./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_01a5c2f3-27dc-475e-bce2-f4c390648c6a/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_01a5c2f3-27dc-475e-bce2-f4c390648c6a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_01a5c2f3-27dc-475e-bce2-f4c390648c6a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_01a5c2f3-27dc-475e-bce2-f4c390648c6a/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i -s /tmp/vcloud-vcloud-master/worker/run_dir_01a5c2f3-27dc-475e-bce2-f4c390648c6a/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_01a5c2f3-27dc-475e-bce2-f4c390648c6a/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_01a5c2f3-27dc-475e-bce2-f4c390648c6a/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_01a5c2f3-27dc-475e-bce2-f4c390648c6a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_01a5c2f3-27dc-475e-bce2-f4c390648c6a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_01a5c2f3-27dc-475e-bce2-f4c390648c6a/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i -s /tmp/vcloud-vcloud-master/worker/run_dir_01a5c2f3-27dc-475e-bce2-f4c390648c6a/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_01a5c2f3-27dc-475e-bce2-f4c390648c6a/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 [2020-11-22 13:08:21,302 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:08:21,304 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:08:21,355 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:08:21,356 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:08:21,357 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:08:21,359 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:08:21,361 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:08:21,364 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:08:21,365 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:08:21,366 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:08:21,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:08:21,368 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:08:21,369 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:08:21,370 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:08:21,372 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:08:21,373 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:08:21,374 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:08:21,376 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:08:21,379 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:08:21,385 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:08:21,388 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:08:21,394 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:08:21,395 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:08:21,400 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:08:21,405 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:08:21,406 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:08:21,407 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:08:21,408 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:08:21,410 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:08:21,410 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:08:21,411 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:08:21,412 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:08:21,414 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:08:21,415 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:08:21,416 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:08:21,417 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:08:21,417 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:08:21,417 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:08:21,419 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:08:21,420 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:08:21,422 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_01a5c2f3-27dc-475e-bce2-f4c390648c6a/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2020-11-22 13:08:21,463 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:08:21,465 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:08:21,466 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:08:21,466 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:08:21,466 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:08:21,467 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:08:21,467 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:08:21,467 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:08:21,467 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:08:21,468 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:08:21,469 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:08:21,469 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:08:21,469 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:08:21,470 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:08:21,470 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:08:21,471 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-22 13:08:21,471 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-22 13:08:21,471 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:08:21,471 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:08:21,472 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-22 13:08:21,472 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:08:21,472 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:08:21,472 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:08:21,472 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-22 13:08:21,473 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-22 13:08:21,473 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-22 13:08:21,475 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:08:21,475 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:08:21,475 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:08:21,476 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:08:21,476 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:08:21,476 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:08:21,477 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:08:21,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:08:21,477 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:08:21,477 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:08:21,478 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:08:21,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:08:21,478 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:08:21,478 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:08:21,481 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_01a5c2f3-27dc-475e-bce2-f4c390648c6a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_01a5c2f3-27dc-475e-bce2-f4c390648c6a/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5e00b9cd3876aa8df4263099f6b8339445d38f8 [2020-11-22 13:08:21,731 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:08:21,759 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:08:21,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:08:21,762 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:08:21,780 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:08:21,780 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_01a5c2f3-27dc-475e-bce2-f4c390648c6a/bin/utaipan/../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i [2020-11-22 13:08:21,842 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_01a5c2f3-27dc-475e-bce2-f4c390648c6a/bin/utaipan/data/b621de29b/82073f1e5c244281b5d9a0b220e3d9fe/FLAG7dc3e6811 [2020-11-22 13:08:22,362 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:08:22,362 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_01a5c2f3-27dc-475e-bce2-f4c390648c6a/sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i [2020-11-22 13:08:22,388 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_01a5c2f3-27dc-475e-bce2-f4c390648c6a/bin/utaipan/data/b621de29b/82073f1e5c244281b5d9a0b220e3d9fe/FLAG7dc3e6811 [2020-11-22 13:08:22,815 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_01a5c2f3-27dc-475e-bce2-f4c390648c6a/bin/utaipan/data/b621de29b/82073f1e5c244281b5d9a0b220e3d9fe [2020-11-22 13:08:22,817 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:08:22,819 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:08:22,821 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:08:22,821 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:08:22,824 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:08:22,825 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:08:22" (1/1) ... [2020-11-22 13:08:22,827 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@239313de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:22, skipping insertion in model container [2020-11-22 13:08:22,827 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:08:22" (1/1) ... [2020-11-22 13:08:22,834 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:08:22,868 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:08:23,164 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:08:23,181 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2020-11-22 13:08:23,182 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6eec3a08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:23, skipping insertion in model container [2020-11-22 13:08:23,182 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:08:23,183 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-22 13:08:23,186 INFO L168 Benchmark]: Toolchain (without parser) took 365.12 ms. Allocated memory is still 94.4 MB. Free memory was 62.3 MB in the beginning and 70.3 MB in the end (delta: -8.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:23,187 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 94.4 MB. Free memory was 51.5 MB in the beginning and 51.4 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:08:23,189 INFO L168 Benchmark]: CACSL2BoogieTranslator took 362.61 ms. Allocated memory is still 94.4 MB. Free memory was 62.1 MB in the beginning and 70.3 MB in the end (delta: -8.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:23,192 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 94.4 MB. Free memory was 51.5 MB in the beginning and 51.4 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 362.61 ms. Allocated memory is still 94.4 MB. Free memory was 62.1 MB in the beginning and 70.3 MB in the end (delta: -8.2 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 [2020-11-22 13:08:25,400 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:08:25,403 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:08:25,441 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:08:25,442 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:08:25,443 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:08:25,445 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:08:25,447 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:08:25,450 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:08:25,451 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:08:25,452 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:08:25,463 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:08:25,463 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:08:25,465 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:08:25,466 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:08:25,467 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:08:25,468 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:08:25,469 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:08:25,472 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:08:25,474 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:08:25,476 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:08:25,477 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:08:25,479 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:08:25,479 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:08:25,485 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:08:25,492 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:08:25,492 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:08:25,493 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:08:25,494 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:08:25,496 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:08:25,496 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:08:25,499 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:08:25,500 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:08:25,501 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:08:25,503 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:08:25,503 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:08:25,504 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:08:25,504 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:08:25,504 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:08:25,505 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:08:25,507 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:08:25,508 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_01a5c2f3-27dc-475e-bce2-f4c390648c6a/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2020-11-22 13:08:25,548 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:08:25,549 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:08:25,551 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:08:25,551 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:08:25,551 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:08:25,551 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:08:25,552 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:08:25,552 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:08:25,552 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:08:25,553 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-22 13:08:25,554 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-22 13:08:25,555 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:08:25,555 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:08:25,555 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-22 13:08:25,555 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:08:25,556 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:08:25,556 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:08:25,556 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-22 13:08:25,556 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-22 13:08:25,556 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-22 13:08:25,557 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:08:25,557 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:08:25,557 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 13:08:25,557 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 13:08:25,558 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:08:25,558 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:08:25,558 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:08:25,558 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 13:08:25,558 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:08:25,559 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:08:25,559 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:08:25,559 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:08:25,559 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:08:25,560 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 13:08:25,560 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 13:08:25,560 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:08:25,560 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:08:25,561 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_01a5c2f3-27dc-475e-bce2-f4c390648c6a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_01a5c2f3-27dc-475e-bce2-f4c390648c6a/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5e00b9cd3876aa8df4263099f6b8339445d38f8 [2020-11-22 13:08:25,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:08:26,007 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:08:26,010 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:08:26,011 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:08:26,014 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:08:26,015 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_01a5c2f3-27dc-475e-bce2-f4c390648c6a/bin/utaipan/../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i [2020-11-22 13:08:26,083 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_01a5c2f3-27dc-475e-bce2-f4c390648c6a/bin/utaipan/data/3245c0504/d90ff42dd26b410badd16bb7b0b884ad/FLAG8f0e48ff9 [2020-11-22 13:08:26,674 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:08:26,674 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_01a5c2f3-27dc-475e-bce2-f4c390648c6a/sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i [2020-11-22 13:08:26,694 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_01a5c2f3-27dc-475e-bce2-f4c390648c6a/bin/utaipan/data/3245c0504/d90ff42dd26b410badd16bb7b0b884ad/FLAG8f0e48ff9 [2020-11-22 13:08:26,951 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_01a5c2f3-27dc-475e-bce2-f4c390648c6a/bin/utaipan/data/3245c0504/d90ff42dd26b410badd16bb7b0b884ad [2020-11-22 13:08:26,953 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:08:26,955 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:08:26,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:08:26,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:08:26,962 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:08:26,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:08:26" (1/1) ... [2020-11-22 13:08:26,969 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2da59e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:26, skipping insertion in model container [2020-11-22 13:08:26,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:08:26" (1/1) ... [2020-11-22 13:08:26,976 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:08:27,035 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:08:27,375 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:08:27,391 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-22 13:08:27,400 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:08:27,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:08:27,447 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:08:27,486 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:08:27,539 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:08:27,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:27 WrapperNode [2020-11-22 13:08:27,539 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:08:27,540 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:08:27,541 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:08:27,541 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:08:27,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:27" (1/1) ... [2020-11-22 13:08:27,568 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:27" (1/1) ... [2020-11-22 13:08:27,598 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:08:27,598 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:08:27,599 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:08:27,599 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:08:27,607 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:27" (1/1) ... [2020-11-22 13:08:27,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:27" (1/1) ... [2020-11-22 13:08:27,610 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:27" (1/1) ... [2020-11-22 13:08:27,611 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:27" (1/1) ... [2020-11-22 13:08:27,622 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:27" (1/1) ... [2020-11-22 13:08:27,629 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:27" (1/1) ... [2020-11-22 13:08:27,634 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:27" (1/1) ... [2020-11-22 13:08:27,644 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:08:27,645 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:08:27,645 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:08:27,645 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:08:27,646 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_01a5c2f3-27dc-475e-bce2-f4c390648c6a/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:08:27,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-22 13:08:27,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-22 13:08:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-22 13:08:27,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:08:27,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:08:28,244 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:08:28,244 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-22 13:08:28,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:08:28 BoogieIcfgContainer [2020-11-22 13:08:28,246 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:08:28,251 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:08:28,251 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:08:28,254 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:08:28,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:08:26" (1/3) ... [2020-11-22 13:08:28,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@386c97a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:08:28, skipping insertion in model container [2020-11-22 13:08:28,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:27" (2/3) ... [2020-11-22 13:08:28,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@386c97a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:08:28, skipping insertion in model container [2020-11-22 13:08:28,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:08:28" (3/3) ... [2020-11-22 13:08:28,258 INFO L111 eAbstractionObserver]: Analyzing ICFG array-realloc-3.i [2020-11-22 13:08:28,269 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:08:28,273 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-22 13:08:28,290 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-22 13:08:28,320 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:08:28,320 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-22 13:08:28,320 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:08:28,321 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:08:28,321 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:08:28,321 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:08:28,321 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:08:28,321 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:08:28,334 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-11-22 13:08:28,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-22 13:08:28,341 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:08:28,341 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-22 13:08:28,342 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-11-22 13:08:28,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:08:28,347 INFO L82 PathProgramCache]: Analyzing trace with hash 925638, now seen corresponding path program 1 times [2020-11-22 13:08:28,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:08:28,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1151991058] [2020-11-22 13:08:28,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_01a5c2f3-27dc-475e-bce2-f4c390648c6a/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-22 13:08:28,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:08:28,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:08:28,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:08:28,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:08:28,523 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:08:28,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:08:28,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1151991058] [2020-11-22 13:08:28,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:08:28,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 13:08:28,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904769487] [2020-11-22 13:08:28,533 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:08:28,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:08:28,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:08:28,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:08:28,550 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 3 states. [2020-11-22 13:08:28,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:08:28,625 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2020-11-22 13:08:28,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:08:28,628 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-11-22 13:08:28,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:08:28,635 INFO L225 Difference]: With dead ends: 18 [2020-11-22 13:08:28,635 INFO L226 Difference]: Without dead ends: 15 [2020-11-22 13:08:28,636 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 [2020-11-22 13:08:28,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-11-22 13:08:28,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-11-22 13:08:28,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-11-22 13:08:28,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2020-11-22 13:08:28,666 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 4 [2020-11-22 13:08:28,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:08:28,667 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2020-11-22 13:08:28,667 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:08:28,667 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2020-11-22 13:08:28,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-22 13:08:28,667 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:08:28,668 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-22 13:08:28,887 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 13:08:28,887 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-11-22 13:08:28,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:08:28,889 INFO L82 PathProgramCache]: Analyzing trace with hash 28695810, now seen corresponding path program 1 times [2020-11-22 13:08:28,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:08:28,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [883829232] [2020-11-22 13:08:28,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_01a5c2f3-27dc-475e-bce2-f4c390648c6a/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-22 13:08:28,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:08:28,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-22 13:08:28,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:08:28,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:08:28,993 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:08:28,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:08:28,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [883829232] [2020-11-22 13:08:28,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:08:28,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-22 13:08:28,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785368359] [2020-11-22 13:08:28,996 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:08:28,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:08:28,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:08:28,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:08:28,998 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 3 states. [2020-11-22 13:08:29,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:08:29,017 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2020-11-22 13:08:29,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:08:29,018 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-22 13:08:29,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:08:29,019 INFO L225 Difference]: With dead ends: 15 [2020-11-22 13:08:29,019 INFO L226 Difference]: Without dead ends: 15 [2020-11-22 13:08:29,020 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 [2020-11-22 13:08:29,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-11-22 13:08:29,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-11-22 13:08:29,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-11-22 13:08:29,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2020-11-22 13:08:29,022 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 5 [2020-11-22 13:08:29,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:08:29,023 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2020-11-22 13:08:29,023 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:08:29,023 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2020-11-22 13:08:29,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-22 13:08:29,023 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:08:29,024 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:08:29,233 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 13:08:29,234 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-11-22 13:08:29,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:08:29,234 INFO L82 PathProgramCache]: Analyzing trace with hash 179641051, now seen corresponding path program 1 times [2020-11-22 13:08:29,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:08:29,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1823477047] [2020-11-22 13:08:29,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_01a5c2f3-27dc-475e-bce2-f4c390648c6a/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 [2020-11-22 13:08:29,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:08:29,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-22 13:08:29,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:08:29,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:08:29,351 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:08:29,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:08:29,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1823477047] [2020-11-22 13:08:29,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:08:29,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-22 13:08:29,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577809454] [2020-11-22 13:08:29,380 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-22 13:08:29,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:08:29,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-22 13:08:29,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-22 13:08:29,381 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 6 states. [2020-11-22 13:08:29,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:08:29,435 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2020-11-22 13:08:29,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:08:29,436 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2020-11-22 13:08:29,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:08:29,437 INFO L225 Difference]: With dead ends: 16 [2020-11-22 13:08:29,437 INFO L226 Difference]: Without dead ends: 16 [2020-11-22 13:08:29,437 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 [2020-11-22 13:08:29,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-11-22 13:08:29,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-11-22 13:08:29,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-22 13:08:29,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2020-11-22 13:08:29,441 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 8 [2020-11-22 13:08:29,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:08:29,441 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2020-11-22 13:08:29,441 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-22 13:08:29,441 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-11-22 13:08:29,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-22 13:08:29,442 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:08:29,442 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:08:29,642 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 13:08:29,643 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-11-22 13:08:29,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:08:29,643 INFO L82 PathProgramCache]: Analyzing trace with hash 179688781, now seen corresponding path program 1 times [2020-11-22 13:08:29,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:08:29,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [488119807] [2020-11-22 13:08:29,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_01a5c2f3-27dc-475e-bce2-f4c390648c6a/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 [2020-11-22 13:08:29,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:08:29,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-22 13:08:29,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:08:29,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:08:29,779 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:08:29,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:08:29,784 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [488119807] [2020-11-22 13:08:29,784 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:08:29,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-22 13:08:29,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411333743] [2020-11-22 13:08:29,785 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:08:29,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:08:29,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:08:29,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:08:29,786 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 5 states. [2020-11-22 13:08:29,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:08:29,881 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2020-11-22 13:08:29,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 13:08:29,882 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2020-11-22 13:08:29,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:08:29,883 INFO L225 Difference]: With dead ends: 27 [2020-11-22 13:08:29,883 INFO L226 Difference]: Without dead ends: 27 [2020-11-22 13:08:29,883 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-22 13:08:29,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-11-22 13:08:29,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 17. [2020-11-22 13:08:29,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-22 13:08:29,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2020-11-22 13:08:29,887 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 8 [2020-11-22 13:08:29,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:08:29,887 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2020-11-22 13:08:29,887 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:08:29,887 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2020-11-22 13:08:29,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-22 13:08:29,888 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:08:29,888 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:08:30,088 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-22 13:08:30,089 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-11-22 13:08:30,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:08:30,089 INFO L82 PathProgramCache]: Analyzing trace with hash 179690703, now seen corresponding path program 1 times [2020-11-22 13:08:30,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:08:30,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [999682555] [2020-11-22 13:08:30,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_01a5c2f3-27dc-475e-bce2-f4c390648c6a/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 [2020-11-22 13:08:30,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:08:30,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-22 13:08:30,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:08:30,210 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-22 13:08:30,211 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 [2020-11-22 13:08:30,211 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-22 13:08:30,237 INFO L625 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2020-11-22 13:08:30,239 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-22 13:08:30,239 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:5 [2020-11-22 13:08:30,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:08:30,251 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:08:30,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:08:30,253 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [999682555] [2020-11-22 13:08:30,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:08:30,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-22 13:08:30,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639419080] [2020-11-22 13:08:30,254 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:08:30,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:08:30,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:08:30,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:08:30,255 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 4 states. [2020-11-22 13:08:30,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:08:30,341 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2020-11-22 13:08:30,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:08:30,342 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-11-22 13:08:30,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:08:30,343 INFO L225 Difference]: With dead ends: 16 [2020-11-22 13:08:30,343 INFO L226 Difference]: Without dead ends: 16 [2020-11-22 13:08:30,343 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 [2020-11-22 13:08:30,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-11-22 13:08:30,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-11-22 13:08:30,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-22 13:08:30,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2020-11-22 13:08:30,346 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 8 [2020-11-22 13:08:30,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:08:30,346 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2020-11-22 13:08:30,346 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:08:30,346 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-11-22 13:08:30,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-22 13:08:30,347 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:08:30,347 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:08:30,557 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-22 13:08:30,557 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-11-22 13:08:30,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:08:30,558 INFO L82 PathProgramCache]: Analyzing trace with hash 179690704, now seen corresponding path program 1 times [2020-11-22 13:08:30,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:08:30,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1469270130] [2020-11-22 13:08:30,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_01a5c2f3-27dc-475e-bce2-f4c390648c6a/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 [2020-11-22 13:08:30,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:08:30,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-22 13:08:30,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:08:30,666 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 [2020-11-22 13:08:30,667 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-22 13:08:30,677 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-22 13:08:30,677 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-22 13:08:30,678 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:16 [2020-11-22 13:08:30,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:08:30,716 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:08:31,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:08:31,128 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1469270130] [2020-11-22 13:08:31,128 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:08:31,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-11-22 13:08:31,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240555496] [2020-11-22 13:08:31,129 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-22 13:08:31,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:08:31,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-22 13:08:31,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-11-22 13:08:31,130 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 10 states. [2020-11-22 13:08:31,747 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-11-22 13:08:32,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:08:32,267 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2020-11-22 13:08:32,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-22 13:08:32,268 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 8 [2020-11-22 13:08:32,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:08:32,269 INFO L225 Difference]: With dead ends: 42 [2020-11-22 13:08:32,269 INFO L226 Difference]: Without dead ends: 42 [2020-11-22 13:08:32,270 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-11-22 13:08:32,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-11-22 13:08:32,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 28. [2020-11-22 13:08:32,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-11-22 13:08:32,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2020-11-22 13:08:32,274 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 8 [2020-11-22 13:08:32,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:08:32,274 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2020-11-22 13:08:32,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-22 13:08:32,274 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2020-11-22 13:08:32,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-22 13:08:32,275 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:08:32,275 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:08:32,476 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-22 13:08:32,477 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK]=== [2020-11-22 13:08:32,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:08:32,477 INFO L82 PathProgramCache]: Analyzing trace with hash 702944005, now seen corresponding path program 1 times [2020-11-22 13:08:32,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:08:32,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [633094433] [2020-11-22 13:08:32,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_01a5c2f3-27dc-475e-bce2-f4c390648c6a/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 [2020-11-22 13:08:32,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:08:32,578 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:08:32,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:08:32,618 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:08:32,656 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-22 13:08:32,656 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:08:32,857 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-11-22 13:08:32,868 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-11-22 13:08:32,869 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-11-22 13:08:32,870 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-11-22 13:08:32,870 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-11-22 13:08:32,870 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-11-22 13:08:32,871 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-11-22 13:08:32,871 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-11-22 13:08:32,871 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-11-22 13:08:32,872 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-11-22 13:08:32,872 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-11-22 13:08:32,872 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-11-22 13:08:32,873 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-11-22 13:08:32,873 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-11-22 13:08:32,873 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-11-22 13:08:32,874 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-11-22 13:08:32,874 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-11-22 13:08:32,875 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-11-22 13:08:32,875 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-11-22 13:08:32,875 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-11-22 13:08:32,876 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-11-22 13:08:32,876 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-11-22 13:08:32,876 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-11-22 13:08:32,877 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-11-22 13:08:32,877 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-11-22 13:08:32,877 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-11-22 13:08:32,878 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-11-22 13:08:32,878 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-11-22 13:08:32,879 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-11-22 13:08:32,879 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-11-22 13:08:32,879 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-11-22 13:08:32,880 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-11-22 13:08:32,880 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_ptr : $Pointer$ not handled [2020-11-22 13:08:32,880 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-11-22 13:08:32,881 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_realloc_#res : $Pointer$ not handled [2020-11-22 13:08:32,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:08:32 BoogieIcfgContainer [2020-11-22 13:08:32,900 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:08:32,900 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:08:32,900 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:08:32,901 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:08:32,901 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:08:28" (3/4) ... [2020-11-22 13:08:32,904 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-22 13:08:32,905 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:08:32,906 INFO L168 Benchmark]: Toolchain (without parser) took 5950.71 ms. Allocated memory was 54.5 MB in the beginning and 88.1 MB in the end (delta: 33.6 MB). Free memory was 31.8 MB in the beginning and 32.2 MB in the end (delta: -428.9 kB). Peak memory consumption was 33.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:32,907 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 54.5 MB. Free memory was 36.3 MB in the beginning and 36.2 MB in the end (delta: 73.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:08:32,907 INFO L168 Benchmark]: CACSL2BoogieTranslator took 581.94 ms. Allocated memory is still 54.5 MB. Free memory was 31.6 MB in the beginning and 22.4 MB in the end (delta: 9.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:32,908 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.40 ms. Allocated memory was 54.5 MB in the beginning and 73.4 MB in the end (delta: 18.9 MB). Free memory was 22.3 MB in the beginning and 55.4 MB in the end (delta: -33.2 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:32,909 INFO L168 Benchmark]: Boogie Preprocessor took 45.37 ms. Allocated memory is still 73.4 MB. Free memory was 55.4 MB in the beginning and 54.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:08:32,909 INFO L168 Benchmark]: RCFGBuilder took 601.58 ms. Allocated memory is still 73.4 MB. Free memory was 53.9 MB in the beginning and 37.2 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:32,910 INFO L168 Benchmark]: TraceAbstraction took 4649.21 ms. Allocated memory was 73.4 MB in the beginning and 88.1 MB in the end (delta: 14.7 MB). Free memory was 36.8 MB in the beginning and 32.2 MB in the end (delta: 4.6 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:32,911 INFO L168 Benchmark]: Witness Printer took 4.48 ms. Allocated memory is still 88.1 MB. Free memory is still 32.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:08:32,914 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 54.5 MB. Free memory was 36.3 MB in the beginning and 36.2 MB in the end (delta: 73.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 581.94 ms. Allocated memory is still 54.5 MB. Free memory was 31.6 MB in the beginning and 22.4 MB in the end (delta: 9.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 57.40 ms. Allocated memory was 54.5 MB in the beginning and 73.4 MB in the end (delta: 18.9 MB). Free memory was 22.3 MB in the beginning and 55.4 MB in the end (delta: -33.2 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 45.37 ms. Allocated memory is still 73.4 MB. Free memory was 55.4 MB in the beginning and 54.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 601.58 ms. Allocated memory is still 73.4 MB. Free memory was 53.9 MB in the beginning and 37.2 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4649.21 ms. Allocated memory was 73.4 MB in the beginning and 88.1 MB in the end (delta: 14.7 MB). Free memory was 36.8 MB in the beginning and 32.2 MB in the end (delta: 4.6 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. * Witness Printer took 4.48 ms. Allocated memory is still 88.1 MB. Free memory is still 32.2 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_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_#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_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_#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_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_#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_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_#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_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_#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_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_#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_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_#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_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_#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: 4.5s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 1.5s, 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, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.3s 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, 0.7s 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...