./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_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_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/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_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/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_bad50f08-b6f2-4db8-a880-bea74532e67f/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 376fa3967c5a16dbeae94f1517cf176a2f53d2660c6b5c3d2eeb4fd9f827337c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 15:48:29,644 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 15:48:29,647 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 15:48:29,695 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 15:48:29,695 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 15:48:29,697 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 15:48:29,699 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 15:48:29,701 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 15:48:29,703 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 15:48:29,705 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 15:48:29,706 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 15:48:29,707 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 15:48:29,708 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 15:48:29,709 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 15:48:29,711 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 15:48:29,713 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 15:48:29,714 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 15:48:29,715 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 15:48:29,717 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 15:48:29,719 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 15:48:29,722 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 15:48:29,723 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 15:48:29,725 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 15:48:29,726 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 15:48:29,729 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 15:48:29,730 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 15:48:29,730 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 15:48:29,731 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 15:48:29,732 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 15:48:29,733 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 15:48:29,734 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 15:48:29,735 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 15:48:29,736 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 15:48:29,736 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 15:48:29,738 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 15:48:29,738 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 15:48:29,739 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 15:48:29,739 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 15:48:29,740 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 15:48:29,741 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 15:48:29,742 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 15:48:29,743 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 15:48:29,767 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 15:48:29,768 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 15:48:29,769 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 15:48:29,769 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 15:48:29,769 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 15:48:29,769 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 15:48:29,770 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 15:48:29,770 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 15:48:29,770 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 15:48:29,770 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 15:48:29,770 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 15:48:29,770 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 15:48:29,770 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 15:48:29,771 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 15:48:29,771 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 15:48:29,771 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 15:48:29,772 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 15:48:29,772 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 15:48:29,772 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 15:48:29,772 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 15:48:29,772 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 15:48:29,773 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 15:48:29,773 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 15:48:29,773 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 15:48:29,773 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 15:48:29,773 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 15:48:29,774 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 15:48:29,774 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 15:48:29,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:48:29,774 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 15:48:29,774 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 15:48:29,775 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 15:48:29,779 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 15:48:29,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 15:48:29,780 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 15:48:29,780 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 15:48:29,780 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 15:48:29,780 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_bad50f08-b6f2-4db8-a880-bea74532e67f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 376fa3967c5a16dbeae94f1517cf176a2f53d2660c6b5c3d2eeb4fd9f827337c [2021-11-19 15:48:30,093 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 15:48:30,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 15:48:30,132 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 15:48:30,134 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 15:48:30,135 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 15:48:30,136 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i [2021-11-19 15:48:30,215 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/data/1a80cb509/885fd195f25f4a25ac148b967c657195/FLAGacd907a72 [2021-11-19 15:48:31,127 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 15:48:31,128 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i [2021-11-19 15:48:31,183 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/data/1a80cb509/885fd195f25f4a25ac148b967c657195/FLAGacd907a72 [2021-11-19 15:48:31,570 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/data/1a80cb509/885fd195f25f4a25ac148b967c657195 [2021-11-19 15:48:31,573 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 15:48:31,574 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 15:48:31,579 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 15:48:31,579 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 15:48:31,582 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 15:48:31,583 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:48:31" (1/1) ... [2021-11-19 15:48:31,584 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@109cab9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:48:31, skipping insertion in model container [2021-11-19 15:48:31,585 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:48:31" (1/1) ... [2021-11-19 15:48:31,593 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 15:48:31,736 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:48:32,092 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_bad50f08-b6f2-4db8-a880-bea74532e67f/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i[4492,4505] [2021-11-19 15:48:32,099 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_bad50f08-b6f2-4db8-a880-bea74532e67f/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i[4552,4565] [2021-11-19 15:48:32,125 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 15:48:32,131 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 15:48:33,113 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:33,121 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:33,125 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:33,127 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:33,129 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:33,149 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:33,152 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:33,154 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:33,154 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:33,579 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 15:48:33,581 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 15:48:33,582 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 15:48:33,583 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 15:48:33,584 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 15:48:33,585 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 15:48:33,586 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 15:48:33,586 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 15:48:33,587 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 15:48:33,588 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 15:48:33,765 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 15:48:33,869 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:33,870 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:34,037 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:48:34,096 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 15:48:34,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1ef49bc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:48:34, skipping insertion in model container [2021-11-19 15:48:34,097 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 15:48:34,098 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 15:48:34,100 INFO L158 Benchmark]: Toolchain (without parser) took 2524.39ms. Allocated memory was 117.4MB in the beginning and 155.2MB in the end (delta: 37.7MB). Free memory was 72.3MB in the beginning and 111.8MB in the end (delta: -39.5MB). Peak memory consumption was 34.9MB. Max. memory is 16.1GB. [2021-11-19 15:48:34,101 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 91.2MB in the end (delta: 28.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 15:48:34,102 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2518.44ms. Allocated memory was 117.4MB in the beginning and 155.2MB in the end (delta: 37.7MB). Free memory was 72.2MB in the beginning and 111.8MB in the end (delta: -39.6MB). Peak memory consumption was 34.9MB. Max. memory is 16.1GB. [2021-11-19 15:48:34,104 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 91.2MB in the end (delta: 28.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2518.44ms. Allocated memory was 117.4MB in the beginning and 155.2MB in the end (delta: 37.7MB). Free memory was 72.2MB in the beginning and 111.8MB in the end (delta: -39.6MB). Peak memory consumption was 34.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6990]: 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_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/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_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/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_bad50f08-b6f2-4db8-a880-bea74532e67f/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 376fa3967c5a16dbeae94f1517cf176a2f53d2660c6b5c3d2eeb4fd9f827337c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 15:48:36,397 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 15:48:36,401 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 15:48:36,457 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 15:48:36,457 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 15:48:36,462 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 15:48:36,464 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 15:48:36,468 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 15:48:36,471 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 15:48:36,479 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 15:48:36,480 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 15:48:36,482 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 15:48:36,482 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 15:48:36,485 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 15:48:36,487 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 15:48:36,493 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 15:48:36,495 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 15:48:36,496 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 15:48:36,498 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 15:48:36,510 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 15:48:36,512 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 15:48:36,514 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 15:48:36,516 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 15:48:36,519 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 15:48:36,528 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 15:48:36,529 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 15:48:36,529 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 15:48:36,531 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 15:48:36,532 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 15:48:36,533 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 15:48:36,533 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 15:48:36,534 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 15:48:36,536 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 15:48:36,537 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 15:48:36,538 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 15:48:36,539 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 15:48:36,540 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 15:48:36,540 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 15:48:36,540 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 15:48:36,542 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 15:48:36,543 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 15:48:36,548 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 15:48:36,594 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 15:48:36,594 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 15:48:36,595 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 15:48:36,596 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 15:48:36,596 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 15:48:36,596 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 15:48:36,596 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 15:48:36,596 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 15:48:36,597 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 15:48:36,597 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 15:48:36,599 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 15:48:36,600 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 15:48:36,600 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 15:48:36,600 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 15:48:36,600 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 15:48:36,601 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 15:48:36,601 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 15:48:36,601 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 15:48:36,601 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 15:48:36,601 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 15:48:36,602 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 15:48:36,602 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 15:48:36,602 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 15:48:36,602 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 15:48:36,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:48:36,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 15:48:36,603 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 15:48:36,603 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 15:48:36,604 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 15:48:36,604 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 15:48:36,604 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 15:48:36,604 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 15:48:36,604 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 15:48:36,605 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_bad50f08-b6f2-4db8-a880-bea74532e67f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 376fa3967c5a16dbeae94f1517cf176a2f53d2660c6b5c3d2eeb4fd9f827337c [2021-11-19 15:48:36,967 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 15:48:36,991 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 15:48:36,994 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 15:48:36,995 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 15:48:36,996 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 15:48:36,997 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i [2021-11-19 15:48:37,068 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/data/e42601c22/2f8ff49847d24faebabdc1652cbb7727/FLAG8b46e7044 [2021-11-19 15:48:38,095 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 15:48:38,098 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i [2021-11-19 15:48:38,147 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/data/e42601c22/2f8ff49847d24faebabdc1652cbb7727/FLAG8b46e7044 [2021-11-19 15:48:38,485 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/data/e42601c22/2f8ff49847d24faebabdc1652cbb7727 [2021-11-19 15:48:38,488 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 15:48:38,490 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 15:48:38,509 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 15:48:38,509 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 15:48:38,512 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 15:48:38,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:48:38" (1/1) ... [2021-11-19 15:48:38,515 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ede4703 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:48:38, skipping insertion in model container [2021-11-19 15:48:38,515 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:48:38" (1/1) ... [2021-11-19 15:48:38,523 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 15:48:38,662 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:48:39,001 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_bad50f08-b6f2-4db8-a880-bea74532e67f/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i[4492,4505] [2021-11-19 15:48:39,011 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_bad50f08-b6f2-4db8-a880-bea74532e67f/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i[4552,4565] [2021-11-19 15:48:39,045 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 15:48:39,053 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 15:48:40,160 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:40,161 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:40,162 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:40,163 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:40,164 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:40,181 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:40,182 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:40,184 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:40,185 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:40,772 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 15:48:40,773 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 15:48:40,774 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 15:48:40,776 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 15:48:40,780 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 15:48:40,783 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 15:48:40,785 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 15:48:40,787 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 15:48:40,789 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 15:48:40,791 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 15:48:41,045 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 15:48:41,197 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:41,199 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:41,322 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:48:41,387 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 15:48:41,447 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:48:41,451 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_bad50f08-b6f2-4db8-a880-bea74532e67f/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i[4492,4505] [2021-11-19 15:48:41,451 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_bad50f08-b6f2-4db8-a880-bea74532e67f/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i[4552,4565] [2021-11-19 15:48:41,453 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 15:48:41,453 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 15:48:41,489 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:41,490 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:41,490 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:41,491 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:41,491 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:41,499 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:41,499 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:41,500 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:41,501 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:41,540 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 15:48:41,541 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 15:48:41,541 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 15:48:41,542 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 15:48:41,556 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 15:48:41,556 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 15:48:41,557 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 15:48:41,557 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 15:48:41,558 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 15:48:41,558 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 15:48:41,578 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 15:48:41,631 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:41,632 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:41,657 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:48:41,684 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 15:48:41,714 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_bad50f08-b6f2-4db8-a880-bea74532e67f/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i[4492,4505] [2021-11-19 15:48:41,715 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_bad50f08-b6f2-4db8-a880-bea74532e67f/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i[4552,4565] [2021-11-19 15:48:41,716 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 15:48:41,717 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 15:48:41,745 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:41,745 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:41,746 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:41,746 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:41,747 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:41,752 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:41,752 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:41,753 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:41,753 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:41,782 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 15:48:41,783 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 15:48:41,784 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 15:48:41,784 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 15:48:41,785 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 15:48:41,786 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 15:48:41,786 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 15:48:41,786 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 15:48:41,787 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 15:48:41,787 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 15:48:41,805 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 15:48:41,874 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:41,874 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 15:48:41,896 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:48:42,385 INFO L208 MainTranslator]: Completed translation [2021-11-19 15:48:42,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:48:42 WrapperNode [2021-11-19 15:48:42,385 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 15:48:42,387 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 15:48:42,387 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 15:48:42,388 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 15:48:42,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:48:42" (1/1) ... [2021-11-19 15:48:42,520 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:48:42" (1/1) ... [2021-11-19 15:48:42,624 INFO L137 Inliner]: procedures = 713, calls = 2652, calls flagged for inlining = 60, calls inlined = 6, statements flattened = 870 [2021-11-19 15:48:42,625 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 15:48:42,626 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 15:48:42,626 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 15:48:42,626 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 15:48:42,634 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:48:42" (1/1) ... [2021-11-19 15:48:42,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:48:42" (1/1) ... [2021-11-19 15:48:42,645 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:48:42" (1/1) ... [2021-11-19 15:48:42,648 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:48:42" (1/1) ... [2021-11-19 15:48:42,697 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:48:42" (1/1) ... [2021-11-19 15:48:42,701 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:48:42" (1/1) ... [2021-11-19 15:48:42,711 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:48:42" (1/1) ... [2021-11-19 15:48:42,742 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 15:48:42,743 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 15:48:42,743 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 15:48:42,743 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 15:48:42,744 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:48:42" (1/1) ... [2021-11-19 15:48:42,751 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:48:42,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:48:42,782 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 15:48:42,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 15:48:42,849 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2021-11-19 15:48:42,849 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2021-11-19 15:48:42,850 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-19 15:48:42,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 15:48:42,850 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-19 15:48:42,850 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-19 15:48:42,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 15:48:42,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 15:48:42,852 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_bounded [2021-11-19 15:48:42,852 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_bounded [2021-11-19 15:48:42,852 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-19 15:48:42,853 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-19 15:48:42,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 15:48:42,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 15:48:42,853 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2021-11-19 15:48:42,854 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2021-11-19 15:48:42,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 15:48:42,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 15:48:42,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 15:48:42,854 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-19 15:48:42,854 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-19 15:48:42,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 15:48:42,855 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-11-19 15:48:42,855 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-11-19 15:48:42,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 15:48:42,855 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-19 15:48:42,856 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-19 15:48:42,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 15:48:42,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 15:48:42,856 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2021-11-19 15:48:42,856 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2021-11-19 15:48:42,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 15:48:42,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 15:48:42,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 15:48:42,857 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-19 15:48:42,857 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-19 15:48:42,858 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_cursor_has_allocated_buffer_member [2021-11-19 15:48:42,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_cursor_has_allocated_buffer_member [2021-11-19 15:48:43,211 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 15:48:43,213 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 15:48:47,564 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 15:48:47,577 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 15:48:47,578 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-19 15:48:47,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:48:47 BoogieIcfgContainer [2021-11-19 15:48:47,581 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 15:48:47,582 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 15:48:47,583 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 15:48:47,592 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 15:48:47,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 03:48:38" (1/3) ... [2021-11-19 15:48:47,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2927be83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:48:47, skipping insertion in model container [2021-11-19 15:48:47,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:48:42" (2/3) ... [2021-11-19 15:48:47,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2927be83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:48:47, skipping insertion in model container [2021-11-19 15:48:47,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:48:47" (3/3) ... [2021-11-19 15:48:47,598 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_eq_harness.i [2021-11-19 15:48:47,604 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 15:48:47,604 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 15:48:47,673 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 15:48:47,680 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 15:48:47,680 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 15:48:47,700 INFO L276 IsEmpty]: Start isEmpty. Operand has 134 states, 81 states have (on average 1.2345679012345678) internal successors, (100), 82 states have internal predecessors, (100), 40 states have call successors, (40), 11 states have call predecessors, (40), 11 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2021-11-19 15:48:47,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-19 15:48:47,712 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:48:47,715 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:48:47,715 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:48:47,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:48:47,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1889081573, now seen corresponding path program 1 times [2021-11-19 15:48:47,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:48:47,738 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1518304550] [2021-11-19 15:48:47,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:48:47,739 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:48:47,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:48:47,742 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:48:47,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 15:48:48,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:48:48,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 1511 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 15:48:48,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:48:49,190 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2021-11-19 15:48:49,190 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:48:49,548 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2021-11-19 15:48:49,549 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:48:49,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1518304550] [2021-11-19 15:48:49,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1518304550] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 15:48:49,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 15:48:49,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-11-19 15:48:49,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919293832] [2021-11-19 15:48:49,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:48:49,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 15:48:49,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:48:49,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 15:48:49,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 15:48:49,588 INFO L87 Difference]: Start difference. First operand has 134 states, 81 states have (on average 1.2345679012345678) internal successors, (100), 82 states have internal predecessors, (100), 40 states have call successors, (40), 11 states have call predecessors, (40), 11 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-19 15:48:50,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:48:50,051 INFO L93 Difference]: Finished difference Result 267 states and 391 transitions. [2021-11-19 15:48:50,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 15:48:50,055 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 102 [2021-11-19 15:48:50,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:48:50,069 INFO L225 Difference]: With dead ends: 267 [2021-11-19 15:48:50,073 INFO L226 Difference]: Without dead ends: 131 [2021-11-19 15:48:50,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 15:48:50,083 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 49 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-19 15:48:50,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 558 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-19 15:48:50,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-11-19 15:48:50,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2021-11-19 15:48:50,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 78 states have (on average 1.205128205128205) internal successors, (94), 80 states have internal predecessors, (94), 40 states have call successors, (40), 11 states have call predecessors, (40), 12 states have return successors, (45), 39 states have call predecessors, (45), 39 states have call successors, (45) [2021-11-19 15:48:50,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 179 transitions. [2021-11-19 15:48:50,160 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 179 transitions. Word has length 102 [2021-11-19 15:48:50,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:48:50,161 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 179 transitions. [2021-11-19 15:48:50,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-19 15:48:50,161 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 179 transitions. [2021-11-19 15:48:50,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-19 15:48:50,173 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:48:50,173 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:48:50,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 15:48:50,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:48:50,388 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:48:50,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:48:50,389 INFO L85 PathProgramCache]: Analyzing trace with hash 892843210, now seen corresponding path program 1 times [2021-11-19 15:48:50,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:48:50,392 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [203724786] [2021-11-19 15:48:50,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:48:50,392 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:48:50,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:48:50,394 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:48:50,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 15:48:51,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:48:51,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 1515 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 15:48:51,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:48:51,816 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-11-19 15:48:51,816 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:48:52,182 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2021-11-19 15:48:52,182 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:48:52,182 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [203724786] [2021-11-19 15:48:52,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [203724786] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 15:48:52,183 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 15:48:52,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 6 [2021-11-19 15:48:52,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317905523] [2021-11-19 15:48:52,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:48:52,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 15:48:52,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:48:52,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 15:48:52,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-19 15:48:52,186 INFO L87 Difference]: Start difference. First operand 131 states and 179 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2021-11-19 15:48:52,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:48:52,886 INFO L93 Difference]: Finished difference Result 212 states and 290 transitions. [2021-11-19 15:48:52,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 15:48:52,889 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 104 [2021-11-19 15:48:52,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:48:52,892 INFO L225 Difference]: With dead ends: 212 [2021-11-19 15:48:52,892 INFO L226 Difference]: Without dead ends: 131 [2021-11-19 15:48:52,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-19 15:48:52,911 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 67 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 662 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-19 15:48:52,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 662 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-19 15:48:52,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-11-19 15:48:52,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2021-11-19 15:48:52,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 78 states have (on average 1.205128205128205) internal successors, (94), 80 states have internal predecessors, (94), 40 states have call successors, (40), 11 states have call predecessors, (40), 12 states have return successors, (43), 39 states have call predecessors, (43), 39 states have call successors, (43) [2021-11-19 15:48:52,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 177 transitions. [2021-11-19 15:48:52,946 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 177 transitions. Word has length 104 [2021-11-19 15:48:52,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:48:52,947 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 177 transitions. [2021-11-19 15:48:52,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2021-11-19 15:48:52,959 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 177 transitions. [2021-11-19 15:48:52,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-19 15:48:52,961 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:48:52,961 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:48:52,993 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-19 15:48:53,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:48:53,162 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:48:53,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:48:53,163 INFO L85 PathProgramCache]: Analyzing trace with hash 571694548, now seen corresponding path program 2 times [2021-11-19 15:48:53,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:48:53,165 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [774413962] [2021-11-19 15:48:53,166 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 15:48:53,166 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:48:53,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:48:53,167 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:48:53,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 15:48:53,822 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-19 15:48:53,823 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 15:48:53,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 1314 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 15:48:53,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:48:54,080 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2021-11-19 15:48:54,080 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:48:54,436 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2021-11-19 15:48:54,436 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:48:54,436 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [774413962] [2021-11-19 15:48:54,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [774413962] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:48:54,436 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:48:54,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 12 [2021-11-19 15:48:54,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562482069] [2021-11-19 15:48:54,437 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:48:54,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 15:48:54,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:48:54,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 15:48:54,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-19 15:48:54,439 INFO L87 Difference]: Start difference. First operand 131 states and 177 transitions. Second operand has 12 states, 10 states have (on average 4.6) internal successors, (46), 8 states have internal predecessors, (46), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 1 states have call successors, (18) [2021-11-19 15:48:54,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:48:54,596 INFO L93 Difference]: Finished difference Result 143 states and 196 transitions. [2021-11-19 15:48:54,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 15:48:54,597 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 4.6) internal successors, (46), 8 states have internal predecessors, (46), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 1 states have call successors, (18) Word has length 108 [2021-11-19 15:48:54,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:48:54,600 INFO L225 Difference]: With dead ends: 143 [2021-11-19 15:48:54,600 INFO L226 Difference]: Without dead ends: 141 [2021-11-19 15:48:54,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-11-19 15:48:54,602 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 19 mSDsluCounter, 1343 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 1516 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:48:54,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 1516 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:48:54,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-11-19 15:48:54,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 140. [2021-11-19 15:48:54,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 84 states have (on average 1.1904761904761905) internal successors, (100), 87 states have internal predecessors, (100), 41 states have call successors, (41), 12 states have call predecessors, (41), 14 states have return successors, (52), 40 states have call predecessors, (52), 40 states have call successors, (52) [2021-11-19 15:48:54,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 193 transitions. [2021-11-19 15:48:54,633 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 193 transitions. Word has length 108 [2021-11-19 15:48:54,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:48:54,634 INFO L470 AbstractCegarLoop]: Abstraction has 140 states and 193 transitions. [2021-11-19 15:48:54,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 4.6) internal successors, (46), 8 states have internal predecessors, (46), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 1 states have call successors, (18) [2021-11-19 15:48:54,635 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 193 transitions. [2021-11-19 15:48:54,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-19 15:48:54,638 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:48:54,639 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:48:54,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 15:48:54,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:48:54,848 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:48:54,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:48:54,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1101472484, now seen corresponding path program 1 times [2021-11-19 15:48:54,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:48:54,850 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [771817496] [2021-11-19 15:48:54,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:48:54,850 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:48:54,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:48:54,851 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:48:54,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 15:48:55,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:48:55,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 1532 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 15:48:55,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:48:56,294 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-19 15:48:56,295 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:48:56,655 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2021-11-19 15:48:56,655 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:48:56,655 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [771817496] [2021-11-19 15:48:56,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [771817496] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 15:48:56,655 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 15:48:56,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 6 [2021-11-19 15:48:56,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158090417] [2021-11-19 15:48:56,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:48:56,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 15:48:56,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:48:56,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 15:48:56,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-19 15:48:56,657 INFO L87 Difference]: Start difference. First operand 140 states and 193 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2021-11-19 15:48:57,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:48:57,200 INFO L93 Difference]: Finished difference Result 245 states and 337 transitions. [2021-11-19 15:48:57,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 15:48:57,201 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 112 [2021-11-19 15:48:57,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:48:57,204 INFO L225 Difference]: With dead ends: 245 [2021-11-19 15:48:57,204 INFO L226 Difference]: Without dead ends: 137 [2021-11-19 15:48:57,205 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-19 15:48:57,207 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 66 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 15:48:57,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 678 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-19 15:48:57,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-11-19 15:48:57,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2021-11-19 15:48:57,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 82 states have (on average 1.1829268292682926) internal successors, (97), 84 states have internal predecessors, (97), 41 states have call successors, (41), 12 states have call predecessors, (41), 13 states have return successors, (48), 40 states have call predecessors, (48), 40 states have call successors, (48) [2021-11-19 15:48:57,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 186 transitions. [2021-11-19 15:48:57,228 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 186 transitions. Word has length 112 [2021-11-19 15:48:57,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:48:57,228 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 186 transitions. [2021-11-19 15:48:57,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2021-11-19 15:48:57,229 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 186 transitions. [2021-11-19 15:48:57,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-19 15:48:57,231 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:48:57,231 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:48:57,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 15:48:57,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:48:57,455 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:48:57,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:48:57,456 INFO L85 PathProgramCache]: Analyzing trace with hash 952153793, now seen corresponding path program 1 times [2021-11-19 15:48:57,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:48:57,458 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1228767091] [2021-11-19 15:48:57,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:48:57,458 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:48:57,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:48:57,459 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:48:57,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 15:48:58,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:48:58,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 1536 conjuncts, 37 conjunts are in the unsatisfiable core [2021-11-19 15:48:58,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:49:01,338 INFO L354 Elim1Store]: treesize reduction 64, result has 1.5 percent of original size [2021-11-19 15:49:01,338 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 28 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 197 treesize of output 69 [2021-11-19 15:49:01,852 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 57 proven. 16 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-19 15:49:01,852 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:49:13,735 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 17 proven. 12 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-11-19 15:49:13,735 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:49:13,736 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1228767091] [2021-11-19 15:49:13,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1228767091] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:49:13,736 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [632405] [2021-11-19 15:49:13,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:49:13,736 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 15:49:13,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 15:49:13,741 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 15:49:13,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-11-19 15:49:16,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:49:16,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 1536 conjuncts, 37 conjunts are in the unsatisfiable core [2021-11-19 15:49:16,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:49:16,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,809 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:49:16,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,818 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:49:16,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,825 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:49:16,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,838 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:49:16,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,853 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:49:16,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,867 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:49:16,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:16,874 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:49:16,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:49:17,016 INFO L354 Elim1Store]: treesize reduction 262, result has 21.3 percent of original size [2021-11-19 15:49:17,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 54 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 545 treesize of output 261 [2021-11-19 15:49:19,622 INFO L354 Elim1Store]: treesize reduction 64, result has 1.5 percent of original size [2021-11-19 15:49:19,622 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 28 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 197 treesize of output 69 [2021-11-19 15:49:19,949 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 57 proven. 16 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-19 15:49:19,949 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:49:27,125 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 17 proven. 12 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-11-19 15:49:27,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [632405] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:49:27,125 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235983038] [2021-11-19 15:49:27,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:49:27,126 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:49:27,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:49:27,127 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 15:49:27,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-19 15:49:28,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:49:28,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 1536 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-19 15:49:28,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:49:32,293 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 62 proven. 10 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-11-19 15:49:32,293 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:49:36,052 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 18 proven. 12 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2021-11-19 15:49:36,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1235983038] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:49:36,053 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-19 15:49:36,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 12, 17, 12, 13, 9] total 37 [2021-11-19 15:49:36,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477852865] [2021-11-19 15:49:36,054 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-19 15:49:36,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-11-19 15:49:36,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:49:36,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-11-19 15:49:36,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=1183, Unknown=1, NotChecked=0, Total=1332 [2021-11-19 15:49:36,058 INFO L87 Difference]: Start difference. First operand 137 states and 186 transitions. Second operand has 37 states, 32 states have (on average 4.4375) internal successors, (142), 36 states have internal predecessors, (142), 19 states have call successors, (62), 4 states have call predecessors, (62), 11 states have return successors, (62), 14 states have call predecessors, (62), 19 states have call successors, (62) [2021-11-19 15:49:38,221 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:49:40,228 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:49:42,235 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:49:44,242 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:49:46,249 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:49:48,256 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:50:37,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:50:37,723 INFO L93 Difference]: Finished difference Result 535 states and 803 transitions. [2021-11-19 15:50:37,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-11-19 15:50:37,725 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 32 states have (on average 4.4375) internal successors, (142), 36 states have internal predecessors, (142), 19 states have call successors, (62), 4 states have call predecessors, (62), 11 states have return successors, (62), 14 states have call predecessors, (62), 19 states have call successors, (62) Word has length 114 [2021-11-19 15:50:37,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:50:37,734 INFO L225 Difference]: With dead ends: 535 [2021-11-19 15:50:37,734 INFO L226 Difference]: Without dead ends: 461 [2021-11-19 15:50:37,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 717 GetRequests, 632 SyntacticMatches, 23 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1317 ImplicationChecksByTransitivity, 34.7s TimeCoverageRelationStatistics Valid=440, Invalid=3591, Unknown=1, NotChecked=0, Total=4032 [2021-11-19 15:50:37,739 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 491 mSDsluCounter, 2460 mSDsCounter, 0 mSdLazyCounter, 3887 mSolverCounterSat, 513 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 2717 SdHoareTripleChecker+Invalid, 5733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 513 IncrementalHoareTripleChecker+Valid, 3887 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 1327 IncrementalHoareTripleChecker+Unchecked, 50.8s IncrementalHoareTripleChecker+Time [2021-11-19 15:50:37,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [533 Valid, 2717 Invalid, 5733 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [513 Valid, 3887 Invalid, 6 Unknown, 1327 Unchecked, 50.8s Time] [2021-11-19 15:50:37,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2021-11-19 15:50:37,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 205. [2021-11-19 15:50:37,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 122 states have (on average 1.1639344262295082) internal successors, (142), 129 states have internal predecessors, (142), 60 states have call successors, (60), 17 states have call predecessors, (60), 22 states have return successors, (78), 58 states have call predecessors, (78), 59 states have call successors, (78) [2021-11-19 15:50:37,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 280 transitions. [2021-11-19 15:50:37,835 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 280 transitions. Word has length 114 [2021-11-19 15:50:37,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:50:37,836 INFO L470 AbstractCegarLoop]: Abstraction has 205 states and 280 transitions. [2021-11-19 15:50:37,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 32 states have (on average 4.4375) internal successors, (142), 36 states have internal predecessors, (142), 19 states have call successors, (62), 4 states have call predecessors, (62), 11 states have return successors, (62), 14 states have call predecessors, (62), 19 states have call successors, (62) [2021-11-19 15:50:37,836 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 280 transitions. [2021-11-19 15:50:37,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-19 15:50:37,840 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:50:37,840 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:50:37,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 15:50:38,063 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2021-11-19 15:50:38,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-19 15:50:38,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:50:38,456 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:50:38,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:50:38,456 INFO L85 PathProgramCache]: Analyzing trace with hash 553275721, now seen corresponding path program 1 times [2021-11-19 15:50:38,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:50:38,459 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1666991784] [2021-11-19 15:50:38,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:50:38,459 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:50:38,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:50:38,460 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:50:38,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 15:50:39,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:50:39,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 1561 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-19 15:50:39,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:50:39,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 15:50:39,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 15:50:40,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 45 [2021-11-19 15:50:40,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 41 [2021-11-19 15:50:40,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2021-11-19 15:50:40,535 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2021-11-19 15:50:40,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2021-11-19 15:50:40,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-19 15:50:41,166 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 76 proven. 8 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2021-11-19 15:50:41,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:50:42,665 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 32 [2021-11-19 15:50:42,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:50:42,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:50:42,797 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2021-11-19 15:50:42,797 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:50:42,797 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1666991784] [2021-11-19 15:50:42,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1666991784] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:50:42,798 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [43352563] [2021-11-19 15:50:42,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:50:42,798 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 15:50:42,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 15:50:42,799 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 15:50:42,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-11-19 15:50:43,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:50:43,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 1561 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 15:50:43,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:50:44,277 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-11-19 15:50:44,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:50:44,788 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 13 proven. 18 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2021-11-19 15:50:44,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [43352563] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 15:50:44,788 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-19 15:50:44,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [13, 11, 9] total 24 [2021-11-19 15:50:44,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541638762] [2021-11-19 15:50:44,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:50:44,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 15:50:44,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:50:44,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 15:50:44,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=498, Unknown=0, NotChecked=0, Total=552 [2021-11-19 15:50:44,790 INFO L87 Difference]: Start difference. First operand 205 states and 280 transitions. Second operand has 9 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-19 15:50:45,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:50:45,226 INFO L93 Difference]: Finished difference Result 331 states and 452 transitions. [2021-11-19 15:50:45,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 15:50:45,238 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 125 [2021-11-19 15:50:45,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:50:45,241 INFO L225 Difference]: With dead ends: 331 [2021-11-19 15:50:45,242 INFO L226 Difference]: Without dead ends: 210 [2021-11-19 15:50:45,243 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 499 GetRequests, 469 SyntacticMatches, 5 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=69, Invalid=633, Unknown=0, NotChecked=0, Total=702 [2021-11-19 15:50:45,245 INFO L933 BasicCegarLoop]: 167 mSDtfsCounter, 12 mSDsluCounter, 1114 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1281 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 15:50:45,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 1281 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 15:50:45,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2021-11-19 15:50:45,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2021-11-19 15:50:45,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 126 states have (on average 1.1587301587301588) internal successors, (146), 134 states have internal predecessors, (146), 60 states have call successors, (60), 17 states have call predecessors, (60), 23 states have return successors, (86), 58 states have call predecessors, (86), 59 states have call successors, (86) [2021-11-19 15:50:45,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 292 transitions. [2021-11-19 15:50:45,304 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 292 transitions. Word has length 125 [2021-11-19 15:50:45,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:50:45,306 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 292 transitions. [2021-11-19 15:50:45,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-19 15:50:45,307 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 292 transitions. [2021-11-19 15:50:45,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-19 15:50:45,310 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:50:45,310 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:50:45,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-19 15:50:45,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-11-19 15:50:45,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 15:50:45,724 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:50:45,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:50:45,724 INFO L85 PathProgramCache]: Analyzing trace with hash -339815154, now seen corresponding path program 1 times [2021-11-19 15:50:45,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:50:45,727 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [671917452] [2021-11-19 15:50:45,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:50:45,727 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:50:45,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:50:45,728 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:50:45,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-19 15:50:46,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:50:46,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 1565 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-19 15:50:46,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:50:47,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 15:50:47,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 15:50:48,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 45 [2021-11-19 15:50:48,047 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 41 [2021-11-19 15:50:48,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2021-11-19 15:50:48,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2021-11-19 15:50:48,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2021-11-19 15:50:48,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-19 15:50:48,867 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 76 proven. 8 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2021-11-19 15:50:48,867 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:50:50,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 32 [2021-11-19 15:50:50,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:50:50,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:50:50,865 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2021-11-19 15:50:50,866 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:50:50,866 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [671917452] [2021-11-19 15:50:50,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [671917452] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:50:50,866 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1738765188] [2021-11-19 15:50:50,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:50:50,866 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 15:50:50,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 15:50:50,867 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 15:50:50,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-11-19 15:50:51,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:50:51,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 1565 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 15:50:51,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:50:52,938 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-11-19 15:50:52,938 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:50:53,812 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 5 proven. 14 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-11-19 15:50:53,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1738765188] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 15:50:53,813 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-19 15:50:53,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13, 11, 5] total 21 [2021-11-19 15:50:53,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977781344] [2021-11-19 15:50:53,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:50:53,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 15:50:53,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:50:53,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 15:50:53,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2021-11-19 15:50:53,816 INFO L87 Difference]: Start difference. First operand 210 states and 292 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-19 15:50:55,991 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:50:57,998 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:51:00,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:51:00,257 INFO L93 Difference]: Finished difference Result 413 states and 582 transitions. [2021-11-19 15:51:00,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 15:51:00,261 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 127 [2021-11-19 15:51:00,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:51:00,263 INFO L225 Difference]: With dead ends: 413 [2021-11-19 15:51:00,264 INFO L226 Difference]: Without dead ends: 210 [2021-11-19 15:51:00,266 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 506 GetRequests, 480 SyntacticMatches, 5 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=62, Invalid=444, Unknown=0, NotChecked=0, Total=506 [2021-11-19 15:51:00,267 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 17 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 34 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2021-11-19 15:51:00,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 597 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 2 Unknown, 34 Unchecked, 5.6s Time] [2021-11-19 15:51:00,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2021-11-19 15:51:00,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2021-11-19 15:51:00,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 126 states have (on average 1.1507936507936507) internal successors, (145), 134 states have internal predecessors, (145), 60 states have call successors, (60), 17 states have call predecessors, (60), 23 states have return successors, (86), 58 states have call predecessors, (86), 59 states have call successors, (86) [2021-11-19 15:51:00,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 291 transitions. [2021-11-19 15:51:00,307 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 291 transitions. Word has length 127 [2021-11-19 15:51:00,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:51:00,308 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 291 transitions. [2021-11-19 15:51:00,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-19 15:51:00,308 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 291 transitions. [2021-11-19 15:51:00,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-19 15:51:00,312 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:51:00,312 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:51:00,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2021-11-19 15:51:00,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-19 15:51:00,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:51:00,718 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:51:00,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:51:00,718 INFO L85 PathProgramCache]: Analyzing trace with hash 220884624, now seen corresponding path program 1 times [2021-11-19 15:51:00,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:51:00,721 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2084165950] [2021-11-19 15:51:00,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:51:00,722 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:51:00,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:51:00,722 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:51:00,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-19 15:51:01,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:51:01,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 1568 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-19 15:51:01,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:51:02,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 15:51:02,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 15:51:03,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 45 [2021-11-19 15:51:03,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 41 [2021-11-19 15:51:03,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2021-11-19 15:51:03,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2021-11-19 15:51:03,354 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2021-11-19 15:51:03,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-19 15:51:03,787 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 76 proven. 8 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2021-11-19 15:51:03,787 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:51:05,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 32 [2021-11-19 15:51:05,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:51:05,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:51:05,392 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2021-11-19 15:51:05,392 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:51:05,392 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2084165950] [2021-11-19 15:51:05,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2084165950] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:51:05,392 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [779300429] [2021-11-19 15:51:05,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:51:05,392 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 15:51:05,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 15:51:05,394 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 15:51:05,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2021-11-19 15:51:11,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:51:11,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 1568 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-19 15:51:11,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:51:11,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 15:51:11,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 15:51:12,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 45 [2021-11-19 15:51:12,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 41 [2021-11-19 15:51:12,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2021-11-19 15:51:12,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2021-11-19 15:51:12,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2021-11-19 15:51:12,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-19 15:51:13,128 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 76 proven. 8 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2021-11-19 15:51:13,129 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:51:16,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 32 [2021-11-19 15:51:16,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:51:16,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:51:16,751 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2021-11-19 15:51:16,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [779300429] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:51:16,751 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100362071] [2021-11-19 15:51:16,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:51:16,751 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:51:16,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:51:16,752 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 15:51:16,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-19 15:51:18,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:51:18,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 1568 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-19 15:51:18,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:51:18,298 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 15:51:18,348 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 15:51:19,170 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 45 [2021-11-19 15:51:19,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 41 [2021-11-19 15:51:19,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2021-11-19 15:51:19,185 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2021-11-19 15:51:19,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2021-11-19 15:51:19,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-19 15:51:19,615 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 76 proven. 8 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2021-11-19 15:51:19,615 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:51:21,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 32 [2021-11-19 15:51:21,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:51:21,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:51:21,153 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2021-11-19 15:51:21,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100362071] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:51:21,154 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-19 15:51:21,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 13, 11, 13, 11] total 16 [2021-11-19 15:51:21,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369694378] [2021-11-19 15:51:21,154 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-19 15:51:21,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-19 15:51:21,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:51:21,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-19 15:51:21,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-11-19 15:51:21,157 INFO L87 Difference]: Start difference. First operand 210 states and 291 transitions. Second operand has 16 states, 15 states have (on average 6.0) internal successors, (90), 16 states have internal predecessors, (90), 9 states have call successors, (34), 5 states have call predecessors, (34), 7 states have return successors, (33), 8 states have call predecessors, (33), 9 states have call successors, (33) [2021-11-19 15:51:23,272 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:51:25,278 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:51:27,285 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:51:29,292 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:51:38,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:51:38,547 INFO L93 Difference]: Finished difference Result 628 states and 974 transitions. [2021-11-19 15:51:38,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-19 15:51:38,549 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.0) internal successors, (90), 16 states have internal predecessors, (90), 9 states have call successors, (34), 5 states have call predecessors, (34), 7 states have return successors, (33), 8 states have call predecessors, (33), 9 states have call successors, (33) Word has length 127 [2021-11-19 15:51:38,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:51:38,555 INFO L225 Difference]: With dead ends: 628 [2021-11-19 15:51:38,555 INFO L226 Difference]: Without dead ends: 480 [2021-11-19 15:51:38,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 767 GetRequests, 724 SyntacticMatches, 19 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=92, Invalid=558, Unknown=0, NotChecked=0, Total=650 [2021-11-19 15:51:38,559 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 192 mSDsluCounter, 897 mSDsCounter, 0 mSdLazyCounter, 1586 mSolverCounterSat, 189 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 1069 SdHoareTripleChecker+Invalid, 2323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 1586 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 544 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2021-11-19 15:51:38,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [255 Valid, 1069 Invalid, 2323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 1586 Invalid, 4 Unknown, 544 Unchecked, 16.5s Time] [2021-11-19 15:51:38,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2021-11-19 15:51:38,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 252. [2021-11-19 15:51:38,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 153 states have (on average 1.1503267973856208) internal successors, (176), 162 states have internal predecessors, (176), 71 states have call successors, (71), 20 states have call predecessors, (71), 27 states have return successors, (105), 69 states have call predecessors, (105), 70 states have call successors, (105) [2021-11-19 15:51:38,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 352 transitions. [2021-11-19 15:51:38,624 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 352 transitions. Word has length 127 [2021-11-19 15:51:38,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:51:38,625 INFO L470 AbstractCegarLoop]: Abstraction has 252 states and 352 transitions. [2021-11-19 15:51:38,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 6.0) internal successors, (90), 16 states have internal predecessors, (90), 9 states have call successors, (34), 5 states have call predecessors, (34), 7 states have return successors, (33), 8 states have call predecessors, (33), 9 states have call successors, (33) [2021-11-19 15:51:38,626 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 352 transitions. [2021-11-19 15:51:38,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-19 15:51:38,629 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:51:38,630 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:51:38,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2021-11-19 15:51:38,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-19 15:51:39,097 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2021-11-19 15:51:39,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:51:39,241 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:51:39,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:51:39,241 INFO L85 PathProgramCache]: Analyzing trace with hash 2106135600, now seen corresponding path program 2 times [2021-11-19 15:51:39,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:51:39,243 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1412682066] [2021-11-19 15:51:39,243 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 15:51:39,244 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:51:39,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:51:39,244 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:51:39,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-19 15:51:53,792 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 15:51:53,792 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 15:51:53,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 1568 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-19 15:51:53,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:51:57,394 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 81 proven. 11 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-19 15:51:57,395 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:52:01,459 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:52:01,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 43 [2021-11-19 15:52:01,487 INFO L354 Elim1Store]: treesize reduction 8, result has 46.7 percent of original size [2021-11-19 15:52:01,487 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 34 [2021-11-19 15:52:01,676 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 18 proven. 16 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2021-11-19 15:52:01,676 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:52:01,676 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1412682066] [2021-11-19 15:52:01,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1412682066] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:52:01,677 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1076459810] [2021-11-19 15:52:01,677 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 15:52:01,677 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 15:52:01,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 15:52:01,690 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 15:52:01,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad50f08-b6f2-4db8-a880-bea74532e67f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2021-11-19 15:53:10,849 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 15:53:10,849 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 15:53:11,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 1568 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-19 15:53:11,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:53:11,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-11-19 15:53:11,490 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 15:53:11,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 15:53:15,167 INFO L354 Elim1Store]: treesize reduction 1610, result has 0.6 percent of original size [2021-11-19 15:53:15,168 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 245 treesize of output 150 [2021-11-19 15:53:15,584 INFO L354 Elim1Store]: treesize reduction 1610, result has 0.6 percent of original size [2021-11-19 15:53:15,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 147 treesize of output 52 [2021-11-19 15:53:15,623 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-19 15:53:15,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 48 [2021-11-19 15:53:15,653 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-19 15:53:15,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 44 [2021-11-19 15:53:16,061 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-19 15:53:16,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 37 [2021-11-19 15:53:16,069 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-19 15:53:16,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 17 [2021-11-19 15:53:16,734 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 80 proven. 4 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2021-11-19 15:53:16,734 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:53:17,478 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:53:17,481 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 517 [2021-11-19 15:53:17,488 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:53:17,490 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 796 [2021-11-19 15:53:23,881 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.offset| (_ BitVec 64)) (v_DerPreprocessor_8 (_ BitVec 64)) (v_DerPreprocessor_7 (_ BitVec 64)) (v_DerPreprocessor_6 (_ BitVec 64)) (v_DerPreprocessor_5 (_ BitVec 64)) (v_DerPreprocessor_4 (_ BitVec 64)) (v_DerPreprocessor_3 (_ BitVec 64)) (v_DerPreprocessor_2 (_ BitVec 64)) (v_DerPreprocessor_1 (_ BitVec 64))) (= (_ bv0 64) (let ((.cse0 (bvadd (_ bv8 64) |c_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset|))) (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base| (store (store (store (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base|) |ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.offset| v_DerPreprocessor_1) (bvadd (_ bv1 64) |ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.offset|) v_DerPreprocessor_2) (bvadd (_ bv2 64) |ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.offset|) v_DerPreprocessor_3) (bvadd (_ bv3 64) |ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.offset|) v_DerPreprocessor_4) (bvadd (_ bv4 64) |ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.offset|) v_DerPreprocessor_5) (bvadd |ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.offset| (_ bv5 64)) v_DerPreprocessor_6) (bvadd (_ bv6 64) |ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.offset|) v_DerPreprocessor_7) (bvadd (_ bv7 64) |ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.offset|) v_DerPreprocessor_8) (bvadd (_ bv8 64) |ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.offset|) (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base|) .cse0))) |c_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base|) .cse0)))) (forall ((v_DerPreprocessor_13 (_ BitVec 64)) (v_DerPreprocessor_14 (_ BitVec 64)) (v_DerPreprocessor_11 (_ BitVec 64)) (v_DerPreprocessor_12 (_ BitVec 64)) (|ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.offset| (_ BitVec 64)) (v_DerPreprocessor_9 (_ BitVec 64)) (v_DerPreprocessor_15 (_ BitVec 64)) (v_DerPreprocessor_16 (_ BitVec 64)) (v_DerPreprocessor_10 (_ BitVec 64))) (= (_ bv0 64) (let ((.cse1 (bvadd (_ bv8 64) |c_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset|))) (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base| (store (store (store (store (store (store (store (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base|) |ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.offset| v_DerPreprocessor_9) (bvadd (_ bv1 64) |ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.offset|) v_DerPreprocessor_10) (bvadd (_ bv2 64) |ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.offset|) v_DerPreprocessor_11) (bvadd (_ bv3 64) |ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.offset|) v_DerPreprocessor_12) (bvadd (_ bv4 64) |ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.offset|) v_DerPreprocessor_13) (bvadd |ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.offset| (_ bv5 64)) v_DerPreprocessor_14) (bvadd (_ bv6 64) |ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.offset|) v_DerPreprocessor_15) (bvadd (_ bv7 64) |ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.offset|) v_DerPreprocessor_16) (bvadd (_ bv8 64) |ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.offset|) (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base|) .cse1))) |c_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base|) .cse1))))) is different from false