./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test9_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_574cae1b-3562-410a-9e2f-c9b135178734/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_574cae1b-3562-410a-9e2f-c9b135178734/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_574cae1b-3562-410a-9e2f-c9b135178734/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_574cae1b-3562-410a-9e2f-c9b135178734/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test9_1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_574cae1b-3562-410a-9e2f-c9b135178734/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_574cae1b-3562-410a-9e2f-c9b135178734/bin/utaipan --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 32bit --witnessprinter.graph.data.programhash 3c3780959fce78cf56ec9398e6f7b05938c23d68 .............................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_574cae1b-3562-410a-9e2f-c9b135178734/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_574cae1b-3562-410a-9e2f-c9b135178734/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_574cae1b-3562-410a-9e2f-c9b135178734/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_574cae1b-3562-410a-9e2f-c9b135178734/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test9_1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_574cae1b-3562-410a-9e2f-c9b135178734/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_574cae1b-3562-410a-9e2f-c9b135178734/bin/utaipan --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 32bit --witnessprinter.graph.data.programhash 3c3780959fce78cf56ec9398e6f7b05938c23d68 ........................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 13:06:42,605 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:06:42,607 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:06:42,652 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:06:42,653 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:06:42,654 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:06:42,656 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:06:42,658 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:06:42,661 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:06:42,662 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:06:42,663 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:06:42,664 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:06:42,665 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:06:42,666 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:06:42,667 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:06:42,668 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:06:42,669 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:06:42,670 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:06:42,672 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:06:42,675 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:06:42,676 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:06:42,678 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:06:42,679 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:06:42,680 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:06:42,683 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:06:42,684 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:06:42,684 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:06:42,685 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:06:42,686 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:06:42,687 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:06:42,688 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:06:42,689 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:06:42,690 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:06:42,690 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:06:42,692 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:06:42,692 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:06:42,693 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:06:42,693 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:06:42,694 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:06:42,695 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:06:42,696 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:06:42,697 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_574cae1b-3562-410a-9e2f-c9b135178734/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2020-11-22 13:06:42,720 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:06:42,721 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:06:42,722 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:06:42,722 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:06:42,722 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:06:42,722 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:06:42,723 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:06:42,723 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:06:42,723 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:06:42,723 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:06:42,724 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:06:42,724 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:06:42,724 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:06:42,724 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:06:42,724 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:06:42,725 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-22 13:06:42,725 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-22 13:06:42,726 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:06:42,726 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:06:42,726 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-22 13:06:42,726 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:06:42,727 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:06:42,727 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:06:42,727 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-22 13:06:42,727 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-22 13:06:42,727 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-22 13:06:42,728 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:06:42,728 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:06:42,728 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:06:42,728 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:06:42,729 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:06:42,729 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:06:42,729 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:06:42,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:06:42,729 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:06:42,730 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:06:42,730 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:06:42,730 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:06:42,730 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:06:42,730 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:06:42,731 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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-vcloud-master/worker/run_dir_574cae1b-3562-410a-9e2f-c9b135178734/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_574cae1b-3562-410a-9e2f-c9b135178734/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c3780959fce78cf56ec9398e6f7b05938c23d68 [2020-11-22 13:06:43,008 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:06:43,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:06:43,039 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:06:43,040 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:06:43,041 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:06:43,041 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_574cae1b-3562-410a-9e2f-c9b135178734/bin/utaipan/../../sv-benchmarks/c/ldv-memsafety/memleaks_test9_1.i [2020-11-22 13:06:43,126 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_574cae1b-3562-410a-9e2f-c9b135178734/bin/utaipan/data/a06c2ab37/2721b02a4f194a43b3327e5f990ce536/FLAG20c0b4f45 [2020-11-22 13:06:43,623 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:06:43,626 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_574cae1b-3562-410a-9e2f-c9b135178734/sv-benchmarks/c/ldv-memsafety/memleaks_test9_1.i [2020-11-22 13:06:43,643 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_574cae1b-3562-410a-9e2f-c9b135178734/bin/utaipan/data/a06c2ab37/2721b02a4f194a43b3327e5f990ce536/FLAG20c0b4f45 [2020-11-22 13:06:43,935 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_574cae1b-3562-410a-9e2f-c9b135178734/bin/utaipan/data/a06c2ab37/2721b02a4f194a43b3327e5f990ce536 [2020-11-22 13:06:43,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:06:43,938 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:06:43,941 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:06:43,941 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:06:43,945 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:06:43,945 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:06:43" (1/1) ... [2020-11-22 13:06:43,947 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dd874ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:43, skipping insertion in model container [2020-11-22 13:06:43,948 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:06:43" (1/1) ... [2020-11-22 13:06:43,955 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:06:43,998 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:06:44,385 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:06:44,401 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2020-11-22 13:06:44,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@337eed8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:44, skipping insertion in model container [2020-11-22 13:06:44,402 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:06:44,403 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-22 13:06:44,405 INFO L168 Benchmark]: Toolchain (without parser) took 465.34 ms. Allocated memory is still 117.4 MB. Free memory was 90.4 MB in the beginning and 90.0 MB in the end (delta: 438.8 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:44,407 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 79.7 MB. Free memory is still 41.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:06:44,408 INFO L168 Benchmark]: CACSL2BoogieTranslator took 461.81 ms. Allocated memory is still 117.4 MB. Free memory was 90.2 MB in the beginning and 90.0 MB in the end (delta: 206.1 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:44,411 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 79.7 MB. Free memory is still 41.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 461.81 ms. Allocated memory is still 117.4 MB. Free memory was 90.2 MB in the beginning and 90.0 MB in the end (delta: 206.1 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-22 13:06:46,629 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:06:46,631 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:06:46,669 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:06:46,670 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:06:46,676 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:06:46,679 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:06:46,684 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:06:46,687 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:06:46,695 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:06:46,696 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:06:46,701 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:06:46,702 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:06:46,704 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:06:46,706 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:06:46,707 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:06:46,708 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:06:46,709 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:06:46,711 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:06:46,718 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:06:46,720 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:06:46,721 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:06:46,722 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:06:46,723 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:06:46,727 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:06:46,727 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:06:46,727 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:06:46,729 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:06:46,729 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:06:46,730 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:06:46,731 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:06:46,732 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:06:46,732 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:06:46,733 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:06:46,735 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:06:46,735 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:06:46,736 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:06:46,736 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:06:46,736 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:06:46,737 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:06:46,738 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:06:46,738 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_574cae1b-3562-410a-9e2f-c9b135178734/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2020-11-22 13:06:46,766 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:06:46,766 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:06:46,767 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:06:46,767 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:06:46,768 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:06:46,768 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:06:46,768 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:06:46,768 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:06:46,768 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:06:46,769 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-22 13:06:46,769 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-22 13:06:46,770 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:06:46,770 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:06:46,770 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-22 13:06:46,770 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:06:46,770 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:06:46,771 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:06:46,771 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-22 13:06:46,771 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-22 13:06:46,771 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-22 13:06:46,771 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:06:46,771 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:06:46,772 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 13:06:46,772 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 13:06:46,772 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:06:46,802 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:06:46,802 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:06:46,802 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 13:06:46,802 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:06:46,803 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:06:46,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:06:46,803 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:06:46,803 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:06:46,804 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 13:06:46,804 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 13:06:46,804 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:06:46,804 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:06:46,804 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-vcloud-master/worker/run_dir_574cae1b-3562-410a-9e2f-c9b135178734/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_574cae1b-3562-410a-9e2f-c9b135178734/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c3780959fce78cf56ec9398e6f7b05938c23d68 [2020-11-22 13:06:47,139 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:06:47,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:06:47,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:06:47,167 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:06:47,167 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:06:47,168 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_574cae1b-3562-410a-9e2f-c9b135178734/bin/utaipan/../../sv-benchmarks/c/ldv-memsafety/memleaks_test9_1.i [2020-11-22 13:06:47,236 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_574cae1b-3562-410a-9e2f-c9b135178734/bin/utaipan/data/b10bbf73b/06a3ba74eb814c7481977aaeaba018c8/FLAGa77363273 [2020-11-22 13:06:47,843 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:06:47,844 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_574cae1b-3562-410a-9e2f-c9b135178734/sv-benchmarks/c/ldv-memsafety/memleaks_test9_1.i [2020-11-22 13:06:47,866 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_574cae1b-3562-410a-9e2f-c9b135178734/bin/utaipan/data/b10bbf73b/06a3ba74eb814c7481977aaeaba018c8/FLAGa77363273 [2020-11-22 13:06:48,099 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_574cae1b-3562-410a-9e2f-c9b135178734/bin/utaipan/data/b10bbf73b/06a3ba74eb814c7481977aaeaba018c8 [2020-11-22 13:06:48,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:06:48,105 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:06:48,110 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:06:48,111 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:06:48,115 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:06:48,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:06:48" (1/1) ... [2020-11-22 13:06:48,122 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fa48e08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:48, skipping insertion in model container [2020-11-22 13:06:48,123 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:06:48" (1/1) ... [2020-11-22 13:06:48,131 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:06:48,193 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:06:48,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:06:48,597 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-22 13:06:48,606 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:06:48,648 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:06:48,662 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:06:48,748 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:06:48,839 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:06:48,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:48 WrapperNode [2020-11-22 13:06:48,840 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:06:48,841 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:06:48,842 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:06:48,842 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:06:48,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:48" (1/1) ... [2020-11-22 13:06:48,873 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:48" (1/1) ... [2020-11-22 13:06:48,898 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:06:48,901 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:06:48,901 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:06:48,901 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:06:48,920 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:48" (1/1) ... [2020-11-22 13:06:48,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:48" (1/1) ... [2020-11-22 13:06:48,925 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:48" (1/1) ... [2020-11-22 13:06:48,928 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:48" (1/1) ... [2020-11-22 13:06:48,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:48" (1/1) ... [2020-11-22 13:06:48,944 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:48" (1/1) ... [2020-11-22 13:06:48,946 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:48" (1/1) ... [2020-11-22 13:06:48,949 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:06:48,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:06:48,950 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:06:48,950 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:06:48,950 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_574cae1b-3562-410a-9e2f-c9b135178734/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:06:49,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-22 13:06:49,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:06:49,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-22 13:06:49,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-11-22 13:06:49,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:06:49,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:06:49,438 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:06:49,440 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-11-22 13:06:49,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:06:49 BoogieIcfgContainer [2020-11-22 13:06:49,444 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:06:49,448 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:06:49,449 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:06:49,451 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:06:49,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:06:48" (1/3) ... [2020-11-22 13:06:49,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a412d77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:06:49, skipping insertion in model container [2020-11-22 13:06:49,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:48" (2/3) ... [2020-11-22 13:06:49,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a412d77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:06:49, skipping insertion in model container [2020-11-22 13:06:49,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:06:49" (3/3) ... [2020-11-22 13:06:49,459 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test9_1.i [2020-11-22 13:06:49,471 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:06:49,475 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-11-22 13:06:49,486 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-22 13:06:49,518 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:06:49,519 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-22 13:06:49,519 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:06:49,519 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:06:49,519 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:06:49,519 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:06:49,520 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:06:49,520 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:06:49,532 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-11-22 13:06:49,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-22 13:06:49,540 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:49,541 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:49,542 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-22 13:06:49,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:49,548 INFO L82 PathProgramCache]: Analyzing trace with hash 1804965381, now seen corresponding path program 1 times [2020-11-22 13:06:49,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:06:49,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1486852903] [2020-11-22 13:06:49,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_574cae1b-3562-410a-9e2f-c9b135178734/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-22 13:06:49,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:49,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-22 13:06:49,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:06:49,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:49,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:06:49,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:49,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1486852903] [2020-11-22 13:06:49,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:49,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-22 13:06:49,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947943552] [2020-11-22 13:06:49,776 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-22 13:06:49,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:06:49,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-22 13:06:49,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-22 13:06:49,794 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 6 states. [2020-11-22 13:06:49,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:49,844 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2020-11-22 13:06:49,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:06:49,846 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 7 [2020-11-22 13:06:49,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:49,855 INFO L225 Difference]: With dead ends: 11 [2020-11-22 13:06:49,855 INFO L226 Difference]: Without dead ends: 9 [2020-11-22 13:06:49,857 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:06:49,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-11-22 13:06:49,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-11-22 13:06:49,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-11-22 13:06:49,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2020-11-22 13:06:49,887 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2020-11-22 13:06:49,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:49,887 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2020-11-22 13:06:49,887 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-22 13:06:49,888 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2020-11-22 13:06:49,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-22 13:06:49,888 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:49,888 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:50,103 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 13:06:50,104 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2020-11-22 13:06:50,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:50,106 INFO L82 PathProgramCache]: Analyzing trace with hash 119360950, now seen corresponding path program 1 times [2020-11-22 13:06:50,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:06:50,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [365280383] [2020-11-22 13:06:50,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_574cae1b-3562-410a-9e2f-c9b135178734/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-22 13:06:50,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:06:50,196 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:06:50,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:06:50,219 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:06:50,262 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-22 13:06:50,263 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:06:50,488 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 13:06:50,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:06:50 BoogieIcfgContainer [2020-11-22 13:06:50,509 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:06:50,509 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:06:50,510 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:06:50,510 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:06:50,510 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:06:49" (3/4) ... [2020-11-22 13:06:50,513 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-22 13:06:50,513 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:06:50,515 INFO L168 Benchmark]: Toolchain (without parser) took 2409.38 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 54.6 MB in the beginning and 74.4 MB in the end (delta: -19.8 MB). Peak memory consumption was 2.9 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:50,520 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 90.2 MB. Free memory was 72.8 MB in the beginning and 72.7 MB in the end (delta: 77.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:06:50,524 INFO L168 Benchmark]: CACSL2BoogieTranslator took 730.09 ms. Allocated memory is still 90.2 MB. Free memory was 54.4 MB in the beginning and 44.1 MB in the end (delta: 10.3 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:50,525 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.75 ms. Allocated memory is still 90.2 MB. Free memory was 43.9 MB in the beginning and 41.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:50,532 INFO L168 Benchmark]: Boogie Preprocessor took 48.09 ms. Allocated memory is still 90.2 MB. Free memory was 41.9 MB in the beginning and 73.5 MB in the end (delta: -31.6 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:50,533 INFO L168 Benchmark]: RCFGBuilder took 494.88 ms. Allocated memory is still 90.2 MB. Free memory was 73.5 MB in the beginning and 59.2 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:50,534 INFO L168 Benchmark]: TraceAbstraction took 1061.32 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 58.4 MB in the beginning and 75.0 MB in the end (delta: -16.6 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:50,534 INFO L168 Benchmark]: Witness Printer took 4.05 ms. Allocated memory is still 111.1 MB. Free memory was 75.0 MB in the beginning and 74.4 MB in the end (delta: 578.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:06:50,542 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 90.2 MB. Free memory was 72.8 MB in the beginning and 72.7 MB in the end (delta: 77.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 730.09 ms. Allocated memory is still 90.2 MB. Free memory was 54.4 MB in the beginning and 44.1 MB in the end (delta: 10.3 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 58.75 ms. Allocated memory is still 90.2 MB. Free memory was 43.9 MB in the beginning and 41.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 48.09 ms. Allocated memory is still 90.2 MB. Free memory was 41.9 MB in the beginning and 73.5 MB in the end (delta: -31.6 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.1 GB. * RCFGBuilder took 494.88 ms. Allocated memory is still 90.2 MB. Free memory was 73.5 MB in the beginning and 59.2 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1061.32 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 58.4 MB in the beginning and 75.0 MB in the end (delta: -16.6 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Witness Printer took 4.05 ms. Allocated memory is still 111.1 MB. Free memory was 75.0 MB in the beginning and 74.4 MB in the end (delta: 578.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 772]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 772. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L757] int *a9; VAL [a9={0:0}, ldv_global_msg_list={3:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); VAL [a9={0:0}, ldv_global_msg_list={3:0}] [L759] a9 = (int *)ldv_malloc(sizeof(int)) [L760] return - -3; VAL [a9={1:0}, ldv_global_msg_list={3:0}] [L766] int ret = probe_9_2(); [L767] COND FALSE !(ret==0) VAL [a9={1:0}, ldv_global_msg_list={3:0}] [L770] a9 = 0 VAL [a9={0:0}, ldv_global_msg_list={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 9 SDtfs, 16 SDslu, 10 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 144 SizeOfPredicates, 2 NumberOfNonLiveVariables, 36 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 Received shutdown request...