./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/verifythis/tree_max_incorrect.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ee1ef178-87a8-463b-8018-cc88c04d89ac/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ee1ef178-87a8-463b-8018-cc88c04d89ac/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ee1ef178-87a8-463b-8018-cc88c04d89ac/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ee1ef178-87a8-463b-8018-cc88c04d89ac/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/verifythis/tree_max_incorrect.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ee1ef178-87a8-463b-8018-cc88c04d89ac/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ee1ef178-87a8-463b-8018-cc88c04d89ac/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fdb95a531f91b891105aa672579f7a5a4ed687cf ............................................................................................................................................ 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_ee1ef178-87a8-463b-8018-cc88c04d89ac/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ee1ef178-87a8-463b-8018-cc88c04d89ac/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ee1ef178-87a8-463b-8018-cc88c04d89ac/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ee1ef178-87a8-463b-8018-cc88c04d89ac/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/verifythis/tree_max_incorrect.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ee1ef178-87a8-463b-8018-cc88c04d89ac/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ee1ef178-87a8-463b-8018-cc88c04d89ac/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fdb95a531f91b891105aa672579f7a5a4ed687cf ...................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 13:05:19,514 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:05:19,517 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:05:19,593 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:05:19,594 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:05:19,600 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:05:19,603 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:05:19,607 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:05:19,609 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:05:19,620 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:05:19,621 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:05:19,623 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:05:19,623 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:05:19,627 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:05:19,628 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:05:19,630 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:05:19,631 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:05:19,634 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:05:19,637 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:05:19,644 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:05:19,646 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:05:19,648 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:05:19,650 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:05:19,651 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:05:19,654 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:05:19,655 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:05:19,655 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:05:19,657 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:05:19,657 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:05:19,658 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:05:19,659 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:05:19,660 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:05:19,662 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:05:19,663 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:05:19,664 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:05:19,664 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:05:19,665 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:05:19,665 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:05:19,665 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:05:19,666 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:05:19,668 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:05:19,670 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ee1ef178-87a8-463b-8018-cc88c04d89ac/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:05:19,709 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:05:19,710 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:05:19,711 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:05:19,711 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:05:19,712 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:05:19,712 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:05:19,712 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:05:19,712 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:05:19,712 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:05:19,713 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:05:19,714 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:05:19,714 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:05:19,714 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:05:19,715 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:05:19,715 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:05:19,715 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:05:19,716 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:05:19,716 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:05:19,716 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:05:19,716 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:05:19,717 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:05:19,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:05:19,717 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:05:19,717 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:05:19,717 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:05:19,718 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:05:19,718 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:05:19,718 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:05:19,718 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:05:19,719 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:05:19,719 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:05:19,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:05:19,720 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:05:19,720 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:05:19,720 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:05:19,720 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:05:19,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:05:19,721 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:05:19,721 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:05:19,721 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:05:19,721 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_ee1ef178-87a8-463b-8018-cc88c04d89ac/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ee1ef178-87a8-463b-8018-cc88c04d89ac/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fdb95a531f91b891105aa672579f7a5a4ed687cf [2020-11-22 13:05:20,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:05:20,058 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:05:20,060 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:05:20,062 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:05:20,063 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:05:20,064 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ee1ef178-87a8-463b-8018-cc88c04d89ac/bin/utaipan/../../sv-benchmarks/c/verifythis/tree_max_incorrect.c [2020-11-22 13:05:20,142 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ee1ef178-87a8-463b-8018-cc88c04d89ac/bin/utaipan/data/6d6fa6f29/3c1371d981ec4979b033a2a4aab061ba/FLAG04228deb2 [2020-11-22 13:05:20,661 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:05:20,662 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ee1ef178-87a8-463b-8018-cc88c04d89ac/sv-benchmarks/c/verifythis/tree_max_incorrect.c [2020-11-22 13:05:20,673 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ee1ef178-87a8-463b-8018-cc88c04d89ac/bin/utaipan/data/6d6fa6f29/3c1371d981ec4979b033a2a4aab061ba/FLAG04228deb2 [2020-11-22 13:05:21,005 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ee1ef178-87a8-463b-8018-cc88c04d89ac/bin/utaipan/data/6d6fa6f29/3c1371d981ec4979b033a2a4aab061ba [2020-11-22 13:05:21,007 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:05:21,008 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:05:21,010 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:05:21,010 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:05:21,027 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:05:21,029 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:05:21" (1/1) ... [2020-11-22 13:05:21,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@255136b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:21, skipping insertion in model container [2020-11-22 13:05:21,031 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:05:21" (1/1) ... [2020-11-22 13:05:21,038 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:05:21,056 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:05:21,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:05:21,294 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 13:05:21,294 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@37802624 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:21, skipping insertion in model container [2020-11-22 13:05:21,295 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:05:21,295 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-22 13:05:21,300 INFO L168 Benchmark]: Toolchain (without parser) took 287.32 ms. Allocated memory is still 138.4 MB. Free memory was 111.4 MB in the beginning and 117.1 MB in the end (delta: -5.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:21,301 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 86.0 MB. Free memory is still 44.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:05:21,304 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.78 ms. Allocated memory is still 138.4 MB. Free memory was 110.9 MB in the beginning and 117.1 MB in the end (delta: -6.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:21,307 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 86.0 MB. Free memory is still 44.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 284.78 ms. Allocated memory is still 138.4 MB. Free memory was 110.9 MB in the beginning and 117.1 MB in the end (delta: -6.1 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: 23]: 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 13:05:23,553 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:05:23,557 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:05:23,610 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:05:23,611 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:05:23,616 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:05:23,620 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:05:23,624 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:05:23,627 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:05:23,635 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:05:23,637 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:05:23,648 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:05:23,649 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:05:23,650 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:05:23,651 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:05:23,652 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:05:23,652 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:05:23,653 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:05:23,654 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:05:23,656 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:05:23,657 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:05:23,659 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:05:23,660 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:05:23,661 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:05:23,664 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:05:23,665 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:05:23,665 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:05:23,666 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:05:23,667 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:05:23,668 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:05:23,668 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:05:23,669 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:05:23,670 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:05:23,671 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:05:23,672 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:05:23,672 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:05:23,673 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:05:23,673 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:05:23,674 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:05:23,675 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:05:23,676 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:05:23,677 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ee1ef178-87a8-463b-8018-cc88c04d89ac/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 13:05:23,701 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:05:23,701 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:05:23,702 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:05:23,703 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:05:23,703 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:05:23,703 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:05:23,703 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:05:23,704 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:05:23,704 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:05:23,704 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:05:23,705 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:05:23,705 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:05:23,705 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:05:23,705 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:05:23,705 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:05:23,706 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:05:23,706 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:05:23,706 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 13:05:23,706 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 13:05:23,706 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:05:23,707 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:05:23,707 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:05:23,707 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:05:23,707 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:05:23,707 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 13:05:23,708 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:05:23,708 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:05:23,708 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:05:23,708 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:05:23,708 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:05:23,709 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:05:23,709 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 13:05:23,709 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 13:05:23,709 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:05:23,709 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:05:23,710 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:05:23,710 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_ee1ef178-87a8-463b-8018-cc88c04d89ac/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ee1ef178-87a8-463b-8018-cc88c04d89ac/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fdb95a531f91b891105aa672579f7a5a4ed687cf [2020-11-22 13:05:24,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:05:24,085 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:05:24,089 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:05:24,090 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:05:24,092 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:05:24,093 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ee1ef178-87a8-463b-8018-cc88c04d89ac/bin/utaipan/../../sv-benchmarks/c/verifythis/tree_max_incorrect.c [2020-11-22 13:05:24,174 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ee1ef178-87a8-463b-8018-cc88c04d89ac/bin/utaipan/data/8944f4e17/6f86e5bd227c460aba480bd91a9d423e/FLAG027fe51b7 [2020-11-22 13:05:24,662 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:05:24,663 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ee1ef178-87a8-463b-8018-cc88c04d89ac/sv-benchmarks/c/verifythis/tree_max_incorrect.c [2020-11-22 13:05:24,670 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ee1ef178-87a8-463b-8018-cc88c04d89ac/bin/utaipan/data/8944f4e17/6f86e5bd227c460aba480bd91a9d423e/FLAG027fe51b7 [2020-11-22 13:05:25,024 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ee1ef178-87a8-463b-8018-cc88c04d89ac/bin/utaipan/data/8944f4e17/6f86e5bd227c460aba480bd91a9d423e [2020-11-22 13:05:25,026 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:05:25,028 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:05:25,029 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:05:25,029 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:05:25,033 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:05:25,034 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:05:25" (1/1) ... [2020-11-22 13:05:25,036 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ddde6a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:25, skipping insertion in model container [2020-11-22 13:05:25,036 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:05:25" (1/1) ... [2020-11-22 13:05:25,043 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:05:25,057 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:05:25,206 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:05:25,236 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-22 13:05:25,243 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:05:25,253 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:05:25,258 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:05:25,312 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:05:25,335 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:05:25,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:25 WrapperNode [2020-11-22 13:05:25,336 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:05:25,337 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:05:25,338 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:05:25,338 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:05:25,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:25" (1/1) ... [2020-11-22 13:05:25,354 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:25" (1/1) ... [2020-11-22 13:05:25,372 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:05:25,373 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:05:25,373 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:05:25,374 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:05:25,381 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:25" (1/1) ... [2020-11-22 13:05:25,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:25" (1/1) ... [2020-11-22 13:05:25,385 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:25" (1/1) ... [2020-11-22 13:05:25,385 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:25" (1/1) ... [2020-11-22 13:05:25,395 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:25" (1/1) ... [2020-11-22 13:05:25,397 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:25" (1/1) ... [2020-11-22 13:05:25,399 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:25" (1/1) ... [2020-11-22 13:05:25,403 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:05:25,403 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:05:25,404 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:05:25,404 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:05:25,405 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee1ef178-87a8-463b-8018-cc88c04d89ac/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 13:05:25,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-22 13:05:25,481 INFO L130 BoogieDeclarations]: Found specification of procedure max [2020-11-22 13:05:25,482 INFO L138 BoogieDeclarations]: Found implementation of procedure max [2020-11-22 13:05:25,482 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_tree [2020-11-22 13:05:25,482 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_tree [2020-11-22 13:05:25,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 13:05:25,482 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-11-22 13:05:25,482 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-11-22 13:05:25,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-22 13:05:25,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:05:25,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-22 13:05:25,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-22 13:05:25,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:05:25,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:05:25,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-22 13:05:26,080 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:05:26,082 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-22 13:05:26,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:05:26 BoogieIcfgContainer [2020-11-22 13:05:26,085 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:05:26,089 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:05:26,089 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:05:26,092 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:05:26,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:05:25" (1/3) ... [2020-11-22 13:05:26,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15aa5b53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:05:26, skipping insertion in model container [2020-11-22 13:05:26,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:25" (2/3) ... [2020-11-22 13:05:26,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15aa5b53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:05:26, skipping insertion in model container [2020-11-22 13:05:26,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:05:26" (3/3) ... [2020-11-22 13:05:26,099 INFO L111 eAbstractionObserver]: Analyzing ICFG tree_max_incorrect.c [2020-11-22 13:05:26,109 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:05:26,113 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 13:05:26,125 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 13:05:26,159 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:05:26,159 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:05:26,160 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:05:26,160 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:05:26,160 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:05:26,160 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:05:26,160 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:05:26,160 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:05:26,177 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2020-11-22 13:05:26,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-22 13:05:26,184 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:26,185 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:05:26,185 INFO L429 AbstractCegarLoop]: === Iteration 1 === [checkErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:05:26,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:26,191 INFO L82 PathProgramCache]: Analyzing trace with hash -21493180, now seen corresponding path program 1 times [2020-11-22 13:05:26,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:05:26,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1196931281] [2020-11-22 13:05:26,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee1ef178-87a8-463b-8018-cc88c04d89ac/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 13:05:26,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:05:26,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-22 13:05:26,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:05:26,467 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 13:05:26,470 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:05:26,557 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 13:05:26,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1196931281] [2020-11-22 13:05:26,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:05:26,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2020-11-22 13:05:26,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876876550] [2020-11-22 13:05:26,569 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-22 13:05:26,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:05:26,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-22 13:05:26,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:05:26,587 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 7 states. [2020-11-22 13:05:26,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:05:26,768 INFO L93 Difference]: Finished difference Result 74 states and 97 transitions. [2020-11-22 13:05:26,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-22 13:05:26,771 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-11-22 13:05:26,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:05:26,782 INFO L225 Difference]: With dead ends: 74 [2020-11-22 13:05:26,782 INFO L226 Difference]: Without dead ends: 34 [2020-11-22 13:05:26,788 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-11-22 13:05:26,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-22 13:05:26,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-11-22 13:05:26,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-22 13:05:26,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 43 transitions. [2020-11-22 13:05:26,836 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 43 transitions. Word has length 18 [2020-11-22 13:05:26,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:05:26,837 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 43 transitions. [2020-11-22 13:05:26,837 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-22 13:05:26,838 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 43 transitions. [2020-11-22 13:05:26,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-22 13:05:26,841 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:26,841 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:05:27,058 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 13:05:27,058 INFO L429 AbstractCegarLoop]: === Iteration 2 === [checkErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:05:27,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:27,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1041522055, now seen corresponding path program 1 times [2020-11-22 13:05:27,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:05:27,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [317126318] [2020-11-22 13:05:27,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee1ef178-87a8-463b-8018-cc88c04d89ac/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 13:05:27,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:05:27,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-22 13:05:27,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:05:27,285 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-22 13:05:27,285 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:05:27,433 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-22 13:05:27,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [317126318] [2020-11-22 13:05:27,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:05:27,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 9 [2020-11-22 13:05:27,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050307206] [2020-11-22 13:05:27,435 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-22 13:05:27,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:05:27,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-22 13:05:27,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-11-22 13:05:27,436 INFO L87 Difference]: Start difference. First operand 34 states and 43 transitions. Second operand 9 states. [2020-11-22 13:05:27,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:05:27,635 INFO L93 Difference]: Finished difference Result 47 states and 59 transitions. [2020-11-22 13:05:27,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-22 13:05:27,637 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2020-11-22 13:05:27,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:05:27,652 INFO L225 Difference]: With dead ends: 47 [2020-11-22 13:05:27,652 INFO L226 Difference]: Without dead ends: 36 [2020-11-22 13:05:27,653 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-11-22 13:05:27,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-11-22 13:05:27,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-11-22 13:05:27,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-11-22 13:05:27,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 46 transitions. [2020-11-22 13:05:27,669 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 46 transitions. Word has length 28 [2020-11-22 13:05:27,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:05:27,669 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 46 transitions. [2020-11-22 13:05:27,669 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-22 13:05:27,669 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 46 transitions. [2020-11-22 13:05:27,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-11-22 13:05:27,673 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:27,673 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:05:27,885 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 13:05:27,885 INFO L429 AbstractCegarLoop]: === Iteration 3 === [checkErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:05:27,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:27,886 INFO L82 PathProgramCache]: Analyzing trace with hash 1590309937, now seen corresponding path program 1 times [2020-11-22 13:05:27,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:05:27,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1630838575] [2020-11-22 13:05:27,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee1ef178-87a8-463b-8018-cc88c04d89ac/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 13:05:28,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:05:28,020 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:05:28,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:05:28,121 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:05:28,182 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-22 13:05:28,182 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:05:28,392 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 13:05:28,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:05:28 BoogieIcfgContainer [2020-11-22 13:05:28,456 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:05:28,457 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:05:28,457 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:05:28,457 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:05:28,458 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:05:26" (3/4) ... [2020-11-22 13:05:28,460 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 13:05:28,555 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ee1ef178-87a8-463b-8018-cc88c04d89ac/bin/utaipan/witness.graphml [2020-11-22 13:05:28,555 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:05:28,557 INFO L168 Benchmark]: Toolchain (without parser) took 3528.68 ms. Allocated memory was 52.4 MB in the beginning and 81.8 MB in the end (delta: 29.4 MB). Free memory was 29.1 MB in the beginning and 34.3 MB in the end (delta: -5.2 MB). Peak memory consumption was 22.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:28,559 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 52.4 MB. Free memory was 34.4 MB in the beginning and 34.3 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:05:28,562 INFO L168 Benchmark]: CACSL2BoogieTranslator took 307.41 ms. Allocated memory was 52.4 MB in the beginning and 65.0 MB in the end (delta: 12.6 MB). Free memory was 28.9 MB in the beginning and 47.0 MB in the end (delta: -18.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:28,563 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.24 ms. Allocated memory is still 65.0 MB. Free memory was 47.0 MB in the beginning and 45.3 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:05:28,563 INFO L168 Benchmark]: Boogie Preprocessor took 29.64 ms. Allocated memory is still 65.0 MB. Free memory was 45.3 MB in the beginning and 44.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:28,564 INFO L168 Benchmark]: RCFGBuilder took 681.72 ms. Allocated memory is still 65.0 MB. Free memory was 44.0 MB in the beginning and 43.0 MB in the end (delta: 943.2 kB). Peak memory consumption was 17.7 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:28,564 INFO L168 Benchmark]: TraceAbstraction took 2367.46 ms. Allocated memory was 65.0 MB in the beginning and 81.8 MB in the end (delta: 16.8 MB). Free memory was 42.3 MB in the beginning and 38.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 20.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:28,565 INFO L168 Benchmark]: Witness Printer took 98.50 ms. Allocated memory is still 81.8 MB. Free memory was 38.2 MB in the beginning and 34.3 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:28,567 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 52.4 MB. Free memory was 34.4 MB in the beginning and 34.3 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 307.41 ms. Allocated memory was 52.4 MB in the beginning and 65.0 MB in the end (delta: 12.6 MB). Free memory was 28.9 MB in the beginning and 47.0 MB in the end (delta: -18.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.24 ms. Allocated memory is still 65.0 MB. Free memory was 47.0 MB in the beginning and 45.3 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.64 ms. Allocated memory is still 65.0 MB. Free memory was 45.3 MB in the beginning and 44.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 681.72 ms. Allocated memory is still 65.0 MB. Free memory was 44.0 MB in the beginning and 43.0 MB in the end (delta: 943.2 kB). Peak memory consumption was 17.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2367.46 ms. Allocated memory was 65.0 MB in the beginning and 81.8 MB in the end (delta: 16.8 MB). Free memory was 42.3 MB in the beginning and 38.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 20.2 MB. Max. memory is 16.1 GB. * Witness Printer took 98.50 ms. Allocated memory is still 81.8 MB. Free memory was 38.2 MB in the beginning and 34.3 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 9]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L60] CALL nondet_tree() [L20] COND FALSE !(__VERIFIER_nondet_bool()) [L23] struct node *n = (struct node *)malloc(sizeof(struct node)); [L24] n->data = __VERIFIER_nondet_int() [L25] CALL, EXPR nondet_tree() [L20] COND TRUE __VERIFIER_nondet_bool() [L21] return 0; VAL [\result={0:0}] [L25] RET, EXPR nondet_tree() VAL [malloc(sizeof(struct node))={1:0}, n={1:0}, nondet_tree()={0:0}] [L25] n->left = nondet_tree() [L26] CALL, EXPR nondet_tree() [L20] COND TRUE __VERIFIER_nondet_bool() [L21] return 0; VAL [\result={0:0}] [L26] RET, EXPR nondet_tree() VAL [malloc(sizeof(struct node))={1:0}, n={1:0}, nondet_tree()={0:0}] [L26] n->right = nondet_tree() [L27] return n; VAL [\result={1:0}, malloc(sizeof(struct node))={1:0}, n={1:0}] [L60] RET nondet_tree() [L55] CALL, EXPR max(n) VAL [n={1:0}] [L32] COND FALSE !(!n) [L35] EXPR n->left VAL [n={1:0}, n={1:0}, n->left={0:0}] [L35] CALL, EXPR max(n->left) VAL [n={0:0}] [L32] COND TRUE !n [L33] return -2147483648; VAL [\result=-2147483648, n={0:0}, n={0:0}] [L35] RET, EXPR max(n->left) VAL [max(n->left)=-2147483648, n={1:0}, n={1:0}, n->left={0:0}] [L35] int a = max(n->left); [L36] EXPR n->right VAL [a=2147483648, n={1:0}, n={1:0}, n->right={0:0}] [L36] CALL, EXPR max(n->right) VAL [n={0:0}] [L32] COND TRUE !n [L33] return -2147483648; VAL [\result=-2147483648, n={0:0}, n={0:0}] [L36] RET, EXPR max(n->right) VAL [a=2147483648, max(n->right)=-2147483648, n={1:0}, n={1:0}, n->right={0:0}] [L36] int b = max(n->right); [L37] COND TRUE a >= b [L37] return a; VAL [\result=-2147483648, a=2147483648, b=2147483648, n={1:0}, n={1:0}] [L55] RET, EXPR max(n) [L55] int a = max(n); [L56] CALL check(n, a) [L43] COND TRUE \read(*n) [L44] n->data [L11] COND TRUE !cond [L9] __assert_fail("0", "tree_max_incorrect.c", 9, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.2s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 82 SDtfs, 24 SDslu, 427 SDs, 0 SdLazy, 103 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 87 NumberOfCodeBlocks, 87 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 88 ConstructedInterpolants, 0 QuantifiedInterpolants, 5423 SizeOfPredicates, 13 NumberOfNonLiveVariables, 189 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 18/18 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 proved your program to be incorrect! Received shutdown request...