./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 a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d17aa8ff-961d-42e7-99d3-adbe3d53c01d/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d17aa8ff-961d-42e7-99d3-adbe3d53c01d/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d17aa8ff-961d-42e7-99d3-adbe3d53c01d/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d17aa8ff-961d-42e7-99d3-adbe3d53c01d/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d17aa8ff-961d-42e7-99d3-adbe3d53c01d/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d17aa8ff-961d-42e7-99d3-adbe3d53c01d/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 c5e00b9cd3876aa8df4263099f6b8339445d38f8 .............................................................................................................................................. 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_d17aa8ff-961d-42e7-99d3-adbe3d53c01d/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d17aa8ff-961d-42e7-99d3-adbe3d53c01d/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d17aa8ff-961d-42e7-99d3-adbe3d53c01d/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d17aa8ff-961d-42e7-99d3-adbe3d53c01d/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d17aa8ff-961d-42e7-99d3-adbe3d53c01d/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d17aa8ff-961d-42e7-99d3-adbe3d53c01d/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 c5e00b9cd3876aa8df4263099f6b8339445d38f8 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 02:58:16,200 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 02:58:16,204 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 02:58:16,273 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 02:58:16,286 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 02:58:16,287 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 02:58:16,289 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 02:58:16,293 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 02:58:16,296 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 02:58:16,297 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 02:58:16,299 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 02:58:16,301 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 02:58:16,302 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 02:58:16,303 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 02:58:16,305 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 02:58:16,307 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 02:58:16,309 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 02:58:16,310 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 02:58:16,313 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 02:58:16,316 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 02:58:16,319 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 02:58:16,321 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 02:58:16,323 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 02:58:16,325 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 02:58:16,329 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 02:58:16,330 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 02:58:16,331 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 02:58:16,332 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 02:58:16,333 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 02:58:16,335 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 02:58:16,335 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 02:58:16,337 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 02:58:16,338 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 02:58:16,339 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 02:58:16,341 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 02:58:16,341 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 02:58:16,343 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 02:58:16,343 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 02:58:16,344 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 02:58:16,345 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 02:58:16,346 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 02:58:16,347 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d17aa8ff-961d-42e7-99d3-adbe3d53c01d/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2020-11-30 02:58:16,386 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 02:58:16,386 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 02:58:16,387 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 02:58:16,387 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 02:58:16,387 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 02:58:16,388 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 02:58:16,388 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 02:58:16,388 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 02:58:16,388 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 02:58:16,388 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 02:58:16,389 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 02:58:16,389 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 02:58:16,389 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 02:58:16,389 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 02:58:16,390 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 02:58:16,390 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 02:58:16,391 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 02:58:16,391 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 02:58:16,391 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 02:58:16,391 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 02:58:16,392 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 02:58:16,392 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 02:58:16,397 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 02:58:16,397 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-30 02:58:16,398 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-30 02:58:16,398 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-30 02:58:16,399 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 02:58:16,400 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 02:58:16,401 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 02:58:16,401 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 02:58:16,401 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 02:58:16,402 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 02:58:16,402 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 02:58:16,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 02:58:16,402 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 02:58:16,403 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 02:58:16,404 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 02:58:16,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 02:58:16,404 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 02:58:16,404 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 02:58:16,405 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_d17aa8ff-961d-42e7-99d3-adbe3d53c01d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d17aa8ff-961d-42e7-99d3-adbe3d53c01d/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5e00b9cd3876aa8df4263099f6b8339445d38f8 [2020-11-30 02:58:16,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 02:58:16,793 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 02:58:16,797 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 02:58:16,798 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 02:58:16,799 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 02:58:16,801 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d17aa8ff-961d-42e7-99d3-adbe3d53c01d/bin/utaipan/../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i [2020-11-30 02:58:16,881 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d17aa8ff-961d-42e7-99d3-adbe3d53c01d/bin/utaipan/data/2ab5df1eb/2c6816f1dac84744aa25e6925fb59ebc/FLAG97197ddaa [2020-11-30 02:58:17,525 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 02:58:17,530 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d17aa8ff-961d-42e7-99d3-adbe3d53c01d/sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i [2020-11-30 02:58:17,549 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d17aa8ff-961d-42e7-99d3-adbe3d53c01d/bin/utaipan/data/2ab5df1eb/2c6816f1dac84744aa25e6925fb59ebc/FLAG97197ddaa [2020-11-30 02:58:17,879 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d17aa8ff-961d-42e7-99d3-adbe3d53c01d/bin/utaipan/data/2ab5df1eb/2c6816f1dac84744aa25e6925fb59ebc [2020-11-30 02:58:17,882 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 02:58:17,883 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 02:58:17,886 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 02:58:17,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 02:58:17,890 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 02:58:17,891 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:58:17" (1/1) ... [2020-11-30 02:58:17,893 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b6cc20b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:58:17, skipping insertion in model container [2020-11-30 02:58:17,893 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:58:17" (1/1) ... [2020-11-30 02:58:17,902 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 02:58:17,960 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 02:58:18,251 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:58:18,266 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2020-11-30 02:58:18,267 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@27bf1a75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:58:18, skipping insertion in model container [2020-11-30 02:58:18,267 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 02:58:18,267 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-30 02:58:18,269 INFO L168 Benchmark]: Toolchain (without parser) took 385.10 ms. Allocated memory is still 90.2 MB. Free memory was 59.9 MB in the beginning and 66.1 MB in the end (delta: -6.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 02:58:18,270 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 90.2 MB. Free memory was 48.8 MB in the beginning and 48.8 MB in the end (delta: 43.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:58:18,271 INFO L168 Benchmark]: CACSL2BoogieTranslator took 381.34 ms. Allocated memory is still 90.2 MB. Free memory was 59.7 MB in the beginning and 66.1 MB in the end (delta: -6.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 02:58:18,273 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 90.2 MB. Free memory was 48.8 MB in the beginning and 48.8 MB in the end (delta: 43.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 381.34 ms. Allocated memory is still 90.2 MB. Free memory was 59.7 MB in the beginning and 66.1 MB in the end (delta: -6.4 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: 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... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-30 02:58:20,726 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 02:58:20,731 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 02:58:20,791 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 02:58:20,792 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 02:58:20,799 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 02:58:20,802 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 02:58:20,807 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 02:58:20,811 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 02:58:20,818 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 02:58:20,820 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 02:58:20,825 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 02:58:20,826 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 02:58:20,833 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 02:58:20,834 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 02:58:20,837 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 02:58:20,838 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 02:58:20,842 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 02:58:20,846 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 02:58:20,855 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 02:58:20,858 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 02:58:20,859 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 02:58:20,868 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 02:58:20,871 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 02:58:20,876 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 02:58:20,880 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 02:58:20,880 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 02:58:20,882 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 02:58:20,883 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 02:58:20,885 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 02:58:20,886 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 02:58:20,887 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 02:58:20,889 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 02:58:20,890 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 02:58:20,891 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 02:58:20,891 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 02:58:20,892 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 02:58:20,893 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 02:58:20,893 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 02:58:20,895 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 02:58:20,896 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 02:58:20,897 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d17aa8ff-961d-42e7-99d3-adbe3d53c01d/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2020-11-30 02:58:20,948 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 02:58:20,949 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 02:58:20,951 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 02:58:20,951 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 02:58:20,952 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 02:58:20,952 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 02:58:20,953 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 02:58:20,953 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 02:58:20,953 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 02:58:20,955 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 02:58:20,956 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 02:58:20,957 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 02:58:20,957 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 02:58:20,957 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 02:58:20,958 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 02:58:20,958 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 02:58:20,958 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 02:58:20,958 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-30 02:58:20,959 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-30 02:58:20,959 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-30 02:58:20,959 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 02:58:20,959 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 02:58:20,960 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 02:58:20,960 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 02:58:20,960 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 02:58:20,960 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 02:58:20,961 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 02:58:20,973 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 02:58:20,973 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 02:58:20,973 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 02:58:20,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 02:58:20,974 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 02:58:20,974 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 02:58:20,975 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-30 02:58:20,975 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 02:58:20,975 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 02:58:20,975 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 02:58:20,976 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_d17aa8ff-961d-42e7-99d3-adbe3d53c01d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d17aa8ff-961d-42e7-99d3-adbe3d53c01d/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5e00b9cd3876aa8df4263099f6b8339445d38f8 [2020-11-30 02:58:21,474 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 02:58:21,507 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 02:58:21,511 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 02:58:21,512 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 02:58:21,513 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 02:58:21,515 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d17aa8ff-961d-42e7-99d3-adbe3d53c01d/bin/utaipan/../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i [2020-11-30 02:58:21,609 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d17aa8ff-961d-42e7-99d3-adbe3d53c01d/bin/utaipan/data/f216bc6cf/c4ce42d18ed242f2a8009620da36c3bd/FLAG4508ebfb6 [2020-11-30 02:58:22,276 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 02:58:22,277 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d17aa8ff-961d-42e7-99d3-adbe3d53c01d/sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i [2020-11-30 02:58:22,300 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d17aa8ff-961d-42e7-99d3-adbe3d53c01d/bin/utaipan/data/f216bc6cf/c4ce42d18ed242f2a8009620da36c3bd/FLAG4508ebfb6 [2020-11-30 02:58:22,513 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d17aa8ff-961d-42e7-99d3-adbe3d53c01d/bin/utaipan/data/f216bc6cf/c4ce42d18ed242f2a8009620da36c3bd [2020-11-30 02:58:22,516 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 02:58:22,519 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 02:58:22,524 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 02:58:22,524 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 02:58:22,529 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 02:58:22,531 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:58:22" (1/1) ... [2020-11-30 02:58:22,540 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ea9b957 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:58:22, skipping insertion in model container [2020-11-30 02:58:22,541 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:58:22" (1/1) ... [2020-11-30 02:58:22,550 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 02:58:22,616 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 02:58:23,117 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:58:23,141 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-30 02:58:23,152 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 02:58:23,206 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:58:23,223 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 02:58:23,285 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:58:23,370 INFO L208 MainTranslator]: Completed translation [2020-11-30 02:58:23,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:58:23 WrapperNode [2020-11-30 02:58:23,371 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 02:58:23,372 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 02:58:23,373 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 02:58:23,373 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 02:58:23,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:58:23" (1/1) ... [2020-11-30 02:58:23,422 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:58:23" (1/1) ... [2020-11-30 02:58:23,464 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 02:58:23,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 02:58:23,466 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 02:58:23,467 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 02:58:23,478 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:58:23" (1/1) ... [2020-11-30 02:58:23,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:58:23" (1/1) ... [2020-11-30 02:58:23,493 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:58:23" (1/1) ... [2020-11-30 02:58:23,501 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:58:23" (1/1) ... [2020-11-30 02:58:23,509 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:58:23" (1/1) ... [2020-11-30 02:58:23,520 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:58:23" (1/1) ... [2020-11-30 02:58:23,522 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:58:23" (1/1) ... [2020-11-30 02:58:23,526 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 02:58:23,527 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 02:58:23,527 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 02:58:23,527 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 02:58:23,528 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:58:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d17aa8ff-961d-42e7-99d3-adbe3d53c01d/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 02:58:23,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-30 02:58:23,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 02:58:23,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-30 02:58:23,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 02:58:23,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 02:58:24,187 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 02:58:24,192 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-30 02:58:24,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:58:24 BoogieIcfgContainer [2020-11-30 02:58:24,194 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 02:58:24,197 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 02:58:24,197 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 02:58:24,200 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 02:58:24,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 02:58:22" (1/3) ... [2020-11-30 02:58:24,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@352da723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:58:24, skipping insertion in model container [2020-11-30 02:58:24,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:58:23" (2/3) ... [2020-11-30 02:58:24,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@352da723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:58:24, skipping insertion in model container [2020-11-30 02:58:24,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:58:24" (3/3) ... [2020-11-30 02:58:24,205 INFO L111 eAbstractionObserver]: Analyzing ICFG array-realloc-3.i [2020-11-30 02:58:24,218 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 02:58:24,224 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-30 02:58:24,254 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-30 02:58:24,292 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 02:58:24,292 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-30 02:58:24,293 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 02:58:24,293 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 02:58:24,293 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 02:58:24,293 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 02:58:24,293 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 02:58:24,294 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 02:58:24,309 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-11-30 02:58:24,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 02:58:24,315 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:58:24,316 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-30 02:58:24,317 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-11-30 02:58:24,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:58:24,324 INFO L82 PathProgramCache]: Analyzing trace with hash 925638, now seen corresponding path program 1 times [2020-11-30 02:58:24,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:58:24,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1021337024] [2020-11-30 02:58:24,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d17aa8ff-961d-42e7-99d3-adbe3d53c01d/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-30 02:58:24,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:58:24,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 02:58:24,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:58:24,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:58:24,526 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:58:24,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:58:24,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1021337024] [2020-11-30 02:58:24,532 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:58:24,533 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-30 02:58:24,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475561742] [2020-11-30 02:58:24,538 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 02:58:24,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:58:24,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 02:58:24,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:58:24,560 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 3 states. [2020-11-30 02:58:24,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:58:24,639 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2020-11-30 02:58:24,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 02:58:24,641 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-11-30 02:58:24,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:58:24,650 INFO L225 Difference]: With dead ends: 18 [2020-11-30 02:58:24,651 INFO L226 Difference]: Without dead ends: 15 [2020-11-30 02:58:24,652 INFO L677 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 [2020-11-30 02:58:24,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-11-30 02:58:24,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-11-30 02:58:24,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-11-30 02:58:24,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2020-11-30 02:58:24,688 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 4 [2020-11-30 02:58:24,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:58:24,689 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2020-11-30 02:58:24,689 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 02:58:24,689 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2020-11-30 02:58:24,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 02:58:24,690 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:58:24,690 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-30 02:58:24,908 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 02:58:24,909 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-11-30 02:58:24,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:58:24,910 INFO L82 PathProgramCache]: Analyzing trace with hash 28695810, now seen corresponding path program 1 times [2020-11-30 02:58:24,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:58:24,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [924066524] [2020-11-30 02:58:24,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d17aa8ff-961d-42e7-99d3-adbe3d53c01d/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-30 02:58:24,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:58:24,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 02:58:24,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:58:25,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:58:25,010 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:58:25,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:58:25,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [924066524] [2020-11-30 02:58:25,013 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:58:25,013 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-30 02:58:25,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54403403] [2020-11-30 02:58:25,015 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 02:58:25,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:58:25,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 02:58:25,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:58:25,016 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 3 states. [2020-11-30 02:58:25,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:58:25,029 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2020-11-30 02:58:25,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 02:58:25,030 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-30 02:58:25,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:58:25,031 INFO L225 Difference]: With dead ends: 15 [2020-11-30 02:58:25,031 INFO L226 Difference]: Without dead ends: 15 [2020-11-30 02:58:25,032 INFO L677 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 [2020-11-30 02:58:25,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-11-30 02:58:25,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-11-30 02:58:25,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-11-30 02:58:25,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2020-11-30 02:58:25,036 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 5 [2020-11-30 02:58:25,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:58:25,036 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2020-11-30 02:58:25,036 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 02:58:25,036 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2020-11-30 02:58:25,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 02:58:25,037 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:58:25,037 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:58:25,238 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 02:58:25,239 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-11-30 02:58:25,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:58:25,239 INFO L82 PathProgramCache]: Analyzing trace with hash 179641051, now seen corresponding path program 1 times [2020-11-30 02:58:25,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:58:25,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [504500538] [2020-11-30 02:58:25,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d17aa8ff-961d-42e7-99d3-adbe3d53c01d/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 [2020-11-30 02:58:25,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:58:25,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 02:58:25,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:58:25,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:58:25,393 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:58:25,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:58:25,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [504500538] [2020-11-30 02:58:25,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:58:25,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-30 02:58:25,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307179019] [2020-11-30 02:58:25,437 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 02:58:25,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:58:25,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 02:58:25,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-30 02:58:25,439 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 6 states. [2020-11-30 02:58:25,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:58:25,562 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2020-11-30 02:58:25,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 02:58:25,563 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2020-11-30 02:58:25,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:58:25,564 INFO L225 Difference]: With dead ends: 16 [2020-11-30 02:58:25,564 INFO L226 Difference]: Without dead ends: 16 [2020-11-30 02:58:25,564 INFO L677 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 [2020-11-30 02:58:25,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-11-30 02:58:25,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-11-30 02:58:25,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-30 02:58:25,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2020-11-30 02:58:25,568 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 8 [2020-11-30 02:58:25,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:58:25,569 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2020-11-30 02:58:25,569 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 02:58:25,569 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-11-30 02:58:25,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 02:58:25,570 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:58:25,570 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:58:25,772 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 02:58:25,773 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-11-30 02:58:25,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:58:25,773 INFO L82 PathProgramCache]: Analyzing trace with hash 179688781, now seen corresponding path program 1 times [2020-11-30 02:58:25,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:58:25,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1009464940] [2020-11-30 02:58:25,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d17aa8ff-961d-42e7-99d3-adbe3d53c01d/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 [2020-11-30 02:58:25,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:58:25,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 02:58:25,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:58:25,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:58:25,935 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:58:25,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:58:25,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1009464940] [2020-11-30 02:58:25,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:58:25,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-30 02:58:25,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747202603] [2020-11-30 02:58:25,949 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 02:58:25,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:58:25,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 02:58:25,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 02:58:25,962 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 5 states. [2020-11-30 02:58:26,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:58:26,104 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2020-11-30 02:58:26,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 02:58:26,105 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2020-11-30 02:58:26,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:58:26,106 INFO L225 Difference]: With dead ends: 27 [2020-11-30 02:58:26,106 INFO L226 Difference]: Without dead ends: 27 [2020-11-30 02:58:26,106 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-30 02:58:26,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-11-30 02:58:26,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 17. [2020-11-30 02:58:26,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-30 02:58:26,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2020-11-30 02:58:26,111 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 8 [2020-11-30 02:58:26,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:58:26,111 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2020-11-30 02:58:26,111 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 02:58:26,112 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2020-11-30 02:58:26,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 02:58:26,112 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:58:26,112 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:58:26,313 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-30 02:58:26,313 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-11-30 02:58:26,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:58:26,314 INFO L82 PathProgramCache]: Analyzing trace with hash 179690703, now seen corresponding path program 1 times [2020-11-30 02:58:26,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:58:26,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [102842936] [2020-11-30 02:58:26,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d17aa8ff-961d-42e7-99d3-adbe3d53c01d/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 [2020-11-30 02:58:26,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:58:26,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 02:58:26,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:58:26,482 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 02:58:26,483 INFO L384 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 25 [2020-11-30 02:58:26,484 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 02:58:26,515 INFO L625 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2020-11-30 02:58:26,518 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-30 02:58:26,519 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:5 [2020-11-30 02:58:26,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:58:26,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:58:26,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:58:26,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [102842936] [2020-11-30 02:58:26,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:58:26,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-30 02:58:26,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285501961] [2020-11-30 02:58:26,545 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 02:58:26,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:58:26,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 02:58:26,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 02:58:26,547 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 4 states. [2020-11-30 02:58:26,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:58:26,634 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2020-11-30 02:58:26,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 02:58:26,635 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-11-30 02:58:26,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:58:26,636 INFO L225 Difference]: With dead ends: 16 [2020-11-30 02:58:26,636 INFO L226 Difference]: Without dead ends: 16 [2020-11-30 02:58:26,637 INFO L677 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 [2020-11-30 02:58:26,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-11-30 02:58:26,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-11-30 02:58:26,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-30 02:58:26,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2020-11-30 02:58:26,640 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 8 [2020-11-30 02:58:26,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:58:26,640 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2020-11-30 02:58:26,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 02:58:26,641 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-11-30 02:58:26,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 02:58:26,641 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:58:26,641 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:58:26,854 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-30 02:58:26,855 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-11-30 02:58:26,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:58:26,855 INFO L82 PathProgramCache]: Analyzing trace with hash 179690704, now seen corresponding path program 1 times [2020-11-30 02:58:26,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:58:26,856 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1849917296] [2020-11-30 02:58:26,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d17aa8ff-961d-42e7-99d3-adbe3d53c01d/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 [2020-11-30 02:58:26,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:58:26,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 02:58:26,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:58:26,979 INFO L384 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 [2020-11-30 02:58:26,980 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 02:58:26,991 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 02:58:26,991 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-30 02:58:26,992 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:16 [2020-11-30 02:58:27,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:58:27,043 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:58:27,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:58:27,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1849917296] [2020-11-30 02:58:27,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:58:27,525 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-11-30 02:58:27,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473922162] [2020-11-30 02:58:27,525 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 02:58:27,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:58:27,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 02:58:27,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-11-30 02:58:27,527 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 10 states. [2020-11-30 02:58:28,249 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-11-30 02:58:28,712 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-11-30 02:58:28,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:58:28,901 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2020-11-30 02:58:28,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-30 02:58:28,903 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 8 [2020-11-30 02:58:28,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:58:28,904 INFO L225 Difference]: With dead ends: 42 [2020-11-30 02:58:28,904 INFO L226 Difference]: Without dead ends: 42 [2020-11-30 02:58:28,905 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-11-30 02:58:28,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-11-30 02:58:28,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 28. [2020-11-30 02:58:28,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-11-30 02:58:28,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2020-11-30 02:58:28,911 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 8 [2020-11-30 02:58:28,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:58:28,911 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2020-11-30 02:58:28,911 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 02:58:28,911 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2020-11-30 02:58:28,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 02:58:28,912 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:58:28,912 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:58:29,115 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-30 02:58:29,116 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-11-30 02:58:29,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:58:29,117 INFO L82 PathProgramCache]: Analyzing trace with hash 702944005, now seen corresponding path program 1 times [2020-11-30 02:58:29,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:58:29,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1422861064] [2020-11-30 02:58:29,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d17aa8ff-961d-42e7-99d3-adbe3d53c01d/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 [2020-11-30 02:58:29,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 02:58:29,206 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 02:58:29,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 02:58:29,255 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 02:58:29,303 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-30 02:58:29,303 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 02:58:29,516 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-11-30 02:58:29,535 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-11-30 02:58:29,537 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-11-30 02:58:29,538 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-11-30 02:58:29,538 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-11-30 02:58:29,538 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-11-30 02:58:29,539 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-11-30 02:58:29,539 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-11-30 02:58:29,540 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-11-30 02:58:29,540 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-11-30 02:58:29,541 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-11-30 02:58:29,541 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-11-30 02:58:29,541 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-11-30 02:58:29,542 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-11-30 02:58:29,542 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-11-30 02:58:29,543 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-11-30 02:58:29,543 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-11-30 02:58:29,543 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-11-30 02:58:29,544 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-11-30 02:58:29,544 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-11-30 02:58:29,545 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-11-30 02:58:29,545 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-11-30 02:58:29,545 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-11-30 02:58:29,546 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-11-30 02:58:29,546 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-11-30 02:58:29,547 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-11-30 02:58:29,547 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-11-30 02:58:29,548 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-11-30 02:58:29,548 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-11-30 02:58:29,548 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-11-30 02:58:29,549 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-11-30 02:58:29,549 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-11-30 02:58:29,550 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-11-30 02:58:29,550 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-11-30 02:58:29,550 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-11-30 02:58:29,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 02:58:29 BoogieIcfgContainer [2020-11-30 02:58:29,574 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 02:58:29,574 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 02:58:29,574 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 02:58:29,575 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 02:58:29,575 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:58:24" (3/4) ... [2020-11-30 02:58:29,579 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 02:58:29,580 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 02:58:29,582 INFO L168 Benchmark]: Toolchain (without parser) took 7061.71 ms. Allocated memory was 58.7 MB in the beginning and 94.4 MB in the end (delta: 35.7 MB). Free memory was 35.7 MB in the beginning and 57.3 MB in the end (delta: -21.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. [2020-11-30 02:58:29,582 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 58.7 MB. Free memory was 40.2 MB in the beginning and 40.2 MB in the end (delta: 42.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:58:29,583 INFO L168 Benchmark]: CACSL2BoogieTranslator took 847.86 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 35.5 MB in the beginning and 58.6 MB in the end (delta: -23.1 MB). Peak memory consumption was 15.6 MB. Max. memory is 16.1 GB. [2020-11-30 02:58:29,584 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.72 ms. Allocated memory is still 77.6 MB. Free memory was 58.6 MB in the beginning and 56.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:58:29,585 INFO L168 Benchmark]: Boogie Preprocessor took 60.38 ms. Allocated memory is still 77.6 MB. Free memory was 56.7 MB in the beginning and 55.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:58:29,586 INFO L168 Benchmark]: RCFGBuilder took 667.62 ms. Allocated memory is still 77.6 MB. Free memory was 55.2 MB in the beginning and 38.4 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-30 02:58:29,587 INFO L168 Benchmark]: TraceAbstraction took 5377.29 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 38.1 MB in the beginning and 57.3 MB in the end (delta: -19.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:58:29,587 INFO L168 Benchmark]: Witness Printer took 5.46 ms. Allocated memory is still 94.4 MB. Free memory is still 57.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:58:29,591 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 58.7 MB. Free memory was 40.2 MB in the beginning and 40.2 MB in the end (delta: 42.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 847.86 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 35.5 MB in the beginning and 58.6 MB in the end (delta: -23.1 MB). Peak memory consumption was 15.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 91.72 ms. Allocated memory is still 77.6 MB. Free memory was 58.6 MB in the beginning and 56.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 60.38 ms. Allocated memory is still 77.6 MB. Free memory was 56.7 MB in the beginning and 55.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 667.62 ms. Allocated memory is still 77.6 MB. Free memory was 55.2 MB in the beginning and 38.4 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5377.29 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 38.1 MB in the beginning and 57.3 MB in the end (delta: -19.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.46 ms. Allocated memory is still 94.4 MB. Free memory is still 57.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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)); VAL [i=1, ind=0, newsize=0, num=1] [L531] COND FALSE !(a == ((void *)0)) [L534] newsize = 0 [L515] int *a = (int *)arg; VAL [i=1, ind=0, newsize=0, num=1] [L516] COND TRUE newsize < num [L517] newsize = newsize + 1 [L518] int *b = ((void *)0); [L519] b = realloc(a, sizeof(int) * newsize) [L520] b[newsize - 1] = i VAL [i=1, ind=0, newsize=1, num=1] [L521] a = b VAL [i=1, ind=0, newsize=1, num=1] [L516] COND FALSE !(newsize < num) VAL [i=1, ind=0, newsize=1, num=1] [L523] return 0; VAL [i=1, ind=0, newsize=1, num=1] [L536] return 0; VAL [i=1, ind=0, newsize=1, num=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.2s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 80 SDtfs, 191 SDslu, 81 SDs, 0 SdLazy, 132 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=6, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 1631 SizeOfPredicates, 15 NumberOfNonLiveVariables, 256 ConjunctsInSsa, 27 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 Received shutdown request...