./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8 --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 ab48078691743837960e369bd318845908490844fac300de97818a03fa84d8a1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:24:12,485 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:24:12,488 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:24:12,555 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:24:12,556 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:24:12,557 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:24:12,560 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:24:12,563 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:24:12,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:24:12,568 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:24:12,570 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:24:12,572 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:24:12,573 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:24:12,574 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:24:12,577 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:24:12,579 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:24:12,580 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:24:12,582 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:24:12,585 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:24:12,589 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:24:12,592 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:24:12,594 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:24:12,596 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:24:12,597 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:24:12,603 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:24:12,603 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:24:12,604 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:24:12,605 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:24:12,606 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:24:12,608 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:24:12,609 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:24:12,611 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:24:12,612 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:24:12,614 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:24:12,615 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:24:12,616 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:24:12,617 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:24:12,617 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:24:12,617 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:24:12,619 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:24:12,620 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:24:12,621 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:24:12,657 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:24:12,657 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:24:12,658 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:24:12,659 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:24:12,659 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:24:12,659 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:24:12,659 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:24:12,660 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:24:12,660 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:24:12,660 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:24:12,660 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:24:12,661 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:24:12,661 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:24:12,661 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:24:12,662 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:24:12,662 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:24:12,663 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:24:12,663 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:24:12,663 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:24:12,663 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:24:12,664 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:24:12,664 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:24:12,664 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:24:12,664 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:24:12,665 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:24:12,665 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:24:12,665 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:24:12,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:24:12,666 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:24:12,666 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:24:12,666 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:24:12,667 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:24:12,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:24:12,667 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:24:12,667 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:24:12,668 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:24:12,668 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_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab48078691743837960e369bd318845908490844fac300de97818a03fa84d8a1 [2021-11-07 01:24:12,987 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:24:13,027 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:24:13,032 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:24:13,034 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:24:13,035 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:24:13,036 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness.i [2021-11-07 01:24:13,124 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/data/1632f6edf/b9bb21310cc1494aa43f31f2e0c52b06/FLAGbe7d8cd18 [2021-11-07 01:24:14,253 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:24:14,254 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness.i [2021-11-07 01:24:14,326 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/data/1632f6edf/b9bb21310cc1494aa43f31f2e0c52b06/FLAGbe7d8cd18 [2021-11-07 01:24:14,569 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/data/1632f6edf/b9bb21310cc1494aa43f31f2e0c52b06 [2021-11-07 01:24:14,572 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:24:14,573 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:24:14,578 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:24:14,579 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:24:14,583 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:24:14,584 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:24:14" (1/1) ... [2021-11-07 01:24:14,585 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33128219 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:14, skipping insertion in model container [2021-11-07 01:24:14,586 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:24:14" (1/1) ... [2021-11-07 01:24:14,595 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:24:14,794 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:24:15,187 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_b10667c0-f76d-45a2-9272-ce46d05b6335/sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness.i[4498,4511] [2021-11-07 01:24:15,197 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_b10667c0-f76d-45a2-9272-ce46d05b6335/sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness.i[4558,4571] [2021-11-07 01:24:15,234 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:24:15,242 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:24:16,919 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:16,920 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:16,921 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:16,922 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:16,924 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:16,945 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:16,946 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:16,949 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:16,950 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:17,673 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:24:17,675 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:24:17,677 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:24:17,679 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:24:17,681 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:24:17,684 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:24:17,685 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:24:17,687 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:24:17,688 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:24:17,689 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:24:17,999 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:24:18,159 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:18,160 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:18,750 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:18,751 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:18,784 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:18,787 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:18,796 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:18,797 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:18,829 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:18,831 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:18,831 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:18,832 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:18,833 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:18,833 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:18,834 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:18,875 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:24:18,930 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) [2021-11-07 01:24:18,931 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4ace1d6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:18, skipping insertion in model container [2021-11-07 01:24:18,931 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:24:18,932 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:24:18,935 INFO L168 Benchmark]: Toolchain (without parser) took 4360.24 ms. Allocated memory was 117.4 MB in the beginning and 148.9 MB in the end (delta: 31.5 MB). Free memory was 75.9 MB in the beginning and 78.1 MB in the end (delta: -2.3 MB). Peak memory consumption was 41.2 MB. Max. memory is 16.1 GB. [2021-11-07 01:24:18,936 INFO L168 Benchmark]: CDTParser took 0.84 ms. Allocated memory is still 117.4 MB. Free memory is still 70.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:24:18,937 INFO L168 Benchmark]: CACSL2BoogieTranslator took 4353.52 ms. Allocated memory was 117.4 MB in the beginning and 148.9 MB in the end (delta: 31.5 MB). Free memory was 75.6 MB in the beginning and 78.1 MB in the end (delta: -2.6 MB). Peak memory consumption was 41.2 MB. Max. memory is 16.1 GB. [2021-11-07 01:24:18,939 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.84 ms. Allocated memory is still 117.4 MB. Free memory is still 70.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 4353.52 ms. Allocated memory was 117.4 MB in the beginning and 148.9 MB in the end (delta: 31.5 MB). Free memory was 75.6 MB in the beginning and 78.1 MB in the end (delta: -2.6 MB). Peak memory consumption was 41.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7002]: 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_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8 --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 ab48078691743837960e369bd318845908490844fac300de97818a03fa84d8a1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:24:21,392 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:24:21,396 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:24:21,462 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:24:21,463 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:24:21,469 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:24:21,471 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:24:21,483 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:24:21,487 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:24:21,497 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:24:21,498 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:24:21,499 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:24:21,500 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:24:21,501 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:24:21,503 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:24:21,505 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:24:21,506 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:24:21,507 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:24:21,525 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:24:21,530 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:24:21,533 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:24:21,539 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:24:21,545 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:24:21,547 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:24:21,551 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:24:21,551 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:24:21,552 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:24:21,553 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:24:21,553 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:24:21,554 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:24:21,555 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:24:21,556 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:24:21,557 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:24:21,560 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:24:21,563 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:24:21,563 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:24:21,564 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:24:21,565 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:24:21,565 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:24:21,567 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:24:21,568 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:24:21,570 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:24:21,620 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:24:21,620 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:24:21,622 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:24:21,622 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:24:21,622 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:24:21,623 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:24:21,623 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:24:21,623 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:24:21,623 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:24:21,625 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:24:21,626 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:24:21,627 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:24:21,627 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:24:21,627 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:24:21,628 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:24:21,628 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:24:21,628 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:24:21,628 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:24:21,628 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:24:21,629 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:24:21,629 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:24:21,629 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:24:21,630 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:24:21,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:24:21,630 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:24:21,630 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:24:21,631 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:24:21,631 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:24:21,631 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:24:21,631 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:24:21,631 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:24:21,632 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:24:21,632 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_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab48078691743837960e369bd318845908490844fac300de97818a03fa84d8a1 [2021-11-07 01:24:22,053 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:24:22,091 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:24:22,093 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:24:22,094 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:24:22,095 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:24:22,096 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness.i [2021-11-07 01:24:22,188 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/data/627735331/fa4965cf8b314cc5b2c0cfbe1b32e49d/FLAGd6645f02d [2021-11-07 01:24:23,458 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:24:23,461 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness.i [2021-11-07 01:24:23,528 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/data/627735331/fa4965cf8b314cc5b2c0cfbe1b32e49d/FLAGd6645f02d [2021-11-07 01:24:23,705 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/data/627735331/fa4965cf8b314cc5b2c0cfbe1b32e49d [2021-11-07 01:24:23,708 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:24:23,711 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:24:23,714 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:24:23,715 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:24:23,719 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:24:23,720 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:24:23" (1/1) ... [2021-11-07 01:24:23,721 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7582dffb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:23, skipping insertion in model container [2021-11-07 01:24:23,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:24:23" (1/1) ... [2021-11-07 01:24:23,731 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:24:23,992 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:24:24,402 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_b10667c0-f76d-45a2-9272-ce46d05b6335/sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness.i[4498,4511] [2021-11-07 01:24:24,414 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_b10667c0-f76d-45a2-9272-ce46d05b6335/sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness.i[4558,4571] [2021-11-07 01:24:24,447 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:24:24,462 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:24:25,896 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:25,897 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:25,898 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:25,899 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:25,901 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:25,922 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:25,923 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:25,925 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:25,927 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:26,598 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:24:26,600 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:24:26,601 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:24:26,603 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:24:26,605 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:24:26,606 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:24:26,607 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:24:26,608 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:24:26,609 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:24:26,610 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:24:26,917 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:24:27,048 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:27,049 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:27,604 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:27,606 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:27,638 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:27,640 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:27,654 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:27,654 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:27,680 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:27,685 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:27,686 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:27,686 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:27,687 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:27,687 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:27,689 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:27,765 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:24:27,867 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:24:27,967 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:24:27,974 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_b10667c0-f76d-45a2-9272-ce46d05b6335/sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness.i[4498,4511] [2021-11-07 01:24:27,975 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_b10667c0-f76d-45a2-9272-ce46d05b6335/sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness.i[4558,4571] [2021-11-07 01:24:27,976 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:24:27,977 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:24:28,043 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:28,044 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:28,044 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:28,045 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:28,046 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:28,056 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:28,056 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:28,057 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:28,058 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:28,110 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:24:28,111 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:24:28,112 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:24:28,114 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:24:28,115 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:24:28,116 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:24:28,116 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:24:28,117 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:24:28,117 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:24:28,118 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:24:28,218 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:24:28,312 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:28,315 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:28,537 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:28,537 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:28,547 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:28,548 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:28,551 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:28,552 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:28,561 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:28,562 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:28,563 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:28,563 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:28,564 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:28,566 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:28,567 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:28,597 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:24:28,659 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:24:28,685 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_b10667c0-f76d-45a2-9272-ce46d05b6335/sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness.i[4498,4511] [2021-11-07 01:24:28,691 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_b10667c0-f76d-45a2-9272-ce46d05b6335/sv-benchmarks/c/aws-c-common/aws_hash_byte_cursor_ptr_harness.i[4558,4571] [2021-11-07 01:24:28,693 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:24:28,694 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:24:28,746 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:28,746 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:28,747 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:28,749 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:28,749 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:28,756 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:28,756 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:28,757 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:28,759 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:28,802 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:24:28,803 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:24:28,804 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:24:28,805 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:24:28,806 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:24:28,807 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:24:28,809 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:24:28,835 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:24:28,836 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:24:28,836 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:24:28,863 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:24:28,935 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:28,936 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:29,072 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:29,073 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:29,083 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:29,084 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:29,089 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:29,090 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:29,102 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:29,103 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:29,104 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:29,105 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:29,106 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:29,106 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:29,107 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:29,139 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:24:29,544 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:24:29,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:29 WrapperNode [2021-11-07 01:24:29,545 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:24:29,546 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:24:29,547 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:24:29,547 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:24:29,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:29" (1/1) ... [2021-11-07 01:24:29,815 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:29" (1/1) ... [2021-11-07 01:24:29,932 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:24:29,933 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:24:29,933 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:24:29,933 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:24:29,951 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:29" (1/1) ... [2021-11-07 01:24:29,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:29" (1/1) ... [2021-11-07 01:24:29,971 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:29" (1/1) ... [2021-11-07 01:24:29,971 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:29" (1/1) ... [2021-11-07 01:24:30,039 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:29" (1/1) ... [2021-11-07 01:24:30,049 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:29" (1/1) ... [2021-11-07 01:24:30,067 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:29" (1/1) ... [2021-11-07 01:24:30,091 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:24:30,106 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:24:30,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:24:30,107 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:24:30,107 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:29" (1/1) ... [2021-11-07 01:24:30,116 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:24:30,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:24:30,148 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:24:30,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:24:30,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:24:30,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:24:30,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:24:30,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:24:30,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:24:30,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:24:30,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:24:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:24:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:24:30,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:24:30,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:24:30,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 01:24:30,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-07 01:24:30,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 01:24:30,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:24:52,444 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##187: assume !true; [2021-11-07 01:24:52,454 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:24:52,455 INFO L299 CfgBuilder]: Removed 43 assume(true) statements. [2021-11-07 01:24:52,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:24:52 BoogieIcfgContainer [2021-11-07 01:24:52,457 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:24:52,459 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:24:52,459 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:24:52,462 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:24:52,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:24:23" (1/3) ... [2021-11-07 01:24:52,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d5a2491 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:24:52, skipping insertion in model container [2021-11-07 01:24:52,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:29" (2/3) ... [2021-11-07 01:24:52,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d5a2491 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:24:52, skipping insertion in model container [2021-11-07 01:24:52,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:24:52" (3/3) ... [2021-11-07 01:24:52,466 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_byte_cursor_ptr_harness.i [2021-11-07 01:24:52,472 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:24:52,473 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-07 01:24:52,530 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:24:52,536 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 [2021-11-07 01:24:52,537 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-07 01:24:52,555 INFO L276 IsEmpty]: Start isEmpty. Operand has 145 states, 142 states have (on average 1.556338028169014) internal successors, (221), 144 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:24:52,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-07 01:24:52,563 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:24:52,564 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:24:52,564 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:24:52,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:24:52,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1720806424, now seen corresponding path program 1 times [2021-11-07 01:24:52,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:24:52,595 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [616680877] [2021-11-07 01:24:52,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:24:52,597 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:24:52,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:24:52,602 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:24:52,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:24:57,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:24:57,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 1784 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:24:57,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:24:58,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:24:58,098 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:24:58,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:24:58,231 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:24:58,231 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [616680877] [2021-11-07 01:24:58,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [616680877] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:24:58,232 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:24:58,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:24:58,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373151677] [2021-11-07 01:24:58,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:24:58,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:24:58,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:24:58,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:24:58,262 INFO L87 Difference]: Start difference. First operand has 145 states, 142 states have (on average 1.556338028169014) internal successors, (221), 144 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:24:58,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:24:58,299 INFO L93 Difference]: Finished difference Result 285 states and 436 transitions. [2021-11-07 01:24:58,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:24:58,301 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-11-07 01:24:58,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:24:58,314 INFO L225 Difference]: With dead ends: 285 [2021-11-07 01:24:58,315 INFO L226 Difference]: Without dead ends: 139 [2021-11-07 01:24:58,319 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:24:58,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-11-07 01:24:58,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2021-11-07 01:24:58,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 137 states have (on average 1.4963503649635037) internal successors, (205), 138 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:24:58,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 205 transitions. [2021-11-07 01:24:58,400 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 205 transitions. Word has length 33 [2021-11-07 01:24:58,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:24:58,401 INFO L470 AbstractCegarLoop]: Abstraction has 139 states and 205 transitions. [2021-11-07 01:24:58,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:24:58,402 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 205 transitions. [2021-11-07 01:24:58,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-07 01:24:58,405 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:24:58,405 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:24:58,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:24:58,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:24:58,619 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:24:58,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:24:58,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1998426598, now seen corresponding path program 1 times [2021-11-07 01:24:58,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:24:58,628 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1159665703] [2021-11-07 01:24:58,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:24:58,629 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:24:58,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:24:58,631 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:24:58,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:25:03,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:25:03,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 1784 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:25:03,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:25:03,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:25:03,984 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:25:04,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:25:04,197 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:25:04,197 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1159665703] [2021-11-07 01:25:04,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1159665703] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:25:04,197 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:25:04,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:25:04,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781374768] [2021-11-07 01:25:04,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:25:04,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:25:04,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:25:04,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:25:04,201 INFO L87 Difference]: Start difference. First operand 139 states and 205 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:04,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:25:04,384 INFO L93 Difference]: Finished difference Result 257 states and 383 transitions. [2021-11-07 01:25:04,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:25:04,385 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-11-07 01:25:04,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:25:04,387 INFO L225 Difference]: With dead ends: 257 [2021-11-07 01:25:04,388 INFO L226 Difference]: Without dead ends: 139 [2021-11-07 01:25:04,389 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:25:04,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-11-07 01:25:04,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2021-11-07 01:25:04,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 137 states have (on average 1.4744525547445255) internal successors, (202), 138 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:04,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 202 transitions. [2021-11-07 01:25:04,403 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 202 transitions. Word has length 33 [2021-11-07 01:25:04,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:25:04,403 INFO L470 AbstractCegarLoop]: Abstraction has 139 states and 202 transitions. [2021-11-07 01:25:04,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:04,404 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 202 transitions. [2021-11-07 01:25:04,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-07 01:25:04,406 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:25:04,406 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:25:04,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:25:04,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:25:04,634 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:25:04,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:25:04,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1160971526, now seen corresponding path program 1 times [2021-11-07 01:25:04,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:25:04,645 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [531424420] [2021-11-07 01:25:04,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:25:04,645 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:25:04,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:25:04,647 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:25:04,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:25:09,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:25:10,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 1792 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-07 01:25:10,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:25:11,192 INFO L354 Elim1Store]: treesize reduction 322, result has 0.3 percent of original size [2021-11-07 01:25:11,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 127 treesize of output 35 [2021-11-07 01:25:11,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:25:11,708 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:25:15,274 INFO L354 Elim1Store]: treesize reduction 1502, result has 4.5 percent of original size [2021-11-07 01:25:15,274 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 129 treesize of output 107 [2021-11-07 01:25:16,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:25:16,714 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:25:16,714 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [531424420] [2021-11-07 01:25:16,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [531424420] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:25:16,714 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:25:16,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 13 [2021-11-07 01:25:16,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275498584] [2021-11-07 01:25:16,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 01:25:16,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:25:16,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 01:25:16,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-11-07 01:25:16,718 INFO L87 Difference]: Start difference. First operand 139 states and 202 transitions. Second operand has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:51,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:25:51,809 INFO L93 Difference]: Finished difference Result 358 states and 529 transitions. [2021-11-07 01:25:51,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-07 01:25:51,810 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-11-07 01:25:51,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:25:51,813 INFO L225 Difference]: With dead ends: 358 [2021-11-07 01:25:51,813 INFO L226 Difference]: Without dead ends: 261 [2021-11-07 01:25:51,815 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2021-11-07 01:25:51,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2021-11-07 01:25:51,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 177. [2021-11-07 01:25:51,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 175 states have (on average 1.417142857142857) internal successors, (248), 176 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:51,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 248 transitions. [2021-11-07 01:25:51,833 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 248 transitions. Word has length 37 [2021-11-07 01:25:51,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:25:51,833 INFO L470 AbstractCegarLoop]: Abstraction has 177 states and 248 transitions. [2021-11-07 01:25:51,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:51,834 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 248 transitions. [2021-11-07 01:25:51,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 01:25:51,836 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:25:51,836 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:25:51,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:25:52,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:25:52,050 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:25:52,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:25:52,051 INFO L85 PathProgramCache]: Analyzing trace with hash -710871608, now seen corresponding path program 1 times [2021-11-07 01:25:52,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:25:52,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1310468245] [2021-11-07 01:25:52,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:25:52,060 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:25:52,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:25:52,061 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:25:52,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:25:56,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:25:56,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 1799 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-07 01:25:56,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:25:57,848 INFO L354 Elim1Store]: treesize reduction 322, result has 0.3 percent of original size [2021-11-07 01:25:57,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 127 treesize of output 35 [2021-11-07 01:25:58,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:25:58,319 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:26:01,786 INFO L354 Elim1Store]: treesize reduction 1502, result has 4.5 percent of original size [2021-11-07 01:26:01,787 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 129 treesize of output 107 [2021-11-07 01:26:03,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:26:03,018 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:26:03,019 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1310468245] [2021-11-07 01:26:03,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1310468245] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:26:03,019 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:26:03,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 13 [2021-11-07 01:26:03,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12092803] [2021-11-07 01:26:03,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 01:26:03,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:26:03,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 01:26:03,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-11-07 01:26:03,022 INFO L87 Difference]: Start difference. First operand 177 states and 248 transitions. Second operand has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:26:33,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:26:33,469 INFO L93 Difference]: Finished difference Result 333 states and 456 transitions. [2021-11-07 01:26:33,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-07 01:26:33,469 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-11-07 01:26:33,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:26:33,472 INFO L225 Difference]: With dead ends: 333 [2021-11-07 01:26:33,472 INFO L226 Difference]: Without dead ends: 283 [2021-11-07 01:26:33,473 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=146, Invalid=504, Unknown=0, NotChecked=0, Total=650 [2021-11-07 01:26:33,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2021-11-07 01:26:33,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 195. [2021-11-07 01:26:33,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 193 states have (on average 1.378238341968912) internal successors, (266), 194 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:26:33,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 266 transitions. [2021-11-07 01:26:33,498 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 266 transitions. Word has length 39 [2021-11-07 01:26:33,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:26:33,498 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 266 transitions. [2021-11-07 01:26:33,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:26:33,499 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 266 transitions. [2021-11-07 01:26:33,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-07 01:26:33,502 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:26:33,502 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:26:33,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:26:33,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:26:33,718 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:26:33,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:26:33,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1458771954, now seen corresponding path program 1 times [2021-11-07 01:26:33,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:26:33,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [899145922] [2021-11-07 01:26:33,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:26:33,722 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:26:33,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:26:33,723 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:26:33,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:26:38,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:26:38,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 1801 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-07 01:26:38,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:26:38,745 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 [2021-11-07 01:26:38,767 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 [2021-11-07 01:26:39,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:26:39,384 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:26:39,922 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 [2021-11-07 01:26:39,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:26:39,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:26:40,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:26:40,222 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:26:40,222 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [899145922] [2021-11-07 01:26:40,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [899145922] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:26:40,222 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:26:40,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 12] imperfect sequences [] total 17 [2021-11-07 01:26:40,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913831008] [2021-11-07 01:26:40,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-07 01:26:40,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:26:40,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-07 01:26:40,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2021-11-07 01:26:40,226 INFO L87 Difference]: Start difference. First operand 195 states and 266 transitions. Second operand has 17 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 17 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:27:02,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:27:02,631 INFO L93 Difference]: Finished difference Result 521 states and 685 transitions. [2021-11-07 01:27:02,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-07 01:27:02,632 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 17 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-11-07 01:27:02,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:27:02,634 INFO L225 Difference]: With dead ends: 521 [2021-11-07 01:27:02,635 INFO L226 Difference]: Without dead ends: 307 [2021-11-07 01:27:02,636 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=240, Invalid=882, Unknown=0, NotChecked=0, Total=1122 [2021-11-07 01:27:02,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2021-11-07 01:27:02,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 210. [2021-11-07 01:27:02,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 208 states have (on average 1.3221153846153846) internal successors, (275), 209 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:27:02,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 275 transitions. [2021-11-07 01:27:02,654 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 275 transitions. Word has length 41 [2021-11-07 01:27:02,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:27:02,654 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 275 transitions. [2021-11-07 01:27:02,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 17 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:27:02,655 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 275 transitions. [2021-11-07 01:27:02,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-07 01:27:02,657 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:27:02,657 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:27:02,697 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-07 01:27:02,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:27:02,870 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:27:02,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:27:02,871 INFO L85 PathProgramCache]: Analyzing trace with hash -481380642, now seen corresponding path program 1 times [2021-11-07 01:27:02,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:27:02,874 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2044173722] [2021-11-07 01:27:02,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:27:02,874 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:27:02,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:27:02,875 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:27:02,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:27:07,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:27:07,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 1819 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:27:07,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:27:07,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:27:07,942 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:27:08,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:27:08,421 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:27:08,421 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2044173722] [2021-11-07 01:27:08,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2044173722] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:27:08,421 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:27:08,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2021-11-07 01:27:08,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810104644] [2021-11-07 01:27:08,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:27:08,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:27:08,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:27:08,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:27:08,423 INFO L87 Difference]: Start difference. First operand 210 states and 275 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:27:22,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:27:22,773 INFO L93 Difference]: Finished difference Result 405 states and 529 transitions. [2021-11-07 01:27:22,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:27:22,775 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-11-07 01:27:22,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:27:22,777 INFO L225 Difference]: With dead ends: 405 [2021-11-07 01:27:22,777 INFO L226 Difference]: Without dead ends: 235 [2021-11-07 01:27:22,778 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:27:22,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2021-11-07 01:27:22,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 210. [2021-11-07 01:27:22,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 208 states have (on average 1.2980769230769231) internal successors, (270), 209 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:27:22,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 270 transitions. [2021-11-07 01:27:22,794 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 270 transitions. Word has length 46 [2021-11-07 01:27:22,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:27:22,795 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 270 transitions. [2021-11-07 01:27:22,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:27:22,795 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 270 transitions. [2021-11-07 01:27:22,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-07 01:27:22,797 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:27:22,797 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:27:22,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-07 01:27:23,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:27:23,023 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:27:23,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:27:23,023 INFO L85 PathProgramCache]: Analyzing trace with hash 904822752, now seen corresponding path program 1 times [2021-11-07 01:27:23,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:27:23,027 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1113643150] [2021-11-07 01:27:23,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:27:23,027 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:27:23,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:27:23,028 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:27:23,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b10667c0-f76d-45a2-9272-ce46d05b6335/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:27:27,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:27:27,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 1822 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-07 01:27:27,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:27:28,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:27:28,611 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:27:41,148 WARN L207 SmtUtils]: Spent 11.69 s on a formula simplification. DAG size of input: 523 DAG size of output: 269 [2021-11-07 01:27:41,150 INFO L354 Elim1Store]: treesize reduction 837, result has 46.8 percent of original size [2021-11-07 01:27:41,151 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