./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-recursive-malloc/chunk1-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 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_5ee3ade5-1f5a-43df-8397-38e49635d72f/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee3ade5-1f5a-43df-8397-38e49635d72f/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee3ade5-1f5a-43df-8397-38e49635d72f/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee3ade5-1f5a-43df-8397-38e49635d72f/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/chunk1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee3ade5-1f5a-43df-8397-38e49635d72f/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee3ade5-1f5a-43df-8397-38e49635d72f/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6a66369f5c9a0270ee2408adc274f8f50150ff97d329dbc5d86329753dd9abac --- 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-2329fc7 [2022-12-14 08:19:40,407 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:19:40,409 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:19:40,422 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:19:40,422 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:19:40,423 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:19:40,424 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:19:40,425 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:19:40,426 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:19:40,427 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:19:40,427 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:19:40,428 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:19:40,428 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:19:40,429 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:19:40,430 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:19:40,431 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:19:40,431 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:19:40,432 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:19:40,433 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:19:40,434 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:19:40,435 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:19:40,436 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:19:40,438 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:19:40,439 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:19:40,442 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:19:40,443 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:19:40,443 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:19:40,444 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:19:40,445 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:19:40,446 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:19:40,446 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:19:40,447 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:19:40,447 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:19:40,448 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:19:40,449 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:19:40,449 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:19:40,450 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:19:40,450 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:19:40,450 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:19:40,451 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:19:40,452 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:19:40,453 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee3ade5-1f5a-43df-8397-38e49635d72f/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf [2022-12-14 08:19:40,474 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:19:40,474 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:19:40,475 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:19:40,475 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:19:40,476 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:19:40,476 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:19:40,476 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:19:40,476 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:19:40,476 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:19:40,477 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 08:19:40,477 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:19:40,477 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:19:40,477 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 08:19:40,477 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 08:19:40,477 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:19:40,478 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 08:19:40,478 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 08:19:40,478 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 08:19:40,479 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 08:19:40,479 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 08:19:40,479 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:19:40,479 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 08:19:40,480 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:19:40,480 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:19:40,480 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 08:19:40,480 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 08:19:40,480 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 08:19:40,480 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:19:40,481 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 08:19:40,481 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:19:40,481 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:19:40,481 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:19:40,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:19:40,482 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:19:40,482 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 08:19:40,482 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:19:40,482 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 08:19:40,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 08:19:40,483 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:19:40,483 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_5ee3ade5-1f5a-43df-8397-38e49635d72f/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee3ade5-1f5a-43df-8397-38e49635d72f/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a66369f5c9a0270ee2408adc274f8f50150ff97d329dbc5d86329753dd9abac [2022-12-14 08:19:40,674 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:19:40,691 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:19:40,693 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:19:40,694 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:19:40,694 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:19:40,695 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee3ade5-1f5a-43df-8397-38e49635d72f/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/termination-recursive-malloc/chunk1-2.i [2022-12-14 08:19:43,281 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:19:43,430 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:19:43,430 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee3ade5-1f5a-43df-8397-38e49635d72f/sv-benchmarks/c/termination-recursive-malloc/chunk1-2.i [2022-12-14 08:19:43,435 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee3ade5-1f5a-43df-8397-38e49635d72f/bin/utaipan-gh47qXpMRh/data/e46cd6bca/5d29ebb703b14faeaa19bc6f88a062c1/FLAG375b88beb [2022-12-14 08:19:43,449 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee3ade5-1f5a-43df-8397-38e49635d72f/bin/utaipan-gh47qXpMRh/data/e46cd6bca/5d29ebb703b14faeaa19bc6f88a062c1 [2022-12-14 08:19:43,451 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:19:43,453 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:19:43,454 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:19:43,454 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:19:43,457 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:19:43,458 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:19:43" (1/1) ... [2022-12-14 08:19:43,459 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23448128 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:19:43, skipping insertion in model container [2022-12-14 08:19:43,459 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:19:43" (1/1) ... [2022-12-14 08:19:43,466 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:19:43,479 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:19:43,586 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:19:43,594 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:19:43,604 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:19:43,614 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:19:43,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:19:43 WrapperNode [2022-12-14 08:19:43,615 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:19:43,615 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:19:43,616 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:19:43,616 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:19:43,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:19:43" (1/1) ... [2022-12-14 08:19:43,626 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:19:43" (1/1) ... [2022-12-14 08:19:43,638 INFO L138 Inliner]: procedures = 11, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2022-12-14 08:19:43,639 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:19:43,639 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:19:43,639 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:19:43,639 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:19:43,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:19:43" (1/1) ... [2022-12-14 08:19:43,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:19:43" (1/1) ... [2022-12-14 08:19:43,647 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:19:43" (1/1) ... [2022-12-14 08:19:43,647 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:19:43" (1/1) ... [2022-12-14 08:19:43,650 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:19:43" (1/1) ... [2022-12-14 08:19:43,652 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:19:43" (1/1) ... [2022-12-14 08:19:43,652 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:19:43" (1/1) ... [2022-12-14 08:19:43,653 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:19:43" (1/1) ... [2022-12-14 08:19:43,654 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:19:43,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:19:43,655 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:19:43,655 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:19:43,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:19:43" (1/1) ... [2022-12-14 08:19:43,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:19:43,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee3ade5-1f5a-43df-8397-38e49635d72f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:19:43,680 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee3ade5-1f5a-43df-8397-38e49635d72f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:19:43,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee3ade5-1f5a-43df-8397-38e49635d72f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:19:43,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 08:19:43,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 08:19:43,708 INFO L130 BoogieDeclarations]: Found specification of procedure chunk [2022-12-14 08:19:43,708 INFO L138 BoogieDeclarations]: Found implementation of procedure chunk [2022-12-14 08:19:43,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:19:43,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:19:43,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 08:19:43,763 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:19:43,765 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:19:43,883 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:19:43,895 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:19:43,895 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 08:19:43,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:19:43 BoogieIcfgContainer [2022-12-14 08:19:43,897 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:19:43,899 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:19:43,899 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:19:43,901 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:19:43,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:19:43" (1/3) ... [2022-12-14 08:19:43,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a796614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:19:43, skipping insertion in model container [2022-12-14 08:19:43,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:19:43" (2/3) ... [2022-12-14 08:19:43,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a796614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:19:43, skipping insertion in model container [2022-12-14 08:19:43,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:19:43" (3/3) ... [2022-12-14 08:19:43,903 INFO L112 eAbstractionObserver]: Analyzing ICFG chunk1-2.i [2022-12-14 08:19:43,917 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:19:43,917 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2022-12-14 08:19:43,951 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:19:43,956 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5841753a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:19:43,956 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-12-14 08:19:43,959 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 12 states have (on average 2.25) internal successors, (27), 27 states have internal predecessors, (27), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 08:19:43,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 08:19:43,964 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:19:43,964 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 08:19:43,965 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [chunkErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, chunkErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, chunkErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-14 08:19:43,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:19:43,969 INFO L85 PathProgramCache]: Analyzing trace with hash 73879, now seen corresponding path program 1 times [2022-12-14 08:19:43,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:19:43,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112790948] [2022-12-14 08:19:43,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:19:43,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:19:44,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 08:19:44,045 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 08:19:44,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 08:19:44,065 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 08:19:44,067 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 08:19:44,068 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (12 of 13 remaining) [2022-12-14 08:19:44,069 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 13 remaining) [2022-12-14 08:19:44,070 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 13 remaining) [2022-12-14 08:19:44,070 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 13 remaining) [2022-12-14 08:19:44,070 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 13 remaining) [2022-12-14 08:19:44,070 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 13 remaining) [2022-12-14 08:19:44,071 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 13 remaining) [2022-12-14 08:19:44,071 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 13 remaining) [2022-12-14 08:19:44,071 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 13 remaining) [2022-12-14 08:19:44,071 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 13 remaining) [2022-12-14 08:19:44,072 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 13 remaining) [2022-12-14 08:19:44,072 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 13 remaining) [2022-12-14 08:19:44,072 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 13 remaining) [2022-12-14 08:19:44,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 08:19:44,076 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 08:19:44,079 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 08:19:44,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 08:19:44 BoogieIcfgContainer [2022-12-14 08:19:44,090 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 08:19:44,091 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 08:19:44,091 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 08:19:44,091 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 08:19:44,091 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:19:43" (3/4) ... [2022-12-14 08:19:44,094 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 08:19:44,094 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 08:19:44,095 INFO L158 Benchmark]: Toolchain (without parser) took 642.21ms. Allocated memory is still 119.5MB. Free memory was 89.3MB in the beginning and 50.4MB in the end (delta: 38.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-12-14 08:19:44,095 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 119.5MB. Free memory is still 95.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:19:44,095 INFO L158 Benchmark]: CACSL2BoogieTranslator took 161.22ms. Allocated memory is still 119.5MB. Free memory was 89.3MB in the beginning and 79.7MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-14 08:19:44,096 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.22ms. Allocated memory is still 119.5MB. Free memory was 79.7MB in the beginning and 78.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:19:44,096 INFO L158 Benchmark]: Boogie Preprocessor took 15.19ms. Allocated memory is still 119.5MB. Free memory was 78.4MB in the beginning and 77.2MB in the end (delta: 1.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 08:19:44,096 INFO L158 Benchmark]: RCFGBuilder took 242.17ms. Allocated memory is still 119.5MB. Free memory was 77.2MB in the beginning and 65.1MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 08:19:44,097 INFO L158 Benchmark]: TraceAbstraction took 191.43ms. Allocated memory is still 119.5MB. Free memory was 64.3MB in the beginning and 50.9MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 08:19:44,097 INFO L158 Benchmark]: Witness Printer took 3.35ms. Allocated memory is still 119.5MB. Free memory was 50.9MB in the beginning and 50.4MB in the end (delta: 488.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:19:44,099 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 119.5MB. Free memory is still 95.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 161.22ms. Allocated memory is still 119.5MB. Free memory was 89.3MB in the beginning and 79.7MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.22ms. Allocated memory is still 119.5MB. Free memory was 79.7MB in the beginning and 78.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.19ms. Allocated memory is still 119.5MB. Free memory was 78.4MB in the beginning and 77.2MB in the end (delta: 1.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 242.17ms. Allocated memory is still 119.5MB. Free memory was 77.2MB in the beginning and 65.1MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 191.43ms. Allocated memory is still 119.5MB. Free memory was 64.3MB in the beginning and 50.9MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 3.35ms. Allocated memory is still 119.5MB. Free memory was 50.9MB in the beginning and 50.4MB in the end (delta: 488.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L20] int *data = malloc(4*sizeof(int)); [L22] int i = __VERIFIER_nondet_int(); [L23] int upper = __VERIFIER_nondet_int(); [L25] COND TRUE i >= upper [L26] return 0; VAL [\result=0, data={-1:0}, i=0, upper=0] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 29 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, 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: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-14 08:19:44,114 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee3ade5-1f5a-43df-8397-38e49635d72f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_5ee3ade5-1f5a-43df-8397-38e49635d72f/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee3ade5-1f5a-43df-8397-38e49635d72f/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee3ade5-1f5a-43df-8397-38e49635d72f/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee3ade5-1f5a-43df-8397-38e49635d72f/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/chunk1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee3ade5-1f5a-43df-8397-38e49635d72f/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee3ade5-1f5a-43df-8397-38e49635d72f/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6a66369f5c9a0270ee2408adc274f8f50150ff97d329dbc5d86329753dd9abac --- 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-2329fc7 [2022-12-14 08:19:45,871 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:19:45,872 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:19:45,886 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:19:45,886 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:19:45,887 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:19:45,888 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:19:45,889 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:19:45,890 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:19:45,890 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:19:45,891 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:19:45,892 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:19:45,892 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:19:45,893 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:19:45,893 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:19:45,894 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:19:45,895 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:19:45,895 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:19:45,896 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:19:45,898 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:19:45,899 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:19:45,899 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:19:45,900 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:19:45,901 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:19:45,903 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:19:45,903 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:19:45,903 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:19:45,904 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:19:45,904 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:19:45,905 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:19:45,905 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:19:45,906 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:19:45,911 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:19:45,911 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:19:45,912 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:19:45,912 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:19:45,912 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:19:45,913 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:19:45,913 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:19:45,913 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:19:45,914 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:19:45,914 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee3ade5-1f5a-43df-8397-38e49635d72f/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Bitvector.epf [2022-12-14 08:19:45,933 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:19:45,933 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:19:45,933 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:19:45,933 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:19:45,934 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:19:45,934 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:19:45,934 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:19:45,934 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:19:45,934 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:19:45,934 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:19:45,934 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:19:45,934 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:19:45,935 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 08:19:45,935 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 08:19:45,935 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:19:45,935 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 08:19:45,935 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:19:45,935 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:19:45,936 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 08:19:45,936 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 08:19:45,936 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 08:19:45,936 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:19:45,936 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 08:19:45,936 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 08:19:45,936 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 08:19:45,936 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:19:45,936 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:19:45,936 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 08:19:45,937 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:19:45,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:19:45,937 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:19:45,937 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:19:45,937 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 08:19:45,937 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 08:19:45,937 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:19:45,937 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 08:19:45,937 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_5ee3ade5-1f5a-43df-8397-38e49635d72f/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee3ade5-1f5a-43df-8397-38e49635d72f/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a66369f5c9a0270ee2408adc274f8f50150ff97d329dbc5d86329753dd9abac [2022-12-14 08:19:46,147 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:19:46,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:19:46,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:19:46,166 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:19:46,166 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:19:46,167 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee3ade5-1f5a-43df-8397-38e49635d72f/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/termination-recursive-malloc/chunk1-2.i [2022-12-14 08:19:48,768 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:19:48,894 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:19:48,894 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee3ade5-1f5a-43df-8397-38e49635d72f/sv-benchmarks/c/termination-recursive-malloc/chunk1-2.i [2022-12-14 08:19:48,899 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee3ade5-1f5a-43df-8397-38e49635d72f/bin/utaipan-gh47qXpMRh/data/3bce6ffb9/eea7e9ddccf8492b808edf45de5f7f8a/FLAGc9cfdefd9 [2022-12-14 08:19:48,910 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee3ade5-1f5a-43df-8397-38e49635d72f/bin/utaipan-gh47qXpMRh/data/3bce6ffb9/eea7e9ddccf8492b808edf45de5f7f8a [2022-12-14 08:19:48,912 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:19:48,913 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:19:48,914 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:19:48,914 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:19:48,916 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:19:48,917 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:19:48" (1/1) ... [2022-12-14 08:19:48,918 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d9a52be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:19:48, skipping insertion in model container [2022-12-14 08:19:48,918 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:19:48" (1/1) ... [2022-12-14 08:19:48,923 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:19:48,935 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:19:49,033 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:19:49,043 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:19:49,053 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:19:49,064 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:19:49,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:19:49 WrapperNode [2022-12-14 08:19:49,064 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:19:49,065 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:19:49,065 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:19:49,065 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:19:49,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:19:49" (1/1) ... [2022-12-14 08:19:49,076 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:19:49" (1/1) ... [2022-12-14 08:19:49,087 INFO L138 Inliner]: procedures = 11, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2022-12-14 08:19:49,087 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:19:49,087 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:19:49,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:19:49,087 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:19:49,094 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:19:49" (1/1) ... [2022-12-14 08:19:49,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:19:49" (1/1) ... [2022-12-14 08:19:49,095 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:19:49" (1/1) ... [2022-12-14 08:19:49,095 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:19:49" (1/1) ... [2022-12-14 08:19:49,099 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:19:49" (1/1) ... [2022-12-14 08:19:49,100 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:19:49" (1/1) ... [2022-12-14 08:19:49,101 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:19:49" (1/1) ... [2022-12-14 08:19:49,102 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:19:49" (1/1) ... [2022-12-14 08:19:49,103 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:19:49,104 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:19:49,104 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:19:49,104 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:19:49,104 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:19:49" (1/1) ... [2022-12-14 08:19:49,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:19:49,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee3ade5-1f5a-43df-8397-38e49635d72f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:19:49,127 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee3ade5-1f5a-43df-8397-38e49635d72f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:19:49,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee3ade5-1f5a-43df-8397-38e49635d72f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:19:49,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 08:19:49,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-14 08:19:49,155 INFO L130 BoogieDeclarations]: Found specification of procedure chunk [2022-12-14 08:19:49,155 INFO L138 BoogieDeclarations]: Found implementation of procedure chunk [2022-12-14 08:19:49,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:19:49,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:19:49,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-14 08:19:49,210 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:19:49,212 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:19:49,427 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:19:49,431 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:19:49,432 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 08:19:49,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:19:49 BoogieIcfgContainer [2022-12-14 08:19:49,433 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:19:49,434 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:19:49,435 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:19:49,437 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:19:49,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:19:48" (1/3) ... [2022-12-14 08:19:49,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b17af5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:19:49, skipping insertion in model container [2022-12-14 08:19:49,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:19:49" (2/3) ... [2022-12-14 08:19:49,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b17af5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:19:49, skipping insertion in model container [2022-12-14 08:19:49,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:19:49" (3/3) ... [2022-12-14 08:19:49,439 INFO L112 eAbstractionObserver]: Analyzing ICFG chunk1-2.i [2022-12-14 08:19:49,452 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:19:49,453 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2022-12-14 08:19:49,485 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:19:49,490 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@103d3a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:19:49,490 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-12-14 08:19:49,493 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 16 states have (on average 1.9375) internal successors, (31), 31 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 08:19:49,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 08:19:49,498 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:19:49,498 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 08:19:49,499 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [chunkErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, chunkErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, chunkErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-14 08:19:49,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:19:49,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1572078, now seen corresponding path program 1 times [2022-12-14 08:19:49,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 08:19:49,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [785250056] [2022-12-14 08:19:49,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:19:49,511 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 08:19:49,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee3ade5-1f5a-43df-8397-38e49635d72f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 08:19:49,513 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee3ade5-1f5a-43df-8397-38e49635d72f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 08:19:49,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee3ade5-1f5a-43df-8397-38e49635d72f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-14 08:19:49,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 08:19:49,557 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 08:19:49,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 08:19:49,583 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 08:19:49,584 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 08:19:49,585 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (12 of 13 remaining) [2022-12-14 08:19:49,587 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 13 remaining) [2022-12-14 08:19:49,587 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 13 remaining) [2022-12-14 08:19:49,587 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 13 remaining) [2022-12-14 08:19:49,587 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 13 remaining) [2022-12-14 08:19:49,588 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 13 remaining) [2022-12-14 08:19:49,588 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 13 remaining) [2022-12-14 08:19:49,588 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 13 remaining) [2022-12-14 08:19:49,588 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 13 remaining) [2022-12-14 08:19:49,588 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 13 remaining) [2022-12-14 08:19:49,588 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 13 remaining) [2022-12-14 08:19:49,588 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 13 remaining) [2022-12-14 08:19:49,589 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 13 remaining) [2022-12-14 08:19:49,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee3ade5-1f5a-43df-8397-38e49635d72f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-14 08:19:49,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee3ade5-1f5a-43df-8397-38e49635d72f/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 08:19:49,801 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 08:19:49,813 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 08:19:49,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 08:19:49 BoogieIcfgContainer [2022-12-14 08:19:49,849 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 08:19:49,851 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 08:19:49,851 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 08:19:49,852 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 08:19:49,853 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:19:49" (3/4) ... [2022-12-14 08:19:49,861 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 08:19:49,861 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 08:19:49,864 INFO L158 Benchmark]: Toolchain (without parser) took 949.79ms. Allocated memory is still 83.9MB. Free memory was 56.3MB in the beginning and 44.7MB in the end (delta: 11.6MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2022-12-14 08:19:49,865 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 50.3MB. Free memory was 29.0MB in the beginning and 29.0MB in the end (delta: 54.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:19:49,867 INFO L158 Benchmark]: CACSL2BoogieTranslator took 150.95ms. Allocated memory is still 83.9MB. Free memory was 56.1MB in the beginning and 46.4MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-14 08:19:49,868 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.85ms. Allocated memory is still 83.9MB. Free memory was 46.1MB in the beginning and 44.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:19:49,870 INFO L158 Benchmark]: Boogie Preprocessor took 15.79ms. Allocated memory is still 83.9MB. Free memory was 44.7MB in the beginning and 43.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:19:49,871 INFO L158 Benchmark]: RCFGBuilder took 329.55ms. Allocated memory is still 83.9MB. Free memory was 43.5MB in the beginning and 58.0MB in the end (delta: -14.5MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. [2022-12-14 08:19:49,872 INFO L158 Benchmark]: TraceAbstraction took 414.84ms. Allocated memory is still 83.9MB. Free memory was 57.3MB in the beginning and 45.1MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 08:19:49,874 INFO L158 Benchmark]: Witness Printer took 10.42ms. Allocated memory is still 83.9MB. Free memory was 45.1MB in the beginning and 44.7MB in the end (delta: 349.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:19:49,882 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 50.3MB. Free memory was 29.0MB in the beginning and 29.0MB in the end (delta: 54.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 150.95ms. Allocated memory is still 83.9MB. Free memory was 56.1MB in the beginning and 46.4MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.85ms. Allocated memory is still 83.9MB. Free memory was 46.1MB in the beginning and 44.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.79ms. Allocated memory is still 83.9MB. Free memory was 44.7MB in the beginning and 43.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 329.55ms. Allocated memory is still 83.9MB. Free memory was 43.5MB in the beginning and 58.0MB in the end (delta: -14.5MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. * TraceAbstraction took 414.84ms. Allocated memory is still 83.9MB. Free memory was 57.3MB in the beginning and 45.1MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 10.42ms. Allocated memory is still 83.9MB. Free memory was 45.1MB in the beginning and 44.7MB in the end (delta: 349.8kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L20] int *data = malloc(4*sizeof(int)); [L22] int i = __VERIFIER_nondet_int(); [L23] int upper = __VERIFIER_nondet_int(); [L25] COND TRUE i >= upper [L26] return 0; VAL [\result=0, data={1:0}, i=0, upper=0] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, 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: TRACE_CHECK: 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, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-14 08:19:49,905 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee3ade5-1f5a-43df-8397-38e49635d72f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample