./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7ad0314b-e6f4-4118-b22e-e557ecd8e073/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7ad0314b-e6f4-4118-b22e-e557ecd8e073/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7ad0314b-e6f4-4118-b22e-e557ecd8e073/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7ad0314b-e6f4-4118-b22e-e557ecd8e073/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_7ad0314b-e6f4-4118-b22e-e557ecd8e073/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7ad0314b-e6f4-4118-b22e-e557ecd8e073/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash eb6bcc62184a60bbcb9e0528a455aeb84b21f101 ............................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7ad0314b-e6f4-4118-b22e-e557ecd8e073/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7ad0314b-e6f4-4118-b22e-e557ecd8e073/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7ad0314b-e6f4-4118-b22e-e557ecd8e073/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7ad0314b-e6f4-4118-b22e-e557ecd8e073/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_7ad0314b-e6f4-4118-b22e-e557ecd8e073/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7ad0314b-e6f4-4118-b22e-e557ecd8e073/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash eb6bcc62184a60bbcb9e0528a455aeb84b21f101 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 10:18:30,275 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 10:18:30,277 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 10:18:30,304 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 10:18:30,305 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 10:18:30,306 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 10:18:30,313 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 10:18:30,315 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 10:18:30,317 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 10:18:30,318 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 10:18:30,319 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 10:18:30,320 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 10:18:30,320 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 10:18:30,321 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 10:18:30,322 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 10:18:30,323 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 10:18:30,324 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 10:18:30,325 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 10:18:30,326 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 10:18:30,328 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 10:18:30,330 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 10:18:30,331 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 10:18:30,333 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 10:18:30,334 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 10:18:30,337 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 10:18:30,338 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 10:18:30,338 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 10:18:30,339 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 10:18:30,340 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 10:18:30,341 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 10:18:30,341 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 10:18:30,342 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 10:18:30,343 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 10:18:30,343 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 10:18:30,344 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 10:18:30,344 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 10:18:30,345 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 10:18:30,345 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 10:18:30,345 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 10:18:30,346 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 10:18:30,347 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 10:18:30,347 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7ad0314b-e6f4-4118-b22e-e557ecd8e073/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2020-12-09 10:18:30,366 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 10:18:30,366 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 10:18:30,367 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 10:18:30,367 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 10:18:30,367 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 10:18:30,367 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 10:18:30,367 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 10:18:30,367 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 10:18:30,367 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 10:18:30,368 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 10:18:30,368 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 10:18:30,368 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 10:18:30,368 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 10:18:30,368 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 10:18:30,368 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 10:18:30,369 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-09 10:18:30,369 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-09 10:18:30,369 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 10:18:30,369 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 10:18:30,369 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-09 10:18:30,369 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 10:18:30,369 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 10:18:30,370 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 10:18:30,370 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-09 10:18:30,370 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-09 10:18:30,370 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-09 10:18:30,370 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 10:18:30,370 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 10:18:30,370 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 10:18:30,370 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 10:18:30,371 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 10:18:30,371 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 10:18:30,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 10:18:30,371 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 10:18:30,371 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 10:18:30,371 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 10:18:30,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 10:18:30,371 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 10:18:30,372 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 10:18:30,372 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_7ad0314b-e6f4-4118-b22e-e557ecd8e073/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7ad0314b-e6f4-4118-b22e-e557ecd8e073/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb6bcc62184a60bbcb9e0528a455aeb84b21f101 [2020-12-09 10:18:30,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 10:18:30,560 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 10:18:30,562 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 10:18:30,563 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 10:18:30,563 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 10:18:30,564 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7ad0314b-e6f4-4118-b22e-e557ecd8e073/bin/utaipan/../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2020-12-09 10:18:30,604 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7ad0314b-e6f4-4118-b22e-e557ecd8e073/bin/utaipan/data/6f4ae8d8d/46f0cebbd5de48a5bc84892625afe7a5/FLAGb5ddf5817 [2020-12-09 10:18:31,011 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 10:18:31,012 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7ad0314b-e6f4-4118-b22e-e557ecd8e073/sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2020-12-09 10:18:31,022 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7ad0314b-e6f4-4118-b22e-e557ecd8e073/bin/utaipan/data/6f4ae8d8d/46f0cebbd5de48a5bc84892625afe7a5/FLAGb5ddf5817 [2020-12-09 10:18:31,031 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7ad0314b-e6f4-4118-b22e-e557ecd8e073/bin/utaipan/data/6f4ae8d8d/46f0cebbd5de48a5bc84892625afe7a5 [2020-12-09 10:18:31,033 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 10:18:31,034 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 10:18:31,035 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 10:18:31,035 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 10:18:31,038 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 10:18:31,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:18:31" (1/1) ... [2020-12-09 10:18:31,040 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24694097 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:18:31, skipping insertion in model container [2020-12-09 10:18:31,040 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:18:31" (1/1) ... [2020-12-09 10:18:31,047 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 10:18:31,083 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 10:18:31,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 10:18:31,330 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2020-12-09 10:18:31,330 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@445f97b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:18:31, skipping insertion in model container [2020-12-09 10:18:31,331 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 10:18:31,331 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-12-09 10:18:31,332 INFO L168 Benchmark]: Toolchain (without parser) took 297.71 ms. Allocated memory is still 96.5 MB. Free memory was 67.2 MB in the beginning and 70.0 MB in the end (delta: -2.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 10:18:31,333 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 96.5 MB. Free memory is still 61.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 10:18:31,333 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.03 ms. Allocated memory is still 96.5 MB. Free memory was 66.9 MB in the beginning and 70.2 MB in the end (delta: -3.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 10:18:31,334 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 96.5 MB. Free memory is still 61.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 296.03 ms. Allocated memory is still 96.5 MB. Free memory was 66.9 MB in the beginning and 70.2 MB in the end (delta: -3.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2020-12-09 10:18:32,662 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 10:18:32,663 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 10:18:32,684 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 10:18:32,685 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 10:18:32,686 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 10:18:32,687 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 10:18:32,689 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 10:18:32,691 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 10:18:32,691 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 10:18:32,692 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 10:18:32,705 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 10:18:32,705 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 10:18:32,706 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 10:18:32,707 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 10:18:32,708 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 10:18:32,709 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 10:18:32,710 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 10:18:32,712 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 10:18:32,713 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 10:18:32,715 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 10:18:32,716 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 10:18:32,717 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 10:18:32,718 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 10:18:32,720 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 10:18:32,721 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 10:18:32,721 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 10:18:32,722 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 10:18:32,722 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 10:18:32,723 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 10:18:32,724 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 10:18:32,724 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 10:18:32,725 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 10:18:32,726 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 10:18:32,727 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 10:18:32,727 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 10:18:32,728 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 10:18:32,728 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 10:18:32,728 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 10:18:32,729 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 10:18:32,729 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 10:18:32,730 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7ad0314b-e6f4-4118-b22e-e557ecd8e073/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2020-12-09 10:18:32,747 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 10:18:32,747 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 10:18:32,748 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 10:18:32,748 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 10:18:32,748 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 10:18:32,748 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 10:18:32,748 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 10:18:32,748 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 10:18:32,748 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 10:18:32,749 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-09 10:18:32,749 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-09 10:18:32,749 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 10:18:32,749 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 10:18:32,750 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-09 10:18:32,750 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 10:18:32,750 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 10:18:32,750 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 10:18:32,750 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-09 10:18:32,750 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-09 10:18:32,750 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-09 10:18:32,750 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 10:18:32,751 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 10:18:32,751 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 10:18:32,751 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 10:18:32,751 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 10:18:32,751 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 10:18:32,751 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 10:18:32,751 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 10:18:32,751 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 10:18:32,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 10:18:32,752 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 10:18:32,752 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 10:18:32,752 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 10:18:32,752 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 10:18:32,752 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 10:18:32,752 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 10:18:32,753 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_7ad0314b-e6f4-4118-b22e-e557ecd8e073/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7ad0314b-e6f4-4118-b22e-e557ecd8e073/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb6bcc62184a60bbcb9e0528a455aeb84b21f101 [2020-12-09 10:18:32,965 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 10:18:32,979 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 10:18:32,981 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 10:18:32,982 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 10:18:32,982 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 10:18:32,983 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7ad0314b-e6f4-4118-b22e-e557ecd8e073/bin/utaipan/../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2020-12-09 10:18:33,027 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7ad0314b-e6f4-4118-b22e-e557ecd8e073/bin/utaipan/data/57f0fb5c4/76d0d6afb4324898882a3c4039b04d35/FLAGd244964e5 [2020-12-09 10:18:33,449 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 10:18:33,450 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7ad0314b-e6f4-4118-b22e-e557ecd8e073/sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2020-12-09 10:18:33,463 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7ad0314b-e6f4-4118-b22e-e557ecd8e073/bin/utaipan/data/57f0fb5c4/76d0d6afb4324898882a3c4039b04d35/FLAGd244964e5 [2020-12-09 10:18:33,475 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7ad0314b-e6f4-4118-b22e-e557ecd8e073/bin/utaipan/data/57f0fb5c4/76d0d6afb4324898882a3c4039b04d35 [2020-12-09 10:18:33,477 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 10:18:33,479 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 10:18:33,480 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 10:18:33,480 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 10:18:33,483 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 10:18:33,484 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:18:33" (1/1) ... [2020-12-09 10:18:33,485 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ce42f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:18:33, skipping insertion in model container [2020-12-09 10:18:33,486 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:18:33" (1/1) ... [2020-12-09 10:18:33,492 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 10:18:33,530 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 10:18:33,830 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 10:18:33,848 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-12-09 10:18:33,857 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 10:18:33,894 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 10:18:33,900 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 10:18:33,934 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 10:18:34,000 INFO L208 MainTranslator]: Completed translation [2020-12-09 10:18:34,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:18:34 WrapperNode [2020-12-09 10:18:34,001 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 10:18:34,001 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 10:18:34,002 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 10:18:34,002 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 10:18:34,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:18:34" (1/1) ... [2020-12-09 10:18:34,030 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:18:34" (1/1) ... [2020-12-09 10:18:34,047 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 10:18:34,048 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 10:18:34,048 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 10:18:34,048 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 10:18:34,054 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:18:34" (1/1) ... [2020-12-09 10:18:34,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:18:34" (1/1) ... [2020-12-09 10:18:34,057 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:18:34" (1/1) ... [2020-12-09 10:18:34,058 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:18:34" (1/1) ... [2020-12-09 10:18:34,064 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:18:34" (1/1) ... [2020-12-09 10:18:34,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:18:34" (1/1) ... [2020-12-09 10:18:34,068 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:18:34" (1/1) ... [2020-12-09 10:18:34,070 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 10:18:34,071 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 10:18:34,072 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 10:18:34,072 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 10:18:34,072 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:18:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ad0314b-e6f4-4118-b22e-e557ecd8e073/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 10:18:34,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-09 10:18:34,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 10:18:34,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 10:18:34,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-09 10:18:34,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 10:18:34,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 10:18:34,283 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 10:18:34,283 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-09 10:18:34,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:18:34 BoogieIcfgContainer [2020-12-09 10:18:34,285 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 10:18:34,286 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 10:18:34,286 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 10:18:34,288 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 10:18:34,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 10:18:33" (1/3) ... [2020-12-09 10:18:34,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f80841 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:18:34, skipping insertion in model container [2020-12-09 10:18:34,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:18:34" (2/3) ... [2020-12-09 10:18:34,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f80841 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:18:34, skipping insertion in model container [2020-12-09 10:18:34,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:18:34" (3/3) ... [2020-12-09 10:18:34,290 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test4-1.i [2020-12-09 10:18:34,300 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 10:18:34,302 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-12-09 10:18:34,309 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-09 10:18:34,323 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 10:18:34,323 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-09 10:18:34,323 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 10:18:34,323 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 10:18:34,323 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 10:18:34,323 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 10:18:34,323 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 10:18:34,324 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 10:18:34,331 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-12-09 10:18:34,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-09 10:18:34,335 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:18:34,336 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-09 10:18:34,336 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-09 10:18:34,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:18:34,340 INFO L82 PathProgramCache]: Analyzing trace with hash 889509194, now seen corresponding path program 1 times [2020-12-09 10:18:34,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:18:34,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2059350229] [2020-12-09 10:18:34,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ad0314b-e6f4-4118-b22e-e557ecd8e073/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-09 10:18:34,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:18:34,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-09 10:18:34,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:18:34,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:18:34,453 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 10:18:34,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2059350229] [2020-12-09 10:18:34,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:18:34,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 10:18:34,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284471337] [2020-12-09 10:18:34,458 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 10:18:34,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 10:18:34,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 10:18:34,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 10:18:34,469 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 4 states. [2020-12-09 10:18:34,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:18:34,515 INFO L93 Difference]: Finished difference Result 53 states and 53 transitions. [2020-12-09 10:18:34,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 10:18:34,516 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-12-09 10:18:34,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:18:34,524 INFO L225 Difference]: With dead ends: 53 [2020-12-09 10:18:34,524 INFO L226 Difference]: Without dead ends: 45 [2020-12-09 10:18:34,525 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 10:18:34,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-12-09 10:18:34,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 17. [2020-12-09 10:18:34,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-12-09 10:18:34,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2020-12-09 10:18:34,554 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 6 [2020-12-09 10:18:34,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:18:34,554 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2020-12-09 10:18:34,554 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 10:18:34,555 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2020-12-09 10:18:34,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-09 10:18:34,555 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:18:34,555 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-09 10:18:34,756 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 10:18:34,757 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-09 10:18:34,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:18:34,758 INFO L82 PathProgramCache]: Analyzing trace with hash 889568776, now seen corresponding path program 1 times [2020-12-09 10:18:34,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:18:34,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [519016388] [2020-12-09 10:18:34,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ad0314b-e6f4-4118-b22e-e557ecd8e073/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-09 10:18:34,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:18:34,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 10:18:34,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:18:34,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:18:34,871 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 10:18:34,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [519016388] [2020-12-09 10:18:34,871 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:18:34,871 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 10:18:34,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992619963] [2020-12-09 10:18:34,873 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 10:18:34,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 10:18:34,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 10:18:34,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 10:18:34,874 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 3 states. [2020-12-09 10:18:34,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:18:34,900 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2020-12-09 10:18:34,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 10:18:34,900 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-12-09 10:18:34,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:18:34,901 INFO L225 Difference]: With dead ends: 26 [2020-12-09 10:18:34,901 INFO L226 Difference]: Without dead ends: 25 [2020-12-09 10:18:34,901 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 10:18:34,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-12-09 10:18:34,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 15. [2020-12-09 10:18:34,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-12-09 10:18:34,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2020-12-09 10:18:34,904 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 6 [2020-12-09 10:18:34,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:18:34,904 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2020-12-09 10:18:34,904 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 10:18:34,904 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2020-12-09 10:18:34,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-09 10:18:34,904 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:18:34,904 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:18:35,105 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 10:18:35,107 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-09 10:18:35,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:18:35,109 INFO L82 PathProgramCache]: Analyzing trace with hash 119384781, now seen corresponding path program 1 times [2020-12-09 10:18:35,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:18:35,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [736821957] [2020-12-09 10:18:35,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ad0314b-e6f4-4118-b22e-e557ecd8e073/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-09 10:18:35,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:18:35,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 10:18:35,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:18:35,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:18:35,180 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 10:18:35,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [736821957] [2020-12-09 10:18:35,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:18:35,181 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 10:18:35,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909349733] [2020-12-09 10:18:35,182 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 10:18:35,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 10:18:35,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 10:18:35,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 10:18:35,183 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 4 states. [2020-12-09 10:18:35,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:18:35,203 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2020-12-09 10:18:35,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 10:18:35,203 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-12-09 10:18:35,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:18:35,204 INFO L225 Difference]: With dead ends: 14 [2020-12-09 10:18:35,204 INFO L226 Difference]: Without dead ends: 14 [2020-12-09 10:18:35,204 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 10:18:35,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-12-09 10:18:35,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-12-09 10:18:35,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-12-09 10:18:35,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2020-12-09 10:18:35,207 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 8 [2020-12-09 10:18:35,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:18:35,207 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2020-12-09 10:18:35,207 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 10:18:35,207 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2020-12-09 10:18:35,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 10:18:35,208 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:18:35,208 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:18:35,408 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 10:18:35,410 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-09 10:18:35,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:18:35,412 INFO L82 PathProgramCache]: Analyzing trace with hash -594039032, now seen corresponding path program 1 times [2020-12-09 10:18:35,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:18:35,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [698608910] [2020-12-09 10:18:35,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ad0314b-e6f4-4118-b22e-e557ecd8e073/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-12-09 10:18:35,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:18:35,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-09 10:18:35,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:18:35,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:18:35,521 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 10:18:35,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [698608910] [2020-12-09 10:18:35,521 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:18:35,521 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 10:18:35,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033547309] [2020-12-09 10:18:35,522 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 10:18:35,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 10:18:35,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 10:18:35,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 10:18:35,523 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 5 states. [2020-12-09 10:18:35,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:18:35,559 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2020-12-09 10:18:35,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 10:18:35,560 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-12-09 10:18:35,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:18:35,560 INFO L225 Difference]: With dead ends: 22 [2020-12-09 10:18:35,560 INFO L226 Difference]: Without dead ends: 22 [2020-12-09 10:18:35,560 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-12-09 10:18:35,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-12-09 10:18:35,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 18. [2020-12-09 10:18:35,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-12-09 10:18:35,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2020-12-09 10:18:35,562 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 9 [2020-12-09 10:18:35,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:18:35,563 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2020-12-09 10:18:35,563 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 10:18:35,563 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2020-12-09 10:18:35,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 10:18:35,563 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:18:35,563 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:18:35,764 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-09 10:18:35,765 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-09 10:18:35,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:18:35,766 INFO L82 PathProgramCache]: Analyzing trace with hash -594098614, now seen corresponding path program 1 times [2020-12-09 10:18:35,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:18:35,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [751808793] [2020-12-09 10:18:35,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ad0314b-e6f4-4118-b22e-e557ecd8e073/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-12-09 10:18:35,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:18:35,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 10:18:35,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:18:35,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:18:35,979 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 10:18:35,979 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [751808793] [2020-12-09 10:18:35,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:18:35,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 10:18:35,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426490118] [2020-12-09 10:18:35,980 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 10:18:35,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 10:18:35,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 10:18:35,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-12-09 10:18:35,981 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 6 states. [2020-12-09 10:18:36,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:18:36,060 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2020-12-09 10:18:36,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 10:18:36,061 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2020-12-09 10:18:36,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:18:36,061 INFO L225 Difference]: With dead ends: 26 [2020-12-09 10:18:36,061 INFO L226 Difference]: Without dead ends: 26 [2020-12-09 10:18:36,062 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2020-12-09 10:18:36,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-12-09 10:18:36,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 17. [2020-12-09 10:18:36,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-12-09 10:18:36,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2020-12-09 10:18:36,064 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 9 [2020-12-09 10:18:36,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:18:36,064 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2020-12-09 10:18:36,064 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 10:18:36,064 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2020-12-09 10:18:36,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 10:18:36,064 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:18:36,065 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:18:36,265 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-12-09 10:18:36,266 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-09 10:18:36,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:18:36,268 INFO L82 PathProgramCache]: Analyzing trace with hash -1237187795, now seen corresponding path program 1 times [2020-12-09 10:18:36,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:18:36,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1619653204] [2020-12-09 10:18:36,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ad0314b-e6f4-4118-b22e-e557ecd8e073/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-12-09 10:18:36,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:18:36,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-09 10:18:36,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:18:36,406 INFO L382 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 6 treesize of output 5 [2020-12-09 10:18:36,407 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 10:18:36,409 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 10:18:36,409 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 10:18:36,409 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-12-09 10:18:36,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:18:36,420 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 10:18:36,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1619653204] [2020-12-09 10:18:36,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:18:36,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 10:18:36,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903861647] [2020-12-09 10:18:36,420 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 10:18:36,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 10:18:36,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 10:18:36,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 10:18:36,421 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 4 states. [2020-12-09 10:18:36,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:18:36,459 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2020-12-09 10:18:36,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 10:18:36,460 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-12-09 10:18:36,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:18:36,460 INFO L225 Difference]: With dead ends: 18 [2020-12-09 10:18:36,460 INFO L226 Difference]: Without dead ends: 18 [2020-12-09 10:18:36,461 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 10:18:36,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-12-09 10:18:36,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 12. [2020-12-09 10:18:36,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-12-09 10:18:36,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2020-12-09 10:18:36,462 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 10 [2020-12-09 10:18:36,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:18:36,462 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2020-12-09 10:18:36,462 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 10:18:36,462 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2020-12-09 10:18:36,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-09 10:18:36,463 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:18:36,463 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:18:36,663 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-12-09 10:18:36,665 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE]=== [2020-12-09 10:18:36,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:18:36,666 INFO L82 PathProgramCache]: Analyzing trace with hash 359142382, now seen corresponding path program 1 times [2020-12-09 10:18:36,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:18:36,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [363762223] [2020-12-09 10:18:36,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ad0314b-e6f4-4118-b22e-e557ecd8e073/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-12-09 10:18:36,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 10:18:36,756 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 10:18:36,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 10:18:36,774 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 10:18:36,796 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-12-09 10:18:36,796 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 10:18:36,997 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-12-09 10:18:37,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 10:18:37 BoogieIcfgContainer [2020-12-09 10:18:37,035 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 10:18:37,036 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 10:18:37,036 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 10:18:37,036 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 10:18:37,037 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:18:34" (3/4) ... [2020-12-09 10:18:37,040 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 10:18:37,040 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 10:18:37,042 INFO L168 Benchmark]: Toolchain (without parser) took 3562.33 ms. Allocated memory was 52.4 MB in the beginning and 100.7 MB in the end (delta: 48.2 MB). Free memory was 32.8 MB in the beginning and 65.3 MB in the end (delta: -32.6 MB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. [2020-12-09 10:18:37,043 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 52.4 MB. Free memory is still 34.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 10:18:37,043 INFO L168 Benchmark]: CACSL2BoogieTranslator took 521.10 ms. Allocated memory was 52.4 MB in the beginning and 83.9 MB in the end (delta: 31.5 MB). Free memory was 32.5 MB in the beginning and 65.4 MB in the end (delta: -32.9 MB). Peak memory consumption was 28.9 MB. Max. memory is 16.1 GB. [2020-12-09 10:18:37,044 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.02 ms. Allocated memory is still 83.9 MB. Free memory was 65.4 MB in the beginning and 63.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 10:18:37,044 INFO L168 Benchmark]: Boogie Preprocessor took 22.74 ms. Allocated memory is still 83.9 MB. Free memory was 63.4 MB in the beginning and 62.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 10:18:37,045 INFO L168 Benchmark]: RCFGBuilder took 213.23 ms. Allocated memory is still 83.9 MB. Free memory was 62.2 MB in the beginning and 46.6 MB in the end (delta: 15.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-12-09 10:18:37,046 INFO L168 Benchmark]: TraceAbstraction took 2749.19 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 46.1 MB in the beginning and 65.3 MB in the end (delta: -19.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 10:18:37,046 INFO L168 Benchmark]: Witness Printer took 5.09 ms. Allocated memory is still 100.7 MB. Free memory is still 65.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 10:18:37,049 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 52.4 MB. Free memory is still 34.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 521.10 ms. Allocated memory was 52.4 MB in the beginning and 83.9 MB in the end (delta: 31.5 MB). Free memory was 32.5 MB in the beginning and 65.4 MB in the end (delta: -32.9 MB). Peak memory consumption was 28.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.02 ms. Allocated memory is still 83.9 MB. Free memory was 65.4 MB in the beginning and 63.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.74 ms. Allocated memory is still 83.9 MB. Free memory was 63.4 MB in the beginning and 62.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 213.23 ms. Allocated memory is still 83.9 MB. Free memory was 62.2 MB in the beginning and 46.6 MB in the end (delta: 15.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2749.19 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 46.1 MB in the beginning and 65.3 MB in the end (delta: -19.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.09 ms. Allocated memory is still 100.7 MB. Free memory is still 65.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 764]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 764. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; VAL [ldv_global_msg_list={3:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); VAL [ldv_global_msg_list={3:0}] [L758] int *p = (int *)ldv_malloc(sizeof(int)); [L759] COND TRUE \read(*p) [L526] COND FALSE !(__VERIFIER_nondet_int()) [L529] return 0; VAL [ldv_global_msg_list={3:0}] [L760] int *q = (int *)ldv_malloc(sizeof(int)); [L761] free(q) VAL [ldv_global_msg_list={3:0}] [L761] free(q) VAL [ldv_global_msg_list={3:0}] [L761] free(q) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.6s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 95 SDtfs, 110 SDslu, 84 SDs, 0 SdLazy, 102 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=4, 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, 57 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 42 ConstructedInterpolants, 6 QuantifiedInterpolants, 1304 SizeOfPredicates, 9 NumberOfNonLiveVariables, 233 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...