./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_remove_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_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/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_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/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_61889f13-e45c-4870-9008-0b92f3d5ca4d/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 97e90b5866c6e9df01c589395fdbbe46254bc553e4330f2a669b393b022bbd71 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:28:06,817 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:28:06,819 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:28:06,874 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:28:06,875 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:28:06,877 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:28:06,881 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:28:06,886 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:28:06,889 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:28:06,897 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:28:06,898 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:28:06,900 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:28:06,901 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:28:06,904 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:28:06,909 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:28:06,917 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:28:06,918 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:28:06,919 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:28:06,921 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:28:06,924 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:28:06,926 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:28:06,927 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:28:06,929 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:28:06,930 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:28:06,934 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:28:06,934 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:28:06,935 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:28:06,936 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:28:06,937 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:28:06,938 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:28:06,938 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:28:06,939 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:28:06,940 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:28:06,941 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:28:06,942 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:28:06,943 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:28:06,944 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:28:06,944 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:28:06,945 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:28:06,946 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:28:06,947 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:28:06,948 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-13 02:28:06,978 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:28:06,978 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:28:06,979 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:28:06,979 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:28:06,980 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:28:06,980 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:28:06,980 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:28:06,980 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 02:28:06,980 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:28:06,981 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:28:06,981 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 02:28:06,981 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 02:28:06,981 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:28:06,981 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 02:28:06,982 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 02:28:06,982 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 02:28:06,983 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:28:06,983 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 02:28:06,983 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:28:06,983 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 02:28:06,983 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:28:06,984 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 02:28:06,984 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:28:06,984 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 02:28:06,984 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:28:06,984 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 02:28:06,985 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:28:06,985 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:28:06,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:28:06,985 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:28:06,986 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:28:06,986 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 02:28:06,986 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 02:28:06,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 02:28:06,987 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 02:28:06,987 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:28:06,987 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:28:06,987 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_61889f13-e45c-4870-9008-0b92f3d5ca4d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97e90b5866c6e9df01c589395fdbbe46254bc553e4330f2a669b393b022bbd71 [2021-11-13 02:28:07,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:28:07,260 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:28:07,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:28:07,264 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:28:07,265 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:28:07,267 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness.i [2021-11-13 02:28:07,357 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/data/33dbd806a/625be48ca0964a828dc1aae58f85e38d/FLAG6043dacd9 [2021-11-13 02:28:08,362 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:28:08,363 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness.i [2021-11-13 02:28:08,415 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/data/33dbd806a/625be48ca0964a828dc1aae58f85e38d/FLAG6043dacd9 [2021-11-13 02:28:08,738 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/data/33dbd806a/625be48ca0964a828dc1aae58f85e38d [2021-11-13 02:28:08,741 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:28:08,743 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:28:08,745 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:28:08,745 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:28:08,748 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:28:08,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:28:08" (1/1) ... [2021-11-13 02:28:08,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@334d7447 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:08, skipping insertion in model container [2021-11-13 02:28:08,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:28:08" (1/1) ... [2021-11-13 02:28:08,757 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:28:08,896 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:28:09,244 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_61889f13-e45c-4870-9008-0b92f3d5ca4d/sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness.i[4495,4508] [2021-11-13 02:28:09,253 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_61889f13-e45c-4870-9008-0b92f3d5ca4d/sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness.i[4555,4568] [2021-11-13 02:28:09,294 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 02:28:09,304 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 02:28:10,509 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:10,510 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:10,510 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:10,511 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:10,513 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:10,529 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:10,530 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:10,532 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:10,533 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:10,535 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:10,537 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:10,538 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:10,538 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:11,102 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 02:28:11,104 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 02:28:11,105 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 02:28:11,107 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 02:28:11,109 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 02:28:11,110 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 02:28:11,111 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 02:28:11,112 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 02:28:11,113 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 02:28:11,113 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 02:28:11,369 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 02:28:11,765 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:11,766 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:11,794 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:11,795 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:11,803 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:11,803 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:11,822 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:11,823 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:11,824 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:11,825 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:11,825 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:11,826 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:11,827 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:11,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:28:11,911 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) [2021-11-13 02:28:11,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@39a75d0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:11, skipping insertion in model container [2021-11-13 02:28:11,912 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:28:11,913 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-13 02:28:11,916 INFO L158 Benchmark]: Toolchain (without parser) took 3170.67ms. Allocated memory was 92.3MB in the beginning and 115.3MB in the end (delta: 23.1MB). Free memory was 49.9MB in the beginning and 51.2MB in the end (delta: -1.3MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. [2021-11-13 02:28:11,916 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 92.3MB. Free memory is still 47.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 02:28:11,919 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3167.79ms. Allocated memory was 92.3MB in the beginning and 115.3MB in the end (delta: 23.1MB). Free memory was 49.7MB in the beginning and 51.2MB in the end (delta: -1.5MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. [2021-11-13 02:28:11,921 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 92.3MB. Free memory is still 47.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3167.79ms. Allocated memory was 92.3MB in the beginning and 115.3MB in the end (delta: 23.1MB). Free memory was 49.7MB in the beginning and 51.2MB in the end (delta: -1.5MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7051]: 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_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/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_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/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_61889f13-e45c-4870-9008-0b92f3d5ca4d/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 97e90b5866c6e9df01c589395fdbbe46254bc553e4330f2a669b393b022bbd71 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:28:14,538 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:28:14,542 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:28:14,611 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:28:14,612 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:28:14,616 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:28:14,619 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:28:14,623 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:28:14,627 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:28:14,637 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:28:14,639 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:28:14,641 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:28:14,642 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:28:14,646 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:28:14,649 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:28:14,656 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:28:14,658 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:28:14,660 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:28:14,663 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:28:14,671 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:28:14,673 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:28:14,675 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:28:14,679 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:28:14,681 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:28:14,694 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:28:14,694 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:28:14,695 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:28:14,697 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:28:14,698 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:28:14,700 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:28:14,700 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:28:14,701 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:28:14,704 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:28:14,705 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:28:14,707 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:28:14,707 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:28:14,708 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:28:14,709 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:28:14,709 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:28:14,711 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:28:14,712 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:28:14,713 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-13 02:28:14,764 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:28:14,764 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:28:14,766 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:28:14,766 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:28:14,766 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:28:14,766 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:28:14,767 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:28:14,767 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:28:14,767 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:28:14,767 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:28:14,770 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:28:14,770 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:28:14,771 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 02:28:14,771 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:28:14,771 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 02:28:14,771 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:28:14,771 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 02:28:14,772 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 02:28:14,772 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 02:28:14,772 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:28:14,772 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 02:28:14,773 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:28:14,773 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 02:28:14,773 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:28:14,773 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:28:14,774 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:28:14,774 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:28:14,774 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 02:28:14,774 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 02:28:14,774 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 02:28:14,775 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 02:28:14,775 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:28:14,775 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:28:14,775 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_61889f13-e45c-4870-9008-0b92f3d5ca4d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97e90b5866c6e9df01c589395fdbbe46254bc553e4330f2a669b393b022bbd71 [2021-11-13 02:28:15,208 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:28:15,237 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:28:15,240 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:28:15,242 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:28:15,242 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:28:15,244 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness.i [2021-11-13 02:28:15,326 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/data/e64448421/a5cc85e8889c4d1a8c26bb3d0195763f/FLAG9ef87f5ed [2021-11-13 02:28:16,379 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:28:16,380 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness.i [2021-11-13 02:28:16,426 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/data/e64448421/a5cc85e8889c4d1a8c26bb3d0195763f/FLAG9ef87f5ed [2021-11-13 02:28:16,772 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/data/e64448421/a5cc85e8889c4d1a8c26bb3d0195763f [2021-11-13 02:28:16,775 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:28:16,777 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:28:16,778 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:28:16,778 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:28:16,783 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:28:16,785 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:28:16" (1/1) ... [2021-11-13 02:28:16,786 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@294ea830 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:16, skipping insertion in model container [2021-11-13 02:28:16,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:28:16" (1/1) ... [2021-11-13 02:28:16,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:28:16,964 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:28:17,325 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_61889f13-e45c-4870-9008-0b92f3d5ca4d/sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness.i[4495,4508] [2021-11-13 02:28:17,332 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_61889f13-e45c-4870-9008-0b92f3d5ca4d/sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness.i[4555,4568] [2021-11-13 02:28:17,368 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 02:28:17,376 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 02:28:18,584 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:18,584 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:18,585 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:18,586 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:18,587 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:18,603 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:18,604 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:18,606 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:18,607 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:18,609 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:18,611 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:18,612 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:18,612 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:19,148 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 02:28:19,150 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 02:28:19,151 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 02:28:19,153 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 02:28:19,154 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 02:28:19,156 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 02:28:19,156 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 02:28:19,157 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 02:28:19,158 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 02:28:19,159 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 02:28:19,391 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 02:28:19,913 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:19,913 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:19,959 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:19,962 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:19,971 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:19,972 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:19,993 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:19,994 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:19,995 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:19,995 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:19,996 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:19,996 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:19,997 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:20,039 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:28:20,102 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-13 02:28:20,224 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:28:20,231 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_61889f13-e45c-4870-9008-0b92f3d5ca4d/sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness.i[4495,4508] [2021-11-13 02:28:20,232 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_61889f13-e45c-4870-9008-0b92f3d5ca4d/sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness.i[4555,4568] [2021-11-13 02:28:20,233 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 02:28:20,234 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 02:28:20,296 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:20,296 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:20,296 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:20,297 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:20,298 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:20,309 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:20,310 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:20,311 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:20,312 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:20,313 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:20,314 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:20,314 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:20,315 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:20,363 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 02:28:20,364 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 02:28:20,366 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 02:28:20,367 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 02:28:20,368 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 02:28:20,369 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 02:28:20,370 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 02:28:20,370 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 02:28:20,371 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 02:28:20,371 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 02:28:20,419 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 02:28:20,548 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:20,549 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:20,561 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:20,562 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:20,565 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:20,566 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:20,582 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:20,583 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:20,584 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:20,584 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:20,584 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:20,585 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:20,586 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:20,631 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:28:20,674 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 02:28:20,699 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_61889f13-e45c-4870-9008-0b92f3d5ca4d/sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness.i[4495,4508] [2021-11-13 02:28:20,700 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_61889f13-e45c-4870-9008-0b92f3d5ca4d/sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness.i[4555,4568] [2021-11-13 02:28:20,702 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 02:28:20,702 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 02:28:20,736 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:20,737 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:20,738 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:20,738 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:20,739 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:20,746 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:20,747 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:20,747 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:20,748 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:20,750 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:20,751 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:20,751 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:20,752 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:20,786 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 02:28:20,789 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 02:28:20,789 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 02:28:20,790 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 02:28:20,791 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 02:28:20,791 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 02:28:20,792 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 02:28:20,792 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 02:28:20,793 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 02:28:20,794 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 02:28:20,816 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 02:28:20,934 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:20,934 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:20,948 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:20,949 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:20,983 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:20,983 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:21,010 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:21,011 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:21,011 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:21,012 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:21,012 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:21,013 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:21,013 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:28:21,066 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:28:21,396 INFO L208 MainTranslator]: Completed translation [2021-11-13 02:28:21,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:21 WrapperNode [2021-11-13 02:28:21,397 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:28:21,398 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 02:28:21,399 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 02:28:21,399 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 02:28:21,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:21" (1/1) ... [2021-11-13 02:28:21,525 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:21" (1/1) ... [2021-11-13 02:28:21,639 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 02:28:21,640 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 02:28:21,640 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 02:28:21,640 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 02:28:21,649 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:21" (1/1) ... [2021-11-13 02:28:21,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:21" (1/1) ... [2021-11-13 02:28:21,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:21" (1/1) ... [2021-11-13 02:28:21,664 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:21" (1/1) ... [2021-11-13 02:28:21,720 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:21" (1/1) ... [2021-11-13 02:28:21,735 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:21" (1/1) ... [2021-11-13 02:28:21,799 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:21" (1/1) ... [2021-11-13 02:28:21,835 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 02:28:21,837 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 02:28:21,838 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 02:28:21,841 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 02:28:21,841 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:21" (1/1) ... [2021-11-13 02:28:21,848 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:28:21,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:28:21,871 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 02:28:21,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 02:28:21,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-13 02:28:21,929 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-13 02:28:21,930 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-13 02:28:21,938 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-11-13 02:28:21,938 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-11-13 02:28:21,938 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-13 02:28:21,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-13 02:28:21,938 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2021-11-13 02:28:21,938 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2021-11-13 02:28:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 02:28:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 02:28:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 02:28:21,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 02:28:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-13 02:28:21,939 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-13 02:28:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-11-13 02:28:21,939 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-11-13 02:28:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-13 02:28:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-13 02:28:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 02:28:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2021-11-13 02:28:21,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2021-11-13 02:28:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-13 02:28:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 02:28:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-13 02:28:21,940 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-13 02:28:21,941 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_for [2021-11-13 02:28:21,941 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_for [2021-11-13 02:28:21,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-13 02:28:21,941 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2021-11-13 02:28:21,941 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2021-11-13 02:28:21,941 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2021-11-13 02:28:21,941 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2021-11-13 02:28:21,941 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_keys_eq [2021-11-13 02:28:21,942 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_keys_eq [2021-11-13 02:28:21,942 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_equals [2021-11-13 02:28:21,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_equals [2021-11-13 02:28:21,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 02:28:21,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 02:28:21,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-13 02:28:21,942 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2021-11-13 02:28:21,942 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2021-11-13 02:28:21,943 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 02:28:21,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 02:28:21,943 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_hasher [2021-11-13 02:28:21,943 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_hasher [2021-11-13 02:28:21,943 INFO L130 BoogieDeclarations]: Found specification of procedure s_safe_eq_check [2021-11-13 02:28:21,943 INFO L138 BoogieDeclarations]: Found implementation of procedure s_safe_eq_check [2021-11-13 02:28:21,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-13 02:28:21,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-13 02:28:21,944 INFO L130 BoogieDeclarations]: Found specification of procedure s_find_entry [2021-11-13 02:28:21,944 INFO L138 BoogieDeclarations]: Found implementation of procedure s_find_entry [2021-11-13 02:28:21,944 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-13 02:28:21,944 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-13 02:28:21,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-13 02:28:21,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-13 02:28:21,945 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2021-11-13 02:28:21,945 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2021-11-13 02:28:21,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 02:28:21,945 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-13 02:28:21,945 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-13 02:28:21,945 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-11-13 02:28:21,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-11-13 02:28:21,946 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2021-11-13 02:28:21,946 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2021-11-13 02:28:21,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2021-11-13 02:28:21,946 INFO L130 BoogieDeclarations]: Found specification of procedure s_remove_entry [2021-11-13 02:28:21,946 INFO L138 BoogieDeclarations]: Found implementation of procedure s_remove_entry [2021-11-13 02:28:21,947 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2021-11-13 02:28:21,947 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2021-11-13 02:28:21,947 INFO L130 BoogieDeclarations]: Found specification of procedure uninterpreted_equals [2021-11-13 02:28:21,947 INFO L138 BoogieDeclarations]: Found implementation of procedure uninterpreted_equals [2021-11-13 02:28:24,392 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##35: assume !true; [2021-11-13 02:28:24,392 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !true; [2021-11-13 02:28:24,449 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume !true; [2021-11-13 02:28:24,712 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !true; [2021-11-13 02:28:40,678 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume !true; [2021-11-13 02:28:40,678 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##22: assume !true; [2021-11-13 02:28:40,727 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 02:28:40,730 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-11-13 02:28:40,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:28:40 BoogieIcfgContainer [2021-11-13 02:28:40,734 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 02:28:40,737 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 02:28:40,737 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 02:28:40,743 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 02:28:40,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:28:16" (1/3) ... [2021-11-13 02:28:40,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@459c78f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:28:40, skipping insertion in model container [2021-11-13 02:28:40,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:28:21" (2/3) ... [2021-11-13 02:28:40,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@459c78f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:28:40, skipping insertion in model container [2021-11-13 02:28:40,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:28:40" (3/3) ... [2021-11-13 02:28:40,748 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_table_remove_harness.i [2021-11-13 02:28:40,755 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 02:28:40,755 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 02:28:40,839 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 02:28:40,846 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 [2021-11-13 02:28:40,847 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 02:28:40,883 INFO L276 IsEmpty]: Start isEmpty. Operand has 301 states, 195 states have (on average 1.2564102564102564) internal successors, (245), 190 states have internal predecessors, (245), 84 states have call successors, (84), 26 states have call predecessors, (84), 26 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2021-11-13 02:28:40,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-11-13 02:28:40,906 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:28:40,907 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:28:40,907 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:28:40,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:28:40,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1239254370, now seen corresponding path program 1 times [2021-11-13 02:28:40,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:28:40,937 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1230301747] [2021-11-13 02:28:40,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:28:40,938 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:28:40,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:28:40,944 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:28:40,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 02:28:45,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:28:45,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 1851 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:28:45,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:28:46,419 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2021-11-13 02:28:46,420 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:28:47,201 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 447 trivial. 0 not checked. [2021-11-13 02:28:47,202 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:28:47,202 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1230301747] [2021-11-13 02:28:47,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1230301747] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:28:47,203 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:28:47,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-13 02:28:47,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792597713] [2021-11-13 02:28:47,206 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:28:47,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:28:47,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:28:47,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:28:47,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:28:47,245 INFO L87 Difference]: Start difference. First operand has 301 states, 195 states have (on average 1.2564102564102564) internal successors, (245), 190 states have internal predecessors, (245), 84 states have call successors, (84), 26 states have call predecessors, (84), 26 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (53), 2 states have call predecessors, (53), 3 states have return successors, (51), 3 states have call predecessors, (51), 2 states have call successors, (51) [2021-11-13 02:28:47,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:28:47,477 INFO L93 Difference]: Finished difference Result 600 states and 873 transitions. [2021-11-13 02:28:47,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 02:28:47,480 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (53), 2 states have call predecessors, (53), 3 states have return successors, (51), 3 states have call predecessors, (51), 2 states have call successors, (51) Word has length 182 [2021-11-13 02:28:47,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:28:47,495 INFO L225 Difference]: With dead ends: 600 [2021-11-13 02:28:47,495 INFO L226 Difference]: Without dead ends: 297 [2021-11-13 02:28:47,502 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 359 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:28:47,505 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 2 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1580 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.17ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 57.87ms IncrementalHoareTripleChecker+Time [2021-11-13 02:28:47,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 1580 Invalid, 11 Unknown, 0 Unchecked, 23.17ms Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 57.87ms Time] [2021-11-13 02:28:47,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2021-11-13 02:28:47,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 297. [2021-11-13 02:28:47,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 185 states have (on average 1.2216216216216216) internal successors, (226), 187 states have internal predecessors, (226), 84 states have call successors, (84), 26 states have call predecessors, (84), 27 states have return successors, (83), 83 states have call predecessors, (83), 82 states have call successors, (83) [2021-11-13 02:28:47,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 393 transitions. [2021-11-13 02:28:47,587 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 393 transitions. Word has length 182 [2021-11-13 02:28:47,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:28:47,589 INFO L470 AbstractCegarLoop]: Abstraction has 297 states and 393 transitions. [2021-11-13 02:28:47,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (53), 2 states have call predecessors, (53), 3 states have return successors, (51), 3 states have call predecessors, (51), 2 states have call successors, (51) [2021-11-13 02:28:47,590 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 393 transitions. [2021-11-13 02:28:47,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-13 02:28:47,595 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:28:47,596 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:28:47,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 02:28:47,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:28:47,810 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:28:47,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:28:47,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1283812874, now seen corresponding path program 1 times [2021-11-13 02:28:47,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:28:47,815 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [840354005] [2021-11-13 02:28:47,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:28:47,816 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:28:47,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:28:47,817 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:28:47,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 02:28:51,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:28:52,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 1858 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 02:28:52,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:28:53,038 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2021-11-13 02:28:53,038 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:28:53,895 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2021-11-13 02:28:53,895 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:28:53,895 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [840354005] [2021-11-13 02:28:53,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [840354005] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:28:53,896 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:28:53,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2021-11-13 02:28:53,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526001909] [2021-11-13 02:28:53,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:28:53,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 02:28:53,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:28:53,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 02:28:53,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-13 02:28:53,899 INFO L87 Difference]: Start difference. First operand 297 states and 393 transitions. Second operand has 6 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-13 02:28:54,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:28:54,662 INFO L93 Difference]: Finished difference Result 552 states and 735 transitions. [2021-11-13 02:28:54,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 02:28:54,664 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 188 [2021-11-13 02:28:54,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:28:54,670 INFO L225 Difference]: With dead ends: 552 [2021-11-13 02:28:54,670 INFO L226 Difference]: Without dead ends: 299 [2021-11-13 02:28:54,672 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-13 02:28:54,673 INFO L933 BasicCegarLoop]: 364 mSDtfsCounter, 3 mSDsluCounter, 1399 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 571.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1763 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.95ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 675.86ms IncrementalHoareTripleChecker+Time [2021-11-13 02:28:54,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 1763 Invalid, 182 Unknown, 0 Unchecked, 13.95ms Time], IncrementalHoareTripleChecker [3 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 675.86ms Time] [2021-11-13 02:28:54,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2021-11-13 02:28:54,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 293. [2021-11-13 02:28:54,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 182 states have (on average 1.2142857142857142) internal successors, (221), 184 states have internal predecessors, (221), 84 states have call successors, (84), 26 states have call predecessors, (84), 26 states have return successors, (82), 82 states have call predecessors, (82), 82 states have call successors, (82) [2021-11-13 02:28:54,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 387 transitions. [2021-11-13 02:28:54,741 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 387 transitions. Word has length 188 [2021-11-13 02:28:54,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:28:54,744 INFO L470 AbstractCegarLoop]: Abstraction has 293 states and 387 transitions. [2021-11-13 02:28:54,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-13 02:28:54,744 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 387 transitions. [2021-11-13 02:28:54,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-11-13 02:28:54,749 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:28:54,749 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:28:54,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 02:28:54,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:28:54,957 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:28:54,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:28:54,958 INFO L85 PathProgramCache]: Analyzing trace with hash -65267262, now seen corresponding path program 1 times [2021-11-13 02:28:54,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:28:54,961 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1547859285] [2021-11-13 02:28:54,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:28:54,962 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:28:54,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:28:54,963 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:28:54,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 02:28:59,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:28:59,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 1905 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 02:28:59,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:29:00,398 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 193 proven. 0 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2021-11-13 02:29:00,398 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:29:01,248 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2021-11-13 02:29:01,248 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:29:01,248 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1547859285] [2021-11-13 02:29:01,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1547859285] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:29:01,249 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:29:01,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-11-13 02:29:01,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55056272] [2021-11-13 02:29:01,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:29:01,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:29:01,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:29:01,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:29:01,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:29:01,251 INFO L87 Difference]: Start difference. First operand 293 states and 387 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2021-11-13 02:29:03,507 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:29:03,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:29:03,792 INFO L93 Difference]: Finished difference Result 540 states and 725 transitions. [2021-11-13 02:29:03,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 02:29:03,793 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 193 [2021-11-13 02:29:03,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:29:03,798 INFO L225 Difference]: With dead ends: 540 [2021-11-13 02:29:03,799 INFO L226 Difference]: Without dead ends: 300 [2021-11-13 02:29:03,800 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 381 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:29:03,802 INFO L933 BasicCegarLoop]: 377 mSDtfsCounter, 20 mSDsluCounter, 1075 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2404.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1452 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.13ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2504.49ms IncrementalHoareTripleChecker+Time [2021-11-13 02:29:03,802 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 1452 Invalid, 59 Unknown, 0 Unchecked, 7.13ms Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 1 Unknown, 0 Unchecked, 2504.49ms Time] [2021-11-13 02:29:03,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2021-11-13 02:29:03,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2021-11-13 02:29:03,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 187 states have (on average 1.213903743315508) internal successors, (227), 190 states have internal predecessors, (227), 85 states have call successors, (85), 26 states have call predecessors, (85), 27 states have return successors, (88), 83 states have call predecessors, (88), 83 states have call successors, (88) [2021-11-13 02:29:03,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 400 transitions. [2021-11-13 02:29:03,839 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 400 transitions. Word has length 193 [2021-11-13 02:29:03,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:29:03,840 INFO L470 AbstractCegarLoop]: Abstraction has 300 states and 400 transitions. [2021-11-13 02:29:03,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2021-11-13 02:29:03,840 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 400 transitions. [2021-11-13 02:29:03,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-11-13 02:29:03,845 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:29:03,845 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:29:03,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 02:29:04,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:29:04,058 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:29:04,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:29:04,059 INFO L85 PathProgramCache]: Analyzing trace with hash 641329344, now seen corresponding path program 1 times [2021-11-13 02:29:04,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:29:04,064 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1934714988] [2021-11-13 02:29:04,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:29:04,064 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:29:04,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:29:04,065 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:29:04,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 02:29:08,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:29:08,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 1908 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-13 02:29:08,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:29:08,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-13 02:29:10,534 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 193 proven. 0 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2021-11-13 02:29:10,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:29:11,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2021-11-13 02:29:12,108 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2021-11-13 02:29:12,109 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:29:12,109 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1934714988] [2021-11-13 02:29:12,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1934714988] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:29:12,109 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:29:12,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [10] total 15 [2021-11-13 02:29:12,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737098248] [2021-11-13 02:29:12,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:29:12,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-13 02:29:12,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:29:12,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-13 02:29:12,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-11-13 02:29:12,113 INFO L87 Difference]: Start difference. First operand 300 states and 400 transitions. Second operand has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 9 states have internal predecessors, (82), 4 states have call successors, (33), 3 states have call predecessors, (33), 4 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2021-11-13 02:29:14,789 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:29:14,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:29:14,943 INFO L93 Difference]: Finished difference Result 559 states and 751 transitions. [2021-11-13 02:29:14,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-13 02:29:14,948 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 9 states have internal predecessors, (82), 4 states have call successors, (33), 3 states have call predecessors, (33), 4 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 193 [2021-11-13 02:29:14,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:29:14,954 INFO L225 Difference]: With dead ends: 559 [2021-11-13 02:29:14,954 INFO L226 Difference]: Without dead ends: 304 [2021-11-13 02:29:14,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 372 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2021-11-13 02:29:14,958 INFO L933 BasicCegarLoop]: 381 mSDtfsCounter, 30 mSDsluCounter, 1434 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2617.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 1815 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.94ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 99 IncrementalHoareTripleChecker+Unchecked, 2699.70ms IncrementalHoareTripleChecker+Time [2021-11-13 02:29:14,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 1815 Invalid, 139 Unknown, 0 Unchecked, 7.94ms Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 1 Unknown, 99 Unchecked, 2699.70ms Time] [2021-11-13 02:29:14,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2021-11-13 02:29:14,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2021-11-13 02:29:14,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 191 states have (on average 1.2094240837696335) internal successors, (231), 193 states have internal predecessors, (231), 85 states have call successors, (85), 27 states have call predecessors, (85), 27 states have return successors, (88), 83 states have call predecessors, (88), 83 states have call successors, (88) [2021-11-13 02:29:14,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 404 transitions. [2021-11-13 02:29:14,993 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 404 transitions. Word has length 193 [2021-11-13 02:29:15,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:29:15,006 INFO L470 AbstractCegarLoop]: Abstraction has 304 states and 404 transitions. [2021-11-13 02:29:15,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 9 states have internal predecessors, (82), 4 states have call successors, (33), 3 states have call predecessors, (33), 4 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2021-11-13 02:29:15,007 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 404 transitions. [2021-11-13 02:29:15,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-11-13 02:29:15,011 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:29:15,011 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:29:15,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 02:29:15,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:29:15,234 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:29:15,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:29:15,235 INFO L85 PathProgramCache]: Analyzing trace with hash 700808702, now seen corresponding path program 1 times [2021-11-13 02:29:15,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:29:15,238 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1893544456] [2021-11-13 02:29:15,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:29:15,238 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:29:15,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:29:15,239 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:29:15,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 02:29:19,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:29:19,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 1922 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-13 02:29:19,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:29:20,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-13 02:29:21,580 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 197 proven. 0 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2021-11-13 02:29:21,581 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:29:22,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2021-11-13 02:29:23,392 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2021-11-13 02:29:23,392 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:29:23,393 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1893544456] [2021-11-13 02:29:23,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1893544456] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:29:23,393 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:29:23,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [11] total 17 [2021-11-13 02:29:23,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930272844] [2021-11-13 02:29:23,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:29:23,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-13 02:29:23,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:29:23,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-13 02:29:23,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2021-11-13 02:29:23,397 INFO L87 Difference]: Start difference. First operand 304 states and 404 transitions. Second operand has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 10 states have internal predecessors, (86), 5 states have call successors, (34), 3 states have call predecessors, (34), 5 states have return successors, (32), 5 states have call predecessors, (32), 5 states have call successors, (32) [2021-11-13 02:29:25,760 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:29:28,947 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:29:30,822 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:29:30,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:29:30,826 INFO L93 Difference]: Finished difference Result 560 states and 752 transitions. [2021-11-13 02:29:30,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 02:29:30,839 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 10 states have internal predecessors, (86), 5 states have call successors, (34), 3 states have call predecessors, (34), 5 states have return successors, (32), 5 states have call predecessors, (32), 5 states have call successors, (32) Word has length 199 [2021-11-13 02:29:30,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:29:30,842 INFO L225 Difference]: With dead ends: 560 [2021-11-13 02:29:30,842 INFO L226 Difference]: Without dead ends: 307 [2021-11-13 02:29:30,844 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 382 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2021-11-13 02:29:30,845 INFO L933 BasicCegarLoop]: 377 mSDtfsCounter, 24 mSDsluCounter, 3394 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7002.60ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 3771 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.62ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 258 IncrementalHoareTripleChecker+Unchecked, 7249.09ms IncrementalHoareTripleChecker+Time [2021-11-13 02:29:30,845 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 3771 Invalid, 359 Unknown, 0 Unchecked, 14.62ms Time], IncrementalHoareTripleChecker [8 Valid, 91 Invalid, 2 Unknown, 258 Unchecked, 7249.09ms Time] [2021-11-13 02:29:30,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2021-11-13 02:29:30,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 307. [2021-11-13 02:29:30,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 193 states have (on average 1.2072538860103628) internal successors, (233), 195 states have internal predecessors, (233), 86 states have call successors, (86), 28 states have call predecessors, (86), 27 states have return successors, (89), 83 states have call predecessors, (89), 84 states have call successors, (89) [2021-11-13 02:29:30,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 408 transitions. [2021-11-13 02:29:30,872 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 408 transitions. Word has length 199 [2021-11-13 02:29:30,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:29:30,873 INFO L470 AbstractCegarLoop]: Abstraction has 307 states and 408 transitions. [2021-11-13 02:29:30,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 10 states have internal predecessors, (86), 5 states have call successors, (34), 3 states have call predecessors, (34), 5 states have return successors, (32), 5 states have call predecessors, (32), 5 states have call successors, (32) [2021-11-13 02:29:30,874 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 408 transitions. [2021-11-13 02:29:30,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-11-13 02:29:30,878 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:29:30,878 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:29:30,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-13 02:29:31,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:29:31,102 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:29:31,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:29:31,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1607971567, now seen corresponding path program 1 times [2021-11-13 02:29:31,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:29:31,107 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [355474445] [2021-11-13 02:29:31,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:29:31,107 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:29:31,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:29:31,108 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:29:31,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-13 02:29:35,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:29:35,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 1939 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 02:29:35,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:29:36,529 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 248 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2021-11-13 02:29:36,529 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:29:37,426 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2021-11-13 02:29:37,426 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:29:37,426 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [355474445] [2021-11-13 02:29:37,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [355474445] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:29:37,426 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:29:37,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-11-13 02:29:37,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118740141] [2021-11-13 02:29:37,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:29:37,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:29:37,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:29:37,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:29:37,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:29:37,428 INFO L87 Difference]: Start difference. First operand 307 states and 408 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-11-13 02:29:39,658 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:29:39,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:29:39,936 INFO L93 Difference]: Finished difference Result 524 states and 706 transitions. [2021-11-13 02:29:39,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 02:29:39,937 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 204 [2021-11-13 02:29:39,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:29:39,941 INFO L225 Difference]: With dead ends: 524 [2021-11-13 02:29:39,941 INFO L226 Difference]: Without dead ends: 307 [2021-11-13 02:29:39,942 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 403 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:29:39,943 INFO L933 BasicCegarLoop]: 379 mSDtfsCounter, 51 mSDsluCounter, 1022 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2407.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 1401 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.33ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2482.24ms IncrementalHoareTripleChecker+Time [2021-11-13 02:29:39,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 1401 Invalid, 59 Unknown, 0 Unchecked, 4.33ms Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 1 Unknown, 0 Unchecked, 2482.24ms Time] [2021-11-13 02:29:39,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2021-11-13 02:29:39,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 307. [2021-11-13 02:29:39,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 193 states have (on average 1.2072538860103628) internal successors, (233), 195 states have internal predecessors, (233), 86 states have call successors, (86), 28 states have call predecessors, (86), 27 states have return successors, (87), 83 states have call predecessors, (87), 84 states have call successors, (87) [2021-11-13 02:29:39,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 406 transitions. [2021-11-13 02:29:39,965 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 406 transitions. Word has length 204 [2021-11-13 02:29:39,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:29:39,966 INFO L470 AbstractCegarLoop]: Abstraction has 307 states and 406 transitions. [2021-11-13 02:29:39,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-11-13 02:29:39,967 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 406 transitions. [2021-11-13 02:29:39,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-11-13 02:29:39,969 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:29:39,969 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:29:40,029 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-13 02:29:40,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:29:40,190 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:29:40,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:29:40,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1115345393, now seen corresponding path program 2 times [2021-11-13 02:29:40,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:29:40,194 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [396404758] [2021-11-13 02:29:40,194 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 02:29:40,194 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:29:40,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:29:40,195 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:29:40,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-13 02:29:43,634 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-13 02:29:43,634 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 02:29:43,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 1435 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-13 02:29:43,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:29:44,239 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2021-11-13 02:29:44,239 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:29:44,672 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2021-11-13 02:29:44,673 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:29:44,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [396404758] [2021-11-13 02:29:44,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [396404758] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:29:44,673 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:29:44,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-13 02:29:44,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650790578] [2021-11-13 02:29:44,673 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:29:44,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 02:29:44,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:29:44,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 02:29:44,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 02:29:44,675 INFO L87 Difference]: Start difference. First operand 307 states and 406 transitions. Second operand has 7 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2021-11-13 02:29:44,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:29:44,871 INFO L93 Difference]: Finished difference Result 315 states and 413 transitions. [2021-11-13 02:29:44,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:29:44,872 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 204 [2021-11-13 02:29:44,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:29:44,876 INFO L225 Difference]: With dead ends: 315 [2021-11-13 02:29:44,876 INFO L226 Difference]: Without dead ends: 313 [2021-11-13 02:29:44,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 401 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-13 02:29:44,877 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 15 mSDsluCounter, 1507 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 134.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 1893 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.67ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 152.23ms IncrementalHoareTripleChecker+Time [2021-11-13 02:29:44,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 1893 Invalid, 40 Unknown, 0 Unchecked, 4.67ms Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 152.23ms Time] [2021-11-13 02:29:44,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2021-11-13 02:29:44,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 311. [2021-11-13 02:29:44,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 196 states have (on average 1.2040816326530612) internal successors, (236), 198 states have internal predecessors, (236), 86 states have call successors, (86), 29 states have call predecessors, (86), 28 states have return successors, (87), 83 states have call predecessors, (87), 84 states have call successors, (87) [2021-11-13 02:29:44,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 409 transitions. [2021-11-13 02:29:44,901 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 409 transitions. Word has length 204 [2021-11-13 02:29:44,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:29:44,902 INFO L470 AbstractCegarLoop]: Abstraction has 311 states and 409 transitions. [2021-11-13 02:29:44,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2021-11-13 02:29:44,902 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 409 transitions. [2021-11-13 02:29:44,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-11-13 02:29:44,905 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:29:44,905 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:29:44,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-13 02:29:45,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:29:45,130 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:29:45,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:29:45,131 INFO L85 PathProgramCache]: Analyzing trace with hash 400903547, now seen corresponding path program 1 times [2021-11-13 02:29:45,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:29:45,136 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [692516274] [2021-11-13 02:29:45,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:29:45,136 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:29:45,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:29:45,138 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:29:45,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-13 02:29:49,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:29:49,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 1963 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 02:29:49,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:29:50,430 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 261 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-11-13 02:29:50,431 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:29:51,136 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 29 proven. 21 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2021-11-13 02:29:51,136 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:29:51,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [692516274] [2021-11-13 02:29:51,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [692516274] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:29:51,137 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:29:51,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2021-11-13 02:29:51,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165881657] [2021-11-13 02:29:51,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:29:51,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 02:29:51,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:29:51,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 02:29:51,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-13 02:29:51,139 INFO L87 Difference]: Start difference. First operand 311 states and 409 transitions. Second operand has 7 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 3 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2021-11-13 02:29:51,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:29:51,925 INFO L93 Difference]: Finished difference Result 540 states and 723 transitions. [2021-11-13 02:29:51,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 02:29:51,926 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 3 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 217 [2021-11-13 02:29:51,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:29:51,930 INFO L225 Difference]: With dead ends: 540 [2021-11-13 02:29:51,930 INFO L226 Difference]: Without dead ends: 319 [2021-11-13 02:29:51,931 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 433 GetRequests, 426 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-13 02:29:51,932 INFO L933 BasicCegarLoop]: 363 mSDtfsCounter, 3 mSDsluCounter, 1754 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 651.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2117 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.20ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 723.22ms IncrementalHoareTripleChecker+Time [2021-11-13 02:29:51,933 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 2117 Invalid, 217 Unknown, 0 Unchecked, 7.20ms Time], IncrementalHoareTripleChecker [2 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 723.22ms Time] [2021-11-13 02:29:51,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2021-11-13 02:29:51,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 314. [2021-11-13 02:29:51,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 198 states have (on average 1.202020202020202) internal successors, (238), 201 states have internal predecessors, (238), 86 states have call successors, (86), 29 states have call predecessors, (86), 29 states have return successors, (91), 83 states have call predecessors, (91), 84 states have call successors, (91) [2021-11-13 02:29:51,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 415 transitions. [2021-11-13 02:29:51,963 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 415 transitions. Word has length 217 [2021-11-13 02:29:51,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:29:51,965 INFO L470 AbstractCegarLoop]: Abstraction has 314 states and 415 transitions. [2021-11-13 02:29:51,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 3 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2021-11-13 02:29:51,966 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 415 transitions. [2021-11-13 02:29:51,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-11-13 02:29:51,970 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:29:51,971 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:29:52,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-13 02:29:52,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:29:52,191 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:29:52,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:29:52,191 INFO L85 PathProgramCache]: Analyzing trace with hash 924128445, now seen corresponding path program 2 times [2021-11-13 02:29:52,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:29:52,198 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [737923841] [2021-11-13 02:29:52,198 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 02:29:52,198 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:29:52,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:29:52,199 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:29:52,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-13 02:37:25,696 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-13 02:37:25,696 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 02:37:28,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 1977 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-13 02:37:28,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:37:30,761 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 254 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2021-11-13 02:37:30,762 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:37:32,321 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 446 trivial. 0 not checked. [2021-11-13 02:37:32,321 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:37:32,322 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [737923841] [2021-11-13 02:37:32,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [737923841] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:37:32,322 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:37:32,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2021-11-13 02:37:32,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753619401] [2021-11-13 02:37:32,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:37:32,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 02:37:32,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:37:32,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 02:37:32,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-13 02:37:32,325 INFO L87 Difference]: Start difference. First operand 314 states and 415 transitions. Second operand has 8 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 3 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (36), 2 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-13 02:37:34,549 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:37:36,557 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:37:39,718 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:37:41,763 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:37:44,396 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:37:44,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:37:44,398 INFO L93 Difference]: Finished difference Result 542 states and 731 transitions. [2021-11-13 02:37:44,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 02:37:44,411 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 3 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (36), 2 states have call predecessors, (36), 3 states have call successors, (36) Word has length 223 [2021-11-13 02:37:44,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:37:44,415 INFO L225 Difference]: With dead ends: 542 [2021-11-13 02:37:44,416 INFO L226 Difference]: Without dead ends: 316 [2021-11-13 02:37:44,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 434 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2021-11-13 02:37:44,418 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 7 mSDsluCounter, 1373 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11308.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1759 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.54ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 104 IncrementalHoareTripleChecker+Unchecked, 11585.24ms IncrementalHoareTripleChecker+Time [2021-11-13 02:37:44,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 1759 Invalid, 194 Unknown, 0 Unchecked, 4.54ms Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 4 Unknown, 104 Unchecked, 11585.24ms Time] [2021-11-13 02:37:44,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2021-11-13 02:37:44,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 313. [2021-11-13 02:37:44,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 198 states have (on average 1.202020202020202) internal successors, (238), 200 states have internal predecessors, (238), 85 states have call successors, (85), 29 states have call predecessors, (85), 29 states have return successors, (90), 83 states have call predecessors, (90), 83 states have call successors, (90) [2021-11-13 02:37:44,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 413 transitions. [2021-11-13 02:37:44,438 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 413 transitions. Word has length 223 [2021-11-13 02:37:44,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:37:44,439 INFO L470 AbstractCegarLoop]: Abstraction has 313 states and 413 transitions. [2021-11-13 02:37:44,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 3 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (36), 2 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-13 02:37:44,440 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 413 transitions. [2021-11-13 02:37:44,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2021-11-13 02:37:44,442 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:37:44,442 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:37:44,658 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Forcibly destroying the process [2021-11-13 02:37:44,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 137 [2021-11-13 02:37:44,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:37:44,757 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:37:44,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:37:44,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1742974628, now seen corresponding path program 3 times [2021-11-13 02:37:44,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:37:44,761 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2073253619] [2021-11-13 02:37:44,762 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-13 02:37:44,762 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:37:44,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:37:44,763 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:37:44,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61889f13-e45c-4870-9008-0b92f3d5ca4d/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process