-f204-44eb-a128-846e94a76f68/bin/ukojak-verify-afCqCEvfdi/data/4ccb06f6d/f540297a319045ba8d69d373da1c14f5/FLAG61e773c05 [2023-11-24 23:03:33,200 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f71ea18-f204-44eb-a128-846e94a76f68/bin/ukojak-verify-afCqCEvfdi/data/4ccb06f6d/f540297a319045ba8d69d373da1c14f5 [2023-11-24 23:03:33,206 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:03:33,209 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:03:33,212 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:03:33,213 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:03:33,218 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:03:33,219 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:03:33" (1/1) ... [2023-11-24 23:03:33,220 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d0b206a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:33, skipping insertion in model container [2023-11-24 23:03:33,222 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:03:33" (1/1) ... [2023-11-24 23:03:33,247 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:03:33,446 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:03:33,458 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:03:33,475 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:03:33,491 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:03:33,492 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:33 WrapperNode [2023-11-24 23:03:33,492 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:03:33,494 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:03:33,494 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:03:33,494 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:03:33,503 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:33" (1/1) ... [2023-11-24 23:03:33,515 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:33" (1/1) ... [2023-11-24 23:03:33,535 INFO L138 Inliner]: procedures = 12, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2023-11-24 23:03:33,535 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:03:33,536 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:03:33,536 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:03:33,537 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:03:33,544 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:33" (1/1) ... [2023-11-24 23:03:33,544 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:33" (1/1) ... [2023-11-24 23:03:33,546 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:33" (1/1) ... [2023-11-24 23:03:33,547 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:33" (1/1) ... [2023-11-24 23:03:33,552 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:33" (1/1) ... [2023-11-24 23:03:33,554 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:33" (1/1) ... [2023-11-24 23:03:33,563 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:33" (1/1) ... [2023-11-24 23:03:33,564 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:33" (1/1) ... [2023-11-24 23:03:33,566 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:03:33,567 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:03:33,568 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:03:33,568 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:03:33,569 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:33" (1/1) ... [2023-11-24 23:03:33,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:03:33,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f71ea18-f204-44eb-a128-846e94a76f68/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:03:33,613 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f71ea18-f204-44eb-a128-846e94a76f68/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:03:33,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f71ea18-f204-44eb-a128-846e94a76f68/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:03:33,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:03:33,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 23:03:33,661 INFO L130 BoogieDeclarations]: Found specification of procedure f [2023-11-24 23:03:33,662 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2023-11-24 23:03:33,662 INFO L130 BoogieDeclarations]: Found specification of procedure g [2023-11-24 23:03:33,662 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2023-11-24 23:03:33,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:03:33,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:03:33,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:03:33,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:03:33,746 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:03:33,748 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:03:33,948 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:03:33,973 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:03:33,974 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 23:03:33,975 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:03:33 BoogieIcfgContainer [2023-11-24 23:03:33,976 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:03:33,977 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:03:33,977 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:03:33,989 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:03:33,990 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:03:33" (1/1) ... [2023-11-24 23:03:34,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:03:34,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:03:34,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 30 states and 32 transitions. [2023-11-24 23:03:34,074 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2023-11-24 23:03:34,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 23:03:34,076 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:03:34,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:03:34,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:03:34,248 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:03:34,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:03:34,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:03:34,405 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:03:34,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:03:34,437 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-24 23:03:34,462 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem2 could not be translated [2023-11-24 23:03:34,463 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem1 could not be translated [2023-11-24 23:03:34,464 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem2 could not be translated [2023-11-24 23:03:34,464 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem1 could not be translated [2023-11-24 23:03:34,470 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 11:03:34 ImpRootNode [2023-11-24 23:03:34,470 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 23:03:34,473 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:03:34,473 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:03:34,474 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:03:34,475 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:03:33" (3/4) ... [2023-11-24 23:03:34,476 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-24 23:03:34,483 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem2 could not be translated [2023-11-24 23:03:34,483 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem1 could not be translated [2023-11-24 23:03:34,484 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem2 could not be translated [2023-11-24 23:03:34,485 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem1 could not be translated [2023-11-24 23:03:34,544 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f71ea18-f204-44eb-a128-846e94a76f68/bin/ukojak-verify-afCqCEvfdi/witness.graphml [2023-11-24 23:03:34,545 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:03:34,548 INFO L158 Benchmark]: Toolchain (without parser) took 1336.86ms. Allocated memory is still 167.8MB. Free memory was 126.6MB in the beginning and 129.5MB in the end (delta: -2.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:03:34,552 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 123.7MB. Free memory was 70.2MB in the beginning and 70.1MB in the end (delta: 100.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:03:34,553 INFO L158 Benchmark]: CACSL2BoogieTranslator took 280.34ms. Allocated memory is still 167.8MB. Free memory was 126.6MB in the beginning and 116.7MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-24 23:03:34,553 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.79ms. Allocated memory is still 167.8MB. Free memory was 116.7MB in the beginning and 115.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:03:34,554 INFO L158 Benchmark]: Boogie Preprocessor took 30.38ms. Allocated memory is still 167.8MB. Free memory was 115.2MB in the beginning and 114.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:03:34,554 INFO L158 Benchmark]: RCFGBuilder took 408.66ms. Allocated memory is still 167.8MB. Free memory was 114.1MB in the beginning and 101.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-24 23:03:34,555 INFO L158 Benchmark]: CodeCheck took 493.72ms. Allocated memory is still 167.8MB. Free memory was 101.5MB in the beginning and 131.6MB in the end (delta: -30.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:03:34,555 INFO L158 Benchmark]: Witness Printer took 72.20ms. Allocated memory is still 167.8MB. Free memory was 131.6MB in the beginning and 129.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:03:34,558 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 30 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, 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: [L44] int *p1 = malloc(sizeof(int)); [L45] int *p2 = malloc(sizeof(int)); [L47] *p1 = __VERIFIER_nondet_int() [L48] *p2 = __VERIFIER_nondet_int() [L50] CALL f(p1,p2) VAL [p={-2998:0}, q={-2999:0}] [L13] EXPR \read(*p) [L13] EXPR \read(*q) VAL [p={-2998:0}, p={-2998:0}, q={-2999:0}, q={-2999:0}] [L13] *p + *q VAL [p={-2998:0}, p={-2998:0}, q={-2999:0}, q={-2999:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 123.7MB. Free memory was 70.2MB in the beginning and 70.1MB in the end (delta: 100.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 280.34ms. Allocated memory is still 167.8MB. Free memory was 126.6MB in the beginning and 116.7MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.79ms. Allocated memory is still 167.8MB. Free memory was 116.7MB in the beginning and 115.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.38ms. Allocated memory is still 167.8MB. Free memory was 115.2MB in the beginning and 114.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 408.66ms. Allocated memory is still 167.8MB. Free memory was 114.1MB in the beginning and 101.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 493.72ms. Allocated memory is still 167.8MB. Free memory was 101.5MB in the beginning and 131.6MB in the end (delta: -30.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 72.20ms. Allocated memory is still 167.8MB. Free memory was 131.6MB in the beginning and 129.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem2 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem1 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem2 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem1 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem2 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem1 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem2 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem1 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate proved your program to be incorrect! [2023-11-24 23:03:34,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f71ea18-f204-44eb-a128-846e94a76f68/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)