./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1baae56bade188786b6c048f5a5545dd6165460ea50e58a0310e4360c89d1838 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:46:10,662 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:46:10,664 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:46:10,692 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:46:10,692 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:46:10,693 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:46:10,695 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:46:10,697 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:46:10,699 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:46:10,700 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:46:10,701 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:46:10,703 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:46:10,703 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:46:10,704 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:46:10,706 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:46:10,707 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:46:10,708 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:46:10,710 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:46:10,712 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:46:10,722 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:46:10,727 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:46:10,729 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:46:10,731 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:46:10,732 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:46:10,736 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:46:10,743 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:46:10,746 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:46:10,747 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:46:10,748 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:46:10,750 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:46:10,752 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:46:10,753 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:46:10,754 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:46:10,755 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:46:10,757 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:46:10,758 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:46:10,758 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:46:10,759 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:46:10,759 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:46:10,760 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:46:10,761 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:46:10,763 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 23:46:10,794 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:46:10,795 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:46:10,795 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:46:10,796 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:46:10,796 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:46:10,796 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:46:10,796 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:46:10,796 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:46:10,797 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:46:10,797 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:46:10,797 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:46:10,797 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:46:10,797 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:46:10,798 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:46:10,798 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:46:10,798 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:46:10,799 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:46:10,799 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:46:10,799 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:46:10,799 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:46:10,799 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:46:10,799 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:46:10,800 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:46:10,800 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:46:10,800 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:46:10,800 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:46:10,800 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:46:10,801 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:46:10,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:46:10,801 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:46:10,801 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:46:10,801 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:46:10,802 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:46:10,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:46:10,802 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:46:10,802 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:46:10,802 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:46:10,803 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_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1baae56bade188786b6c048f5a5545dd6165460ea50e58a0310e4360c89d1838 [2021-11-12 23:46:11,029 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:46:11,054 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:46:11,057 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:46:11,058 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:46:11,060 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:46:11,061 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i [2021-11-12 23:46:11,148 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/data/78da60468/82754abf3e074d23b62de10a617dc240/FLAG14858d447 [2021-11-12 23:46:11,900 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:46:11,901 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i [2021-11-12 23:46:11,963 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/data/78da60468/82754abf3e074d23b62de10a617dc240/FLAG14858d447 [2021-11-12 23:46:12,464 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/data/78da60468/82754abf3e074d23b62de10a617dc240 [2021-11-12 23:46:12,466 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:46:12,467 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:46:12,470 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:46:12,470 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:46:12,473 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:46:12,474 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:46:12" (1/1) ... [2021-11-12 23:46:12,479 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48529e6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:46:12, skipping insertion in model container [2021-11-12 23:46:12,479 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:46:12" (1/1) ... [2021-11-12 23:46:12,486 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:46:12,611 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:46:12,924 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_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i[4497,4510] [2021-11-12 23:46:12,931 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_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i[4557,4570] [2021-11-12 23:46:12,954 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 23:46:12,959 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 23:46:13,829 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 23:46:13,901 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:13,902 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:13,902 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:13,903 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:13,904 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:13,918 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:13,919 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:13,920 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:13,921 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:14,316 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 23:46:14,318 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 23:46:14,318 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 23:46:14,326 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 23:46:14,328 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 23:46:14,329 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 23:46:14,330 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 23:46:14,332 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 23:46:14,334 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 23:46:14,335 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 23:46:14,495 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:14,495 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:14,544 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:46:14,575 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-12 23:46:14,576 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@34b35de3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:46:14, skipping insertion in model container [2021-11-12 23:46:14,576 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:46:14,577 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 23:46:14,580 INFO L158 Benchmark]: Toolchain (without parser) took 2110.51ms. Allocated memory is still 119.5MB. Free memory was 78.7MB in the beginning and 57.2MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-11-12 23:46:14,581 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 83.9MB. Free memory is still 40.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:46:14,582 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2106.52ms. Allocated memory is still 119.5MB. Free memory was 78.5MB in the beginning and 57.8MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-11-12 23:46:14,584 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 83.9MB. Free memory is still 40.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2106.52ms. Allocated memory is still 119.5MB. Free memory was 78.5MB in the beginning and 57.8MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2886]: 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_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1baae56bade188786b6c048f5a5545dd6165460ea50e58a0310e4360c89d1838 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:46:16,791 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:46:16,795 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:46:16,835 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:46:16,836 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:46:16,837 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:46:16,838 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:46:16,841 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:46:16,843 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:46:16,844 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:46:16,845 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:46:16,847 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:46:16,847 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:46:16,848 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:46:16,850 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:46:16,852 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:46:16,853 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:46:16,854 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:46:16,856 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:46:16,858 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:46:16,861 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:46:16,862 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:46:16,864 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:46:16,865 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:46:16,869 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:46:16,869 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:46:16,870 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:46:16,871 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:46:16,871 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:46:16,872 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:46:16,873 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:46:16,874 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:46:16,874 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:46:16,875 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:46:16,877 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:46:16,877 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:46:16,878 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:46:16,878 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:46:16,887 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:46:16,889 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:46:16,891 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:46:16,892 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 23:46:16,937 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:46:16,937 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:46:16,938 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:46:16,938 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:46:16,939 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:46:16,939 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:46:16,939 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:46:16,939 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:46:16,939 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:46:16,940 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:46:16,940 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:46:16,941 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:46:16,941 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:46:16,941 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:46:16,941 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:46:16,941 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:46:16,942 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 23:46:16,942 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 23:46:16,942 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:46:16,944 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:46:16,944 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:46:16,944 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:46:16,945 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 23:46:16,945 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:46:16,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:46:16,948 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:46:16,948 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:46:16,948 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:46:16,949 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 23:46:16,949 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 23:46:16,949 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:46:16,949 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:46:16,950 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:46:16,950 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_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1baae56bade188786b6c048f5a5545dd6165460ea50e58a0310e4360c89d1838 [2021-11-12 23:46:17,291 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:46:17,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:46:17,330 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:46:17,332 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:46:17,332 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:46:17,334 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i [2021-11-12 23:46:17,409 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/data/56bd8cc28/0f0d02d80f0140ee868808651daf4103/FLAG44b7b9fa4 [2021-11-12 23:46:18,299 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:46:18,299 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i [2021-11-12 23:46:18,346 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/data/56bd8cc28/0f0d02d80f0140ee868808651daf4103/FLAG44b7b9fa4 [2021-11-12 23:46:18,764 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/data/56bd8cc28/0f0d02d80f0140ee868808651daf4103 [2021-11-12 23:46:18,766 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:46:18,768 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:46:18,783 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:46:18,783 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:46:18,785 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:46:18,786 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:46:18" (1/1) ... [2021-11-12 23:46:18,786 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e49026 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:46:18, skipping insertion in model container [2021-11-12 23:46:18,787 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:46:18" (1/1) ... [2021-11-12 23:46:18,793 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:46:18,915 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:46:19,243 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_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i[4497,4510] [2021-11-12 23:46:19,251 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_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i[4557,4570] [2021-11-12 23:46:19,288 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 23:46:19,296 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 23:46:20,575 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 23:46:20,670 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:20,671 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:20,671 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:20,672 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:20,673 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:20,701 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:20,702 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:20,704 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:20,704 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:21,059 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 23:46:21,060 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 23:46:21,061 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 23:46:21,063 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 23:46:21,064 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 23:46:21,065 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 23:46:21,066 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 23:46:21,067 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 23:46:21,068 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 23:46:21,068 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 23:46:21,206 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:21,207 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:21,258 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:46:21,317 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 23:46:21,383 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:46:21,387 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_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i[4497,4510] [2021-11-12 23:46:21,388 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_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i[4557,4570] [2021-11-12 23:46:21,389 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 23:46:21,390 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 23:46:21,452 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 23:46:21,468 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:21,469 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:21,469 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:21,470 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:21,478 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:21,485 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:21,488 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:21,489 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:21,490 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:21,550 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 23:46:21,551 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 23:46:21,552 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 23:46:21,554 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 23:46:21,555 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 23:46:21,559 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 23:46:21,560 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 23:46:21,561 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 23:46:21,561 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 23:46:21,562 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 23:46:21,634 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:21,635 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:21,670 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:46:21,689 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:46:21,703 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_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i[4497,4510] [2021-11-12 23:46:21,703 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_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/sv-benchmarks/c/aws-c-common/aws_priority_queue_size_harness.i[4557,4570] [2021-11-12 23:46:21,704 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 23:46:21,705 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 23:46:21,733 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 23:46:21,764 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:21,764 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:21,765 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:21,765 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:21,766 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:21,772 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:21,775 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:21,776 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:21,777 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:21,815 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 23:46:21,816 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 23:46:21,817 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 23:46:21,818 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 23:46:21,819 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 23:46:21,819 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 23:46:21,820 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 23:46:21,821 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 23:46:21,821 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 23:46:21,822 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 23:46:21,870 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:21,871 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:21,895 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:46:22,369 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:46:22,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:46:22 WrapperNode [2021-11-12 23:46:22,380 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:46:22,381 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:46:22,381 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:46:22,382 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:46:22,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:46:22" (1/1) ... [2021-11-12 23:46:22,498 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:46:22" (1/1) ... [2021-11-12 23:46:22,578 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:46:22,591 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:46:22,592 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:46:22,592 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:46:22,601 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:46:22" (1/1) ... [2021-11-12 23:46:22,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:46:22" (1/1) ... [2021-11-12 23:46:22,620 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:46:22" (1/1) ... [2021-11-12 23:46:22,621 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:46:22" (1/1) ... [2021-11-12 23:46:22,693 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:46:22" (1/1) ... [2021-11-12 23:46:22,698 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:46:22" (1/1) ... [2021-11-12 23:46:22,730 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:46:22" (1/1) ... [2021-11-12 23:46:22,751 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:46:22,753 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:46:22,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:46:22,754 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:46:22,754 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:46:22" (1/1) ... [2021-11-12 23:46:22,782 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:46:22,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:46:22,806 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:46:22,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:46:22,896 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2021-11-12 23:46:22,897 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2021-11-12 23:46:22,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:46:22,897 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2021-11-12 23:46:22,897 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2021-11-12 23:46:22,897 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2021-11-12 23:46:22,898 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2021-11-12 23:46:22,898 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-12 23:46:22,899 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-12 23:46:22,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 23:46:22,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 23:46:22,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-12 23:46:22,900 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-11-12 23:46:22,900 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-11-12 23:46:22,900 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-12 23:46:22,901 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-12 23:46:22,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 23:46:22,901 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2021-11-12 23:46:22,901 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2021-11-12 23:46:22,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 23:46:22,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:46:22,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:46:22,902 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-12 23:46:22,902 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-12 23:46:22,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 23:46:22,903 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-11-12 23:46:22,903 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-11-12 23:46:22,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 23:46:22,903 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-11-12 23:46:22,903 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-11-12 23:46:22,903 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2021-11-12 23:46:22,904 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2021-11-12 23:46:22,904 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2021-11-12 23:46:22,904 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2021-11-12 23:46:22,904 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-12 23:46:22,905 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-12 23:46:22,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:46:22,905 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-12 23:46:22,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 23:46:22,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 23:46:22,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 23:46:22,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 23:46:22,909 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-12 23:46:22,909 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-12 23:46:22,910 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-11-12 23:46:22,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-11-12 23:46:22,911 INFO L130 BoogieDeclarations]: Found specification of procedure assert_array_list_equivalence [2021-11-12 23:46:22,911 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_array_list_equivalence [2021-11-12 23:46:22,916 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2021-11-12 23:46:22,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2021-11-12 23:46:36,117 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:46:36,118 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-12 23:46:36,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:46:36 BoogieIcfgContainer [2021-11-12 23:46:36,123 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:46:36,125 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:46:36,125 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:46:36,128 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:46:36,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:46:18" (1/3) ... [2021-11-12 23:46:36,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@92fdf28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:46:36, skipping insertion in model container [2021-11-12 23:46:36,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:46:22" (2/3) ... [2021-11-12 23:46:36,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@92fdf28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:46:36, skipping insertion in model container [2021-11-12 23:46:36,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:46:36" (3/3) ... [2021-11-12 23:46:36,131 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_size_harness.i [2021-11-12 23:46:36,137 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:46:36,137 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 23:46:36,211 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:46:36,225 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 23:46:36,226 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 23:46:36,251 INFO L276 IsEmpty]: Start isEmpty. Operand has 171 states, 113 states have (on average 1.2300884955752212) internal successors, (139), 114 states have internal predecessors, (139), 39 states have call successors, (39), 17 states have call predecessors, (39), 17 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2021-11-12 23:46:36,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-12 23:46:36,263 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:46:36,265 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:46:36,265 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:46:36,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:46:36,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1923135121, now seen corresponding path program 1 times [2021-11-12 23:46:36,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:46:36,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [779458200] [2021-11-12 23:46:36,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:46:36,293 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:46:36,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:46:36,297 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:46:36,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 23:46:40,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:46:40,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 1771 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-12 23:46:40,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:46:40,584 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2021-11-12 23:46:40,585 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:46:40,903 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2021-11-12 23:46:40,903 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:46:40,904 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [779458200] [2021-11-12 23:46:40,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [779458200] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:46:40,904 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:46:40,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2021-11-12 23:46:40,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951677259] [2021-11-12 23:46:40,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:46:40,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 23:46:40,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:46:40,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 23:46:40,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 23:46:40,959 INFO L87 Difference]: Start difference. First operand has 171 states, 113 states have (on average 1.2300884955752212) internal successors, (139), 114 states have internal predecessors, (139), 39 states have call successors, (39), 17 states have call predecessors, (39), 17 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-12 23:46:40,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:46:41,000 INFO L93 Difference]: Finished difference Result 331 states and 448 transitions. [2021-11-12 23:46:41,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 23:46:41,002 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 107 [2021-11-12 23:46:41,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:46:41,013 INFO L225 Difference]: With dead ends: 331 [2021-11-12 23:46:41,015 INFO L226 Difference]: Without dead ends: 166 [2021-11-12 23:46:41,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 23:46:41,025 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.42ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-12 23:46:41,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 2.42ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-12 23:46:41,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-11-12 23:46:41,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2021-11-12 23:46:41,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 109 states have (on average 1.2110091743119267) internal successors, (132), 110 states have internal predecessors, (132), 39 states have call successors, (39), 17 states have call predecessors, (39), 17 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2021-11-12 23:46:41,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 209 transitions. [2021-11-12 23:46:41,091 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 209 transitions. Word has length 107 [2021-11-12 23:46:41,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:46:41,092 INFO L470 AbstractCegarLoop]: Abstraction has 166 states and 209 transitions. [2021-11-12 23:46:41,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-12 23:46:41,093 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 209 transitions. [2021-11-12 23:46:41,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-12 23:46:41,098 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:46:41,098 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:46:41,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 23:46:41,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:46:41,315 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:46:41,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:46:41,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1898390481, now seen corresponding path program 1 times [2021-11-12 23:46:41,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:46:41,319 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [152467672] [2021-11-12 23:46:41,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:46:41,319 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:46:41,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:46:41,321 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:46:41,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 23:46:44,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:46:45,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 1771 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:46:45,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:46:45,615 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-12 23:46:45,616 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:46:46,121 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-11-12 23:46:46,121 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:46:46,121 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [152467672] [2021-11-12 23:46:46,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [152467672] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:46:46,121 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:46:46,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2021-11-12 23:46:46,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050061712] [2021-11-12 23:46:46,122 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:46:46,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:46:46,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:46:46,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:46:46,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:46:46,124 INFO L87 Difference]: Start difference. First operand 166 states and 209 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-12 23:46:46,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:46:46,396 INFO L93 Difference]: Finished difference Result 290 states and 367 transitions. [2021-11-12 23:46:46,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:46:46,397 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 107 [2021-11-12 23:46:46,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:46:46,401 INFO L225 Difference]: With dead ends: 290 [2021-11-12 23:46:46,401 INFO L226 Difference]: Without dead ends: 166 [2021-11-12 23:46:46,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:46:46,403 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 56 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 169.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.81ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 212.26ms IncrementalHoareTripleChecker+Time [2021-11-12 23:46:46,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 574 Invalid, 30 Unknown, 0 Unchecked, 6.81ms Time], IncrementalHoareTripleChecker [4 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 212.26ms Time] [2021-11-12 23:46:46,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-11-12 23:46:46,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2021-11-12 23:46:46,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 109 states have (on average 1.201834862385321) internal successors, (131), 110 states have internal predecessors, (131), 39 states have call successors, (39), 17 states have call predecessors, (39), 17 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2021-11-12 23:46:46,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 208 transitions. [2021-11-12 23:46:46,422 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 208 transitions. Word has length 107 [2021-11-12 23:46:46,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:46:46,423 INFO L470 AbstractCegarLoop]: Abstraction has 166 states and 208 transitions. [2021-11-12 23:46:46,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-12 23:46:46,423 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 208 transitions. [2021-11-12 23:46:46,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-12 23:46:46,427 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:46:46,427 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:46:46,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 23:46:46,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:46:46,641 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:46:46,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:46:46,641 INFO L85 PathProgramCache]: Analyzing trace with hash 413511437, now seen corresponding path program 1 times [2021-11-12 23:46:46,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:46:46,644 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [693578513] [2021-11-12 23:46:46,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:46:46,644 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:46:46,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:46:46,645 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:46:46,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 23:46:50,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:46:50,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 1801 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 23:46:50,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:46:50,973 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-12 23:46:50,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:46:51,661 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2021-11-12 23:46:51,661 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:46:51,662 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [693578513] [2021-11-12 23:46:51,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [693578513] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:46:51,662 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:46:51,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 9 [2021-11-12 23:46:51,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558813348] [2021-11-12 23:46:51,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:46:51,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 23:46:51,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:46:51,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 23:46:51,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-12 23:46:51,664 INFO L87 Difference]: Start difference. First operand 166 states and 208 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-11-12 23:46:52,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:46:52,357 INFO L93 Difference]: Finished difference Result 309 states and 396 transitions. [2021-11-12 23:46:52,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 23:46:52,363 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 115 [2021-11-12 23:46:52,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:46:52,366 INFO L225 Difference]: With dead ends: 309 [2021-11-12 23:46:52,367 INFO L226 Difference]: Without dead ends: 168 [2021-11-12 23:46:52,372 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:46:52,373 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 81 mSDsluCounter, 884 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 541.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 1075 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.08ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 605.82ms IncrementalHoareTripleChecker+Time [2021-11-12 23:46:52,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 1075 Invalid, 123 Unknown, 0 Unchecked, 8.08ms Time], IncrementalHoareTripleChecker [7 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 605.82ms Time] [2021-11-12 23:46:52,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2021-11-12 23:46:52,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2021-11-12 23:46:52,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 110 states have (on average 1.2) internal successors, (132), 112 states have internal predecessors, (132), 39 states have call successors, (39), 17 states have call predecessors, (39), 18 states have return successors, (41), 38 states have call predecessors, (41), 38 states have call successors, (41) [2021-11-12 23:46:52,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 212 transitions. [2021-11-12 23:46:52,394 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 212 transitions. Word has length 115 [2021-11-12 23:46:52,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:46:52,394 INFO L470 AbstractCegarLoop]: Abstraction has 168 states and 212 transitions. [2021-11-12 23:46:52,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-11-12 23:46:52,395 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 212 transitions. [2021-11-12 23:46:52,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-12 23:46:52,397 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:46:52,398 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:46:52,439 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-12 23:46:52,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:46:52,616 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:46:52,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:46:52,617 INFO L85 PathProgramCache]: Analyzing trace with hash -445935835, now seen corresponding path program 1 times [2021-11-12 23:46:52,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:46:52,620 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1761651024] [2021-11-12 23:46:52,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:46:52,620 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:46:52,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:46:52,621 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:46:52,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 23:46:56,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:46:56,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 1878 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:46:56,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:46:57,071 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-11-12 23:46:57,071 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:46:57,448 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2021-11-12 23:46:57,449 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:46:57,449 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1761651024] [2021-11-12 23:46:57,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1761651024] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:46:57,449 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:46:57,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2021-11-12 23:46:57,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045909416] [2021-11-12 23:46:57,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:46:57,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:46:57,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:46:57,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:46:57,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:46:57,452 INFO L87 Difference]: Start difference. First operand 168 states and 212 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-12 23:46:57,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:46:57,577 INFO L93 Difference]: Finished difference Result 297 states and 384 transitions. [2021-11-12 23:46:57,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:46:57,579 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 130 [2021-11-12 23:46:57,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:46:57,583 INFO L225 Difference]: With dead ends: 297 [2021-11-12 23:46:57,584 INFO L226 Difference]: Without dead ends: 173 [2021-11-12 23:46:57,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:46:57,587 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 10 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 79.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.86ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 90.43ms IncrementalHoareTripleChecker+Time [2021-11-12 23:46:57,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 611 Invalid, 13 Unknown, 0 Unchecked, 3.86ms Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 90.43ms Time] [2021-11-12 23:46:57,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2021-11-12 23:46:57,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 170. [2021-11-12 23:46:57,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 112 states have (on average 1.1964285714285714) internal successors, (134), 114 states have internal predecessors, (134), 39 states have call successors, (39), 17 states have call predecessors, (39), 18 states have return successors, (41), 38 states have call predecessors, (41), 38 states have call successors, (41) [2021-11-12 23:46:57,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 214 transitions. [2021-11-12 23:46:57,619 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 214 transitions. Word has length 130 [2021-11-12 23:46:57,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:46:57,620 INFO L470 AbstractCegarLoop]: Abstraction has 170 states and 214 transitions. [2021-11-12 23:46:57,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-12 23:46:57,620 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 214 transitions. [2021-11-12 23:46:57,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-12 23:46:57,623 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:46:57,623 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:46:57,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 23:46:57,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:46:57,839 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:46:57,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:46:57,840 INFO L85 PathProgramCache]: Analyzing trace with hash -879664921, now seen corresponding path program 1 times [2021-11-12 23:46:57,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:46:57,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1928357310] [2021-11-12 23:46:57,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:46:57,843 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:46:57,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:46:57,843 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:46:57,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 23:47:01,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:47:01,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 1881 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 23:47:01,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:47:02,410 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-12 23:47:02,410 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:47:02,940 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2021-11-12 23:47:02,940 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:47:02,940 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1928357310] [2021-11-12 23:47:02,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1928357310] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:47:02,940 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:47:02,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-12 23:47:02,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923866095] [2021-11-12 23:47:02,941 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:47:02,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:47:02,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:47:02,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:47:02,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:47:02,943 INFO L87 Difference]: Start difference. First operand 170 states and 214 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 5 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2021-11-12 23:47:03,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:47:03,299 INFO L93 Difference]: Finished difference Result 299 states and 378 transitions. [2021-11-12 23:47:03,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:47:03,301 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 5 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) Word has length 130 [2021-11-12 23:47:03,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:47:03,304 INFO L225 Difference]: With dead ends: 299 [2021-11-12 23:47:03,304 INFO L226 Difference]: Without dead ends: 170 [2021-11-12 23:47:03,305 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:47:03,306 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 100 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 238.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 726 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.54ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 296.39ms IncrementalHoareTripleChecker+Time [2021-11-12 23:47:03,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 726 Invalid, 61 Unknown, 0 Unchecked, 4.54ms Time], IncrementalHoareTripleChecker [9 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 296.39ms Time] [2021-11-12 23:47:03,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2021-11-12 23:47:03,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2021-11-12 23:47:03,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 112 states have (on average 1.1875) internal successors, (133), 114 states have internal predecessors, (133), 39 states have call successors, (39), 17 states have call predecessors, (39), 18 states have return successors, (41), 38 states have call predecessors, (41), 38 states have call successors, (41) [2021-11-12 23:47:03,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 213 transitions. [2021-11-12 23:47:03,320 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 213 transitions. Word has length 130 [2021-11-12 23:47:03,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:47:03,321 INFO L470 AbstractCegarLoop]: Abstraction has 170 states and 213 transitions. [2021-11-12 23:47:03,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 5 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2021-11-12 23:47:03,321 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 213 transitions. [2021-11-12 23:47:03,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-11-12 23:47:03,324 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:47:03,324 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:47:03,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-12 23:47:03,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:47:03,543 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:47:03,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:47:03,543 INFO L85 PathProgramCache]: Analyzing trace with hash 391202648, now seen corresponding path program 1 times [2021-11-12 23:47:03,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:47:03,546 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1822873680] [2021-11-12 23:47:03,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:47:03,547 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:47:03,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:47:03,547 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:47:03,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 23:47:07,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:47:07,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 1929 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 23:47:07,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:47:08,319 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-11-12 23:47:08,319 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:47:09,153 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2021-11-12 23:47:09,153 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:47:09,153 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1822873680] [2021-11-12 23:47:09,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1822873680] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:47:09,154 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:47:09,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 11 [2021-11-12 23:47:09,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371475809] [2021-11-12 23:47:09,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:47:09,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:47:09,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:47:09,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:47:09,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:47:09,156 INFO L87 Difference]: Start difference. First operand 170 states and 213 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 5 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) [2021-11-12 23:47:10,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:47:10,038 INFO L93 Difference]: Finished difference Result 312 states and 395 transitions. [2021-11-12 23:47:10,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 23:47:10,047 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 5 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) Word has length 146 [2021-11-12 23:47:10,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:47:10,050 INFO L225 Difference]: With dead ends: 312 [2021-11-12 23:47:10,050 INFO L226 Difference]: Without dead ends: 170 [2021-11-12 23:47:10,051 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2021-11-12 23:47:10,052 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 104 mSDsluCounter, 1017 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 659.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 1200 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.63ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 770.21ms IncrementalHoareTripleChecker+Time [2021-11-12 23:47:10,052 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 1200 Invalid, 172 Unknown, 0 Unchecked, 5.63ms Time], IncrementalHoareTripleChecker [10 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 770.21ms Time] [2021-11-12 23:47:10,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2021-11-12 23:47:10,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2021-11-12 23:47:10,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 112 states have (on average 1.1875) internal successors, (133), 114 states have internal predecessors, (133), 39 states have call successors, (39), 17 states have call predecessors, (39), 18 states have return successors, (40), 38 states have call predecessors, (40), 38 states have call successors, (40) [2021-11-12 23:47:10,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 212 transitions. [2021-11-12 23:47:10,075 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 212 transitions. Word has length 146 [2021-11-12 23:47:10,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:47:10,077 INFO L470 AbstractCegarLoop]: Abstraction has 170 states and 212 transitions. [2021-11-12 23:47:10,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 5 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) [2021-11-12 23:47:10,077 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 212 transitions. [2021-11-12 23:47:10,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-12 23:47:10,082 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:47:10,083 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:47:10,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 23:47:10,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:47:10,303 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:47:10,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:47:10,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1071073244, now seen corresponding path program 2 times [2021-11-12 23:47:10,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:47:10,306 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [875225342] [2021-11-12 23:47:10,306 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 23:47:10,306 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:47:10,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:47:10,307 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:47:10,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f203f6dd-50cf-4a81-8fe8-3d16655d1a8c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process