./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_set_at_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_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/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_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/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_57182348-6415-4b7d-b7c8-cc0e61973ccb/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 156ab79a85c4b985ced0d661dede185c573e9f8e4fcba49b00d62d883c71bbed --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:40:02,422 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:40:02,425 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:40:02,494 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:40:02,495 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:40:02,499 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:40:02,502 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:40:02,507 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:40:02,510 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:40:02,517 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:40:02,518 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:40:02,521 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:40:02,521 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:40:02,525 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:40:02,528 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:40:02,538 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:40:02,540 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:40:02,541 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:40:02,544 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:40:02,554 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:40:02,556 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:40:02,558 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:40:02,562 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:40:02,563 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:40:02,575 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:40:02,575 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:40:02,576 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:40:02,578 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:40:02,579 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:40:02,581 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:40:02,585 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:40:02,586 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:40:02,589 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:40:02,591 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:40:02,593 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:40:02,593 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:40:02,594 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:40:02,594 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:40:02,595 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:40:02,596 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:40:02,597 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:40:02,598 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-13 02:40:02,659 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:40:02,660 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:40:02,661 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:40:02,662 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:40:02,662 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:40:02,662 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:40:02,663 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:40:02,663 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 02:40:02,663 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:40:02,663 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:40:02,672 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 02:40:02,672 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 02:40:02,673 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:40:02,673 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 02:40:02,673 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 02:40:02,673 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 02:40:02,674 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:40:02,675 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 02:40:02,675 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:40:02,675 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 02:40:02,675 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:40:02,676 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 02:40:02,676 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:40:02,676 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 02:40:02,677 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:40:02,677 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 02:40:02,677 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:40:02,678 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:40:02,678 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:40:02,680 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:40:02,680 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:40:02,680 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 02:40:02,681 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 02:40:02,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 02:40:02,681 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 02:40:02,682 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:40:02,682 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:40:02,682 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_57182348-6415-4b7d-b7c8-cc0e61973ccb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 156ab79a85c4b985ced0d661dede185c573e9f8e4fcba49b00d62d883c71bbed [2021-11-13 02:40:03,002 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:40:03,041 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:40:03,044 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:40:03,045 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:40:03,046 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:40:03,048 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i [2021-11-13 02:40:03,124 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/data/c2c735e14/eac6f73acf21477f8d5ccb41283d3ab8/FLAG73778adbf [2021-11-13 02:40:04,210 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:40:04,211 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i [2021-11-13 02:40:04,263 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/data/c2c735e14/eac6f73acf21477f8d5ccb41283d3ab8/FLAG73778adbf [2021-11-13 02:40:04,615 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/data/c2c735e14/eac6f73acf21477f8d5ccb41283d3ab8 [2021-11-13 02:40:04,617 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:40:04,619 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:40:04,629 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:40:04,630 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:40:04,633 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:40:04,634 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:40:04" (1/1) ... [2021-11-13 02:40:04,637 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65c30871 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:04, skipping insertion in model container [2021-11-13 02:40:04,654 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:40:04" (1/1) ... [2021-11-13 02:40:04,663 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:40:04,780 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:40:05,137 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_57182348-6415-4b7d-b7c8-cc0e61973ccb/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4495,4508] [2021-11-13 02:40:05,146 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_57182348-6415-4b7d-b7c8-cc0e61973ccb/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4555,4568] [2021-11-13 02:40:05,175 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 02:40:05,184 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 02:40:06,212 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 02:40:06,303 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:06,304 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:06,305 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:06,306 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:06,308 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:06,324 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:06,325 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:06,328 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:06,329 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:06,332 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:06,333 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:06,334 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:06,335 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:06,843 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 02:40:06,845 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 02:40:06,847 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 02:40:06,848 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 02:40:06,851 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 02:40:06,852 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 02:40:06,853 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 02:40:06,854 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 02:40:06,855 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 02:40:06,856 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 02:40:07,138 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:07,162 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:07,277 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:07,279 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:07,280 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:07,284 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:40:07,337 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 02:40:07,338 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@79f64887 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:07, skipping insertion in model container [2021-11-13 02:40:07,338 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:40:07,339 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-13 02:40:07,342 INFO L158 Benchmark]: Toolchain (without parser) took 2721.31ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 39.9MB in the beginning and 66.5MB in the end (delta: -26.6MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2021-11-13 02:40:07,343 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 86.0MB. Free memory is still 64.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 02:40:07,345 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2709.58ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 39.7MB in the beginning and 66.5MB in the end (delta: -26.8MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2021-11-13 02:40:07,347 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 86.0MB. Free memory is still 64.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2709.58ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 39.7MB in the beginning and 66.5MB in the end (delta: -26.8MB). Peak memory consumption was 13.4MB. 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_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/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_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/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_57182348-6415-4b7d-b7c8-cc0e61973ccb/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 156ab79a85c4b985ced0d661dede185c573e9f8e4fcba49b00d62d883c71bbed --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:40:09,996 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:40:09,998 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:40:10,046 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:40:10,047 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:40:10,052 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:40:10,054 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:40:10,061 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:40:10,065 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:40:10,075 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:40:10,077 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:40:10,080 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:40:10,080 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:40:10,084 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:40:10,086 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:40:10,091 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:40:10,093 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:40:10,095 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:40:10,097 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:40:10,107 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:40:10,110 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:40:10,112 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:40:10,115 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:40:10,118 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:40:10,129 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:40:10,129 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:40:10,130 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:40:10,132 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:40:10,133 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:40:10,135 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:40:10,135 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:40:10,136 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:40:10,139 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:40:10,140 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:40:10,142 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:40:10,142 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:40:10,144 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:40:10,144 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:40:10,144 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:40:10,147 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:40:10,148 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:40:10,154 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-13 02:40:10,204 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:40:10,205 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:40:10,206 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:40:10,207 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:40:10,207 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:40:10,207 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:40:10,207 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:40:10,208 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:40:10,209 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:40:10,209 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:40:10,212 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:40:10,212 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:40:10,212 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 02:40:10,213 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:40:10,213 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 02:40:10,213 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:40:10,213 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 02:40:10,214 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 02:40:10,214 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 02:40:10,214 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:40:10,214 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 02:40:10,214 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:40:10,215 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 02:40:10,215 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:40:10,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:40:10,215 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:40:10,216 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:40:10,216 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 02:40:10,216 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 02:40:10,216 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 02:40:10,217 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 02:40:10,217 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:40:10,217 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:40:10,217 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_57182348-6415-4b7d-b7c8-cc0e61973ccb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 156ab79a85c4b985ced0d661dede185c573e9f8e4fcba49b00d62d883c71bbed [2021-11-13 02:40:10,725 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:40:10,755 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:40:10,759 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:40:10,760 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:40:10,761 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:40:10,763 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i [2021-11-13 02:40:10,851 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/data/d7732d0db/613eec04cd7a426dafc006356ad7dc16/FLAG8c493c2b5 [2021-11-13 02:40:11,999 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:40:12,001 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i [2021-11-13 02:40:12,065 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/data/d7732d0db/613eec04cd7a426dafc006356ad7dc16/FLAG8c493c2b5 [2021-11-13 02:40:12,327 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/data/d7732d0db/613eec04cd7a426dafc006356ad7dc16 [2021-11-13 02:40:12,331 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:40:12,333 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:40:12,338 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:40:12,338 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:40:12,342 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:40:12,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:40:12" (1/1) ... [2021-11-13 02:40:12,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71b29685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:12, skipping insertion in model container [2021-11-13 02:40:12,344 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:40:12" (1/1) ... [2021-11-13 02:40:12,353 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:40:12,493 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:40:12,855 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_57182348-6415-4b7d-b7c8-cc0e61973ccb/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4495,4508] [2021-11-13 02:40:12,863 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_57182348-6415-4b7d-b7c8-cc0e61973ccb/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4555,4568] [2021-11-13 02:40:12,886 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 02:40:12,893 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 02:40:14,001 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 02:40:14,147 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:14,147 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:14,148 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:14,149 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:14,154 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:14,190 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:14,193 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:14,199 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:14,201 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:14,203 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:14,205 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:14,209 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:14,209 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:14,674 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 02:40:14,676 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 02:40:14,678 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 02:40:14,679 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 02:40:14,681 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 02:40:14,682 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 02:40:14,683 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 02:40:14,684 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 02:40:14,685 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 02:40:14,686 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 02:40:14,871 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:14,880 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:14,943 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:14,944 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:14,944 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:14,948 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:40:14,990 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-13 02:40:15,098 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:40:15,103 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_57182348-6415-4b7d-b7c8-cc0e61973ccb/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4495,4508] [2021-11-13 02:40:15,104 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_57182348-6415-4b7d-b7c8-cc0e61973ccb/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4555,4568] [2021-11-13 02:40:15,106 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 02:40:15,107 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 02:40:15,151 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 02:40:15,172 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:15,172 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:15,173 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:15,174 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:15,175 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:15,185 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:15,185 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:15,187 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:15,187 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:15,189 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:15,190 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:15,190 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:15,191 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:15,297 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 02:40:15,298 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 02:40:15,299 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 02:40:15,300 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 02:40:15,302 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 02:40:15,306 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 02:40:15,307 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 02:40:15,309 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 02:40:15,310 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 02:40:15,312 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 02:40:15,380 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:15,395 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:15,419 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:15,420 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:15,420 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:15,421 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:40:15,452 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 02:40:15,484 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_57182348-6415-4b7d-b7c8-cc0e61973ccb/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4495,4508] [2021-11-13 02:40:15,485 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_57182348-6415-4b7d-b7c8-cc0e61973ccb/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4555,4568] [2021-11-13 02:40:15,487 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 02:40:15,488 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 02:40:15,555 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 02:40:15,572 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:15,573 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:15,573 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:15,574 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:15,574 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:15,583 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:15,583 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:15,584 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:15,585 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:15,586 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:15,587 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:15,588 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:15,588 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:15,639 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 02:40:15,640 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 02:40:15,641 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 02:40:15,643 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 02:40:15,644 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 02:40:15,646 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 02:40:15,646 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 02:40:15,648 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 02:40:15,649 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 02:40:15,649 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 02:40:15,708 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:15,723 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:15,789 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:15,790 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:15,790 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 02:40:15,792 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:40:16,157 INFO L208 MainTranslator]: Completed translation [2021-11-13 02:40:16,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:16 WrapperNode [2021-11-13 02:40:16,158 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:40:16,159 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 02:40:16,169 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 02:40:16,170 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 02:40:16,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:16" (1/1) ... [2021-11-13 02:40:16,371 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:16" (1/1) ... [2021-11-13 02:40:16,492 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 02:40:16,497 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 02:40:16,498 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 02:40:16,499 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 02:40:16,509 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:16" (1/1) ... [2021-11-13 02:40:16,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:16" (1/1) ... [2021-11-13 02:40:16,532 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:16" (1/1) ... [2021-11-13 02:40:16,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:16" (1/1) ... [2021-11-13 02:40:16,618 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:16" (1/1) ... [2021-11-13 02:40:16,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:16" (1/1) ... [2021-11-13 02:40:16,657 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:16" (1/1) ... [2021-11-13 02:40:16,684 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 02:40:16,686 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 02:40:16,686 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 02:40:16,687 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 02:40:16,688 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:16" (1/1) ... [2021-11-13 02:40:16,696 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:40:16,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:40:16,727 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 02:40:16,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 02:40:16,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 02:40:16,815 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2021-11-13 02:40:16,816 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2021-11-13 02:40:16,816 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2021-11-13 02:40:16,816 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2021-11-13 02:40:16,816 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-13 02:40:16,817 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-13 02:40:16,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 02:40:16,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-13 02:40:16,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-13 02:40:16,817 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2021-11-13 02:40:16,818 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2021-11-13 02:40:16,818 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-11-13 02:40:16,819 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-11-13 02:40:16,819 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-13 02:40:16,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-13 02:40:16,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 02:40:16,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 02:40:16,824 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2021-11-13 02:40:16,825 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2021-11-13 02:40:16,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 02:40:16,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 02:40:16,825 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-13 02:40:16,826 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-13 02:40:16,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-13 02:40:16,827 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-11-13 02:40:16,827 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-11-13 02:40:16,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-13 02:40:16,836 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-11-13 02:40:16,837 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-11-13 02:40:16,837 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-13 02:40:16,837 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2021-11-13 02:40:16,837 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2021-11-13 02:40:16,838 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2021-11-13 02:40:16,838 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2021-11-13 02:40:16,838 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2021-11-13 02:40:16,838 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2021-11-13 02:40:16,838 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-13 02:40:16,839 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-13 02:40:16,839 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2021-11-13 02:40:16,839 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2021-11-13 02:40:16,839 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2021-11-13 02:40:16,839 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2021-11-13 02:40:16,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 02:40:16,857 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2021-11-13 02:40:16,858 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2021-11-13 02:40:16,858 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-13 02:40:16,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 02:40:16,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-13 02:40:16,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-13 02:40:16,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 02:40:16,859 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-13 02:40:16,859 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-13 02:40:16,859 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-11-13 02:40:16,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-11-13 02:40:16,859 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2021-11-13 02:40:16,860 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2021-11-13 02:40:16,860 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2021-11-13 02:40:16,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2021-11-13 02:40:16,860 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_set_at [2021-11-13 02:40:16,860 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_set_at [2021-11-13 02:40:32,021 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 02:40:32,021 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 02:40:32,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:40:32 BoogieIcfgContainer [2021-11-13 02:40:32,025 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 02:40:32,027 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 02:40:32,027 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 02:40:32,031 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 02:40:32,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:40:12" (1/3) ... [2021-11-13 02:40:32,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c597237 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:40:32, skipping insertion in model container [2021-11-13 02:40:32,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:40:16" (2/3) ... [2021-11-13 02:40:32,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c597237 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:40:32, skipping insertion in model container [2021-11-13 02:40:32,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:40:32" (3/3) ... [2021-11-13 02:40:32,040 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_set_at_harness.i [2021-11-13 02:40:32,049 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 02:40:32,050 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 02:40:32,145 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 02:40:32,160 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 02:40:32,160 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 02:40:32,199 INFO L276 IsEmpty]: Start isEmpty. Operand has 277 states, 160 states have (on average 1.225) internal successors, (196), 161 states have internal predecessors, (196), 93 states have call successors, (93), 22 states have call predecessors, (93), 22 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2021-11-13 02:40:32,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-13 02:40:32,219 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:40:32,220 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:40:32,221 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:40:32,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:40:32,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1997174073, now seen corresponding path program 1 times [2021-11-13 02:40:32,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:40:32,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [44279795] [2021-11-13 02:40:32,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:40:32,254 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:40:32,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:40:32,258 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:40:32,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 02:40:36,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:40:36,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 1873 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-13 02:40:36,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:40:37,651 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2021-11-13 02:40:37,651 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:40:38,259 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2021-11-13 02:40:38,260 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:40:38,261 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [44279795] [2021-11-13 02:40:38,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [44279795] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:40:38,261 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:40:38,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2021-11-13 02:40:38,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403245692] [2021-11-13 02:40:38,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:40:38,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 02:40:38,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:40:38,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 02:40:38,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 02:40:38,312 INFO L87 Difference]: Start difference. First operand has 277 states, 160 states have (on average 1.225) internal successors, (196), 161 states have internal predecessors, (196), 93 states have call successors, (93), 22 states have call predecessors, (93), 22 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) Second operand has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-13 02:40:38,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:40:38,397 INFO L93 Difference]: Finished difference Result 547 states and 812 transitions. [2021-11-13 02:40:38,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 02:40:38,404 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 145 [2021-11-13 02:40:38,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:40:38,427 INFO L225 Difference]: With dead ends: 547 [2021-11-13 02:40:38,433 INFO L226 Difference]: Without dead ends: 272 [2021-11-13 02:40:38,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 02:40:38,458 INFO L933 BasicCegarLoop]: 380 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.79ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-13 02:40:38,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 4.79ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-13 02:40:38,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2021-11-13 02:40:38,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2021-11-13 02:40:38,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 156 states have (on average 1.2179487179487178) internal successors, (190), 157 states have internal predecessors, (190), 93 states have call successors, (93), 22 states have call predecessors, (93), 22 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2021-11-13 02:40:38,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 375 transitions. [2021-11-13 02:40:38,631 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 375 transitions. Word has length 145 [2021-11-13 02:40:38,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:40:38,632 INFO L470 AbstractCegarLoop]: Abstraction has 272 states and 375 transitions. [2021-11-13 02:40:38,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-13 02:40:38,633 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 375 transitions. [2021-11-13 02:40:38,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-13 02:40:38,648 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:40:38,649 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:40:38,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 02:40:38,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:40:38,850 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:40:38,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:40:38,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1087446781, now seen corresponding path program 1 times [2021-11-13 02:40:38,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:40:38,866 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1677160021] [2021-11-13 02:40:38,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:40:38,866 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:40:38,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:40:38,868 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:40:38,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 02:40:43,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:40:43,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 1873 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:40:43,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:40:44,254 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2021-11-13 02:40:44,255 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:40:44,929 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2021-11-13 02:40:44,929 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:40:44,929 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1677160021] [2021-11-13 02:40:44,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1677160021] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:40:44,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:40:44,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2021-11-13 02:40:44,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418099408] [2021-11-13 02:40:44,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:40:44,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:40:44,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:40:44,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:40:44,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:40:44,935 INFO L87 Difference]: Start difference. First operand 272 states and 375 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-13 02:40:45,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:40:45,905 INFO L93 Difference]: Finished difference Result 520 states and 734 transitions. [2021-11-13 02:40:45,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 02:40:45,907 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 145 [2021-11-13 02:40:45,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:40:45,916 INFO L225 Difference]: With dead ends: 520 [2021-11-13 02:40:45,922 INFO L226 Difference]: Without dead ends: 274 [2021-11-13 02:40:45,924 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 284 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 02:40:45,926 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 43 mSDsluCounter, 938 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 745.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 1281 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.43ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 865.00ms IncrementalHoareTripleChecker+Time [2021-11-13 02:40:45,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 1281 Invalid, 153 Unknown, 0 Unchecked, 17.43ms Time], IncrementalHoareTripleChecker [2 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 865.00ms Time] [2021-11-13 02:40:45,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2021-11-13 02:40:45,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2021-11-13 02:40:45,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 157 states have (on average 1.21656050955414) internal successors, (191), 159 states have internal predecessors, (191), 93 states have call successors, (93), 22 states have call predecessors, (93), 23 states have return successors, (108), 92 states have call predecessors, (108), 92 states have call successors, (108) [2021-11-13 02:40:46,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 392 transitions. [2021-11-13 02:40:46,003 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 392 transitions. Word has length 145 [2021-11-13 02:40:46,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:40:46,004 INFO L470 AbstractCegarLoop]: Abstraction has 274 states and 392 transitions. [2021-11-13 02:40:46,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-13 02:40:46,004 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 392 transitions. [2021-11-13 02:40:46,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-13 02:40:46,008 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:40:46,009 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:40:46,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 02:40:46,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:40:46,226 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:40:46,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:40:46,227 INFO L85 PathProgramCache]: Analyzing trace with hash 816259463, now seen corresponding path program 1 times [2021-11-13 02:40:46,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:40:46,235 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1931336575] [2021-11-13 02:40:46,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:40:46,236 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:40:46,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:40:46,237 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:40:46,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 02:40:51,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:40:51,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 2027 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 02:40:51,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:40:51,983 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2021-11-13 02:40:51,983 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:40:52,591 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2021-11-13 02:40:52,592 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:40:52,592 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1931336575] [2021-11-13 02:40:52,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1931336575] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:40:52,592 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:40:52,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2021-11-13 02:40:52,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641465165] [2021-11-13 02:40:52,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:40:52,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 02:40:52,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:40:52,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 02:40:52,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:40:52,595 INFO L87 Difference]: Start difference. First operand 274 states and 392 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-13 02:40:52,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:40:52,768 INFO L93 Difference]: Finished difference Result 527 states and 776 transitions. [2021-11-13 02:40:52,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 02:40:52,770 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 175 [2021-11-13 02:40:52,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:40:52,775 INFO L225 Difference]: With dead ends: 527 [2021-11-13 02:40:52,775 INFO L226 Difference]: Without dead ends: 279 [2021-11-13 02:40:52,777 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 346 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 02:40:52,779 INFO L933 BasicCegarLoop]: 374 mSDtfsCounter, 10 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 104.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1112 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.01ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 115.40ms IncrementalHoareTripleChecker+Time [2021-11-13 02:40:52,779 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 1112 Invalid, 13 Unknown, 0 Unchecked, 7.01ms Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 115.40ms Time] [2021-11-13 02:40:52,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2021-11-13 02:40:52,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 276. [2021-11-13 02:40:52,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 159 states have (on average 1.2138364779874213) internal successors, (193), 161 states have internal predecessors, (193), 93 states have call successors, (93), 22 states have call predecessors, (93), 23 states have return successors, (108), 92 states have call predecessors, (108), 92 states have call successors, (108) [2021-11-13 02:40:52,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 394 transitions. [2021-11-13 02:40:52,813 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 394 transitions. Word has length 175 [2021-11-13 02:40:52,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:40:52,814 INFO L470 AbstractCegarLoop]: Abstraction has 276 states and 394 transitions. [2021-11-13 02:40:52,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-13 02:40:52,815 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 394 transitions. [2021-11-13 02:40:52,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-13 02:40:52,819 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:40:52,819 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:40:52,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 02:40:53,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:40:53,039 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:40:53,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:40:53,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1585278151, now seen corresponding path program 1 times [2021-11-13 02:40:53,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:40:53,044 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1538340900] [2021-11-13 02:40:53,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:40:53,044 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:40:53,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:40:53,045 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:40:53,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 02:40:57,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:40:57,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 2033 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-13 02:40:57,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:40:59,271 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 29 treesize of output 21 [2021-11-13 02:40:59,278 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 18 treesize of output 10 [2021-11-13 02:40:59,925 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 161 proven. 4 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2021-11-13 02:40:59,926 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:41:03,717 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:03,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 43 [2021-11-13 02:41:03,786 INFO L354 Elim1Store]: treesize reduction 8, result has 46.7 percent of original size [2021-11-13 02:41:03,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 34 [2021-11-13 02:41:03,984 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 9 proven. 42 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2021-11-13 02:41:03,985 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:41:03,985 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1538340900] [2021-11-13 02:41:03,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1538340900] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:41:03,985 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [241190312] [2021-11-13 02:41:03,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:41:03,985 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:41:03,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:41:03,987 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:41:03,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2021-11-13 02:41:05,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:41:05,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 2033 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 02:41:05,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:41:06,839 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2021-11-13 02:41:06,839 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:41:07,644 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2021-11-13 02:41:07,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [241190312] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:41:07,645 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-13 02:41:07,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12, 10, 7] total 22 [2021-11-13 02:41:07,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503406792] [2021-11-13 02:41:07,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:41:07,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 02:41:07,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:41:07,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 02:41:07,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2021-11-13 02:41:07,649 INFO L87 Difference]: Start difference. First operand 276 states and 394 transitions. Second operand has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 4 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2021-11-13 02:41:09,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:41:09,100 INFO L93 Difference]: Finished difference Result 504 states and 718 transitions. [2021-11-13 02:41:09,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 02:41:09,101 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 4 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) Word has length 175 [2021-11-13 02:41:09,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:41:09,105 INFO L225 Difference]: With dead ends: 504 [2021-11-13 02:41:09,105 INFO L226 Difference]: Without dead ends: 276 [2021-11-13 02:41:09,108 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 699 GetRequests, 676 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2021-11-13 02:41:09,109 INFO L933 BasicCegarLoop]: 337 mSDtfsCounter, 141 mSDsluCounter, 1444 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1090.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1781 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.43ms SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1250.20ms IncrementalHoareTripleChecker+Time [2021-11-13 02:41:09,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 1781 Invalid, 315 Unknown, 0 Unchecked, 13.43ms Time], IncrementalHoareTripleChecker [103 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 1250.20ms Time] [2021-11-13 02:41:09,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2021-11-13 02:41:09,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 276. [2021-11-13 02:41:09,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 159 states have (on average 1.2138364779874213) internal successors, (193), 161 states have internal predecessors, (193), 93 states have call successors, (93), 22 states have call predecessors, (93), 23 states have return successors, (104), 92 states have call predecessors, (104), 92 states have call successors, (104) [2021-11-13 02:41:09,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 390 transitions. [2021-11-13 02:41:09,138 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 390 transitions. Word has length 175 [2021-11-13 02:41:09,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:41:09,139 INFO L470 AbstractCegarLoop]: Abstraction has 276 states and 390 transitions. [2021-11-13 02:41:09,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 4 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2021-11-13 02:41:09,140 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 390 transitions. [2021-11-13 02:41:09,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2021-11-13 02:41:09,143 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:41:09,143 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:41:09,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2021-11-13 02:41:09,411 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-13 02:41:09,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:41:09,561 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:41:09,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:41:09,562 INFO L85 PathProgramCache]: Analyzing trace with hash -816900858, now seen corresponding path program 2 times [2021-11-13 02:41:09,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:41:09,565 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [40781889] [2021-11-13 02:41:09,565 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 02:41:09,566 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:41:09,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:41:09,567 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:41:09,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-13 02:41:13,653 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-13 02:41:13,653 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 02:41:13,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 1529 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:41:13,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:41:14,213 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2021-11-13 02:41:14,213 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:41:14,733 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2021-11-13 02:41:14,733 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:41:14,734 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [40781889] [2021-11-13 02:41:14,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [40781889] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:41:14,734 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:41:14,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-13 02:41:14,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661039729] [2021-11-13 02:41:14,734 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:41:14,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:41:14,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:41:14,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:41:14,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:41:14,736 INFO L87 Difference]: Start difference. First operand 276 states and 390 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-13 02:41:14,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:41:14,855 INFO L93 Difference]: Finished difference Result 487 states and 677 transitions. [2021-11-13 02:41:14,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 02:41:14,856 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) Word has length 190 [2021-11-13 02:41:14,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:41:14,861 INFO L225 Difference]: With dead ends: 487 [2021-11-13 02:41:14,861 INFO L226 Difference]: Without dead ends: 280 [2021-11-13 02:41:14,863 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 375 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 02:41:14,864 INFO L933 BasicCegarLoop]: 373 mSDtfsCounter, 2 mSDsluCounter, 1114 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1487 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.15ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 65.86ms IncrementalHoareTripleChecker+Time [2021-11-13 02:41:14,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 1487 Invalid, 12 Unknown, 0 Unchecked, 5.15ms Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 65.86ms Time] [2021-11-13 02:41:14,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2021-11-13 02:41:14,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2021-11-13 02:41:14,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 162 states have (on average 1.2098765432098766) internal successors, (196), 164 states have internal predecessors, (196), 93 states have call successors, (93), 22 states have call predecessors, (93), 24 states have return successors, (106), 93 states have call predecessors, (106), 92 states have call successors, (106) [2021-11-13 02:41:14,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 395 transitions. [2021-11-13 02:41:14,890 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 395 transitions. Word has length 190 [2021-11-13 02:41:14,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:41:14,892 INFO L470 AbstractCegarLoop]: Abstraction has 280 states and 395 transitions. [2021-11-13 02:41:14,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-13 02:41:14,892 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 395 transitions. [2021-11-13 02:41:14,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-11-13 02:41:14,896 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:41:14,897 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:41:14,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-13 02:41:15,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:41:15,122 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:41:15,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:41:15,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1077981726, now seen corresponding path program 1 times [2021-11-13 02:41:15,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:41:15,126 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2000332756] [2021-11-13 02:41:15,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:41:15,126 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:41:15,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:41:15,127 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:41:15,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-13 02:41:19,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:41:20,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 2120 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-13 02:41:20,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:41:21,353 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 29 treesize of output 21 [2021-11-13 02:41:21,359 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 18 treesize of output 10 [2021-11-13 02:41:22,037 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 176 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2021-11-13 02:41:22,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:41:25,587 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:25,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 43 [2021-11-13 02:41:25,633 INFO L354 Elim1Store]: treesize reduction 8, result has 46.7 percent of original size [2021-11-13 02:41:25,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 34 [2021-11-13 02:41:25,804 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 9 proven. 48 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2021-11-13 02:41:25,804 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:41:25,805 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2000332756] [2021-11-13 02:41:25,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2000332756] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:41:25,805 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [93264623] [2021-11-13 02:41:25,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:41:25,805 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:41:25,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:41:25,806 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:41:25,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-11-13 02:41:27,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:41:27,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 2120 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 02:41:27,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:41:28,698 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2021-11-13 02:41:28,698 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:41:29,481 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2021-11-13 02:41:29,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [93264623] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:41:29,481 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-13 02:41:29,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12, 10, 8] total 23 [2021-11-13 02:41:29,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082147022] [2021-11-13 02:41:29,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:41:29,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 02:41:29,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:41:29,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 02:41:29,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-11-13 02:41:29,484 INFO L87 Difference]: Start difference. First operand 280 states and 395 transitions. Second operand has 8 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 5 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) [2021-11-13 02:41:31,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:41:31,425 INFO L93 Difference]: Finished difference Result 506 states and 710 transitions. [2021-11-13 02:41:31,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 02:41:31,426 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 5 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) Word has length 196 [2021-11-13 02:41:31,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:41:31,429 INFO L225 Difference]: With dead ends: 506 [2021-11-13 02:41:31,429 INFO L226 Difference]: Without dead ends: 280 [2021-11-13 02:41:31,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 784 GetRequests, 759 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=71, Invalid=579, Unknown=0, NotChecked=0, Total=650 [2021-11-13 02:41:31,433 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 188 mSDsluCounter, 1680 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1452.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 2007 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.58ms SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1664.95ms IncrementalHoareTripleChecker+Time [2021-11-13 02:41:31,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 2007 Invalid, 405 Unknown, 0 Unchecked, 10.58ms Time], IncrementalHoareTripleChecker [131 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 1664.95ms Time] [2021-11-13 02:41:31,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2021-11-13 02:41:31,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2021-11-13 02:41:31,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 162 states have (on average 1.2098765432098766) internal successors, (196), 164 states have internal predecessors, (196), 93 states have call successors, (93), 22 states have call predecessors, (93), 24 states have return successors, (100), 93 states have call predecessors, (100), 92 states have call successors, (100) [2021-11-13 02:41:31,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 389 transitions. [2021-11-13 02:41:31,459 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 389 transitions. Word has length 196 [2021-11-13 02:41:31,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:41:31,460 INFO L470 AbstractCegarLoop]: Abstraction has 280 states and 389 transitions. [2021-11-13 02:41:31,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 5 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) [2021-11-13 02:41:31,460 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 389 transitions. [2021-11-13 02:41:31,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-11-13 02:41:31,464 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:41:31,465 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:41:31,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-13 02:41:31,697 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2021-11-13 02:41:31,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-13 02:41:31,890 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 02:41:31,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:41:31,891 INFO L85 PathProgramCache]: Analyzing trace with hash 2131321789, now seen corresponding path program 2 times [2021-11-13 02:41:31,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:41:31,894 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [73441045] [2021-11-13 02:41:31,894 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 02:41:31,894 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:41:31,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:41:31,895 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:41:31,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57182348-6415-4b7d-b7c8-cc0e61973ccb/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process