./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P --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 165c3d31baf6e9e6eb3241886fc1e2aed511e6788979a2e699609d2c8b9e748b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:30:59,817 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:30:59,820 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:30:59,857 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:30:59,858 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:30:59,859 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:30:59,861 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:30:59,863 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:30:59,865 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:30:59,866 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:30:59,867 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:30:59,869 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:30:59,869 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:30:59,871 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:30:59,872 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:30:59,874 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:30:59,875 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:30:59,876 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:30:59,879 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:30:59,881 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:30:59,883 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:30:59,885 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:30:59,886 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:30:59,887 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:30:59,891 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:30:59,892 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:30:59,892 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:30:59,893 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:30:59,894 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:30:59,895 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:30:59,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:30:59,897 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:30:59,905 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:30:59,906 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:30:59,908 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:30:59,908 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:30:59,909 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:30:59,909 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:30:59,910 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:30:59,912 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:30:59,913 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:30:59,915 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-21 00:30:59,968 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:30:59,973 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:30:59,973 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:30:59,974 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:30:59,974 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:30:59,975 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:30:59,975 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:30:59,975 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:30:59,976 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:30:59,976 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:30:59,976 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:30:59,977 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:30:59,977 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:30:59,978 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:30:59,978 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:30:59,978 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:30:59,978 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:30:59,979 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:30:59,979 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-21 00:30:59,979 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-21 00:30:59,980 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:30:59,980 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 00:30:59,980 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 00:30:59,982 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:30:59,983 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 00:30:59,983 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:30:59,983 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-21 00:30:59,983 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-21 00:30:59,984 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-21 00:30:59,984 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:30:59,984 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-21 00:30:59,984 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 00:30:59,985 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:30:59,985 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:30:59,985 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:30:59,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:30:59,986 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:30:59,986 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:30:59,986 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:30:59,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:30:59,986 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:30:59,987 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:30:59,987 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_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 165c3d31baf6e9e6eb3241886fc1e2aed511e6788979a2e699609d2c8b9e748b [2021-11-21 00:31:00,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:31:00,283 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:31:00,286 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:31:00,287 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:31:00,289 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:31:00,290 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i [2021-11-21 00:31:00,388 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/data/5b84c6a92/ef4887e524394faaadca57ed15bd7b70/FLAGed2494b1a [2021-11-21 00:31:00,914 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:31:00,917 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i [2021-11-21 00:31:00,940 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/data/5b84c6a92/ef4887e524394faaadca57ed15bd7b70/FLAGed2494b1a [2021-11-21 00:31:01,224 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/data/5b84c6a92/ef4887e524394faaadca57ed15bd7b70 [2021-11-21 00:31:01,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:31:01,228 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:31:01,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:31:01,234 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:31:01,237 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:31:01,239 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:31:01" (1/1) ... [2021-11-21 00:31:01,240 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@114de398 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:31:01, skipping insertion in model container [2021-11-21 00:31:01,240 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:31:01" (1/1) ... [2021-11-21 00:31:01,250 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:31:01,296 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:31:01,680 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:31:01,694 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) [2021-11-21 00:31:01,695 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5f8e1d7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:31:01, skipping insertion in model container [2021-11-21 00:31:01,695 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:31:01,695 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-21 00:31:01,697 INFO L158 Benchmark]: Toolchain (without parser) took 467.84ms. Allocated memory is still 104.9MB. Free memory was 65.9MB in the beginning and 77.7MB in the end (delta: -11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-21 00:31:01,698 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 104.9MB. Free memory is still 84.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 00:31:01,699 INFO L158 Benchmark]: CACSL2BoogieTranslator took 461.53ms. Allocated memory is still 104.9MB. Free memory was 65.7MB in the beginning and 77.7MB in the end (delta: -12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-21 00:31:01,700 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 104.9MB. Free memory is still 84.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 461.53ms. Allocated memory is still 104.9MB. Free memory was 65.7MB in the beginning and 77.7MB in the end (delta: -12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 515]: 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... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P --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 165c3d31baf6e9e6eb3241886fc1e2aed511e6788979a2e699609d2c8b9e748b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:31:03,970 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:31:03,973 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:31:04,037 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:31:04,038 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:31:04,042 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:31:04,044 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:31:04,049 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:31:04,052 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:31:04,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:31:04,062 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:31:04,064 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:31:04,064 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:31:04,067 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:31:04,069 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:31:04,073 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:31:04,075 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:31:04,076 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:31:04,078 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:31:04,085 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:31:04,087 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:31:04,088 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:31:04,092 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:31:04,093 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:31:04,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:31:04,103 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:31:04,103 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:31:04,105 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:31:04,106 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:31:04,107 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:31:04,107 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:31:04,108 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:31:04,111 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:31:04,111 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:31:04,113 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:31:04,113 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:31:04,114 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:31:04,115 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:31:04,115 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:31:04,117 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:31:04,118 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:31:04,119 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-21 00:31:04,161 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:31:04,161 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:31:04,162 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:31:04,162 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:31:04,163 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:31:04,164 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:31:04,164 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:31:04,164 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:31:04,164 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:31:04,165 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:31:04,166 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:31:04,166 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:31:04,168 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-21 00:31:04,168 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-21 00:31:04,168 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:31:04,168 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 00:31:04,169 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 00:31:04,169 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:31:04,169 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 00:31:04,170 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:31:04,170 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-21 00:31:04,170 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-21 00:31:04,170 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-21 00:31:04,171 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:31:04,171 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-21 00:31:04,171 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-21 00:31:04,172 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-21 00:31:04,172 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 00:31:04,172 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:31:04,172 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:31:04,173 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-21 00:31:04,173 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:31:04,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:31:04,174 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:31:04,175 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:31:04,175 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-21 00:31:04,175 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-21 00:31:04,175 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:31:04,176 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:31:04,176 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_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 165c3d31baf6e9e6eb3241886fc1e2aed511e6788979a2e699609d2c8b9e748b [2021-11-21 00:31:04,657 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:31:04,689 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:31:04,692 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:31:04,693 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:31:04,694 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:31:04,695 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i [2021-11-21 00:31:04,774 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/data/2fd80d4c2/5988a97909a441f4b1c3d13274630afd/FLAG430a4925f [2021-11-21 00:31:05,338 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:31:05,339 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i [2021-11-21 00:31:05,363 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/data/2fd80d4c2/5988a97909a441f4b1c3d13274630afd/FLAG430a4925f [2021-11-21 00:31:05,639 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/data/2fd80d4c2/5988a97909a441f4b1c3d13274630afd [2021-11-21 00:31:05,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:31:05,645 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:31:05,649 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:31:05,650 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:31:05,654 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:31:05,655 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:31:05" (1/1) ... [2021-11-21 00:31:05,656 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b99aac4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:31:05, skipping insertion in model container [2021-11-21 00:31:05,657 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:31:05" (1/1) ... [2021-11-21 00:31:05,664 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:31:05,719 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:31:06,160 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:31:06,177 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-21 00:31:06,187 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:31:06,238 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:31:06,252 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:31:06,296 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:31:06,340 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:31:06,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:31:06 WrapperNode [2021-11-21 00:31:06,341 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:31:06,342 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:31:06,343 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:31:06,343 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:31:06,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:31:06" (1/1) ... [2021-11-21 00:31:06,376 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:31:06" (1/1) ... [2021-11-21 00:31:06,396 INFO L137 Inliner]: procedures = 118, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 49 [2021-11-21 00:31:06,397 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:31:06,397 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:31:06,397 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:31:06,398 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:31:06,406 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:31:06" (1/1) ... [2021-11-21 00:31:06,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:31:06" (1/1) ... [2021-11-21 00:31:06,409 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:31:06" (1/1) ... [2021-11-21 00:31:06,410 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:31:06" (1/1) ... [2021-11-21 00:31:06,416 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:31:06" (1/1) ... [2021-11-21 00:31:06,419 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:31:06" (1/1) ... [2021-11-21 00:31:06,421 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:31:06" (1/1) ... [2021-11-21 00:31:06,424 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:31:06,425 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:31:06,425 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:31:06,425 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:31:06,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:31:06" (1/1) ... [2021-11-21 00:31:06,433 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:31:06,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:31:06,456 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:31:06,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:31:06,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 00:31:06,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:31:06,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-21 00:31:06,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:31:06,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:31:06,620 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:31:06,622 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:31:06,807 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:31:06,812 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:31:06,813 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-21 00:31:06,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:31:06 BoogieIcfgContainer [2021-11-21 00:31:06,815 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:31:06,817 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:31:06,817 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:31:06,820 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:31:06,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:31:05" (1/3) ... [2021-11-21 00:31:06,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64e58304 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:31:06, skipping insertion in model container [2021-11-21 00:31:06,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:31:06" (2/3) ... [2021-11-21 00:31:06,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64e58304 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:31:06, skipping insertion in model container [2021-11-21 00:31:06,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:31:06" (3/3) ... [2021-11-21 00:31:06,823 INFO L111 eAbstractionObserver]: Analyzing ICFG array-realloc-3.i [2021-11-21 00:31:06,828 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:31:06,828 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-21 00:31:06,873 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:31:06,880 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 00:31:06,880 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-21 00:31:06,919 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:31:06,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-21 00:31:06,925 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:31:06,926 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-21 00:31:06,926 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-21 00:31:06,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:31:06,945 INFO L85 PathProgramCache]: Analyzing trace with hash 925638, now seen corresponding path program 1 times [2021-11-21 00:31:06,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:31:06,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2047240487] [2021-11-21 00:31:06,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:31:06,969 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:31:06,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:31:06,972 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:31:06,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-21 00:31:07,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:31:07,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-21 00:31:07,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:31:07,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:31:07,119 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:31:07,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:31:07,132 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:31:07,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2047240487] [2021-11-21 00:31:07,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2047240487] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:31:07,134 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:31:07,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-21 00:31:07,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874205422] [2021-11-21 00:31:07,137 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:31:07,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:31:07,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:31:07,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:31:07,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:31:07,168 INFO L87 Difference]: Start difference. First operand has 17 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:31:07,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:31:07,216 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2021-11-21 00:31:07,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:31:07,219 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-21 00:31:07,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:31:07,226 INFO L225 Difference]: With dead ends: 18 [2021-11-21 00:31:07,226 INFO L226 Difference]: Without dead ends: 15 [2021-11-21 00:31:07,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:31:07,231 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 2 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:31:07,233 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 27 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 00:31:07,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-11-21 00:31:07,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-11-21 00:31:07,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:31:07,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2021-11-21 00:31:07,261 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 4 [2021-11-21 00:31:07,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:31:07,261 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-11-21 00:31:07,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:31:07,262 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2021-11-21 00:31:07,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-21 00:31:07,262 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:31:07,262 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-21 00:31:07,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-21 00:31:07,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:31:07,473 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-21 00:31:07,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:31:07,475 INFO L85 PathProgramCache]: Analyzing trace with hash 28695810, now seen corresponding path program 1 times [2021-11-21 00:31:07,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:31:07,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [379970906] [2021-11-21 00:31:07,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:31:07,476 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:31:07,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:31:07,477 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:31:07,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-21 00:31:07,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:31:07,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-21 00:31:07,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:31:07,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:31:07,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:31:07,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:31:07,589 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:31:07,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [379970906] [2021-11-21 00:31:07,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [379970906] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:31:07,591 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:31:07,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-21 00:31:07,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301560522] [2021-11-21 00:31:07,591 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:31:07,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:31:07,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:31:07,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:31:07,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:31:07,594 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:31:07,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:31:07,604 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2021-11-21 00:31:07,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:31:07,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-21 00:31:07,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:31:07,606 INFO L225 Difference]: With dead ends: 15 [2021-11-21 00:31:07,607 INFO L226 Difference]: Without dead ends: 15 [2021-11-21 00:31:07,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:31:07,610 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 13 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:31:07,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 16 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 00:31:07,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-11-21 00:31:07,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-11-21 00:31:07,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:31:07,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2021-11-21 00:31:07,621 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 5 [2021-11-21 00:31:07,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:31:07,622 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-11-21 00:31:07,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:31:07,623 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2021-11-21 00:31:07,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 00:31:07,624 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:31:07,625 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:31:07,638 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-21 00:31:07,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:31:07,835 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-21 00:31:07,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:31:07,836 INFO L85 PathProgramCache]: Analyzing trace with hash 179641051, now seen corresponding path program 1 times [2021-11-21 00:31:07,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:31:07,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1204494572] [2021-11-21 00:31:07,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:31:07,837 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:31:07,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:31:07,838 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:31:07,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-21 00:31:07,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:31:07,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-21 00:31:07,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:31:07,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:31:07,998 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:31:08,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:31:08,041 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:31:08,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1204494572] [2021-11-21 00:31:08,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1204494572] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:31:08,042 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:31:08,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-21 00:31:08,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130382874] [2021-11-21 00:31:08,043 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:31:08,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 00:31:08,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:31:08,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 00:31:08,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-21 00:31:08,045 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:31:08,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:31:08,102 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2021-11-21 00:31:08,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:31:08,103 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-21 00:31:08,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:31:08,103 INFO L225 Difference]: With dead ends: 16 [2021-11-21 00:31:08,103 INFO L226 Difference]: Without dead ends: 16 [2021-11-21 00:31:08,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-21 00:31:08,105 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 26 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:31:08,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 30 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 00:31:08,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-11-21 00:31:08,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-11-21 00:31:08,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 15 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:31:08,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2021-11-21 00:31:08,118 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 8 [2021-11-21 00:31:08,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:31:08,118 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2021-11-21 00:31:08,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:31:08,119 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2021-11-21 00:31:08,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 00:31:08,119 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:31:08,119 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:31:08,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-21 00:31:08,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:31:08,331 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-21 00:31:08,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:31:08,332 INFO L85 PathProgramCache]: Analyzing trace with hash 179688781, now seen corresponding path program 1 times [2021-11-21 00:31:08,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:31:08,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [445573479] [2021-11-21 00:31:08,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:31:08,333 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:31:08,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:31:08,334 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:31:08,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-21 00:31:08,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:31:08,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-21 00:31:08,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:31:08,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:31:08,439 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:31:08,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:31:08,460 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:31:08,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [445573479] [2021-11-21 00:31:08,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [445573479] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:31:08,461 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:31:08,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-21 00:31:08,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164003014] [2021-11-21 00:31:08,461 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:31:08,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:31:08,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:31:08,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:31:08,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:31:08,463 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:31:08,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:31:08,515 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2021-11-21 00:31:08,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 00:31:08,516 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-21 00:31:08,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:31:08,517 INFO L225 Difference]: With dead ends: 27 [2021-11-21 00:31:08,517 INFO L226 Difference]: Without dead ends: 27 [2021-11-21 00:31:08,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-21 00:31:08,519 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 41 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:31:08,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 40 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 00:31:08,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-11-21 00:31:08,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 17. [2021-11-21 00:31:08,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 16 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:31:08,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2021-11-21 00:31:08,530 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 8 [2021-11-21 00:31:08,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:31:08,530 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-11-21 00:31:08,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:31:08,531 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2021-11-21 00:31:08,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 00:31:08,531 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:31:08,532 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:31:08,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-21 00:31:08,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:31:08,743 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-21 00:31:08,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:31:08,744 INFO L85 PathProgramCache]: Analyzing trace with hash 179690703, now seen corresponding path program 1 times [2021-11-21 00:31:08,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:31:08,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [932726654] [2021-11-21 00:31:08,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:31:08,745 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:31:08,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:31:08,746 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:31:08,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-21 00:31:08,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:31:08,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:31:08,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:31:08,868 INFO L354 Elim1Store]: treesize reduction 10, result has 50.0 percent of original size [2021-11-21 00:31:08,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 16 [2021-11-21 00:31:08,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:31:08,894 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:31:08,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:31:08,914 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:31:08,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [932726654] [2021-11-21 00:31:08,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [932726654] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:31:08,914 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:31:08,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-21 00:31:08,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097623623] [2021-11-21 00:31:08,915 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:31:08,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:31:08,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:31:08,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:31:08,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:31:08,916 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:31:08,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:31:08,979 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2021-11-21 00:31:08,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:31:08,979 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-21 00:31:08,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:31:08,980 INFO L225 Difference]: With dead ends: 16 [2021-11-21 00:31:08,980 INFO L226 Difference]: Without dead ends: 16 [2021-11-21 00:31:08,980 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:31:08,981 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 15 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:31:08,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 12 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 00:31:08,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-11-21 00:31:08,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-11-21 00:31:08,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:31:08,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2021-11-21 00:31:08,985 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 8 [2021-11-21 00:31:08,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:31:08,985 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2021-11-21 00:31:08,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:31:08,986 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2021-11-21 00:31:08,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 00:31:08,986 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:31:08,986 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:31:09,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-21 00:31:09,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:31:09,195 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-21 00:31:09,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:31:09,196 INFO L85 PathProgramCache]: Analyzing trace with hash 179690704, now seen corresponding path program 1 times [2021-11-21 00:31:09,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:31:09,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2081443460] [2021-11-21 00:31:09,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:31:09,197 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:31:09,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:31:09,197 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:31:09,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-21 00:31:09,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:31:09,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-21 00:31:09,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:31:09,325 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-21 00:31:09,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:31:09,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:31:09,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:31:09,745 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:31:09,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2081443460] [2021-11-21 00:31:09,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2081443460] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:31:09,745 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:31:09,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-11-21 00:31:09,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503303240] [2021-11-21 00:31:09,746 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:31:09,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-21 00:31:09,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:31:09,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-21 00:31:09,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-21 00:31:09,747 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:31:10,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:31:10,815 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2021-11-21 00:31:10,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-21 00:31:10,816 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-21 00:31:10,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:31:10,817 INFO L225 Difference]: With dead ends: 42 [2021-11-21 00:31:10,817 INFO L226 Difference]: Without dead ends: 42 [2021-11-21 00:31:10,818 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2021-11-21 00:31:10,819 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 96 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-21 00:31:10,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 36 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-21 00:31:10,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-11-21 00:31:10,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 28. [2021-11-21 00:31:10,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 27 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:31:10,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2021-11-21 00:31:10,824 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 8 [2021-11-21 00:31:10,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:31:10,824 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2021-11-21 00:31:10,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:31:10,825 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2021-11-21 00:31:10,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-21 00:31:10,825 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:31:10,825 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:31:10,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-21 00:31:11,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:31:11,026 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-21 00:31:11,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:31:11,027 INFO L85 PathProgramCache]: Analyzing trace with hash 702944005, now seen corresponding path program 1 times [2021-11-21 00:31:11,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:31:11,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1618539141] [2021-11-21 00:31:11,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:31:11,028 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:31:11,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:31:11,029 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:31:11,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-21 00:31:11,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 00:31:11,114 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-21 00:31:11,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 00:31:11,203 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-11-21 00:31:11,204 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-21 00:31:11,205 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (2 of 3 remaining) [2021-11-21 00:31:11,207 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION (1 of 3 remaining) [2021-11-21 00:31:11,207 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION (0 of 3 remaining) [2021-11-21 00:31:11,233 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-21 00:31:11,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:31:11,419 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:31:11,421 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-21 00:31:11,430 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-21 00:31:11,431 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-21 00:31:11,431 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-21 00:31:11,432 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-21 00:31:11,432 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-21 00:31:11,432 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-21 00:31:11,433 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-21 00:31:11,433 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-21 00:31:11,433 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-21 00:31:11,434 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-21 00:31:11,434 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-21 00:31:11,435 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-21 00:31:11,435 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-21 00:31:11,435 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-21 00:31:11,436 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-21 00:31:11,436 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-21 00:31:11,436 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-21 00:31:11,436 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-21 00:31:11,437 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-21 00:31:11,437 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-21 00:31:11,438 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-21 00:31:11,438 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-21 00:31:11,438 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-21 00:31:11,439 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-21 00:31:11,439 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-21 00:31:11,439 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-21 00:31:11,440 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-21 00:31:11,440 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-21 00:31:11,440 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-21 00:31:11,440 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-21 00:31:11,441 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-21 00:31:11,441 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-21 00:31:11,441 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled [2021-11-21 00:31:11,442 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled [2021-11-21 00:31:11,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 12:31:11 BoogieIcfgContainer [2021-11-21 00:31:11,464 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-21 00:31:11,465 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 00:31:11,465 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 00:31:11,465 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 00:31:11,466 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:31:06" (3/4) ... [2021-11-21 00:31:11,469 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-21 00:31:11,469 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 00:31:11,470 INFO L158 Benchmark]: Toolchain (without parser) took 5825.04ms. Allocated memory was 60.8MB in the beginning and 75.5MB in the end (delta: 14.7MB). Free memory was 37.1MB in the beginning and 42.7MB in the end (delta: -5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-21 00:31:11,471 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 60.8MB. Free memory is still 41.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 00:31:11,471 INFO L158 Benchmark]: CACSL2BoogieTranslator took 692.30ms. Allocated memory is still 60.8MB. Free memory was 36.9MB in the beginning and 33.2MB in the end (delta: 3.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-21 00:31:11,471 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.33ms. Allocated memory is still 60.8MB. Free memory was 33.2MB in the beginning and 31.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 00:31:11,472 INFO L158 Benchmark]: Boogie Preprocessor took 27.13ms. Allocated memory is still 60.8MB. Free memory was 31.4MB in the beginning and 30.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 00:31:11,472 INFO L158 Benchmark]: RCFGBuilder took 389.63ms. Allocated memory was 60.8MB in the beginning and 75.5MB in the end (delta: 14.7MB). Free memory was 29.8MB in the beginning and 50.5MB in the end (delta: -20.7MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2021-11-21 00:31:11,473 INFO L158 Benchmark]: TraceAbstraction took 4647.86ms. Allocated memory is still 75.5MB. Free memory was 50.2MB in the beginning and 43.2MB in the end (delta: 7.0MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2021-11-21 00:31:11,473 INFO L158 Benchmark]: Witness Printer took 4.59ms. Allocated memory is still 75.5MB. Free memory was 43.2MB in the beginning and 42.7MB in the end (delta: 496.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 00:31:11,475 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 60.8MB. Free memory is still 41.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 692.30ms. Allocated memory is still 60.8MB. Free memory was 36.9MB in the beginning and 33.2MB in the end (delta: 3.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.33ms. Allocated memory is still 60.8MB. Free memory was 33.2MB in the beginning and 31.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.13ms. Allocated memory is still 60.8MB. Free memory was 31.4MB in the beginning and 30.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 389.63ms. Allocated memory was 60.8MB in the beginning and 75.5MB in the end (delta: 14.7MB). Free memory was 29.8MB in the beginning and 50.5MB in the end (delta: -20.7MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. * TraceAbstraction took 4647.86ms. Allocated memory is still 75.5MB. Free memory was 50.2MB in the beginning and 43.2MB in the end (delta: 7.0MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * Witness Printer took 4.59ms. Allocated memory is still 75.5MB. Free memory was 43.2MB in the beginning and 42.7MB in the end (delta: 496.8kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res#1 : $Pointer$ not handled * 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: 525]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 525. Possible FailurePath: [L512] int num; [L513] int ind, newsize, i = 1; VAL [i=1, ind=0, newsize=0, num=0] [L526] num = __VERIFIER_nondet_int() [L527] COND FALSE !(!(num > 0 && num < 100)) [L530] int *a = (int *)malloc(sizeof(int)); [L531] COND FALSE !(a == ((void *)0)) [L534] newsize = 0 [L535] CALL expandArray(a) [L515] int *a = (int *)arg; VAL [a={1:0}, arg={1:0}, arg={1:0}, i=1, ind=0, newsize=0, num=1] [L516] COND TRUE newsize < num [L517] newsize = newsize + 1 [L518] int *b = ((void *)0); [L519] EXPR, FCALL realloc(a, sizeof(int) * newsize) [L519] b = realloc(a, sizeof(int) * newsize) [L520] b[newsize - 1] = i VAL [a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L521] a = b VAL [a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L516] COND FALSE !(newsize < num) VAL [a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L523] return 0; VAL [\result={0:0}, a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L535] RET expandArray(a) [L536] return 0; VAL [\old(argc)=5, \result=0, a={1:0}, argc=5, argv={7:6}, argv={7:6}, i=1, ind=0, newsize=1, num=1] - UnprovableResult [Line: 520]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 520]: 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 1 procedures, 17 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 4.5s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 193 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 193 mSDsluCounter, 161 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 81 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 131 IncrementalHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 80 mSDtfsCounter, 131 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=6, InterpolantAutomatonStates: 33, 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, 6 MinimizatonAttempts, 24 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 253 SizeOfPredicates, 12 NumberOfNonLiveVariables, 246 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 [2021-11-21 00:31:11,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69aacfb1-d7c8-46d1-83b4-9f0b77ebe1b1/bin/utaipan-TEXQjIfE4P/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 Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample