./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs --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 64bit --witnessprinter.graph.data.programhash 52a5b40e07f9d2025e21e89532c54ecb2612af1d6384644534b1ef79f7198c6a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:46:16,743 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:46:16,748 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:46:16,821 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:46:16,822 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:46:16,828 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:46:16,830 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:46:16,835 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:46:16,839 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:46:16,846 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:46:16,848 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:46:16,851 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:46:16,852 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:46:16,855 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:46:16,859 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:46:16,864 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:46:16,867 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:46:16,868 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:46:16,871 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:46:16,885 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:46:16,888 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:46:16,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:46:16,895 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:46:16,896 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:46:16,908 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:46:16,908 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:46:16,909 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:46:16,912 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:46:16,913 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:46:16,915 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:46:16,915 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:46:16,917 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:46:16,927 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:46:16,929 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:46:16,931 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:46:16,932 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:46:16,933 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:46:16,933 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:46:16,934 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:46:16,935 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:46:16,936 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:46:16,937 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 14:46:17,006 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:46:17,006 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:46:17,008 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:46:17,008 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:46:17,009 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:46:17,009 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:46:17,009 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:46:17,010 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:46:17,010 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:46:17,010 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:46:17,012 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:46:17,012 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:46:17,012 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:46:17,013 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:46:17,013 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:46:17,013 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:46:17,014 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:46:17,015 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:46:17,015 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:46:17,015 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:46:17,016 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:46:17,016 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:46:17,016 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:46:17,016 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:46:17,017 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:46:17,017 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:46:17,017 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:46:17,018 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:46:17,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:46:17,018 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:46:17,019 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:46:17,019 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:46:17,019 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:46:17,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:46:17,020 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:46:17,020 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:46:17,020 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:46:17,021 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52a5b40e07f9d2025e21e89532c54ecb2612af1d6384644534b1ef79f7198c6a [2021-11-19 14:46:17,401 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:46:17,428 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:46:17,432 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:46:17,434 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:46:17,435 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:46:17,437 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i [2021-11-19 14:46:17,517 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/data/625607be7/da6d4b7040784ecca7e785ead8162da0/FLAGdcdc4bb9c [2021-11-19 14:46:18,705 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:46:18,707 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i [2021-11-19 14:46:18,761 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/data/625607be7/da6d4b7040784ecca7e785ead8162da0/FLAGdcdc4bb9c [2021-11-19 14:46:19,081 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/data/625607be7/da6d4b7040784ecca7e785ead8162da0 [2021-11-19 14:46:19,084 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:46:19,086 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:46:19,089 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:46:19,089 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:46:19,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:46:19,095 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:46:19" (1/1) ... [2021-11-19 14:46:19,096 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22a5e498 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:19, skipping insertion in model container [2021-11-19 14:46:19,097 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:46:19" (1/1) ... [2021-11-19 14:46:19,107 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:46:19,273 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:46:19,577 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i[4500,4513] [2021-11-19 14:46:19,589 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i[4560,4573] [2021-11-19 14:46:19,618 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 14:46:19,628 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 14:46:20,662 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:20,663 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:20,664 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:20,665 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:20,667 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:20,693 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:20,701 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:20,705 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:20,710 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:20,715 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:20,718 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:20,719 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:20,720 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:21,200 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 14:46:21,202 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 14:46:21,204 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 14:46:21,206 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 14:46:21,208 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 14:46:21,209 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 14:46:21,210 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 14:46:21,211 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 14:46:21,212 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 14:46:21,214 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 14:46:21,392 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 14:46:21,425 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:46:21,447 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 14:46:21,448 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@b97bea2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:21, skipping insertion in model container [2021-11-19 14:46:21,448 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:46:21,449 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:46:21,455 INFO L158 Benchmark]: Toolchain (without parser) took 2363.76ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 60.5MB in the beginning and 59.4MB in the end (delta: 1.1MB). Peak memory consumption was 26.9MB. Max. memory is 16.1GB. [2021-11-19 14:46:21,455 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 96.5MB. Free memory is still 66.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:46:21,456 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2359.96ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 60.4MB in the beginning and 59.4MB in the end (delta: 997.9kB). Peak memory consumption was 26.9MB. Max. memory is 16.1GB. [2021-11-19 14:46:21,458 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 96.5MB. Free memory is still 66.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2359.96ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 60.4MB in the beginning and 59.4MB in the end (delta: 997.9kB). Peak memory consumption was 26.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7037]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs --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 64bit --witnessprinter.graph.data.programhash 52a5b40e07f9d2025e21e89532c54ecb2612af1d6384644534b1ef79f7198c6a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:46:24,384 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:46:24,388 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:46:24,455 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:46:24,456 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:46:24,461 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:46:24,464 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:46:24,469 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:46:24,474 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:46:24,483 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:46:24,485 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:46:24,488 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:46:24,489 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:46:24,492 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:46:24,495 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:46:24,500 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:46:24,503 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:46:24,504 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:46:24,507 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:46:24,517 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:46:24,520 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:46:24,521 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:46:24,525 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:46:24,528 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:46:24,539 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:46:24,540 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:46:24,541 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:46:24,543 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:46:24,544 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:46:24,546 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:46:24,547 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:46:24,548 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:46:24,551 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:46:24,552 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:46:24,554 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:46:24,555 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:46:24,556 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:46:24,556 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:46:24,557 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:46:24,559 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:46:24,560 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:46:24,567 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 14:46:24,626 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:46:24,626 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:46:24,628 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:46:24,628 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:46:24,628 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:46:24,629 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:46:24,629 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:46:24,629 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:46:24,630 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:46:24,630 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:46:24,633 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:46:24,634 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:46:24,634 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:46:24,634 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:46:24,634 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:46:24,635 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:46:24,635 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:46:24,635 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:46:24,636 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:46:24,636 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:46:24,636 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:46:24,637 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:46:24,637 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:46:24,637 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:46:24,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:46:24,638 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:46:24,638 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:46:24,639 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:46:24,639 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:46:24,639 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:46:24,640 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:46:24,640 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:46:24,640 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:46:24,641 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52a5b40e07f9d2025e21e89532c54ecb2612af1d6384644534b1ef79f7198c6a [2021-11-19 14:46:25,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:46:25,248 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:46:25,252 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:46:25,253 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:46:25,255 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:46:25,256 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i [2021-11-19 14:46:25,355 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/data/7272afd43/c8faa0a2213747be8ae277abe8581584/FLAG6997fd91e [2021-11-19 14:46:26,518 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:46:26,519 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i [2021-11-19 14:46:26,573 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/data/7272afd43/c8faa0a2213747be8ae277abe8581584/FLAG6997fd91e [2021-11-19 14:46:26,935 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/data/7272afd43/c8faa0a2213747be8ae277abe8581584 [2021-11-19 14:46:26,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:46:26,939 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:46:26,941 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:46:26,941 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:46:26,945 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:46:26,946 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:46:26" (1/1) ... [2021-11-19 14:46:26,948 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5439f070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:26, skipping insertion in model container [2021-11-19 14:46:26,948 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:46:26" (1/1) ... [2021-11-19 14:46:26,963 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:46:27,126 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:46:27,484 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i[4500,4513] [2021-11-19 14:46:27,503 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i[4560,4573] [2021-11-19 14:46:27,533 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 14:46:27,542 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 14:46:28,636 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:28,637 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:28,638 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:28,639 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:28,640 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:28,661 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:28,662 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:28,665 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:28,666 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:28,669 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:28,671 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:28,672 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:28,672 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:29,182 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 14:46:29,184 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 14:46:29,185 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 14:46:29,187 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 14:46:29,189 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 14:46:29,190 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 14:46:29,191 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 14:46:29,192 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 14:46:29,193 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 14:46:29,194 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 14:46:29,414 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 14:46:29,449 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:46:29,496 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:46:29,550 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:46:29,563 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i[4500,4513] [2021-11-19 14:46:29,568 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i[4560,4573] [2021-11-19 14:46:29,579 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 14:46:29,580 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 14:46:29,687 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:29,687 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:29,703 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:29,704 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:29,705 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:29,716 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:29,716 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:29,718 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:29,719 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:29,720 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:29,721 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:29,722 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:29,723 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:29,797 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 14:46:29,800 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 14:46:29,801 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 14:46:29,803 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 14:46:29,811 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 14:46:29,812 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 14:46:29,813 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 14:46:29,814 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 14:46:29,815 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 14:46:29,815 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 14:46:29,890 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 14:46:29,925 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:46:29,951 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:46:29,985 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i[4500,4513] [2021-11-19 14:46:29,986 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i[4560,4573] [2021-11-19 14:46:29,988 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 14:46:29,996 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 14:46:30,070 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:30,070 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:30,071 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:30,071 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:30,074 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:30,086 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:30,087 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:30,090 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:30,091 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:30,092 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:30,093 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:30,094 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:30,095 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:46:30,196 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 14:46:30,198 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 14:46:30,199 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 14:46:30,200 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 14:46:30,201 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 14:46:30,202 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 14:46:30,202 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 14:46:30,204 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 14:46:30,204 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 14:46:30,205 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 14:46:30,252 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 14:46:30,283 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:46:30,609 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:46:30,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:30 WrapperNode [2021-11-19 14:46:30,622 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:46:30,623 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:46:30,624 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:46:30,624 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:46:30,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:30" (1/1) ... [2021-11-19 14:46:30,811 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:30" (1/1) ... [2021-11-19 14:46:30,900 INFO L137 Inliner]: procedures = 700, calls = 1050, calls flagged for inlining = 52, calls inlined = 6, statements flattened = 152 [2021-11-19 14:46:30,901 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:46:30,902 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:46:30,902 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:46:30,902 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:46:30,913 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:30" (1/1) ... [2021-11-19 14:46:30,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:30" (1/1) ... [2021-11-19 14:46:30,932 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:30" (1/1) ... [2021-11-19 14:46:30,933 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:30" (1/1) ... [2021-11-19 14:46:30,973 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:30" (1/1) ... [2021-11-19 14:46:31,001 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:30" (1/1) ... [2021-11-19 14:46:31,008 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:30" (1/1) ... [2021-11-19 14:46:31,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:46:31,028 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:46:31,028 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:46:31,028 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:46:31,029 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:30" (1/1) ... [2021-11-19 14:46:31,038 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:46:31,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:46:31,069 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:46:31,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:46:31,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:46:31,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:46:31,128 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-19 14:46:31,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-19 14:46:31,129 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2021-11-19 14:46:31,129 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2021-11-19 14:46:31,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:46:31,129 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_is_valid [2021-11-19 14:46:31,129 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_is_valid [2021-11-19 14:46:31,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:46:31,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:46:31,130 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_insert_before [2021-11-19 14:46:31,130 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_insert_before [2021-11-19 14:46:31,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:46:31,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:46:31,130 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-19 14:46:31,130 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-19 14:46:31,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:46:31,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:46:31,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 14:46:31,131 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-19 14:46:31,131 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-19 14:46:31,131 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_prev_is_valid [2021-11-19 14:46:31,132 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_prev_is_valid [2021-11-19 14:46:31,586 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:46:31,589 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:46:32,260 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:46:32,274 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:46:32,274 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-19 14:46:32,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:46:32 BoogieIcfgContainer [2021-11-19 14:46:32,277 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:46:32,279 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:46:32,280 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:46:32,304 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:46:32,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:46:26" (1/3) ... [2021-11-19 14:46:32,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c8b9e24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:46:32, skipping insertion in model container [2021-11-19 14:46:32,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:30" (2/3) ... [2021-11-19 14:46:32,306 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c8b9e24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:46:32, skipping insertion in model container [2021-11-19 14:46:32,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:46:32" (3/3) ... [2021-11-19 14:46:32,307 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_linked_list_push_front_harness.i [2021-11-19 14:46:32,314 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:46:32,315 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 14:46:32,425 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:46:32,444 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 14:46:32,445 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 14:46:32,470 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 67 states have (on average 1.2835820895522387) internal successors, (86), 68 states have internal predecessors, (86), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-11-19 14:46:32,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-19 14:46:32,482 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:46:32,483 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:46:32,484 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:46:32,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:46:32,504 INFO L85 PathProgramCache]: Analyzing trace with hash 2111829670, now seen corresponding path program 1 times [2021-11-19 14:46:32,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:46:32,524 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2006413482] [2021-11-19 14:46:32,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:46:32,525 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:46:32,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:46:32,530 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:46:32,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:46:32,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:46:32,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-19 14:46:32,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:46:33,281 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-19 14:46:33,282 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:46:33,552 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-11-19 14:46:33,553 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:46:33,553 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2006413482] [2021-11-19 14:46:33,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2006413482] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:46:33,554 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:46:33,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 14:46:33,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754440295] [2021-11-19 14:46:33,558 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:46:33,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 14:46:33,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:46:33,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 14:46:33,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 14:46:33,622 INFO L87 Difference]: Start difference. First operand has 104 states, 67 states have (on average 1.2835820895522387) internal successors, (86), 68 states have internal predecessors, (86), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-19 14:46:33,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:46:33,719 INFO L93 Difference]: Finished difference Result 200 states and 295 transitions. [2021-11-19 14:46:33,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 14:46:33,723 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 74 [2021-11-19 14:46:33,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:46:33,749 INFO L225 Difference]: With dead ends: 200 [2021-11-19 14:46:33,755 INFO L226 Difference]: Without dead ends: 99 [2021-11-19 14:46:33,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 14:46:33,769 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:46:33,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:46:33,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-11-19 14:46:33,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2021-11-19 14:46:33,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 63 states have (on average 1.2380952380952381) internal successors, (78), 64 states have internal predecessors, (78), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2021-11-19 14:46:33,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 133 transitions. [2021-11-19 14:46:33,877 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 133 transitions. Word has length 74 [2021-11-19 14:46:33,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:46:33,877 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 133 transitions. [2021-11-19 14:46:33,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-19 14:46:33,878 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 133 transitions. [2021-11-19 14:46:33,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-19 14:46:33,886 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:46:33,887 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:46:33,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:46:34,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:46:34,109 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:46:34,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:46:34,110 INFO L85 PathProgramCache]: Analyzing trace with hash 839656352, now seen corresponding path program 1 times [2021-11-19 14:46:34,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:46:34,112 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1614368112] [2021-11-19 14:46:34,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:46:34,113 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:46:34,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:46:34,120 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:46:34,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:46:34,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:46:34,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:46:34,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:46:34,719 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-19 14:46:34,720 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:46:34,943 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-19 14:46:34,944 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:46:34,944 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1614368112] [2021-11-19 14:46:34,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1614368112] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:46:34,945 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:46:34,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-19 14:46:34,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246104456] [2021-11-19 14:46:34,945 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:46:34,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:46:34,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:46:34,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:46:34,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:46:34,951 INFO L87 Difference]: Start difference. First operand 99 states and 133 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-19 14:46:35,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:46:35,023 INFO L93 Difference]: Finished difference Result 188 states and 259 transitions. [2021-11-19 14:46:35,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:46:35,024 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 74 [2021-11-19 14:46:35,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:46:35,028 INFO L225 Difference]: With dead ends: 188 [2021-11-19 14:46:35,028 INFO L226 Difference]: Without dead ends: 103 [2021-11-19 14:46:35,031 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:46:35,032 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 3 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:46:35,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 385 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:46:35,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-11-19 14:46:35,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 102. [2021-11-19 14:46:35,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 66 states have (on average 1.2272727272727273) internal successors, (81), 67 states have internal predecessors, (81), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2021-11-19 14:46:35,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 136 transitions. [2021-11-19 14:46:35,055 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 136 transitions. Word has length 74 [2021-11-19 14:46:35,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:46:35,057 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 136 transitions. [2021-11-19 14:46:35,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-19 14:46:35,058 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 136 transitions. [2021-11-19 14:46:35,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-19 14:46:35,060 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:46:35,060 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:46:35,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:46:35,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:46:35,283 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:46:35,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:46:35,283 INFO L85 PathProgramCache]: Analyzing trace with hash 358576094, now seen corresponding path program 1 times [2021-11-19 14:46:35,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:46:35,285 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [453812036] [2021-11-19 14:46:35,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:46:35,285 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:46:35,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:46:35,290 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:46:35,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:46:35,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:46:35,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:46:35,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:46:35,822 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-19 14:46:35,822 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:46:36,111 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-11-19 14:46:36,112 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:46:36,112 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [453812036] [2021-11-19 14:46:36,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [453812036] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:46:36,112 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:46:36,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 7 [2021-11-19 14:46:36,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082159405] [2021-11-19 14:46:36,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:46:36,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:46:36,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:46:36,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:46:36,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:46:36,116 INFO L87 Difference]: Start difference. First operand 102 states and 136 transitions. Second operand has 6 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-11-19 14:46:36,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:46:36,253 INFO L93 Difference]: Finished difference Result 192 states and 259 transitions. [2021-11-19 14:46:36,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:46:36,254 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 74 [2021-11-19 14:46:36,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:46:36,266 INFO L225 Difference]: With dead ends: 192 [2021-11-19 14:46:36,267 INFO L226 Difference]: Without dead ends: 104 [2021-11-19 14:46:36,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:46:36,277 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 2 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:46:36,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 617 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:46:36,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-11-19 14:46:36,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2021-11-19 14:46:36,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 67 states have (on average 1.2238805970149254) internal successors, (82), 69 states have internal predecessors, (82), 28 states have call successors, (28), 7 states have call predecessors, (28), 8 states have return successors, (29), 27 states have call predecessors, (29), 27 states have call successors, (29) [2021-11-19 14:46:36,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 139 transitions. [2021-11-19 14:46:36,313 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 139 transitions. Word has length 74 [2021-11-19 14:46:36,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:46:36,316 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 139 transitions. [2021-11-19 14:46:36,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-11-19 14:46:36,317 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 139 transitions. [2021-11-19 14:46:36,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-19 14:46:36,323 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:46:36,324 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:46:36,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:46:36,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:46:36,539 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:46:36,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:46:36,540 INFO L85 PathProgramCache]: Analyzing trace with hash 87330846, now seen corresponding path program 1 times [2021-11-19 14:46:36,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:46:36,541 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1185764877] [2021-11-19 14:46:36,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:46:36,541 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:46:36,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:46:36,543 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:46:36,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:46:36,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:46:36,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:46:36,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:46:37,108 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-19 14:46:37,108 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:46:37,444 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-11-19 14:46:37,444 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:46:37,444 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1185764877] [2021-11-19 14:46:37,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1185764877] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:46:37,444 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:46:37,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2021-11-19 14:46:37,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083027867] [2021-11-19 14:46:37,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:46:37,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:46:37,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:46:37,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:46:37,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:46:37,447 INFO L87 Difference]: Start difference. First operand 104 states and 139 transitions. Second operand has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-11-19 14:46:37,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:46:37,591 INFO L93 Difference]: Finished difference Result 197 states and 266 transitions. [2021-11-19 14:46:37,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 14:46:37,592 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 76 [2021-11-19 14:46:37,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:46:37,595 INFO L225 Difference]: With dead ends: 197 [2021-11-19 14:46:37,595 INFO L226 Difference]: Without dead ends: 107 [2021-11-19 14:46:37,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:46:37,597 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 4 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:46:37,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 751 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:46:37,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-11-19 14:46:37,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 105. [2021-11-19 14:46:37,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 68 states have (on average 1.2205882352941178) internal successors, (83), 70 states have internal predecessors, (83), 28 states have call successors, (28), 7 states have call predecessors, (28), 8 states have return successors, (29), 27 states have call predecessors, (29), 27 states have call successors, (29) [2021-11-19 14:46:37,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 140 transitions. [2021-11-19 14:46:37,616 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 140 transitions. Word has length 76 [2021-11-19 14:46:37,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:46:37,616 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 140 transitions. [2021-11-19 14:46:37,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-11-19 14:46:37,617 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 140 transitions. [2021-11-19 14:46:37,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-19 14:46:37,619 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:46:37,619 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:46:37,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:46:37,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:46:37,845 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:46:37,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:46:37,846 INFO L85 PathProgramCache]: Analyzing trace with hash 958884107, now seen corresponding path program 1 times [2021-11-19 14:46:37,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:46:37,847 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [663656596] [2021-11-19 14:46:37,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:46:37,848 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:46:37,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:46:37,849 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:46:37,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:46:38,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:46:38,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:46:38,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:46:38,455 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-19 14:46:38,455 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:46:38,917 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-19 14:46:38,918 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:46:38,918 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [663656596] [2021-11-19 14:46:38,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [663656596] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:46:38,918 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:46:38,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2021-11-19 14:46:38,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111477061] [2021-11-19 14:46:38,919 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:46:38,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 14:46:38,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:46:38,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 14:46:38,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-19 14:46:38,922 INFO L87 Difference]: Start difference. First operand 105 states and 140 transitions. Second operand has 9 states, 8 states have (on average 7.375) internal successors, (59), 9 states have internal predecessors, (59), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-19 14:46:39,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:46:39,101 INFO L93 Difference]: Finished difference Result 145 states and 186 transitions. [2021-11-19 14:46:39,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:46:39,102 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 9 states have internal predecessors, (59), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 78 [2021-11-19 14:46:39,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:46:39,103 INFO L225 Difference]: With dead ends: 145 [2021-11-19 14:46:39,103 INFO L226 Difference]: Without dead ends: 0 [2021-11-19 14:46:39,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-11-19 14:46:39,105 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 54 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:46:39,105 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 230 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:46:39,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-19 14:46:39,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-19 14:46:39,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:46:39,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-19 14:46:39,112 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 78 [2021-11-19 14:46:39,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:46:39,113 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 14:46:39,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 9 states have internal predecessors, (59), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-19 14:46:39,113 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-19 14:46:39,113 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-19 14:46:39,121 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-19 14:46:39,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:46:39,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:46:39,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-19 14:46:39,498 INFO L858 garLoopResultBuilder]: For program point aws_linked_list_node_next_is_validFINAL(lines 4715 4719) no Hoare annotation was computed. [2021-11-19 14:46:39,498 INFO L858 garLoopResultBuilder]: For program point aws_linked_list_node_next_is_validEXIT(lines 4715 4719) no Hoare annotation was computed. [2021-11-19 14:46:39,498 INFO L858 garLoopResultBuilder]: For program point L4718(line 4718) no Hoare annotation was computed. [2021-11-19 14:46:39,499 INFO L858 garLoopResultBuilder]: For program point L4718-3(line 4718) no Hoare annotation was computed. [2021-11-19 14:46:39,499 INFO L858 garLoopResultBuilder]: For program point L4718-2(line 4718) no Hoare annotation was computed. [2021-11-19 14:46:39,499 INFO L858 garLoopResultBuilder]: For program point L4718-5(line 4718) no Hoare annotation was computed. [2021-11-19 14:46:39,499 INFO L861 garLoopResultBuilder]: At program point aws_linked_list_node_next_is_validENTRY(lines 4715 4719) the Hoare annotation is: true [2021-11-19 14:46:39,499 INFO L858 garLoopResultBuilder]: For program point aws_linked_list_node_prev_is_validFINAL(lines 4726 4730) no Hoare annotation was computed. [2021-11-19 14:46:39,499 INFO L858 garLoopResultBuilder]: For program point aws_linked_list_node_prev_is_validEXIT(lines 4726 4730) no Hoare annotation was computed. [2021-11-19 14:46:39,500 INFO L858 garLoopResultBuilder]: For program point L4729-2(line 4729) no Hoare annotation was computed. [2021-11-19 14:46:39,500 INFO L858 garLoopResultBuilder]: For program point L4729-3(line 4729) no Hoare annotation was computed. [2021-11-19 14:46:39,500 INFO L858 garLoopResultBuilder]: For program point L4729(line 4729) no Hoare annotation was computed. [2021-11-19 14:46:39,500 INFO L858 garLoopResultBuilder]: For program point L4729-5(line 4729) no Hoare annotation was computed. [2021-11-19 14:46:39,500 INFO L861 garLoopResultBuilder]: At program point aws_linked_list_node_prev_is_validENTRY(lines 4726 4730) the Hoare annotation is: true [2021-11-19 14:46:39,500 INFO L858 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2021-11-19 14:46:39,500 INFO L861 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 210 212) the Hoare annotation is: true [2021-11-19 14:46:39,501 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-11-19 14:46:39,501 INFO L858 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2021-11-19 14:46:39,501 INFO L858 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2021-11-19 14:46:39,501 INFO L861 garLoopResultBuilder]: At program point nondet_uint64_tENTRY(line 266) the Hoare annotation is: true [2021-11-19 14:46:39,501 INFO L858 garLoopResultBuilder]: For program point nondet_uint64_tFINAL(line 266) no Hoare annotation was computed. [2021-11-19 14:46:39,501 INFO L861 garLoopResultBuilder]: At program point L4923(line 4923) the Hoare annotation is: true [2021-11-19 14:46:39,501 INFO L861 garLoopResultBuilder]: At program point L4922(line 4922) the Hoare annotation is: true [2021-11-19 14:46:39,502 INFO L858 garLoopResultBuilder]: For program point L4923-1(line 4923) no Hoare annotation was computed. [2021-11-19 14:46:39,502 INFO L858 garLoopResultBuilder]: For program point aws_linked_list_insert_beforeFINAL(lines 4909 4924) no Hoare annotation was computed. [2021-11-19 14:46:39,502 INFO L861 garLoopResultBuilder]: At program point L4920-1(line 4920) the Hoare annotation is: true [2021-11-19 14:46:39,502 INFO L858 garLoopResultBuilder]: For program point L4921-2(line 4921) no Hoare annotation was computed. [2021-11-19 14:46:39,502 INFO L858 garLoopResultBuilder]: For program point L4920-2(line 4920) no Hoare annotation was computed. [2021-11-19 14:46:39,502 INFO L861 garLoopResultBuilder]: At program point L4921(line 4921) the Hoare annotation is: true [2021-11-19 14:46:39,502 INFO L861 garLoopResultBuilder]: At program point L4922-1(line 4922) the Hoare annotation is: true [2021-11-19 14:46:39,502 INFO L861 garLoopResultBuilder]: At program point L4920(line 4920) the Hoare annotation is: true [2021-11-19 14:46:39,503 INFO L861 garLoopResultBuilder]: At program point L4921-1(line 4921) the Hoare annotation is: true [2021-11-19 14:46:39,503 INFO L858 garLoopResultBuilder]: For program point L4922-2(line 4922) no Hoare annotation was computed. [2021-11-19 14:46:39,503 INFO L861 garLoopResultBuilder]: At program point L4912-1(line 4912) the Hoare annotation is: true [2021-11-19 14:46:39,503 INFO L858 garLoopResultBuilder]: For program point L4912-2(line 4912) no Hoare annotation was computed. [2021-11-19 14:46:39,503 INFO L861 garLoopResultBuilder]: At program point L4913(lines 4913 4915) the Hoare annotation is: true [2021-11-19 14:46:39,503 INFO L861 garLoopResultBuilder]: At program point L4912(line 4912) the Hoare annotation is: true [2021-11-19 14:46:39,503 INFO L858 garLoopResultBuilder]: For program point L4913-1(lines 4913 4915) no Hoare annotation was computed. [2021-11-19 14:46:39,504 INFO L861 garLoopResultBuilder]: At program point aws_linked_list_insert_beforeENTRY(lines 4909 4924) the Hoare annotation is: true [2021-11-19 14:46:39,504 INFO L858 garLoopResultBuilder]: For program point aws_linked_list_insert_beforeEXIT(lines 4909 4924) no Hoare annotation was computed. [2021-11-19 14:46:39,504 INFO L854 garLoopResultBuilder]: At program point L4990(line 4990) the Hoare annotation is: (and (not (= (_ bv0 64) |ULTIMATE.start_aws_linked_list_push_front_~list#1.base|)) (not (= |ULTIMATE.start_aws_linked_list_push_front_harness_~#list~0#1.base| (_ bv0 64)))) [2021-11-19 14:46:39,504 INFO L858 garLoopResultBuilder]: For program point L4994-1(line 4994) no Hoare annotation was computed. [2021-11-19 14:46:39,504 INFO L854 garLoopResultBuilder]: At program point L4990-1(line 4990) the Hoare annotation is: (= (_ bv0 8) |ULTIMATE.start_aws_linked_list_push_front_#t~ret402#1|) [2021-11-19 14:46:39,504 INFO L858 garLoopResultBuilder]: For program point L7389-1(line 7389) no Hoare annotation was computed. [2021-11-19 14:46:39,505 INFO L858 garLoopResultBuilder]: For program point L4990-2(line 4990) no Hoare annotation was computed. [2021-11-19 14:46:39,505 INFO L854 garLoopResultBuilder]: At program point L7389(line 7389) the Hoare annotation is: false [2021-11-19 14:46:39,505 INFO L858 garLoopResultBuilder]: For program point L6754(lines 6754 6778) no Hoare annotation was computed. [2021-11-19 14:46:39,505 INFO L854 garLoopResultBuilder]: At program point L4995(line 4995) the Hoare annotation is: false [2021-11-19 14:46:39,505 INFO L854 garLoopResultBuilder]: At program point L4995-1(line 4995) the Hoare annotation is: false [2021-11-19 14:46:39,505 INFO L854 garLoopResultBuilder]: At program point L4991(lines 4991 4993) the Hoare annotation is: false [2021-11-19 14:46:39,505 INFO L854 garLoopResultBuilder]: At program point L7390(line 7390) the Hoare annotation is: false [2021-11-19 14:46:39,506 INFO L858 garLoopResultBuilder]: For program point L4991-1(lines 4991 4993) no Hoare annotation was computed. [2021-11-19 14:46:39,506 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-19 14:46:39,506 INFO L858 garLoopResultBuilder]: For program point L4995-2(line 4995) no Hoare annotation was computed. [2021-11-19 14:46:39,506 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-19 14:46:39,506 INFO L854 garLoopResultBuilder]: At program point L7386(line 7386) the Hoare annotation is: false [2021-11-19 14:46:39,506 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-19 14:46:39,506 INFO L858 garLoopResultBuilder]: For program point L7390-1(line 7390) no Hoare annotation was computed. [2021-11-19 14:46:39,506 INFO L858 garLoopResultBuilder]: For program point L7386-2(line 7386) no Hoare annotation was computed. [2021-11-19 14:46:39,507 INFO L854 garLoopResultBuilder]: At program point L7386-1(line 7386) the Hoare annotation is: false [2021-11-19 14:46:39,507 INFO L858 garLoopResultBuilder]: For program point L7374(lines 7374 7391) no Hoare annotation was computed. [2021-11-19 14:46:39,509 INFO L858 garLoopResultBuilder]: For program point L6767-4(lines 6767 6774) no Hoare annotation was computed. [2021-11-19 14:46:39,509 INFO L854 garLoopResultBuilder]: At program point L6767-3(lines 6767 6774) the Hoare annotation is: (not (= |ULTIMATE.start_aws_linked_list_push_front_harness_~#list~0#1.base| (_ bv0 64))) [2021-11-19 14:46:39,509 INFO L858 garLoopResultBuilder]: For program point L6767-2(lines 6767 6774) no Hoare annotation was computed. [2021-11-19 14:46:39,510 INFO L858 garLoopResultBuilder]: For program point L6755-1(line 6755) no Hoare annotation was computed. [2021-11-19 14:46:39,510 INFO L858 garLoopResultBuilder]: For program point L4996-1(line 4996) no Hoare annotation was computed. [2021-11-19 14:46:39,510 INFO L854 garLoopResultBuilder]: At program point L6755(line 6755) the Hoare annotation is: (not (= |ULTIMATE.start_aws_linked_list_push_front_harness_~#list~0#1.base| (_ bv0 64))) [2021-11-19 14:46:39,511 INFO L854 garLoopResultBuilder]: At program point L4996(line 4996) the Hoare annotation is: false [2021-11-19 14:46:39,511 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-19 14:46:39,511 INFO L854 garLoopResultBuilder]: At program point L7387-1(line 7387) the Hoare annotation is: false [2021-11-19 14:46:39,511 INFO L854 garLoopResultBuilder]: At program point L7387(line 7387) the Hoare annotation is: false [2021-11-19 14:46:39,512 INFO L858 garLoopResultBuilder]: For program point L7387-2(line 7387) no Hoare annotation was computed. [2021-11-19 14:46:39,512 INFO L858 garLoopResultBuilder]: For program point L6756-1(line 6756) no Hoare annotation was computed. [2021-11-19 14:46:39,512 INFO L854 garLoopResultBuilder]: At program point L6756(line 6756) the Hoare annotation is: (not (= |ULTIMATE.start_aws_linked_list_push_front_harness_~#list~0#1.base| (_ bv0 64))) [2021-11-19 14:46:39,512 INFO L861 garLoopResultBuilder]: At program point L7392(line 7392) the Hoare annotation is: true [2021-11-19 14:46:39,512 INFO L858 garLoopResultBuilder]: For program point L7388-2(line 7388) no Hoare annotation was computed. [2021-11-19 14:46:39,513 INFO L854 garLoopResultBuilder]: At program point L7388-1(line 7388) the Hoare annotation is: false [2021-11-19 14:46:39,513 INFO L858 garLoopResultBuilder]: For program point L4989(lines 4989 4997) no Hoare annotation was computed. [2021-11-19 14:46:39,513 INFO L854 garLoopResultBuilder]: At program point L7388(line 7388) the Hoare annotation is: false [2021-11-19 14:46:39,515 INFO L854 garLoopResultBuilder]: At program point L4994(line 4994) the Hoare annotation is: false [2021-11-19 14:46:39,516 INFO L858 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-11-19 14:46:39,516 INFO L861 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 222 224) the Hoare annotation is: true [2021-11-19 14:46:39,516 INFO L858 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-11-19 14:46:39,516 INFO L858 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2021-11-19 14:46:39,517 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2021-11-19 14:46:39,517 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-19 14:46:39,517 INFO L858 garLoopResultBuilder]: For program point L4734(lines 4734 4738) no Hoare annotation was computed. [2021-11-19 14:46:39,517 INFO L858 garLoopResultBuilder]: For program point L4751(lines 4751 4761) no Hoare annotation was computed. [2021-11-19 14:46:39,518 INFO L854 garLoopResultBuilder]: At program point L4764(lines 4731 4765) the Hoare annotation is: (or (= |aws_linked_list_is_valid_aws_linked_list_is_valid_deep_#res#1| (_ bv0 8)) (and (= |aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.base| |aws_linked_list_is_valid_#in~list#1.base|) (= (_ bv0 64) |aws_linked_list_is_valid_#in~list#1.base|) (= |aws_linked_list_is_valid_~list#1.base| |aws_linked_list_is_valid_#in~list#1.base|))) [2021-11-19 14:46:39,518 INFO L858 garLoopResultBuilder]: For program point L4694(line 4694) no Hoare annotation was computed. [2021-11-19 14:46:39,518 INFO L858 garLoopResultBuilder]: For program point L4694-3(lines 4694 4695) no Hoare annotation was computed. [2021-11-19 14:46:39,518 INFO L858 garLoopResultBuilder]: For program point L4756-1(lines 4756 4761) no Hoare annotation was computed. [2021-11-19 14:46:39,518 INFO L858 garLoopResultBuilder]: For program point L4694-2(line 4694) no Hoare annotation was computed. [2021-11-19 14:46:39,519 INFO L854 garLoopResultBuilder]: At program point L4756(line 4756) the Hoare annotation is: (and (= |aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.base| |aws_linked_list_is_valid_#in~list#1.base|) (= (_ bv0 64) |aws_linked_list_is_valid_#in~list#1.base|) (= |aws_linked_list_is_valid_~list#1.base| |aws_linked_list_is_valid_#in~list#1.base|)) [2021-11-19 14:46:39,519 INFO L858 garLoopResultBuilder]: For program point L4694-8(lines 4694 4696) no Hoare annotation was computed. [2021-11-19 14:46:39,519 INFO L858 garLoopResultBuilder]: For program point L4694-5(lines 4694 4695) no Hoare annotation was computed. [2021-11-19 14:46:39,519 INFO L858 garLoopResultBuilder]: For program point L4694-6(lines 4694 4696) no Hoare annotation was computed. [2021-11-19 14:46:39,520 INFO L858 garLoopResultBuilder]: For program point L4694-11(lines 4694 4704) no Hoare annotation was computed. [2021-11-19 14:46:39,520 INFO L858 garLoopResultBuilder]: For program point L4694-9(lines 4694 4697) no Hoare annotation was computed. [2021-11-19 14:46:39,521 INFO L858 garLoopResultBuilder]: For program point aws_linked_list_is_validEXIT(lines 4691 4708) no Hoare annotation was computed. [2021-11-19 14:46:39,521 INFO L861 garLoopResultBuilder]: At program point aws_linked_list_is_validENTRY(lines 4691 4708) the Hoare annotation is: true [2021-11-19 14:46:39,521 INFO L858 garLoopResultBuilder]: For program point aws_linked_list_is_validFINAL(lines 4691 4708) no Hoare annotation was computed. [2021-11-19 14:46:39,521 INFO L858 garLoopResultBuilder]: For program point L4750-3(lines 4750 4763) no Hoare annotation was computed. [2021-11-19 14:46:39,522 INFO L854 garLoopResultBuilder]: At program point L4750-2(lines 4750 4763) the Hoare annotation is: (and (= |aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.base| |aws_linked_list_is_valid_#in~list#1.base|) (= (_ bv0 64) |aws_linked_list_is_valid_#in~list#1.base|) (= |aws_linked_list_is_valid_~list#1.base| |aws_linked_list_is_valid_#in~list#1.base|)) [2021-11-19 14:46:39,526 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-19 14:46:39,528 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 14:46:39,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 02:46:39 BoogieIcfgContainer [2021-11-19 14:46:39,551 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 14:46:39,552 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 14:46:39,552 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 14:46:39,553 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 14:46:39,553 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:46:32" (3/4) ... [2021-11-19 14:46:39,557 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-19 14:46:39,567 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_linked_list_node_next_is_valid [2021-11-19 14:46:39,568 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2021-11-19 14:46:39,568 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_linked_list_node_prev_is_valid [2021-11-19 14:46:39,571 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_linked_list_insert_before [2021-11-19 14:46:39,571 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2021-11-19 14:46:39,571 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-11-19 14:46:39,571 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_linked_list_is_valid [2021-11-19 14:46:39,590 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2021-11-19 14:46:39,591 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-11-19 14:46:39,592 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-19 14:46:39,592 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-19 14:46:39,635 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \result == 0bv8 || ((list == list && 0bv64 == list) && list == list) [2021-11-19 14:46:39,705 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/witness.graphml [2021-11-19 14:46:39,705 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 14:46:39,706 INFO L158 Benchmark]: Toolchain (without parser) took 12766.80ms. Allocated memory was 58.7MB in the beginning and 155.2MB in the end (delta: 96.5MB). Free memory was 31.8MB in the beginning and 97.3MB in the end (delta: -65.5MB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB. [2021-11-19 14:46:39,707 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 58.7MB. Free memory is still 39.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:46:39,708 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3681.56ms. Allocated memory was 58.7MB in the beginning and 96.5MB in the end (delta: 37.7MB). Free memory was 31.7MB in the beginning and 49.9MB in the end (delta: -18.2MB). Peak memory consumption was 41.6MB. Max. memory is 16.1GB. [2021-11-19 14:46:39,708 INFO L158 Benchmark]: Boogie Procedure Inliner took 277.85ms. Allocated memory is still 96.5MB. Free memory was 49.9MB in the beginning and 44.0MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-19 14:46:39,709 INFO L158 Benchmark]: Boogie Preprocessor took 125.11ms. Allocated memory is still 96.5MB. Free memory was 44.0MB in the beginning and 40.3MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-19 14:46:39,709 INFO L158 Benchmark]: RCFGBuilder took 1249.16ms. Allocated memory was 96.5MB in the beginning and 123.7MB in the end (delta: 27.3MB). Free memory was 40.3MB in the beginning and 67.7MB in the end (delta: -27.4MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2021-11-19 14:46:39,710 INFO L158 Benchmark]: TraceAbstraction took 7271.65ms. Allocated memory was 123.7MB in the beginning and 155.2MB in the end (delta: 31.5MB). Free memory was 66.9MB in the beginning and 105.7MB in the end (delta: -38.8MB). Peak memory consumption was 53.5MB. Max. memory is 16.1GB. [2021-11-19 14:46:39,711 INFO L158 Benchmark]: Witness Printer took 153.06ms. Allocated memory is still 155.2MB. Free memory was 105.7MB in the beginning and 97.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 14:46:39,714 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 58.7MB. Free memory is still 39.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3681.56ms. Allocated memory was 58.7MB in the beginning and 96.5MB in the end (delta: 37.7MB). Free memory was 31.7MB in the beginning and 49.9MB in the end (delta: -18.2MB). Peak memory consumption was 41.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 277.85ms. Allocated memory is still 96.5MB. Free memory was 49.9MB in the beginning and 44.0MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 125.11ms. Allocated memory is still 96.5MB. Free memory was 44.0MB in the beginning and 40.3MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1249.16ms. Allocated memory was 96.5MB in the beginning and 123.7MB in the end (delta: 27.3MB). Free memory was 40.3MB in the beginning and 67.7MB in the end (delta: -27.4MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. * TraceAbstraction took 7271.65ms. Allocated memory was 123.7MB in the beginning and 155.2MB in the end (delta: 31.5MB). Free memory was 66.9MB in the beginning and 105.7MB in the end (delta: -38.8MB). Peak memory consumption was 53.5MB. Max. memory is 16.1GB. * Witness Printer took 153.06ms. Allocated memory is still 155.2MB. Free memory was 105.7MB in the beginning and 97.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 104 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.1s, OverallIterations: 5, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 63 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 63 mSDsluCounter, 2121 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1550 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 155 IncrementalHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 571 mSDtfsCounter, 155 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 749 GetRequests, 722 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105occurred in iteration=4, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 39 LocationsWithAnnotation, 235 PreInvPairs, 245 NumberOfFragments, 89 HoareAnnotationTreeSize, 235 FomulaSimplifications, 23 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 39 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 376 NumberOfCodeBlocks, 376 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 742 ConstructedInterpolants, 0 QuantifiedInterpolants, 965 SizeOfPredicates, 9 NumberOfNonLiveVariables, 1086 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 452/470 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 4750]: Loop Invariant Derived loop invariant: (list == list && 0bv64 == list) && list == list - InvariantResult [Line: 4731]: Loop Invariant Derived loop invariant: \result == 0bv8 || ((list == list && 0bv64 == list) && list == list) - InvariantResult [Line: 7392]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6767]: Loop Invariant Derived loop invariant: !(list == 0bv64) RESULT: Ultimate proved your program to be correct! [2021-11-19 14:46:39,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_655f1498-9fe7-4c66-a043-aeb332d0c9b8/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE