./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_copy_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_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/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_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_copy_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/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_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/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 3a98a47bac7562a35bba31573ebdfd704a9d27baca1b439deea796ac12a0961b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:30:04,900 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:30:04,903 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:30:04,945 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:30:04,946 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:30:04,947 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:30:04,950 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:30:04,953 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:30:04,956 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:30:04,958 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:30:04,960 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:30:04,962 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:30:04,963 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:30:04,965 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:30:04,967 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:30:04,970 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:30:04,971 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:30:04,973 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:30:04,976 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:30:04,980 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:30:04,982 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:30:04,987 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:30:04,989 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:30:04,991 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:30:04,998 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:30:05,006 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:30:05,006 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:30:05,008 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:30:05,010 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:30:05,012 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:30:05,013 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:30:05,018 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:30:05,020 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:30:05,022 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:30:05,024 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:30:05,025 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:30:05,026 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:30:05,026 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:30:05,026 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:30:05,028 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:30:05,029 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:30:05,030 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-13 02:30:05,102 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:30:05,102 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:30:05,105 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:30:05,105 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:30:05,106 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:30:05,106 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:30:05,106 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:30:05,107 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 02:30:05,115 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:30:05,115 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:30:05,117 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 02:30:05,117 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 02:30:05,118 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:30:05,118 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 02:30:05,118 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 02:30:05,119 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 02:30:05,120 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:30:05,120 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 02:30:05,120 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:30:05,121 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 02:30:05,121 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:30:05,121 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 02:30:05,122 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:30:05,122 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 02:30:05,122 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:30:05,123 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 02:30:05,123 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:30:05,123 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:30:05,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:30:05,126 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:30:05,126 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:30:05,126 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 02:30:05,127 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 02:30:05,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 02:30:05,128 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 02:30:05,128 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:30:05,128 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:30:05,128 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_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a98a47bac7562a35bba31573ebdfd704a9d27baca1b439deea796ac12a0961b [2021-11-13 02:30:05,515 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:30:05,547 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:30:05,550 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:30:05,552 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:30:05,554 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:30:05,555 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_array_list_copy_harness.i [2021-11-13 02:30:05,698 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/data/04936f124/522e33e55db24957aba267c75fdbfa30/FLAGa5e67d0bf [2021-11-13 02:30:06,762 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:30:06,763 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/sv-benchmarks/c/aws-c-common/aws_array_list_copy_harness.i [2021-11-13 02:30:06,830 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/data/04936f124/522e33e55db24957aba267c75fdbfa30/FLAGa5e67d0bf [2021-11-13 02:30:07,123 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/data/04936f124/522e33e55db24957aba267c75fdbfa30 [2021-11-13 02:30:07,126 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:30:07,128 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:30:07,130 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:30:07,130 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:30:07,136 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:30:07,137 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:30:07" (1/1) ... [2021-11-13 02:30:07,140 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6657833a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:07, skipping insertion in model container [2021-11-13 02:30:07,141 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:30:07" (1/1) ... [2021-11-13 02:30:07,150 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:30:07,310 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:30:07,676 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_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/sv-benchmarks/c/aws-c-common/aws_array_list_copy_harness.i[4493,4506] [2021-11-13 02:30:07,685 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/sv-benchmarks/c/aws-c-common/aws_array_list_copy_harness.i[4553,4566] [2021-11-13 02:30:07,713 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 02:30:07,720 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 02:30:08,781 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 02:30:08,883 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:08,884 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:08,885 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:08,885 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:08,887 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:08,902 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:08,903 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:08,905 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:08,906 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:08,908 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:08,909 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:08,910 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:08,914 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:09,381 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 02:30:09,382 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 02:30:09,384 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 02:30:09,385 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 02:30:09,386 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 02:30:09,387 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 02:30:09,388 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 02:30:09,389 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 02:30:09,389 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 02:30:09,390 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 02:30:09,580 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:09,581 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:09,587 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:09,596 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:09,661 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:30:09,701 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 02:30:09,702 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@36c453a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:09, skipping insertion in model container [2021-11-13 02:30:09,702 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:30:09,703 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-13 02:30:09,705 INFO L158 Benchmark]: Toolchain (without parser) took 2575.90ms. Allocated memory was 102.8MB in the beginning and 142.6MB in the end (delta: 39.8MB). Free memory was 61.0MB in the beginning and 76.9MB in the end (delta: -15.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-11-13 02:30:09,706 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 102.8MB. Free memory was 55.1MB in the beginning and 55.1MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 02:30:09,708 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2572.53ms. Allocated memory was 102.8MB in the beginning and 142.6MB in the end (delta: 39.8MB). Free memory was 60.8MB in the beginning and 76.9MB in the end (delta: -16.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-11-13 02:30:09,710 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 102.8MB. Free memory was 55.1MB in the beginning and 55.1MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2572.53ms. Allocated memory was 102.8MB in the beginning and 142.6MB in the end (delta: 39.8MB). Free memory was 60.8MB in the beginning and 76.9MB in the end (delta: -16.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2886]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/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_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_copy_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/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_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/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 3a98a47bac7562a35bba31573ebdfd704a9d27baca1b439deea796ac12a0961b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:30:12,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:30:12,507 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:30:12,569 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:30:12,570 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:30:12,577 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:30:12,580 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:30:12,591 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:30:12,595 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:30:12,605 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:30:12,607 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:30:12,609 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:30:12,610 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:30:12,613 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:30:12,615 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:30:12,623 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:30:12,625 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:30:12,627 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:30:12,630 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:30:12,646 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:30:12,652 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:30:12,654 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:30:12,658 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:30:12,661 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:30:12,670 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:30:12,671 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:30:12,671 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:30:12,674 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:30:12,675 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:30:12,677 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:30:12,677 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:30:12,678 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:30:12,681 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:30:12,682 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:30:12,684 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:30:12,685 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:30:12,686 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:30:12,686 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:30:12,687 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:30:12,689 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:30:12,690 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:30:12,691 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-13 02:30:12,750 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:30:12,750 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:30:12,752 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:30:12,752 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:30:12,752 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:30:12,752 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:30:12,753 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:30:12,753 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:30:12,754 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:30:12,754 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:30:12,757 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:30:12,757 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:30:12,758 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 02:30:12,758 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:30:12,758 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 02:30:12,758 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:30:12,759 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 02:30:12,759 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 02:30:12,759 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 02:30:12,759 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:30:12,759 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 02:30:12,760 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:30:12,760 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 02:30:12,760 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:30:12,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:30:12,761 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:30:12,761 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:30:12,761 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 02:30:12,762 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 02:30:12,762 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 02:30:12,762 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 02:30:12,762 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:30:12,763 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:30:12,763 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_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a98a47bac7562a35bba31573ebdfd704a9d27baca1b439deea796ac12a0961b [2021-11-13 02:30:13,306 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:30:13,348 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:30:13,352 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:30:13,354 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:30:13,355 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:30:13,358 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_array_list_copy_harness.i [2021-11-13 02:30:13,444 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/data/f2a9668f7/98a7a9ee96064671a9b651ab64109b0f/FLAG0c4808f42 [2021-11-13 02:30:14,633 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:30:14,635 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/sv-benchmarks/c/aws-c-common/aws_array_list_copy_harness.i [2021-11-13 02:30:14,697 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/data/f2a9668f7/98a7a9ee96064671a9b651ab64109b0f/FLAG0c4808f42 [2021-11-13 02:30:14,875 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/data/f2a9668f7/98a7a9ee96064671a9b651ab64109b0f [2021-11-13 02:30:14,879 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:30:14,882 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:30:14,885 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:30:14,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:30:14,890 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:30:14,891 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:30:14" (1/1) ... [2021-11-13 02:30:14,894 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63ceebce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:14, skipping insertion in model container [2021-11-13 02:30:14,894 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:30:14" (1/1) ... [2021-11-13 02:30:14,903 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:30:15,107 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:30:15,514 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_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/sv-benchmarks/c/aws-c-common/aws_array_list_copy_harness.i[4493,4506] [2021-11-13 02:30:15,525 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_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/sv-benchmarks/c/aws-c-common/aws_array_list_copy_harness.i[4553,4566] [2021-11-13 02:30:15,555 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 02:30:15,564 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 02:30:16,678 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 02:30:16,779 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:16,780 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:16,781 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:16,782 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:16,783 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:16,802 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:16,803 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:16,805 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:16,806 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:16,808 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:16,809 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:16,810 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:16,811 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:17,310 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 02:30:17,311 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 02:30:17,313 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 02:30:17,314 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 02:30:17,316 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 02:30:17,318 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 02:30:17,319 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 02:30:17,320 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 02:30:17,321 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 02:30:17,322 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 02:30:17,589 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:17,590 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:17,597 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:17,608 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:17,683 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:30:17,733 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-13 02:30:17,787 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:30:17,793 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_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/sv-benchmarks/c/aws-c-common/aws_array_list_copy_harness.i[4493,4506] [2021-11-13 02:30:17,794 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_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/sv-benchmarks/c/aws-c-common/aws_array_list_copy_harness.i[4553,4566] [2021-11-13 02:30:17,796 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 02:30:17,797 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 02:30:17,863 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 02:30:17,884 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:17,885 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:17,885 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:17,886 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:17,887 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:17,896 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:17,897 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:17,899 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:17,899 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:17,901 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:17,902 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:17,903 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:17,903 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:17,953 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 02:30:17,971 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 02:30:17,973 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 02:30:17,974 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 02:30:17,975 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 02:30:17,977 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 02:30:17,981 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 02:30:17,982 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 02:30:17,983 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 02:30:17,983 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 02:30:18,059 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:18,072 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:18,074 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:18,081 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:18,126 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:30:18,169 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 02:30:18,199 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_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/sv-benchmarks/c/aws-c-common/aws_array_list_copy_harness.i[4493,4506] [2021-11-13 02:30:18,207 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_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/sv-benchmarks/c/aws-c-common/aws_array_list_copy_harness.i[4553,4566] [2021-11-13 02:30:18,238 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 02:30:18,239 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 02:30:18,289 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 02:30:18,304 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:18,305 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:18,305 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:18,305 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:18,306 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:18,313 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:18,314 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:18,315 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:18,315 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:18,316 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:18,317 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:18,317 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:18,318 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:18,371 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 02:30:18,372 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 02:30:18,373 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 02:30:18,374 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 02:30:18,375 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 02:30:18,376 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 02:30:18,377 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 02:30:18,380 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 02:30:18,380 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 02:30:18,382 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 02:30:18,434 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:18,435 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:18,436 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:18,448 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:30:18,516 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:30:18,938 INFO L208 MainTranslator]: Completed translation [2021-11-13 02:30:18,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:18 WrapperNode [2021-11-13 02:30:18,940 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:30:18,942 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 02:30:18,943 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 02:30:18,943 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 02:30:18,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:18" (1/1) ... [2021-11-13 02:30:19,109 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:18" (1/1) ... [2021-11-13 02:30:19,205 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 02:30:19,206 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 02:30:19,206 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 02:30:19,206 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 02:30:19,217 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:18" (1/1) ... [2021-11-13 02:30:19,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:18" (1/1) ... [2021-11-13 02:30:19,243 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:18" (1/1) ... [2021-11-13 02:30:19,244 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:18" (1/1) ... [2021-11-13 02:30:19,338 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:18" (1/1) ... [2021-11-13 02:30:19,356 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:18" (1/1) ... [2021-11-13 02:30:19,385 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:18" (1/1) ... [2021-11-13 02:30:19,412 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 02:30:19,413 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 02:30:19,413 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 02:30:19,413 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 02:30:19,414 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:18" (1/1) ... [2021-11-13 02:30:19,422 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:30:19,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:30:19,452 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 02:30:19,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 02:30:19,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 02:30:19,510 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2021-11-13 02:30:19,510 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2021-11-13 02:30:19,510 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2021-11-13 02:30:19,511 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2021-11-13 02:30:19,511 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-13 02:30:19,511 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-13 02:30:19,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 02:30:19,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-13 02:30:19,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-13 02:30:19,512 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2021-11-13 02:30:19,512 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2021-11-13 02:30:19,512 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-11-13 02:30:19,513 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-11-13 02:30:19,513 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-13 02:30:19,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-13 02:30:19,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 02:30:19,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 02:30:19,514 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2021-11-13 02:30:19,515 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2021-11-13 02:30:19,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 02:30:19,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 02:30:19,519 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-13 02:30:19,519 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-13 02:30:19,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-13 02:30:19,520 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-11-13 02:30:19,520 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-11-13 02:30:19,521 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2021-11-13 02:30:19,521 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2021-11-13 02:30:19,521 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2021-11-13 02:30:19,529 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2021-11-13 02:30:19,529 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-13 02:30:19,530 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-13 02:30:19,530 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2021-11-13 02:30:19,530 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2021-11-13 02:30:19,530 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2021-11-13 02:30:19,530 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2021-11-13 02:30:19,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 02:30:19,531 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-13 02:30:19,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 02:30:19,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-13 02:30:19,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-13 02:30:19,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 02:30:19,568 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-13 02:30:19,568 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-13 02:30:19,568 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-11-13 02:30:19,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-11-13 02:30:19,569 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2021-11-13 02:30:19,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2021-11-13 02:30:37,909 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 02:30:37,909 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 02:30:37,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:30:37 BoogieIcfgContainer [2021-11-13 02:30:37,912 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 02:30:37,915 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 02:30:37,915 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 02:30:37,919 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 02:30:37,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:30:14" (1/3) ... [2021-11-13 02:30:37,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b1cfeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:30:37, skipping insertion in model container [2021-11-13 02:30:37,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:30:18" (2/3) ... [2021-11-13 02:30:37,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b1cfeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:30:37, skipping insertion in model container [2021-11-13 02:30:37,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:30:37" (3/3) ... [2021-11-13 02:30:37,922 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_copy_harness.i [2021-11-13 02:30:37,929 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 02:30:37,929 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 02:30:37,992 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 02:30:38,000 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 02:30:38,001 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 02:30:38,028 INFO L276 IsEmpty]: Start isEmpty. Operand has 208 states, 118 states have (on average 1.1864406779661016) internal successors, (140), 119 states have internal predecessors, (140), 71 states have call successors, (71), 17 states have call predecessors, (71), 17 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2021-11-13 02:30:38,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-11-13 02:30:38,047 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:30:38,048 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 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] [2021-11-13 02:30:38,048 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:30:38,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:30:38,054 INFO L85 PathProgramCache]: Analyzing trace with hash -331530710, now seen corresponding path program 1 times [2021-11-13 02:30:38,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:30:38,090 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1020646892] [2021-11-13 02:30:38,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:30:38,091 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:30:38,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:30:38,095 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:30:38,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 02:30:43,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:30:43,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 1776 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:30:43,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:30:44,204 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2021-11-13 02:30:44,204 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:30:44,951 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2021-11-13 02:30:44,952 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:30:44,952 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1020646892] [2021-11-13 02:30:44,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1020646892] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:30:44,953 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:30:44,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2021-11-13 02:30:44,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968528690] [2021-11-13 02:30:44,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:30:44,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:30:44,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:30:44,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:30:44,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:30:45,001 INFO L87 Difference]: Start difference. First operand has 208 states, 118 states have (on average 1.1864406779661016) internal successors, (140), 119 states have internal predecessors, (140), 71 states have call successors, (71), 17 states have call predecessors, (71), 17 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-13 02:30:45,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:30:45,852 INFO L93 Difference]: Finished difference Result 414 states and 616 transitions. [2021-11-13 02:30:45,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 02:30:45,866 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 144 [2021-11-13 02:30:45,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:30:45,881 INFO L225 Difference]: With dead ends: 414 [2021-11-13 02:30:45,882 INFO L226 Difference]: Without dead ends: 205 [2021-11-13 02:30:45,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-13 02:30:45,895 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 57 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 617.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 898 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.08ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 698.27ms IncrementalHoareTripleChecker+Time [2021-11-13 02:30:45,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 898 Invalid, 115 Unknown, 0 Unchecked, 21.08ms Time], IncrementalHoareTripleChecker [1 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 698.27ms Time] [2021-11-13 02:30:45,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2021-11-13 02:30:45,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2021-11-13 02:30:45,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 115 states have (on average 1.173913043478261) internal successors, (135), 117 states have internal predecessors, (135), 71 states have call successors, (71), 17 states have call predecessors, (71), 18 states have return successors, (82), 70 states have call predecessors, (82), 70 states have call successors, (82) [2021-11-13 02:30:45,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 288 transitions. [2021-11-13 02:30:45,984 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 288 transitions. Word has length 144 [2021-11-13 02:30:45,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:30:45,985 INFO L470 AbstractCegarLoop]: Abstraction has 205 states and 288 transitions. [2021-11-13 02:30:45,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-13 02:30:45,986 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 288 transitions. [2021-11-13 02:30:46,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-11-13 02:30:46,006 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:30:46,007 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:30:46,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 02:30:46,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:30:46,228 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:30:46,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:30:46,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1462308057, now seen corresponding path program 1 times [2021-11-13 02:30:46,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:30:46,234 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [867203931] [2021-11-13 02:30:46,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:30:46,235 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:30:46,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:30:46,236 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:30:46,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 02:30:51,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:30:51,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 1853 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 02:30:51,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:30:52,249 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2021-11-13 02:30:52,250 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:30:52,757 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2021-11-13 02:30:52,757 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:30:52,757 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [867203931] [2021-11-13 02:30:52,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [867203931] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:30:52,758 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:30:52,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2021-11-13 02:30:52,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186647574] [2021-11-13 02:30:52,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:30:52,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 02:30:52,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:30:52,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 02:30:52,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:30:52,762 INFO L87 Difference]: Start difference. First operand 205 states and 288 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-13 02:30:52,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:30:52,937 INFO L93 Difference]: Finished difference Result 408 states and 586 transitions. [2021-11-13 02:30:52,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 02:30:52,944 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 159 [2021-11-13 02:30:52,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:30:52,953 INFO L225 Difference]: With dead ends: 408 [2021-11-13 02:30:52,957 INFO L226 Difference]: Without dead ends: 210 [2021-11-13 02:30:52,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:30:52,960 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 10 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 86.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.38ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 100.13ms IncrementalHoareTripleChecker+Time [2021-11-13 02:30:52,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 812 Invalid, 13 Unknown, 0 Unchecked, 15.38ms Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 100.13ms Time] [2021-11-13 02:30:52,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2021-11-13 02:30:52,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 207. [2021-11-13 02:30:52,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 117 states have (on average 1.170940170940171) internal successors, (137), 119 states have internal predecessors, (137), 71 states have call successors, (71), 17 states have call predecessors, (71), 18 states have return successors, (82), 70 states have call predecessors, (82), 70 states have call successors, (82) [2021-11-13 02:30:53,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 290 transitions. [2021-11-13 02:30:53,001 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 290 transitions. Word has length 159 [2021-11-13 02:30:53,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:30:53,002 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 290 transitions. [2021-11-13 02:30:53,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-13 02:30:53,003 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 290 transitions. [2021-11-13 02:30:53,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-11-13 02:30:53,006 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:30:53,007 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:30:53,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 02:30:53,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:30:53,231 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:30:53,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:30:53,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1794951195, now seen corresponding path program 1 times [2021-11-13 02:30:53,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:30:53,235 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1864629534] [2021-11-13 02:30:53,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:30:53,236 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:30:53,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:30:53,237 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:30:53,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 02:30:58,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:30:58,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 1856 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:30:58,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:30:59,163 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2021-11-13 02:30:59,163 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:30:59,817 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2021-11-13 02:30:59,818 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:30:59,818 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1864629534] [2021-11-13 02:30:59,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1864629534] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:30:59,818 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:30:59,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2021-11-13 02:30:59,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345748363] [2021-11-13 02:30:59,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:30:59,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:30:59,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:30:59,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:30:59,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:30:59,822 INFO L87 Difference]: Start difference. First operand 207 states and 290 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-13 02:31:00,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:31:00,559 INFO L93 Difference]: Finished difference Result 381 states and 531 transitions. [2021-11-13 02:31:00,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 02:31:00,564 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 159 [2021-11-13 02:31:00,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:31:00,569 INFO L225 Difference]: With dead ends: 381 [2021-11-13 02:31:00,569 INFO L226 Difference]: Without dead ends: 207 [2021-11-13 02:31:00,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-13 02:31:00,572 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 55 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 557.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.00ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 658.49ms IncrementalHoareTripleChecker+Time [2021-11-13 02:31:00,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 886 Invalid, 108 Unknown, 0 Unchecked, 14.00ms Time], IncrementalHoareTripleChecker [1 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 658.49ms Time] [2021-11-13 02:31:00,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2021-11-13 02:31:00,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2021-11-13 02:31:00,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 117 states have (on average 1.170940170940171) internal successors, (137), 119 states have internal predecessors, (137), 71 states have call successors, (71), 17 states have call predecessors, (71), 18 states have return successors, (80), 70 states have call predecessors, (80), 70 states have call successors, (80) [2021-11-13 02:31:00,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 288 transitions. [2021-11-13 02:31:00,607 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 288 transitions. Word has length 159 [2021-11-13 02:31:00,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:31:00,608 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 288 transitions. [2021-11-13 02:31:00,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-13 02:31:00,609 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 288 transitions. [2021-11-13 02:31:00,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-11-13 02:31:00,612 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:31:00,613 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:31:00,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 02:31:00,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:31:00,839 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:31:00,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:31:00,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1625358092, now seen corresponding path program 2 times [2021-11-13 02:31:00,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:31:00,843 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2079280829] [2021-11-13 02:31:00,843 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 02:31:00,843 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:31:00,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:31:00,845 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:31:00,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 02:31:05,475 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-13 02:31:05,475 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 02:31:05,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 1507 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:31:05,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:31:06,105 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2021-11-13 02:31:06,105 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:31:06,610 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2021-11-13 02:31:06,610 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:31:06,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2079280829] [2021-11-13 02:31:06,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2079280829] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:31:06,611 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:31:06,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-13 02:31:06,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154284790] [2021-11-13 02:31:06,612 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:31:06,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:31:06,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:31:06,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:31:06,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:31:06,617 INFO L87 Difference]: Start difference. First operand 207 states and 288 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-13 02:31:06,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:31:06,773 INFO L93 Difference]: Finished difference Result 267 states and 365 transitions. [2021-11-13 02:31:06,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 02:31:06,774 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) Word has length 174 [2021-11-13 02:31:06,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:31:06,782 INFO L225 Difference]: With dead ends: 267 [2021-11-13 02:31:06,782 INFO L226 Difference]: Without dead ends: 211 [2021-11-13 02:31:06,783 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 343 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 02:31:06,784 INFO L933 BasicCegarLoop]: 273 mSDtfsCounter, 2 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 88.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1087 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.65ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 104.25ms IncrementalHoareTripleChecker+Time [2021-11-13 02:31:06,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 1087 Invalid, 12 Unknown, 0 Unchecked, 4.65ms Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 104.25ms Time] [2021-11-13 02:31:06,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2021-11-13 02:31:06,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2021-11-13 02:31:06,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 120 states have (on average 1.1666666666666667) internal successors, (140), 122 states have internal predecessors, (140), 71 states have call successors, (71), 17 states have call predecessors, (71), 19 states have return successors, (82), 71 states have call predecessors, (82), 70 states have call successors, (82) [2021-11-13 02:31:06,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 293 transitions. [2021-11-13 02:31:06,842 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 293 transitions. Word has length 174 [2021-11-13 02:31:06,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:31:06,844 INFO L470 AbstractCegarLoop]: Abstraction has 211 states and 293 transitions. [2021-11-13 02:31:06,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-13 02:31:06,844 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 293 transitions. [2021-11-13 02:31:06,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-11-13 02:31:06,850 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:31:06,850 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:31:06,902 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-13 02:31:07,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:31:07,072 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:31:07,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:31:07,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1316557288, now seen corresponding path program 1 times [2021-11-13 02:31:07,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:31:07,076 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1845651847] [2021-11-13 02:31:07,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:31:07,077 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:31:07,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:31:07,079 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:31:07,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 02:31:12,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:31:12,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 1943 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 02:31:12,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:31:13,169 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2021-11-13 02:31:13,170 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:31:13,920 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2021-11-13 02:31:13,920 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:31:13,921 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1845651847] [2021-11-13 02:31:13,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1845651847] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:31:13,921 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:31:13,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 7 [2021-11-13 02:31:13,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021414800] [2021-11-13 02:31:13,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:31:13,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 02:31:13,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:31:13,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 02:31:13,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 02:31:13,923 INFO L87 Difference]: Start difference. First operand 211 states and 293 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2021-11-13 02:31:17,443 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:31:19,454 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:31:19,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:31:19,660 INFO L93 Difference]: Finished difference Result 378 states and 520 transitions. [2021-11-13 02:31:19,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:31:19,661 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 180 [2021-11-13 02:31:19,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:31:19,663 INFO L225 Difference]: With dead ends: 378 [2021-11-13 02:31:19,664 INFO L226 Difference]: Without dead ends: 211 [2021-11-13 02:31:19,665 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 354 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-13 02:31:19,666 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 89 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 80 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5481.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 1056 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.93ms SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5645.38ms IncrementalHoareTripleChecker+Time [2021-11-13 02:31:19,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 1056 Invalid, 219 Unknown, 0 Unchecked, 6.93ms Time], IncrementalHoareTripleChecker [80 Valid, 137 Invalid, 2 Unknown, 0 Unchecked, 5645.38ms Time] [2021-11-13 02:31:19,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2021-11-13 02:31:19,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2021-11-13 02:31:19,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 120 states have (on average 1.1666666666666667) internal successors, (140), 122 states have internal predecessors, (140), 71 states have call successors, (71), 17 states have call predecessors, (71), 19 states have return successors, (77), 71 states have call predecessors, (77), 70 states have call successors, (77) [2021-11-13 02:31:19,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 288 transitions. [2021-11-13 02:31:19,694 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 288 transitions. Word has length 180 [2021-11-13 02:31:19,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:31:19,695 INFO L470 AbstractCegarLoop]: Abstraction has 211 states and 288 transitions. [2021-11-13 02:31:19,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2021-11-13 02:31:19,696 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 288 transitions. [2021-11-13 02:31:19,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2021-11-13 02:31:19,700 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:31:19,700 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-11-13 02:31:19,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-13 02:31:19,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:31:19,927 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:31:19,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:31:19,927 INFO L85 PathProgramCache]: Analyzing trace with hash -790003219, now seen corresponding path program 1 times [2021-11-13 02:31:19,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:31:19,931 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1500210491] [2021-11-13 02:31:19,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:31:19,931 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:31:19,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:31:19,932 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:31:19,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-13 02:31:25,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:31:25,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 2018 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 02:31:25,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:31:26,409 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2021-11-13 02:31:26,409 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:31:27,132 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2021-11-13 02:31:27,132 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:31:27,133 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1500210491] [2021-11-13 02:31:27,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1500210491] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:31:27,133 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:31:27,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 7 [2021-11-13 02:31:27,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867555719] [2021-11-13 02:31:27,134 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:31:27,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 02:31:27,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:31:27,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 02:31:27,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 02:31:27,136 INFO L87 Difference]: Start difference. First operand 211 states and 288 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 4 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2021-11-13 02:31:30,780 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:31:32,789 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 02:31:33,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:31:33,058 INFO L93 Difference]: Finished difference Result 375 states and 505 transitions. [2021-11-13 02:31:33,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:31:33,059 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 4 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 194 [2021-11-13 02:31:33,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:31:33,062 INFO L225 Difference]: With dead ends: 375 [2021-11-13 02:31:33,062 INFO L226 Difference]: Without dead ends: 209 [2021-11-13 02:31:33,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 382 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-13 02:31:33,065 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 88 mSDsluCounter, 1032 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 68 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5649.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 1273 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.71ms SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5825.28ms IncrementalHoareTripleChecker+Time [2021-11-13 02:31:33,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 1273 Invalid, 249 Unknown, 0 Unchecked, 6.71ms Time], IncrementalHoareTripleChecker [68 Valid, 179 Invalid, 2 Unknown, 0 Unchecked, 5825.28ms Time] [2021-11-13 02:31:33,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2021-11-13 02:31:33,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2021-11-13 02:31:33,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 119 states have (on average 1.1596638655462186) internal successors, (138), 120 states have internal predecessors, (138), 71 states have call successors, (71), 17 states have call predecessors, (71), 18 states have return successors, (72), 71 states have call predecessors, (72), 70 states have call successors, (72) [2021-11-13 02:31:33,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 281 transitions. [2021-11-13 02:31:33,088 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 281 transitions. Word has length 194 [2021-11-13 02:31:33,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:31:33,089 INFO L470 AbstractCegarLoop]: Abstraction has 209 states and 281 transitions. [2021-11-13 02:31:33,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 4 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2021-11-13 02:31:33,089 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 281 transitions. [2021-11-13 02:31:33,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-11-13 02:31:33,094 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:31:33,094 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-11-13 02:31:33,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-13 02:31:33,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:31:33,307 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:31:33,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:31:33,307 INFO L85 PathProgramCache]: Analyzing trace with hash -480577734, now seen corresponding path program 1 times [2021-11-13 02:31:33,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:31:33,313 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [794216496] [2021-11-13 02:31:33,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:31:33,313 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:31:33,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:31:33,315 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:31:33,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-13 02:31:39,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:31:39,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 2098 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 02:31:39,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:31:40,240 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 429 trivial. 0 not checked. [2021-11-13 02:31:40,240 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:31:40,887 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 429 trivial. 0 not checked. [2021-11-13 02:31:40,887 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:31:40,887 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [794216496] [2021-11-13 02:31:40,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [794216496] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:31:40,888 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:31:40,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-13 02:31:40,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859946035] [2021-11-13 02:31:40,888 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:31:40,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-13 02:31:40,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:31:40,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-13 02:31:40,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-13 02:31:40,890 INFO L87 Difference]: Start difference. First operand 209 states and 281 transitions. Second operand has 10 states, 10 states have (on average 5.6) internal successors, (56), 8 states have internal predecessors, (56), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (25), 3 states have call predecessors, (25), 1 states have call successors, (25) [2021-11-13 02:31:41,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:31:41,141 INFO L93 Difference]: Finished difference Result 267 states and 352 transitions. [2021-11-13 02:31:41,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:31:41,142 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 8 states have internal predecessors, (56), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (25), 3 states have call predecessors, (25), 1 states have call successors, (25) Word has length 209 [2021-11-13 02:31:41,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:31:41,146 INFO L225 Difference]: With dead ends: 267 [2021-11-13 02:31:41,146 INFO L226 Difference]: Without dead ends: 218 [2021-11-13 02:31:41,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 408 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-13 02:31:41,147 INFO L933 BasicCegarLoop]: 275 mSDtfsCounter, 3 mSDsluCounter, 1899 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 145.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2174 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.77ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 177.56ms IncrementalHoareTripleChecker+Time [2021-11-13 02:31:41,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 2174 Invalid, 33 Unknown, 0 Unchecked, 6.77ms Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 177.56ms Time] [2021-11-13 02:31:41,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2021-11-13 02:31:41,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 211. [2021-11-13 02:31:41,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 121 states have (on average 1.1570247933884297) internal successors, (140), 122 states have internal predecessors, (140), 71 states have call successors, (71), 17 states have call predecessors, (71), 18 states have return successors, (72), 71 states have call predecessors, (72), 70 states have call successors, (72) [2021-11-13 02:31:41,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 283 transitions. [2021-11-13 02:31:41,172 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 283 transitions. Word has length 209 [2021-11-13 02:31:41,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:31:41,173 INFO L470 AbstractCegarLoop]: Abstraction has 211 states and 283 transitions. [2021-11-13 02:31:41,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 8 states have internal predecessors, (56), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (25), 3 states have call predecessors, (25), 1 states have call successors, (25) [2021-11-13 02:31:41,174 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 283 transitions. [2021-11-13 02:31:41,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-11-13 02:31:41,178 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:31:41,179 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-13 02:31:41,278 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-13 02:31:41,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:31:41,399 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:31:41,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:31:41,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1727474161, now seen corresponding path program 1 times [2021-11-13 02:31:41,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:31:41,403 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1596098662] [2021-11-13 02:31:41,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:31:41,404 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:31:41,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:31:41,405 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:31:41,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-13 02:34:04,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:34:06,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 2183 conjuncts, 64 conjunts are in the unsatisfiable core [2021-11-13 02:34:06,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:34:06,514 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-13 02:34:06,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 22 [2021-11-13 02:34:11,629 INFO L354 Elim1Store]: treesize reduction 108, result has 16.9 percent of original size [2021-11-13 02:34:11,629 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 57 treesize of output 63 [2021-11-13 02:34:33,106 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-11-13 02:34:33,107 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 61 [2021-11-13 02:34:33,155 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-11-13 02:34:33,156 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 50 [2021-11-13 02:34:36,283 WARN L860 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| (_ BitVec 64))) (let ((.cse1 (bvadd (_ bv1 64) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset|)) (.cse2 (bvadd (_ bv2 64) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset|)) (.cse3 (bvadd (_ bv3 64) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset|)) (.cse4 (bvadd (_ bv4 64) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset|)) (.cse5 (bvadd |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| (_ bv5 64))) (.cse6 (bvadd |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| (_ bv6 64))) (.cse7 (bvadd (_ bv7 64) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset|))) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base| (let ((.cse0 (select |c_#memory_$Pointer$.offset| |c_aws_mul_size_checked_#in~r#1.base|))) (store (store (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base|) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| (select .cse0 |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset|)) .cse1 (select .cse0 .cse1)) .cse2 (select .cse0 .cse2)) .cse3 (select .cse0 .cse3)) .cse4 (select .cse0 .cse4)) .cse5 (select .cse0 .cse5)) .cse6 (select .cse0 .cse6)) .cse7 (select .cse0 .cse7))))) (= (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| (let ((.cse8 (select |c_#memory_$Pointer$.base| |c_aws_mul_size_checked_#in~r#1.base|))) (store (store (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base|) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| (select .cse8 |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset|)) .cse1 (select .cse8 .cse1)) .cse2 (select .cse8 .cse2)) .cse3 (select .cse8 .cse3)) .cse4 (select .cse8 .cse4)) .cse5 (select .cse8 .cse5)) .cse6 (select .cse8 .cse6)) .cse7 (select .cse8 .cse7)))) |c_#memory_$Pointer$.base|)))) is different from true [2021-11-13 02:34:38,776 WARN L860 $PredicateComparison]: unable to prove that (exists ((|aws_array_list_is_valid_~#required_size~0.base| (_ BitVec 64))) (and (= (_ bv0 1) (bvneg (bvneg (select |c_old(#valid)| |aws_array_list_is_valid_~#required_size~0.base|)))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| (_ BitVec 64))) (let ((.cse1 (bvadd (_ bv1 64) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset|)) (.cse2 (bvadd (_ bv2 64) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset|)) (.cse3 (bvadd (_ bv3 64) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset|)) (.cse4 (bvadd (_ bv4 64) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset|)) (.cse5 (bvadd |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| (_ bv5 64))) (.cse6 (bvadd |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| (_ bv6 64))) (.cse7 (bvadd (_ bv7 64) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset|))) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_array_list_is_valid_~#required_size~0.base| (let ((.cse0 (select |c_#memory_$Pointer$.offset| |aws_array_list_is_valid_~#required_size~0.base|))) (store (store (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |aws_array_list_is_valid_~#required_size~0.base|) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| (select .cse0 |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset|)) .cse1 (select .cse0 .cse1)) .cse2 (select .cse0 .cse2)) .cse3 (select .cse0 .cse3)) .cse4 (select .cse0 .cse4)) .cse5 (select .cse0 .cse5)) .cse6 (select .cse0 .cse6)) .cse7 (select .cse0 .cse7))))) (= (store |c_old(#memory_$Pointer$.base)| |aws_array_list_is_valid_~#required_size~0.base| (let ((.cse8 (select |c_#memory_$Pointer$.base| |aws_array_list_is_valid_~#required_size~0.base|))) (store (store (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |aws_array_list_is_valid_~#required_size~0.base|) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| (select .cse8 |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset|)) .cse1 (select .cse8 .cse1)) .cse2 (select .cse8 .cse2)) .cse3 (select .cse8 .cse3)) .cse4 (select .cse8 .cse4)) .cse5 (select .cse8 .cse5)) .cse6 (select .cse8 .cse6)) .cse7 (select .cse8 .cse7)))) |c_#memory_$Pointer$.base|)))))) is different from true [2021-11-13 02:34:41,116 INFO L354 Elim1Store]: treesize reduction 1610, result has 0.6 percent of original size [2021-11-13 02:34:41,117 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 267 treesize of output 178 [2021-11-13 02:34:41,539 INFO L354 Elim1Store]: treesize reduction 1610, result has 0.6 percent of original size [2021-11-13 02:34:41,539 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 175 treesize of output 86 [2021-11-13 02:34:41,722 INFO L354 Elim1Store]: treesize reduction 56, result has 30.9 percent of original size [2021-11-13 02:34:41,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 83 treesize of output 97 [2021-11-13 02:34:51,179 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 15 treesize of output 7 [2021-11-13 02:34:51,191 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 15 treesize of output 7 [2021-11-13 02:34:52,005 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 311 proven. 68 refuted. 0 times theorem prover too weak. 125 trivial. 10 not checked. [2021-11-13 02:34:52,005 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:34:56,299 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:34:56,302 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 496 [2021-11-13 02:34:56,323 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:34:56,326 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 780 [2021-11-13 02:35:25,044 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_aws_array_list_copy_harness_~#from~0#1.base_BEFORE_CALL_46| (_ BitVec 64)) (|v_ULTIMATE.start_aws_array_list_copy_harness_~#from~0#1.offset_BEFORE_CALL_14| (_ BitVec 64))) (or (let ((.cse0 (bvadd |v_ULTIMATE.start_aws_array_list_copy_harness_~#from~0#1.offset_BEFORE_CALL_14| (_ bv32 64)))) (and (= (_ bv0 64) (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_array_list_copy_harness_~#from~0#1.base_BEFORE_CALL_46|) .cse0)) (= (_ bv0 64) (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_array_list_copy_harness_~#from~0#1.base_BEFORE_CALL_46|) .cse0)))) (exists ((|v_aws_mul_size_checked_aws_mul_u64_checked_#in~r#1.base_127| (_ BitVec 64))) (and (= (_ bv0 1) (bvneg (select |c_old(#valid)| |v_aws_mul_size_checked_aws_mul_u64_checked_#in~r#1.base_127|))) (or (exists ((v_DerPreprocessor_13 (_ BitVec 64)) (v_DerPreprocessor_14 (_ BitVec 64)) (v_DerPreprocessor_11 (_ BitVec 64)) (v_DerPreprocessor_12 (_ BitVec 64)) (v_DerPreprocessor_9 (_ BitVec 64)) (v_DerPreprocessor_15 (_ BitVec 64)) (v_DerPreprocessor_16 (_ BitVec 64)) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_129| (_ BitVec 64)) (v_DerPreprocessor_10 (_ BitVec 64))) (not (= (_ bv0 64) (select (select (store |c_old(#memory_$Pointer$.offset)| |v_aws_mul_size_checked_aws_mul_u64_checked_#in~r#1.base_127| (store (store (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |v_aws_mul_size_checked_aws_mul_u64_checked_#in~r#1.base_127|) |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_129| v_DerPreprocessor_9) (bvadd |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_129| (_ bv1 64)) v_DerPreprocessor_10) (bvadd (_ bv2 64) |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_129|) v_DerPreprocessor_11) (bvadd (_ bv3 64) |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_129|) v_DerPreprocessor_12) (bvadd |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_129| (_ bv4 64)) v_DerPreprocessor_13) (bvadd |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_129| (_ bv5 64)) v_DerPreprocessor_14) (bvadd |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_129| (_ bv6 64)) v_DerPreprocessor_15) (bvadd |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_129| (_ bv7 64)) v_DerPreprocessor_16)) |v_ULTIMATE.start_aws_array_list_copy_harness_~#from~0#1.base_BEFORE_CALL_46|) (bvadd |v_ULTIMATE.start_aws_array_list_copy_harness_~#from~0#1.offset_BEFORE_CALL_14| (_ bv32 64)))))) (exists ((v_DerPreprocessor_8 (_ BitVec 64)) (v_DerPreprocessor_7 (_ BitVec 64)) (v_DerPreprocessor_6 (_ BitVec 64)) (v_DerPreprocessor_5 (_ BitVec 64)) (v_DerPreprocessor_4 (_ BitVec 64)) (v_DerPreprocessor_3 (_ BitVec 64)) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_129| (_ BitVec 64)) (v_DerPreprocessor_2 (_ BitVec 64)) (v_DerPreprocessor_1 (_ BitVec 64))) (not (= (_ bv0 64) (select (select (store |c_old(#memory_$Pointer$.base)| |v_aws_mul_size_checked_aws_mul_u64_checked_#in~r#1.base_127| (store (store (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |v_aws_mul_size_checked_aws_mul_u64_checked_#in~r#1.base_127|) |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_129| v_DerPreprocessor_1) (bvadd |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_129| (_ bv1 64)) v_DerPreprocessor_2) (bvadd (_ bv2 64) |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_129|) v_DerPreprocessor_3) (bvadd (_ bv3 64) |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_129|) v_DerPreprocessor_4) (bvadd |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_129| (_ bv4 64)) v_DerPreprocessor_5) (bvadd |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_129| (_ bv5 64)) v_DerPreprocessor_6) (bvadd |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_129| (_ bv6 64)) v_DerPreprocessor_7) (bvadd |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_129| (_ bv7 64)) v_DerPreprocessor_8)) |v_ULTIMATE.start_aws_array_list_copy_harness_~#from~0#1.base_BEFORE_CALL_46|) (bvadd |v_ULTIMATE.start_aws_array_list_copy_harness_~#from~0#1.offset_BEFORE_CALL_14| (_ bv32 64))))))))))) is different from false [2021-11-13 02:35:36,249 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:35:36,252 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 604 [2021-11-13 02:35:36,260 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:35:36,263 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 888 [2021-11-13 02:35:43,822 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_aws_array_list_copy_harness_~#from~0#1.base_BEFORE_CALL_46| (_ BitVec 64)) (|v_ULTIMATE.start_aws_array_list_copy_harness_~#from~0#1.offset_BEFORE_CALL_14| (_ BitVec 64))) (or (exists ((|v_aws_mul_size_checked_aws_mul_u64_checked_#in~r#1.base_127| (_ BitVec 64))) (and (= (_ bv0 1) (bvneg (select |c_old(#valid)| |v_aws_mul_size_checked_aws_mul_u64_checked_#in~r#1.base_127|))) (or (exists ((v_DerPreprocessor_13 (_ BitVec 64)) (v_DerPreprocessor_14 (_ BitVec 64)) (v_DerPreprocessor_11 (_ BitVec 64)) (v_DerPreprocessor_12 (_ BitVec 64)) (v_DerPreprocessor_9 (_ BitVec 64)) (v_DerPreprocessor_15 (_ BitVec 64)) (v_DerPreprocessor_16 (_ BitVec 64)) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_129| (_ BitVec 64)) (v_DerPreprocessor_10 (_ BitVec 64))) (not (= (_ bv0 64) (select (select (store |c_old(#memory_$Pointer$.offset)| |v_aws_mul_size_checked_aws_mul_u64_checked_#in~r#1.base_127| (store (store (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |v_aws_mul_size_checked_aws_mul_u64_checked_#in~r#1.base_127|) |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_129| v_DerPreprocessor_9) (bvadd |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_129| (_ bv1 64)) v_DerPreprocessor_10) (bvadd (_ bv2 64) |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_129|) v_DerPreprocessor_11) (bvadd (_ bv3 64) |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_129|) v_DerPreprocessor_12) (bvadd |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_129| (_ bv4 64)) v_DerPreprocessor_13) (bvadd |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_129| (_ bv5 64)) v_DerPreprocessor_14) (bvadd |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_129| (_ bv6 64)) v_DerPreprocessor_15) (bvadd |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_129| (_ bv7 64)) v_DerPreprocessor_16)) |v_ULTIMATE.start_aws_array_list_copy_harness_~#from~0#1.base_BEFORE_CALL_46|) (bvadd |v_ULTIMATE.start_aws_array_list_copy_harness_~#from~0#1.offset_BEFORE_CALL_14| (_ bv32 64)))))) (exists ((v_prenex_1 (_ BitVec 64)) (v_DerPreprocessor_8 (_ BitVec 64)) (v_DerPreprocessor_7 (_ BitVec 64)) (v_DerPreprocessor_6 (_ BitVec 64)) (v_DerPreprocessor_5 (_ BitVec 64)) (v_DerPreprocessor_4 (_ BitVec 64)) (v_DerPreprocessor_3 (_ BitVec 64)) (v_DerPreprocessor_2 (_ BitVec 64)) (v_DerPreprocessor_1 (_ BitVec 64))) (not (= (_ bv0 64) (select (select (store |c_old(#memory_$Pointer$.base)| |v_aws_mul_size_checked_aws_mul_u64_checked_#in~r#1.base_127| (store (store (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |v_aws_mul_size_checked_aws_mul_u64_checked_#in~r#1.base_127|) v_prenex_1 v_DerPreprocessor_1) (bvadd v_prenex_1 (_ bv1 64)) v_DerPreprocessor_2) (bvadd (_ bv2 64) v_prenex_1) v_DerPreprocessor_3) (bvadd (_ bv3 64) v_prenex_1) v_DerPreprocessor_4) (bvadd v_prenex_1 (_ bv4 64)) v_DerPreprocessor_5) (bvadd v_prenex_1 (_ bv5 64)) v_DerPreprocessor_6) (bvadd v_prenex_1 (_ bv6 64)) v_DerPreprocessor_7) (bvadd v_prenex_1 (_ bv7 64)) v_DerPreprocessor_8)) |v_ULTIMATE.start_aws_array_list_copy_harness_~#from~0#1.base_BEFORE_CALL_46|) (bvadd |v_ULTIMATE.start_aws_array_list_copy_harness_~#from~0#1.offset_BEFORE_CALL_14| (_ bv32 64))))))))) (and (forall ((v_DerPreprocessor_25 (_ BitVec 64)) (v_DerPreprocessor_28 (_ BitVec 64)) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_132| (_ BitVec 64)) (v_DerPreprocessor_29 (_ BitVec 64)) (v_DerPreprocessor_26 (_ BitVec 64)) (v_DerPreprocessor_27 (_ BitVec 64)) (v_DerPreprocessor_31 (_ BitVec 64)) (v_DerPreprocessor_32 (_ BitVec 64)) (v_DerPreprocessor_30 (_ BitVec 64))) (= (_ bv0 64) (select (select (store |c_#memory_$Pointer$.offset| |c_aws_array_list_is_valid_~#required_size~0.base| (store (store (store (store (store (store (store (store (select |c_#memory_$Pointer$.offset| |c_aws_array_list_is_valid_~#required_size~0.base|) |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_132| v_DerPreprocessor_25) (bvadd |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_132| (_ bv1 64)) v_DerPreprocessor_26) (bvadd (_ bv2 64) |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_132|) v_DerPreprocessor_27) (bvadd (_ bv3 64) |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_132|) v_DerPreprocessor_28) (bvadd |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_132| (_ bv4 64)) v_DerPreprocessor_29) (bvadd |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_132| (_ bv5 64)) v_DerPreprocessor_30) (bvadd |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_132| (_ bv6 64)) v_DerPreprocessor_31) (bvadd |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_132| (_ bv7 64)) v_DerPreprocessor_32)) |v_ULTIMATE.start_aws_array_list_copy_harness_~#from~0#1.base_BEFORE_CALL_46|) (bvadd |v_ULTIMATE.start_aws_array_list_copy_harness_~#from~0#1.offset_BEFORE_CALL_14| (_ bv32 64))))) (forall ((v_DerPreprocessor_24 (_ BitVec 64)) (v_DerPreprocessor_22 (_ BitVec 64)) (v_DerPreprocessor_23 (_ BitVec 64)) (v_DerPreprocessor_17 (_ BitVec 64)) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_132| (_ BitVec 64)) (v_DerPreprocessor_18 (_ BitVec 64)) (v_DerPreprocessor_19 (_ BitVec 64)) (v_DerPreprocessor_20 (_ BitVec 64)) (v_DerPreprocessor_21 (_ BitVec 64))) (= (_ bv0 64) (select (select (store |c_#memory_$Pointer$.base| |c_aws_array_list_is_valid_~#required_size~0.base| (store (store (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_aws_array_list_is_valid_~#required_size~0.base|) |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_132| v_DerPreprocessor_17) (bvadd |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_132| (_ bv1 64)) v_DerPreprocessor_18) (bvadd (_ bv2 64) |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_132|) v_DerPreprocessor_19) (bvadd (_ bv3 64) |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_132|) v_DerPreprocessor_20) (bvadd |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_132| (_ bv4 64)) v_DerPreprocessor_21) (bvadd |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_132| (_ bv5 64)) v_DerPreprocessor_22) (bvadd |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_132| (_ bv6 64)) v_DerPreprocessor_23) (bvadd |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_132| (_ bv7 64)) v_DerPreprocessor_24)) |v_ULTIMATE.start_aws_array_list_copy_harness_~#from~0#1.base_BEFORE_CALL_46|) (bvadd |v_ULTIMATE.start_aws_array_list_copy_harness_~#from~0#1.offset_BEFORE_CALL_14| (_ bv32 64)))))))) is different from false [2021-11-13 02:35:45,840 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_aws_array_list_copy_harness_~#from~0#1.base_BEFORE_CALL_46| (_ BitVec 64)) (|v_ULTIMATE.start_aws_array_list_copy_harness_~#from~0#1.offset_BEFORE_CALL_14| (_ BitVec 64))) (or (exists ((|v_aws_mul_size_checked_aws_mul_u64_checked_#in~r#1.base_127| (_ BitVec 64))) (and (= (_ bv0 1) (bvneg (select |c_old(#valid)| |v_aws_mul_size_checked_aws_mul_u64_checked_#in~r#1.base_127|))) (or (exists ((v_DerPreprocessor_13 (_ BitVec 64)) (v_DerPreprocessor_14 (_ BitVec 64)) (v_DerPreprocessor_11 (_ BitVec 64)) (v_DerPreprocessor_12 (_ BitVec 64)) (v_DerPreprocessor_9 (_ BitVec 64)) (v_DerPreprocessor_15 (_ BitVec 64)) (v_DerPreprocessor_16 (_ BitVec 64)) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_129| (_ BitVec 64)) (v_DerPreprocessor_10 (_ BitVec 64))) (not (= (_ bv0 64) (select (select (store |c_old(#memory_$Pointer$.offset)| |v_aws_mul_size_checked_aws_mul_u64_checked_#in~r#1.base_127| (store (store (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |v_aws_mul_size_checked_aws_mul_u64_checked_#in~r#1.base_127|) |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_129| v_DerPreprocessor_9) (bvadd |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_129| (_ bv1 64)) v_DerPreprocessor_10) (bvadd (_ bv2 64) |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_129|) v_DerPreprocessor_11) (bvadd (_ bv3 64) |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_129|) v_DerPreprocessor_12) (bvadd |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_129| (_ bv4 64)) v_DerPreprocessor_13) (bvadd |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_129| (_ bv5 64)) v_DerPreprocessor_14) (bvadd |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_129| (_ bv6 64)) v_DerPreprocessor_15) (bvadd |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_129| (_ bv7 64)) v_DerPreprocessor_16)) |v_ULTIMATE.start_aws_array_list_copy_harness_~#from~0#1.base_BEFORE_CALL_46|) (bvadd |v_ULTIMATE.start_aws_array_list_copy_harness_~#from~0#1.offset_BEFORE_CALL_14| (_ bv32 64)))))) (exists ((v_prenex_1 (_ BitVec 64)) (v_DerPreprocessor_8 (_ BitVec 64)) (v_DerPreprocessor_7 (_ BitVec 64)) (v_DerPreprocessor_6 (_ BitVec 64)) (v_DerPreprocessor_5 (_ BitVec 64)) (v_DerPreprocessor_4 (_ BitVec 64)) (v_DerPreprocessor_3 (_ BitVec 64)) (v_DerPreprocessor_2 (_ BitVec 64)) (v_DerPreprocessor_1 (_ BitVec 64))) (not (= (_ bv0 64) (select (select (store |c_old(#memory_$Pointer$.base)| |v_aws_mul_size_checked_aws_mul_u64_checked_#in~r#1.base_127| (store (store (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |v_aws_mul_size_checked_aws_mul_u64_checked_#in~r#1.base_127|) v_prenex_1 v_DerPreprocessor_1) (bvadd v_prenex_1 (_ bv1 64)) v_DerPreprocessor_2) (bvadd (_ bv2 64) v_prenex_1) v_DerPreprocessor_3) (bvadd (_ bv3 64) v_prenex_1) v_DerPreprocessor_4) (bvadd v_prenex_1 (_ bv4 64)) v_DerPreprocessor_5) (bvadd v_prenex_1 (_ bv5 64)) v_DerPreprocessor_6) (bvadd v_prenex_1 (_ bv6 64)) v_DerPreprocessor_7) (bvadd v_prenex_1 (_ bv7 64)) v_DerPreprocessor_8)) |v_ULTIMATE.start_aws_array_list_copy_harness_~#from~0#1.base_BEFORE_CALL_46|) (bvadd |v_ULTIMATE.start_aws_array_list_copy_harness_~#from~0#1.offset_BEFORE_CALL_14| (_ bv32 64))))))))) (and (forall ((v_DerPreprocessor_25 (_ BitVec 64)) (v_DerPreprocessor_28 (_ BitVec 64)) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_132| (_ BitVec 64)) (v_DerPreprocessor_29 (_ BitVec 64)) (v_DerPreprocessor_26 (_ BitVec 64)) (v_DerPreprocessor_27 (_ BitVec 64)) (v_DerPreprocessor_31 (_ BitVec 64)) (v_DerPreprocessor_32 (_ BitVec 64)) (v_DerPreprocessor_30 (_ BitVec 64))) (= (_ bv0 64) (select (select (store |c_#memory_$Pointer$.offset| |c_aws_array_list_is_valid_~#required_size~0.base| (store (store (store (store (store (store (store (store (select |c_#memory_$Pointer$.offset| |c_aws_array_list_is_valid_~#required_size~0.base|) |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_132| v_DerPreprocessor_25) (bvadd |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_132| (_ bv1 64)) v_DerPreprocessor_26) (bvadd (_ bv2 64) |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_132|) v_DerPreprocessor_27) (bvadd (_ bv3 64) |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_132|) v_DerPreprocessor_28) (bvadd |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_132| (_ bv4 64)) v_DerPreprocessor_29) (bvadd |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_132| (_ bv5 64)) v_DerPreprocessor_30) (bvadd |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_132| (_ bv6 64)) v_DerPreprocessor_31) (bvadd |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_132| (_ bv7 64)) v_DerPreprocessor_32)) |v_ULTIMATE.start_aws_array_list_copy_harness_~#from~0#1.base_BEFORE_CALL_46|) (bvadd |v_ULTIMATE.start_aws_array_list_copy_harness_~#from~0#1.offset_BEFORE_CALL_14| (_ bv32 64))))) (forall ((v_DerPreprocessor_24 (_ BitVec 64)) (v_DerPreprocessor_22 (_ BitVec 64)) (v_DerPreprocessor_23 (_ BitVec 64)) (v_DerPreprocessor_17 (_ BitVec 64)) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_132| (_ BitVec 64)) (v_DerPreprocessor_18 (_ BitVec 64)) (v_DerPreprocessor_19 (_ BitVec 64)) (v_DerPreprocessor_20 (_ BitVec 64)) (v_DerPreprocessor_21 (_ BitVec 64))) (= (_ bv0 64) (select (select (store |c_#memory_$Pointer$.base| |c_aws_array_list_is_valid_~#required_size~0.base| (store (store (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_aws_array_list_is_valid_~#required_size~0.base|) |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_132| v_DerPreprocessor_17) (bvadd |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_132| (_ bv1 64)) v_DerPreprocessor_18) (bvadd (_ bv2 64) |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_132|) v_DerPreprocessor_19) (bvadd (_ bv3 64) |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_132|) v_DerPreprocessor_20) (bvadd |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_132| (_ bv4 64)) v_DerPreprocessor_21) (bvadd |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_132| (_ bv5 64)) v_DerPreprocessor_22) (bvadd |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_132| (_ bv6 64)) v_DerPreprocessor_23) (bvadd |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_132| (_ bv7 64)) v_DerPreprocessor_24)) |v_ULTIMATE.start_aws_array_list_copy_harness_~#from~0#1.base_BEFORE_CALL_46|) (bvadd |v_ULTIMATE.start_aws_array_list_copy_harness_~#from~0#1.offset_BEFORE_CALL_14| (_ bv32 64)))))))) is different from true [2021-11-13 02:35:45,844 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:35:45,844 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1596098662] [2021-11-13 02:35:45,844 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [|v_ULTIMATE.start_aws_array_list_copy_harness_~#from~0#1.base_BEFORE_CALL_46|, |v_ULTIMATE.start_aws_array_list_copy_harness_~#from~0#1.offset_BEFORE_CALL_14|] [2021-11-13 02:35:45,845 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [706569149] [2021-11-13 02:35:45,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:35:45,845 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:35:45,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:35:45,846 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:35:45,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6b3d400-3a49-41b2-876f-e99aa9bf6c86/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process