./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_satisfies_pred_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_satisfies_pred_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF --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 21e14c4abf3c8c626ff1e4d64bac7246a96ab8c19ab8b6f263006a7e1f8fc191 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:28:48,420 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:28:48,422 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:28:48,464 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:28:48,465 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:28:48,466 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:28:48,467 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:28:48,469 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:28:48,471 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:28:48,472 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:28:48,473 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:28:48,475 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:28:48,475 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:28:48,476 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:28:48,478 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:28:48,479 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:28:48,480 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:28:48,481 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:28:48,483 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:28:48,485 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:28:48,487 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:28:48,488 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:28:48,489 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:28:48,490 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:28:48,493 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:28:48,494 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:28:48,494 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:28:48,495 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:28:48,496 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:28:48,497 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:28:48,497 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:28:48,498 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:28:48,499 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:28:48,500 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:28:48,501 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:28:48,501 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:28:48,502 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:28:48,502 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:28:48,502 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:28:48,503 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:28:48,504 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:28:48,505 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 22:28:48,532 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:28:48,533 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:28:48,534 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:28:48,534 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:28:48,534 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:28:48,534 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:28:48,535 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:28:48,535 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:28:48,535 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:28:48,535 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:28:48,536 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:28:48,536 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:28:48,536 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:28:48,536 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:28:48,537 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:28:48,537 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:28:48,538 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:28:48,538 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:28:48,538 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:28:48,538 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:28:48,538 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:28:48,539 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:28:48,539 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:28:48,539 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:28:48,539 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:28:48,540 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:28:48,540 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:28:48,540 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:28:48,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:28:48,541 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:28:48,541 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:28:48,541 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:28:48,541 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:28:48,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:28:48,542 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:28:48,542 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:28:48,542 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:28:48,543 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_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 21e14c4abf3c8c626ff1e4d64bac7246a96ab8c19ab8b6f263006a7e1f8fc191 [2021-11-12 22:28:48,768 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:28:48,795 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:28:48,798 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:28:48,799 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:28:48,800 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:28:48,802 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_satisfies_pred_harness.i [2021-11-12 22:28:48,885 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF/data/7089bbb39/aeffdb42bcb647be87f4f3ed1a28671d/FLAGb9b59607a [2021-11-12 22:28:49,698 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:28:49,698 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/sv-benchmarks/c/aws-c-common/aws_byte_cursor_satisfies_pred_harness.i [2021-11-12 22:28:49,733 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF/data/7089bbb39/aeffdb42bcb647be87f4f3ed1a28671d/FLAGb9b59607a [2021-11-12 22:28:50,208 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF/data/7089bbb39/aeffdb42bcb647be87f4f3ed1a28671d [2021-11-12 22:28:50,210 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:28:50,212 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:28:50,214 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:28:50,214 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:28:50,216 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:28:50,217 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:28:50" (1/1) ... [2021-11-12 22:28:50,218 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49a2e590 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:28:50, skipping insertion in model container [2021-11-12 22:28:50,218 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:28:50" (1/1) ... [2021-11-12 22:28:50,225 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:28:50,380 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:28:50,678 WARN L228 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_112a9024-6566-4922-bcef-ffd591c17415/sv-benchmarks/c/aws-c-common/aws_byte_cursor_satisfies_pred_harness.i[4504,4517] [2021-11-12 22:28:50,686 WARN L228 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_112a9024-6566-4922-bcef-ffd591c17415/sv-benchmarks/c/aws-c-common/aws_byte_cursor_satisfies_pred_harness.i[4564,4577] [2021-11-12 22:28:50,713 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 22:28:50,719 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 22:28:51,708 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:28:51,709 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:28:51,710 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:28:51,710 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:28:51,712 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:28:51,727 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:28:51,728 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:28:51,730 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:28:51,731 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:28:52,146 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 22:28:52,147 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 22:28:52,149 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 22:28:52,150 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 22:28:52,152 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 22:28:52,153 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 22:28:52,153 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 22:28:52,154 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 22:28:52,155 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 22:28:52,155 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 22:28:52,339 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 22:28:52,455 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:28:52,456 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:28:52,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:28:52,567 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) [2021-11-12 22:28:52,568 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2f4ec04d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:28:52, skipping insertion in model container [2021-11-12 22:28:52,568 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:28:52,569 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 22:28:52,571 INFO L158 Benchmark]: Toolchain (without parser) took 2357.75ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 64.7MB in the beginning and 51.4MB in the end (delta: 13.2MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. [2021-11-12 22:28:52,572 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 107.0MB. Free memory was 61.3MB in the beginning and 61.2MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:28:52,573 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2355.13ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 64.4MB in the beginning and 51.4MB in the end (delta: 12.9MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. [2021-11-12 22:28:52,575 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 107.0MB. Free memory was 61.3MB in the beginning and 61.2MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2355.13ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 64.4MB in the beginning and 51.4MB in the end (delta: 12.9MB). Peak memory consumption was 38.1MB. 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_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_satisfies_pred_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF --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 21e14c4abf3c8c626ff1e4d64bac7246a96ab8c19ab8b6f263006a7e1f8fc191 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:28:54,918 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:28:54,920 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:28:54,973 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:28:54,974 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:28:54,979 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:28:54,981 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:28:54,985 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:28:54,988 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:28:54,996 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:28:54,998 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:28:55,000 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:28:55,000 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:28:55,003 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:28:55,005 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:28:55,009 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:28:55,011 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:28:55,012 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:28:55,014 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:28:55,022 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:28:55,024 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:28:55,025 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:28:55,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:28:55,029 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:28:55,032 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:28:55,033 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:28:55,033 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:28:55,034 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:28:55,034 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:28:55,035 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:28:55,035 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:28:55,036 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:28:55,037 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:28:55,037 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:28:55,038 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:28:55,038 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:28:55,039 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:28:55,039 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:28:55,039 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:28:55,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:28:55,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:28:55,041 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 22:28:55,070 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:28:55,072 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:28:55,073 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:28:55,073 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:28:55,074 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:28:55,074 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:28:55,074 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:28:55,074 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:28:55,074 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:28:55,075 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:28:55,077 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:28:55,077 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:28:55,078 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:28:55,078 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:28:55,078 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:28:55,078 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:28:55,079 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:28:55,079 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:28:55,079 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:28:55,079 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:28:55,079 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:28:55,080 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:28:55,080 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:28:55,080 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:28:55,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:28:55,081 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:28:55,081 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:28:55,081 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:28:55,081 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:28:55,081 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:28:55,082 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:28:55,082 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:28:55,082 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:28:55,082 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_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 21e14c4abf3c8c626ff1e4d64bac7246a96ab8c19ab8b6f263006a7e1f8fc191 [2021-11-12 22:28:55,499 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:28:55,528 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:28:55,531 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:28:55,533 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:28:55,533 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:28:55,535 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_satisfies_pred_harness.i [2021-11-12 22:28:55,619 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF/data/fefe5ee73/6e1db03f294c4881b63365e8aa70e3a8/FLAG815a66695 [2021-11-12 22:28:56,470 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:28:56,471 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/sv-benchmarks/c/aws-c-common/aws_byte_cursor_satisfies_pred_harness.i [2021-11-12 22:28:56,543 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF/data/fefe5ee73/6e1db03f294c4881b63365e8aa70e3a8/FLAG815a66695 [2021-11-12 22:28:56,978 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF/data/fefe5ee73/6e1db03f294c4881b63365e8aa70e3a8 [2021-11-12 22:28:56,980 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:28:56,982 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:28:56,983 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:28:56,984 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:28:56,995 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:28:56,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:28:56" (1/1) ... [2021-11-12 22:28:57,002 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43906677 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:28:57, skipping insertion in model container [2021-11-12 22:28:57,002 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:28:56" (1/1) ... [2021-11-12 22:28:57,010 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:28:57,147 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:28:57,451 WARN L228 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_112a9024-6566-4922-bcef-ffd591c17415/sv-benchmarks/c/aws-c-common/aws_byte_cursor_satisfies_pred_harness.i[4504,4517] [2021-11-12 22:28:57,458 WARN L228 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_112a9024-6566-4922-bcef-ffd591c17415/sv-benchmarks/c/aws-c-common/aws_byte_cursor_satisfies_pred_harness.i[4564,4577] [2021-11-12 22:28:57,490 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 22:28:57,498 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 22:28:58,570 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:28:58,571 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:28:58,572 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:28:58,573 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:28:58,574 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:28:58,591 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:28:58,592 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:28:58,594 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:28:58,595 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:28:59,053 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 22:28:59,054 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 22:28:59,056 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 22:28:59,057 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 22:28:59,059 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 22:28:59,060 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 22:28:59,060 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 22:28:59,061 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 22:28:59,062 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 22:28:59,063 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 22:28:59,255 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 22:28:59,357 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:28:59,358 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:28:59,445 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:28:59,520 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 22:28:59,569 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:28:59,577 WARN L228 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_112a9024-6566-4922-bcef-ffd591c17415/sv-benchmarks/c/aws-c-common/aws_byte_cursor_satisfies_pred_harness.i[4504,4517] [2021-11-12 22:28:59,578 WARN L228 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_112a9024-6566-4922-bcef-ffd591c17415/sv-benchmarks/c/aws-c-common/aws_byte_cursor_satisfies_pred_harness.i[4564,4577] [2021-11-12 22:28:59,580 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 22:28:59,583 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 22:28:59,650 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:28:59,651 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:28:59,651 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:28:59,651 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:28:59,661 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:28:59,676 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:28:59,678 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:28:59,682 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:28:59,683 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:28:59,746 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 22:28:59,751 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 22:28:59,753 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 22:28:59,754 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 22:28:59,758 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 22:28:59,759 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 22:28:59,759 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 22:28:59,760 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 22:28:59,760 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 22:28:59,764 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 22:28:59,802 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 22:28:59,902 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:28:59,907 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:28:59,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:29:00,018 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:29:00,031 WARN L228 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_112a9024-6566-4922-bcef-ffd591c17415/sv-benchmarks/c/aws-c-common/aws_byte_cursor_satisfies_pred_harness.i[4504,4517] [2021-11-12 22:29:00,032 WARN L228 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_112a9024-6566-4922-bcef-ffd591c17415/sv-benchmarks/c/aws-c-common/aws_byte_cursor_satisfies_pred_harness.i[4564,4577] [2021-11-12 22:29:00,033 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 22:29:00,034 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 22:29:00,062 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:29:00,062 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:29:00,063 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:29:00,063 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:29:00,063 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:29:00,070 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:29:00,070 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:29:00,071 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:29:00,071 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:29:00,102 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 22:29:00,102 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 22:29:00,103 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 22:29:00,121 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 22:29:00,121 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 22:29:00,122 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 22:29:00,122 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 22:29:00,123 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 22:29:00,123 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 22:29:00,123 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 22:29:00,148 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 22:29:00,221 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:29:00,222 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:29:00,274 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:29:00,743 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:29:00,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:29:00 WrapperNode [2021-11-12 22:29:00,744 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:29:00,745 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:29:00,745 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:29:00,746 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:29:00,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:29:00" (1/1) ... [2021-11-12 22:29:00,906 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:29:00" (1/1) ... [2021-11-12 22:29:01,015 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:29:01,017 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:29:01,017 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:29:01,018 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:29:01,027 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:29:00" (1/1) ... [2021-11-12 22:29:01,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:29:00" (1/1) ... [2021-11-12 22:29:01,044 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:29:00" (1/1) ... [2021-11-12 22:29:01,045 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:29:00" (1/1) ... [2021-11-12 22:29:01,115 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:29:00" (1/1) ... [2021-11-12 22:29:01,133 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:29:00" (1/1) ... [2021-11-12 22:29:01,150 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:29:00" (1/1) ... [2021-11-12 22:29:01,164 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:29:01,165 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:29:01,166 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:29:01,166 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:29:01,167 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:29:00" (1/1) ... [2021-11-12 22:29:01,174 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:29:01,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:29:01,198 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:29:01,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:29:01,246 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2021-11-12 22:29:01,246 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2021-11-12 22:29:01,246 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~uint8_t~0~TO~C_BOOL [2021-11-12 22:29:01,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~uint8_t~0~TO~C_BOOL [2021-11-12 22:29:01,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:29:01,246 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-12 22:29:01,247 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-12 22:29:01,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:29:01,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 22:29:01,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-12 22:29:01,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-12 22:29:01,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-12 22:29:01,249 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_left_trim_pred [2021-11-12 22:29:01,249 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_left_trim_pred [2021-11-12 22:29:01,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 22:29:01,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 22:29:01,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:29:01,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:29:01,249 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-12 22:29:01,250 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-12 22:29:01,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 22:29:01,250 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-11-12 22:29:01,250 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-11-12 22:29:01,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 22:29:01,250 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-12 22:29:01,250 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-12 22:29:01,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:29:01,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 22:29:01,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 22:29:01,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 22:29:01,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 22:29:14,859 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:29:14,860 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-12 22:29:14,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:29:14 BoogieIcfgContainer [2021-11-12 22:29:14,863 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:29:14,865 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:29:14,866 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:29:14,869 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:29:14,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:28:56" (1/3) ... [2021-11-12 22:29:14,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c2b0ee2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:29:14, skipping insertion in model container [2021-11-12 22:29:14,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:29:00" (2/3) ... [2021-11-12 22:29:14,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c2b0ee2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:29:14, skipping insertion in model container [2021-11-12 22:29:14,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:29:14" (3/3) ... [2021-11-12 22:29:14,877 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_satisfies_pred_harness.i [2021-11-12 22:29:14,884 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:29:14,885 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 22:29:14,956 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:29:14,963 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 [2021-11-12 22:29:14,969 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 22:29:14,991 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 64 states have (on average 1.234375) internal successors, (79), 65 states have internal predecessors, (79), 22 states have call successors, (22), 8 states have call predecessors, (22), 8 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-12 22:29:15,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-12 22:29:15,003 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:29:15,004 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:29:15,005 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:29:15,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:29:15,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1362767803, now seen corresponding path program 1 times [2021-11-12 22:29:15,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:29:15,033 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1141284709] [2021-11-12 22:29:15,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:29:15,034 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:29:15,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:29:15,041 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:29:15,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:29:18,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:29:19,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 1815 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-12 22:29:19,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:29:19,277 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-12 22:29:19,277 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:29:19,462 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-11-12 22:29:19,463 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:29:19,463 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1141284709] [2021-11-12 22:29:19,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1141284709] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:29:19,466 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:29:19,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-12 22:29:19,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577379599] [2021-11-12 22:29:19,472 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:29:19,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 22:29:19,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:29:19,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 22:29:19,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:29:19,525 INFO L87 Difference]: Start difference. First operand has 96 states, 64 states have (on average 1.234375) internal successors, (79), 65 states have internal predecessors, (79), 22 states have call successors, (22), 8 states have call predecessors, (22), 8 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-12 22:29:19,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:29:19,568 INFO L93 Difference]: Finished difference Result 188 states and 255 transitions. [2021-11-12 22:29:19,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 22:29:19,571 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 61 [2021-11-12 22:29:19,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:29:19,579 INFO L225 Difference]: With dead ends: 188 [2021-11-12 22:29:19,580 INFO L226 Difference]: Without dead ends: 87 [2021-11-12 22:29:19,584 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:29:19,587 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.29ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-12 22:29:19,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 6.29ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-12 22:29:19,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-11-12 22:29:19,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2021-11-12 22:29:19,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 57 states have (on average 1.1754385964912282) internal successors, (67), 58 states have internal predecessors, (67), 22 states have call successors, (22), 8 states have call predecessors, (22), 7 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-12 22:29:19,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 109 transitions. [2021-11-12 22:29:19,649 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 109 transitions. Word has length 61 [2021-11-12 22:29:19,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:29:19,654 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 109 transitions. [2021-11-12 22:29:19,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-12 22:29:19,655 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 109 transitions. [2021-11-12 22:29:19,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-12 22:29:19,659 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:29:19,660 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:29:19,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 22:29:19,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:29:19,873 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:29:19,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:29:19,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1915487010, now seen corresponding path program 1 times [2021-11-12 22:29:19,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:29:19,881 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [479611170] [2021-11-12 22:29:19,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:29:19,881 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:29:19,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:29:19,882 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:29:19,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 22:29:23,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:29:23,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 1818 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:29:23,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:29:24,377 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-12 22:29:24,377 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:29:24,782 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-12 22:29:24,783 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:29:24,783 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [479611170] [2021-11-12 22:29:24,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [479611170] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:29:24,783 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:29:24,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-11-12 22:29:24,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716891700] [2021-11-12 22:29:24,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:29:24,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:29:24,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:29:24,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:29:24,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:29:24,786 INFO L87 Difference]: Start difference. First operand 87 states and 109 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-12 22:29:25,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:29:25,002 INFO L93 Difference]: Finished difference Result 157 states and 202 transitions. [2021-11-12 22:29:25,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:29:25,003 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 63 [2021-11-12 22:29:25,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:29:25,007 INFO L225 Difference]: With dead ends: 157 [2021-11-12 22:29:25,007 INFO L226 Difference]: Without dead ends: 90 [2021-11-12 22:29:25,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:29:25,010 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 28 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 157.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.36ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 187.69ms IncrementalHoareTripleChecker+Time [2021-11-12 22:29:25,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 341 Invalid, 51 Unknown, 0 Unchecked, 5.36ms Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 187.69ms Time] [2021-11-12 22:29:25,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-11-12 22:29:25,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2021-11-12 22:29:25,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 59 states have (on average 1.1694915254237288) internal successors, (69), 61 states have internal predecessors, (69), 22 states have call successors, (22), 8 states have call predecessors, (22), 8 states have return successors, (24), 20 states have call predecessors, (24), 20 states have call successors, (24) [2021-11-12 22:29:25,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 115 transitions. [2021-11-12 22:29:25,026 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 115 transitions. Word has length 63 [2021-11-12 22:29:25,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:29:25,026 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 115 transitions. [2021-11-12 22:29:25,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-12 22:29:25,027 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 115 transitions. [2021-11-12 22:29:25,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-12 22:29:25,030 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:29:25,030 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:29:25,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 22:29:25,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:29:25,253 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:29:25,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:29:25,254 INFO L85 PathProgramCache]: Analyzing trace with hash -2000047271, now seen corresponding path program 1 times [2021-11-12 22:29:25,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:29:25,260 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1198616437] [2021-11-12 22:29:25,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:29:25,261 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:29:25,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:29:25,262 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:29:25,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 22:29:29,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:29:29,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 1822 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 22:29:29,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:29:29,711 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-12 22:29:29,712 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:29:30,126 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-12 22:29:30,127 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:29:30,127 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1198616437] [2021-11-12 22:29:30,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1198616437] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:29:30,127 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:29:30,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 8 [2021-11-12 22:29:30,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182063670] [2021-11-12 22:29:30,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:29:30,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 22:29:30,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:29:30,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 22:29:30,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 22:29:30,130 INFO L87 Difference]: Start difference. First operand 90 states and 115 transitions. Second operand has 8 states, 6 states have (on average 6.833333333333333) internal successors, (41), 7 states have internal predecessors, (41), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2021-11-12 22:29:30,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:29:30,441 INFO L93 Difference]: Finished difference Result 150 states and 191 transitions. [2021-11-12 22:29:30,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 22:29:30,443 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 6.833333333333333) internal successors, (41), 7 states have internal predecessors, (41), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 65 [2021-11-12 22:29:30,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:29:30,444 INFO L225 Difference]: With dead ends: 150 [2021-11-12 22:29:30,444 INFO L226 Difference]: Without dead ends: 90 [2021-11-12 22:29:30,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:29:30,446 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 54 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 211.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.39ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 248.81ms IncrementalHoareTripleChecker+Time [2021-11-12 22:29:30,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 513 Invalid, 88 Unknown, 0 Unchecked, 5.39ms Time], IncrementalHoareTripleChecker [30 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 248.81ms Time] [2021-11-12 22:29:30,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-11-12 22:29:30,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2021-11-12 22:29:30,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 59 states have (on average 1.1694915254237288) internal successors, (69), 61 states have internal predecessors, (69), 22 states have call successors, (22), 8 states have call predecessors, (22), 8 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2021-11-12 22:29:30,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 112 transitions. [2021-11-12 22:29:30,460 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 112 transitions. Word has length 65 [2021-11-12 22:29:30,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:29:30,460 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 112 transitions. [2021-11-12 22:29:30,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 6.833333333333333) internal successors, (41), 7 states have internal predecessors, (41), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2021-11-12 22:29:30,461 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 112 transitions. [2021-11-12 22:29:30,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-12 22:29:30,464 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:29:30,464 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:29:30,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 22:29:30,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:29:30,674 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:29:30,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:29:30,675 INFO L85 PathProgramCache]: Analyzing trace with hash -2115352711, now seen corresponding path program 1 times [2021-11-12 22:29:30,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:29:30,680 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [473040076] [2021-11-12 22:29:30,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:29:30,681 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:29:30,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:29:30,682 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:29:30,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_112a9024-6566-4922-bcef-ffd591c17415/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 22:29:34,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:29:35,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 1830 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-12 22:29:35,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:29:39,624 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 22 proven. 10 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-12 22:29:39,625 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:29:55,089 WARN L227 SmtUtils]: Spent 10.20s on a formula simplification. DAG size of input: 523 DAG size of output: 269 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-12 22:29:55,095 INFO L354 Elim1Store]: treesize reduction 837, result has 46.8 percent of original size [2021-11-12 22:29:55,097 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 128 treesize of output 771