./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 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/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_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI --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 --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 03:59:46,627 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:59:46,629 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:59:46,662 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:59:46,663 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:59:46,668 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:59:46,670 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:59:46,674 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:59:46,679 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:59:46,681 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:59:46,682 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:59:46,684 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:59:46,685 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:59:46,688 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:59:46,690 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:59:46,691 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:59:46,693 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:59:46,700 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:59:46,701 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:59:46,703 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:59:46,705 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:59:46,709 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:59:46,710 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:59:46,712 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:59:46,716 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:59:46,721 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:59:46,721 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:59:46,722 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:59:46,723 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:59:46,724 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:59:46,724 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:59:46,725 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:59:46,726 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:59:46,728 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:59:46,730 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:59:46,730 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:59:46,731 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:59:46,731 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:59:46,731 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:59:46,732 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:59:46,732 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:59:46,733 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 03:59:46,754 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:59:46,754 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:59:46,755 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:59:46,755 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:59:46,755 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:59:46,756 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:59:46,756 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:59:46,756 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:59:46,756 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:59:46,757 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:59:46,757 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:59:46,757 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:59:46,757 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:59:46,757 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:59:46,758 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:59:46,758 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:59:46,758 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:59:46,758 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:59:46,759 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:59:46,759 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:59:46,759 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:59:46,760 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:59:46,760 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:59:46,760 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:59:46,760 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:59:46,761 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:59:46,761 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:59:46,763 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:59:46,763 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:59:46,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:59:46,763 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:59:46,764 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:59:46,764 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:59:46,764 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:59:46,765 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:59:46,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:59:46,765 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:59:46,766 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:59:46,766 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 156ab79a85c4b985ced0d661dede185c573e9f8e4fcba49b00d62d883c71bbed [2022-11-03 03:59:47,063 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:59:47,100 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:59:47,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:59:47,104 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:59:47,104 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:59:47,106 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i [2022-11-03 03:59:47,194 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/data/34d664be1/c617ec8967d449d495d68775af00921f/FLAGfefa7ca27 [2022-11-03 03:59:48,053 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:59:48,054 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i [2022-11-03 03:59:48,097 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/data/34d664be1/c617ec8967d449d495d68775af00921f/FLAGfefa7ca27 [2022-11-03 03:59:48,583 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/data/34d664be1/c617ec8967d449d495d68775af00921f [2022-11-03 03:59:48,588 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:59:48,590 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:59:48,592 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:59:48,592 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:59:48,596 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:59:48,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:59:48" (1/1) ... [2022-11-03 03:59:48,598 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55d6cbf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:48, skipping insertion in model container [2022-11-03 03:59:48,598 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:59:48" (1/1) ... [2022-11-03 03:59:48,606 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:59:48,720 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:59:48,950 WARN L230 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_ce02e719-5cc4-4c13-9220-738b9729bc36/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4495,4508] [2022-11-03 03:59:48,957 WARN L230 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_ce02e719-5cc4-4c13-9220-738b9729bc36/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4555,4568] [2022-11-03 03:59:49,705 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-03 03:59:49,772 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:59:49,773 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:59:49,774 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:59:49,775 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:59:49,776 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:59:49,789 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:59:49,789 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:59:49,791 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:59:49,791 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:59:49,793 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:59:49,794 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:59:49,795 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:59:49,796 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:59:50,131 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-03 03:59:50,132 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-03 03:59:50,133 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-03 03:59:50,134 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-03 03:59:50,136 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-03 03:59:50,136 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-03 03:59:50,137 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-03 03:59:50,138 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-03 03:59:50,138 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-03 03:59:50,139 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-03 03:59:50,270 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:59:50,278 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:59:50,331 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:59:50,335 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:59:50,335 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:59:50,338 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:59:50,382 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:59:50,396 WARN L230 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_ce02e719-5cc4-4c13-9220-738b9729bc36/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4495,4508] [2022-11-03 03:59:50,396 WARN L230 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_ce02e719-5cc4-4c13-9220-738b9729bc36/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4555,4568] [2022-11-03 03:59:50,428 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-03 03:59:50,443 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:59:50,444 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:59:50,444 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:59:50,445 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:59:50,445 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:59:50,452 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:59:50,453 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:59:50,454 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:59:50,455 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:59:50,456 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:59:50,457 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:59:50,457 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:59:50,457 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:59:50,490 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-03 03:59:50,491 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-03 03:59:50,491 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-03 03:59:50,492 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-03 03:59:50,493 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-03 03:59:50,494 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-03 03:59:50,494 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-03 03:59:50,495 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-03 03:59:50,495 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-03 03:59:50,496 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-03 03:59:50,522 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:59:50,528 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:59:50,568 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:59:50,569 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:59:50,569 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:59:50,570 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:59:50,903 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:59:50,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:50 WrapperNode [2022-11-03 03:59:50,904 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:59:50,905 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:59:50,905 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:59:50,905 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:59:50,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:50" (1/1) ... [2022-11-03 03:59:51,016 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:50" (1/1) ... [2022-11-03 03:59:51,086 INFO L138 Inliner]: procedures = 691, calls = 1681, calls flagged for inlining = 51, calls inlined = 11, statements flattened = 847 [2022-11-03 03:59:51,087 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:59:51,087 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:59:51,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:59:51,087 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:59:51,097 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:50" (1/1) ... [2022-11-03 03:59:51,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:50" (1/1) ... [2022-11-03 03:59:51,112 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:50" (1/1) ... [2022-11-03 03:59:51,113 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:50" (1/1) ... [2022-11-03 03:59:51,161 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:50" (1/1) ... [2022-11-03 03:59:51,164 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:50" (1/1) ... [2022-11-03 03:59:51,171 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:50" (1/1) ... [2022-11-03 03:59:51,190 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:50" (1/1) ... [2022-11-03 03:59:51,198 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:59:51,199 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:59:51,199 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:59:51,200 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:59:51,201 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:50" (1/1) ... [2022-11-03 03:59:51,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:59:51,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:59:51,229 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:59:51,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:59:51,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:59:51,274 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-11-03 03:59:51,275 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-11-03 03:59:51,275 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-11-03 03:59:51,275 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-11-03 03:59:51,275 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-03 03:59:51,275 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-03 03:59:51,275 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2022-11-03 03:59:51,276 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2022-11-03 03:59:51,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 03:59:51,277 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-03 03:59:51,278 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-03 03:59:51,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-03 03:59:51,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-03 03:59:51,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 03:59:51,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:59:51,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 03:59:51,279 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-11-03 03:59:51,279 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-11-03 03:59:51,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:59:51,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:59:51,280 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-03 03:59:51,280 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-03 03:59:51,281 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-03 03:59:51,281 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-03 03:59:51,281 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-03 03:59:51,281 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-03 03:59:51,281 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-11-03 03:59:51,282 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-11-03 03:59:51,282 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2022-11-03 03:59:51,282 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2022-11-03 03:59:51,282 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-11-03 03:59:51,283 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-11-03 03:59:51,283 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 03:59:51,284 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 03:59:51,284 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-11-03 03:59:51,284 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-11-03 03:59:51,284 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2022-11-03 03:59:51,284 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2022-11-03 03:59:51,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:59:51,285 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2022-11-03 03:59:51,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2022-11-03 03:59:51,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 03:59:51,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 03:59:51,286 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-03 03:59:51,286 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-03 03:59:51,286 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-03 03:59:51,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-03 03:59:51,287 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2022-11-03 03:59:51,287 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2022-11-03 03:59:51,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 03:59:51,291 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-11-03 03:59:51,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-11-03 03:59:51,292 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_set_at [2022-11-03 03:59:51,292 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_set_at [2022-11-03 03:59:51,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:59:51,657 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:59:51,660 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:59:53,022 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:59:53,203 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:59:53,209 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 03:59:53,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:59:53 BoogieIcfgContainer [2022-11-03 03:59:53,214 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:59:53,217 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:59:53,217 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:59:53,220 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:59:53,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:59:48" (1/3) ... [2022-11-03 03:59:53,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aadfc4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:59:53, skipping insertion in model container [2022-11-03 03:59:53,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:59:50" (2/3) ... [2022-11-03 03:59:53,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aadfc4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:59:53, skipping insertion in model container [2022-11-03 03:59:53,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:59:53" (3/3) ... [2022-11-03 03:59:53,224 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_set_at_harness.i [2022-11-03 03:59:53,247 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:59:53,247 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:59:53,331 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:59:53,343 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@774369fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:59:53,344 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:59:53,349 INFO L276 IsEmpty]: Start isEmpty. Operand has 244 states, 127 states have (on average 1.204724409448819) internal successors, (153), 128 states have internal predecessors, (153), 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) [2022-11-03 03:59:53,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-03 03:59:53,367 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:59:53,368 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 03:59:53,368 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:59:53,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:59:53,376 INFO L85 PathProgramCache]: Analyzing trace with hash -821114386, now seen corresponding path program 1 times [2022-11-03 03:59:53,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:59:53,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830661844] [2022-11-03 03:59:53,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:59:53,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:59:53,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:59:54,464 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-11-03 03:59:54,464 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:59:54,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830661844] [2022-11-03 03:59:54,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830661844] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:59:54,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1169438562] [2022-11-03 03:59:54,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:59:54,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:59:54,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:59:54,472 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:59:54,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 03:59:55,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:59:55,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 2409 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 03:59:55,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:59:55,303 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-11-03 03:59:55,305 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:59:55,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1169438562] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:59:55,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 03:59:55,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2022-11-03 03:59:55,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616579315] [2022-11-03 03:59:55,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:59:55,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:59:55,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:59:55,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:59:55,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-03 03:59:55,353 INFO L87 Difference]: Start difference. First operand has 244 states, 127 states have (on average 1.204724409448819) internal successors, (153), 128 states have internal predecessors, (153), 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 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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) [2022-11-03 03:59:56,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:59:56,293 INFO L93 Difference]: Finished difference Result 467 states and 689 transitions. [2022-11-03 03:59:56,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 03:59:56,295 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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 114 [2022-11-03 03:59:56,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:59:56,306 INFO L225 Difference]: With dead ends: 467 [2022-11-03 03:59:56,307 INFO L226 Difference]: Without dead ends: 244 [2022-11-03 03:59:56,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-03 03:59:56,315 INFO L413 NwaCegarLoop]: 286 mSDtfsCounter, 32 mSDsluCounter, 830 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-03 03:59:56,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 1049 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-03 03:59:56,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2022-11-03 03:59:56,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2022-11-03 03:59:56,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 127 states have (on average 1.1968503937007875) internal successors, (152), 129 states have internal predecessors, (152), 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) [2022-11-03 03:59:56,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 353 transitions. [2022-11-03 03:59:56,380 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 353 transitions. Word has length 114 [2022-11-03 03:59:56,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:59:56,381 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 353 transitions. [2022-11-03 03:59:56,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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) [2022-11-03 03:59:56,382 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 353 transitions. [2022-11-03 03:59:56,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-11-03 03:59:56,385 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:59:56,386 INFO L195 NwaCegarLoop]: trace histogram [11, 6, 6, 4, 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] [2022-11-03 03:59:56,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 03:59:56,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-03 03:59:56,611 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:59:56,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:59:56,611 INFO L85 PathProgramCache]: Analyzing trace with hash -949916096, now seen corresponding path program 1 times [2022-11-03 03:59:56,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:59:56,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828030593] [2022-11-03 03:59:56,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:59:56,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:59:56,744 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 03:59:56,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [56945317] [2022-11-03 03:59:56,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:59:56,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:59:56,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:59:56,746 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:59:56,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 03:59:57,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:59:57,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 2673 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 03:59:57,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:59:57,536 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-11-03 03:59:57,536 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:59:57,536 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:59:57,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828030593] [2022-11-03 03:59:57,537 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 03:59:57,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [56945317] [2022-11-03 03:59:57,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [56945317] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:59:57,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:59:57,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 03:59:57,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833967345] [2022-11-03 03:59:57,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:59:57,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 03:59:57,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:59:57,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 03:59:57,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 03:59:57,540 INFO L87 Difference]: Start difference. First operand 244 states and 353 transitions. Second operand has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 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) [2022-11-03 03:59:59,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:59:59,070 INFO L93 Difference]: Finished difference Result 445 states and 643 transitions. [2022-11-03 03:59:59,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:59:59,071 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 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 132 [2022-11-03 03:59:59,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:59:59,074 INFO L225 Difference]: With dead ends: 445 [2022-11-03 03:59:59,074 INFO L226 Difference]: Without dead ends: 244 [2022-11-03 03:59:59,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-03 03:59:59,076 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 127 mSDsluCounter, 1235 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 1409 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-03 03:59:59,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 1409 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-03 03:59:59,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2022-11-03 03:59:59,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2022-11-03 03:59:59,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 127 states have (on average 1.1968503937007875) internal successors, (152), 129 states have internal predecessors, (152), 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) [2022-11-03 03:59:59,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 349 transitions. [2022-11-03 03:59:59,130 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 349 transitions. Word has length 132 [2022-11-03 03:59:59,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:59:59,131 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 349 transitions. [2022-11-03 03:59:59,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 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) [2022-11-03 03:59:59,131 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 349 transitions. [2022-11-03 03:59:59,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-11-03 03:59:59,134 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:59:59,134 INFO L195 NwaCegarLoop]: trace histogram [11, 6, 6, 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] [2022-11-03 03:59:59,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 03:59:59,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-03 03:59:59,363 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:59:59,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:59:59,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1708083302, now seen corresponding path program 2 times [2022-11-03 03:59:59,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:59:59,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890794982] [2022-11-03 03:59:59,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:59:59,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:59:59,477 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 03:59:59,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1265114565] [2022-11-03 03:59:59,477 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 03:59:59,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:59:59,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:59:59,479 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:59:59,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 03:59:59,967 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-03 03:59:59,967 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 03:59:59,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 1914 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 03:59:59,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:00:00,035 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2022-11-03 04:00:00,035 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:00:00,036 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:00:00,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890794982] [2022-11-03 04:00:00,036 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 04:00:00,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265114565] [2022-11-03 04:00:00,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1265114565] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:00:00,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:00:00,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 04:00:00,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168927627] [2022-11-03 04:00:00,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:00:00,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:00:00,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:00:00,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:00:00,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:00:00,040 INFO L87 Difference]: Start difference. First operand 244 states and 349 transitions. Second operand has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-03 04:00:00,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:00:00,863 INFO L93 Difference]: Finished difference Result 427 states and 602 transitions. [2022-11-03 04:00:00,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 04:00:00,864 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) Word has length 141 [2022-11-03 04:00:00,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:00:00,867 INFO L225 Difference]: With dead ends: 427 [2022-11-03 04:00:00,867 INFO L226 Difference]: Without dead ends: 248 [2022-11-03 04:00:00,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:00:00,868 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 1 mSDsluCounter, 992 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1229 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-03 04:00:00,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1229 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-03 04:00:00,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-11-03 04:00:00,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 248. [2022-11-03 04:00:00,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 130 states have (on average 1.1923076923076923) internal successors, (155), 132 states have internal predecessors, (155), 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) [2022-11-03 04:00:00,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 354 transitions. [2022-11-03 04:00:00,903 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 354 transitions. Word has length 141 [2022-11-03 04:00:00,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:00:00,905 INFO L495 AbstractCegarLoop]: Abstraction has 248 states and 354 transitions. [2022-11-03 04:00:00,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-03 04:00:00,905 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 354 transitions. [2022-11-03 04:00:00,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-11-03 04:00:00,911 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:00:00,911 INFO L195 NwaCegarLoop]: trace histogram [11, 6, 6, 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] [2022-11-03 04:00:00,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 04:00:01,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:00:01,127 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:00:01,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:00:01,127 INFO L85 PathProgramCache]: Analyzing trace with hash -188427751, now seen corresponding path program 1 times [2022-11-03 04:00:01,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:00:01,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057055853] [2022-11-03 04:00:01,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:00:01,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:00:01,233 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 04:00:01,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [460939178] [2022-11-03 04:00:01,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:00:01,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:00:01,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:00:01,252 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:00:01,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 04:00:01,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:00:01,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 2808 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 04:00:01,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:00:02,024 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2022-11-03 04:00:02,024 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:00:02,025 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:00:02,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057055853] [2022-11-03 04:00:02,025 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 04:00:02,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [460939178] [2022-11-03 04:00:02,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [460939178] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:00:02,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:00:02,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 04:00:02,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911198119] [2022-11-03 04:00:02,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:00:02,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 04:00:02,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:00:02,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 04:00:02,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:00:02,030 INFO L87 Difference]: Start difference. First operand 248 states and 354 transitions. Second operand has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2022-11-03 04:00:03,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:00:03,488 INFO L93 Difference]: Finished difference Result 448 states and 637 transitions. [2022-11-03 04:00:03,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 04:00:03,489 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 145 [2022-11-03 04:00:03,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:00:03,497 INFO L225 Difference]: With dead ends: 448 [2022-11-03 04:00:03,497 INFO L226 Difference]: Without dead ends: 248 [2022-11-03 04:00:03,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-03 04:00:03,501 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 175 mSDsluCounter, 1403 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 1551 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:00:03,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 1551 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-03 04:00:03,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-11-03 04:00:03,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 248. [2022-11-03 04:00:03,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 130 states have (on average 1.1923076923076923) internal successors, (155), 132 states have internal predecessors, (155), 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) [2022-11-03 04:00:03,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 348 transitions. [2022-11-03 04:00:03,527 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 348 transitions. Word has length 145 [2022-11-03 04:00:03,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:00:03,527 INFO L495 AbstractCegarLoop]: Abstraction has 248 states and 348 transitions. [2022-11-03 04:00:03,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2022-11-03 04:00:03,528 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 348 transitions. [2022-11-03 04:00:03,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-11-03 04:00:03,530 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:00:03,530 INFO L195 NwaCegarLoop]: trace histogram [11, 6, 6, 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] [2022-11-03 04:00:03,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-03 04:00:03,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:00:03,755 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:00:03,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:00:03,755 INFO L85 PathProgramCache]: Analyzing trace with hash 74652997, now seen corresponding path program 2 times [2022-11-03 04:00:03,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:00:03,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241838557] [2022-11-03 04:00:03,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:00:03,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:00:03,900 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 04:00:03,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1924634759] [2022-11-03 04:00:03,900 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 04:00:03,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:00:03,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:00:03,902 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:00:03,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-03 04:00:04,783 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-03 04:00:04,783 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 04:00:04,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 1990 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 04:00:04,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:00:04,827 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-11-03 04:00:04,828 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:00:04,828 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:00:04,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241838557] [2022-11-03 04:00:04,828 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 04:00:04,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924634759] [2022-11-03 04:00:04,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1924634759] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:00:04,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:00:04,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 04:00:04,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191434105] [2022-11-03 04:00:04,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:00:04,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:00:04,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:00:04,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:00:04,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:00:04,831 INFO L87 Difference]: Start difference. First operand 248 states and 348 transitions. Second operand has 5 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-11-03 04:00:05,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:00:05,453 INFO L93 Difference]: Finished difference Result 445 states and 620 transitions. [2022-11-03 04:00:05,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 04:00:05,454 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 154 [2022-11-03 04:00:05,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:00:05,456 INFO L225 Difference]: With dead ends: 445 [2022-11-03 04:00:05,456 INFO L226 Difference]: Without dead ends: 248 [2022-11-03 04:00:05,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:00:05,457 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 0 mSDsluCounter, 903 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 04:00:05,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1118 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 04:00:05,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-11-03 04:00:05,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 248. [2022-11-03 04:00:05,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 130 states have (on average 1.1923076923076923) internal successors, (155), 132 states have internal predecessors, (155), 93 states have call successors, (93), 22 states have call predecessors, (93), 24 states have return successors, (99), 93 states have call predecessors, (99), 92 states have call successors, (99) [2022-11-03 04:00:05,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 347 transitions. [2022-11-03 04:00:05,474 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 347 transitions. Word has length 154 [2022-11-03 04:00:05,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:00:05,475 INFO L495 AbstractCegarLoop]: Abstraction has 248 states and 347 transitions. [2022-11-03 04:00:05,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-11-03 04:00:05,475 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 347 transitions. [2022-11-03 04:00:05,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-11-03 04:00:05,477 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:00:05,477 INFO L195 NwaCegarLoop]: trace histogram [11, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:00:05,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-03 04:00:05,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:00:05,687 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:00:05,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:00:05,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1276385801, now seen corresponding path program 3 times [2022-11-03 04:00:05,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:00:05,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479052987] [2022-11-03 04:00:05,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:00:05,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:00:05,810 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 04:00:05,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1173678729] [2022-11-03 04:00:05,810 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-03 04:00:05,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:00:05,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:00:05,812 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:00:05,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-03 04:00:06,555 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-03 04:00:06,555 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 04:00:06,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 3072 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-03 04:00:06,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:00:06,697 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-11-03 04:00:06,697 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:00:06,697 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:00:06,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479052987] [2022-11-03 04:00:06,698 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 04:00:06,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173678729] [2022-11-03 04:00:06,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173678729] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:00:06,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:00:06,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 04:00:06,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309853334] [2022-11-03 04:00:06,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:00:06,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 04:00:06,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:00:06,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 04:00:06,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-03 04:00:06,700 INFO L87 Difference]: Start difference. First operand 248 states and 347 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 6 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (27), 6 states have call predecessors, (27), 5 states have call successors, (27) [2022-11-03 04:00:08,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:00:08,184 INFO L93 Difference]: Finished difference Result 432 states and 594 transitions. [2022-11-03 04:00:08,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 04:00:08,184 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 6 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (27), 6 states have call predecessors, (27), 5 states have call successors, (27) Word has length 163 [2022-11-03 04:00:08,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:00:08,187 INFO L225 Difference]: With dead ends: 432 [2022-11-03 04:00:08,187 INFO L226 Difference]: Without dead ends: 248 [2022-11-03 04:00:08,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-03 04:00:08,188 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 220 mSDsluCounter, 1594 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 1720 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:00:08,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 1720 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-03 04:00:08,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-11-03 04:00:08,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 248. [2022-11-03 04:00:08,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 130 states have (on average 1.1923076923076923) internal successors, (155), 132 states have internal predecessors, (155), 93 states have call successors, (93), 22 states have call predecessors, (93), 24 states have return successors, (96), 93 states have call predecessors, (96), 92 states have call successors, (96) [2022-11-03 04:00:08,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 344 transitions. [2022-11-03 04:00:08,203 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 344 transitions. Word has length 163 [2022-11-03 04:00:08,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:00:08,204 INFO L495 AbstractCegarLoop]: Abstraction has 248 states and 344 transitions. [2022-11-03 04:00:08,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 6 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (27), 6 states have call predecessors, (27), 5 states have call successors, (27) [2022-11-03 04:00:08,205 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 344 transitions. [2022-11-03 04:00:08,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-03 04:00:08,207 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:00:08,207 INFO L195 NwaCegarLoop]: trace histogram [11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-11-03 04:00:08,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-03 04:00:08,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-03 04:00:08,423 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:00:08,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:00:08,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1561834877, now seen corresponding path program 1 times [2022-11-03 04:00:08,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:00:08,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611409749] [2022-11-03 04:00:08,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:00:08,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:00:08,540 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 04:00:08,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2874849] [2022-11-03 04:00:08,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:00:08,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:00:08,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:00:08,542 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:00:08,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce02e719-5cc4-4c13-9220-738b9729bc36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-03 04:00:09,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:00:09,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 3204 conjuncts, 56 conjunts are in the unsatisfiable core [2022-11-03 04:00:09,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:00:09,619 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 161 proven. 6 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2022-11-03 04:00:09,619 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:00:10,204 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2022-11-03 04:00:10,204 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:00:10,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611409749] [2022-11-03 04:00:10,205 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 04:00:10,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2874849] [2022-11-03 04:00:10,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2874849] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:00:10,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1960020289] [2022-11-03 04:00:10,226 INFO L159 IcfgInterpreter]: Started Sifa with 88 locations of interest [2022-11-03 04:00:10,227 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:00:10,230 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:00:10,235 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:00:10,236 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:00:13,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:13,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:14,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:14,101 INFO L244 Elim1Store]: Index analysis took 472 ms [2022-11-03 04:00:37,090 WARN L234 SmtUtils]: Spent 22.92s on a formula simplification. DAG size of input: 1749 DAG size of output: 1163 (called from [L 353] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-03 04:00:37,096 INFO L356 Elim1Store]: treesize reduction 1948, result has 47.2 percent of original size [2022-11-03 04:00:37,101 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 197 select indices, 197 select index equivalence classes, 19310 disjoint index pairs (out of 19306 index pairs), introduced 197 new quantified variables, introduced 194 case distinctions, treesize of input 992 treesize of output 2350 [2022-11-03 04:00:40,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:40,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:00:41,162 INFO L244 Elim1Store]: Index analysis took 951 ms [2022-11-03 04:01:24,079 WARN L234 SmtUtils]: Spent 42.85s on a formula simplification. DAG size of input: 2139 DAG size of output: 1167 (called from [L 353] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-03 04:01:24,082 INFO L356 Elim1Store]: treesize reduction 3492, result has 33.3 percent of original size [2022-11-03 04:01:24,084 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 199 select indices, 199 select index equivalence classes, 19507 disjoint index pairs (out of 19701 index pairs), introduced 199 new quantified variables, introduced 388 case distinctions, treesize of input 1002 treesize of output 2369 [2022-11-03 04:02:34,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:34,815 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 43 [2022-11-03 04:02:34,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:34,821 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 43 [2022-11-03 04:02:34,828 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:02:34,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:34,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:34,841 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 29 [2022-11-03 04:02:38,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:39,068 INFO L356 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-03 04:02:39,072 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 199 select indices, 199 select index equivalence classes, 19699 disjoint index pairs (out of 19701 index pairs), introduced 199 new quantified variables, introduced 2 case distinctions, treesize of input 996 treesize of output 598 [2022-11-03 04:02:39,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:39,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:39,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:39,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:39,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:39,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:39,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:39,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:39,735 INFO L244 Elim1Store]: Index analysis took 136 ms [2022-11-03 04:02:39,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:39,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:39,765 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:02:39,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:39,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:39,778 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:02:39,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:39,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:39,863 INFO L356 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-11-03 04:02:39,867 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 195 select indices, 195 select index equivalence classes, 17055 disjoint index pairs (out of 18915 index pairs), introduced 195 new quantified variables, introduced 18 case distinctions, treesize of input 1752 treesize of output 594 [2022-11-03 04:02:40,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,392 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 198 select indices, 198 select index equivalence classes, 19506 disjoint index pairs (out of 19503 index pairs), introduced 198 new quantified variables, introduced 0 case distinctions, treesize of input 991 treesize of output 595 [2022-11-03 04:02:40,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:40,811 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 55 select indices, 55 select index equivalence classes, 1244 disjoint index pairs (out of 1485 index pairs), introduced 55 new quantified variables, introduced 0 case distinctions, treesize of input 644 treesize of output 304 [2022-11-03 04:02:41,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:41,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:41,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:41,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:41,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:41,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:41,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:41,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:41,269 INFO L244 Elim1Store]: Index analysis took 108 ms [2022-11-03 04:02:41,303 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 195 select indices, 195 select index equivalence classes, 17053 disjoint index pairs (out of 18915 index pairs), introduced 195 new quantified variables, introduced 0 case distinctions, treesize of input 1752 treesize of output 586 [2022-11-03 04:02:51,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,510 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:02:51,511 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 55 select indices, 55 select index equivalence classes, 1246 disjoint index pairs (out of 1485 index pairs), introduced 55 new quantified variables, introduced 4 case distinctions, treesize of input 644 treesize of output 304 [2022-11-03 04:02:51,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:51,899 INFO L356 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-03 04:02:51,903 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 198 select indices, 198 select index equivalence classes, 19502 disjoint index pairs (out of 19503 index pairs), introduced 198 new quantified variables, introduced 2 case distinctions, treesize of input 991 treesize of output 595 [2022-11-03 04:02:52,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:52,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:52,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:52,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:52,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:52,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:52,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:52,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:52,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:52,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:52,524 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:02:52,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:52,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:52,537 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:02:52,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:52,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:52,601 INFO L356 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-03 04:02:52,606 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 195 select indices, 195 select index equivalence classes, 17055 disjoint index pairs (out of 18915 index pairs), introduced 195 new quantified variables, introduced 18 case distinctions, treesize of input 1752 treesize of output 586 [2022-11-03 04:02:53,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:53,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:53,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:53,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:53,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:53,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:53,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:53,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:53,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:53,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:53,209 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:02:53,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:53,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:53,216 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:02:53,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:53,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:53,299 INFO L356 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-11-03 04:02:53,304 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 195 select indices, 195 select index equivalence classes, 17055 disjoint index pairs (out of 18915 index pairs), introduced 195 new quantified variables, introduced 18 case distinctions, treesize of input 1752 treesize of output 594 [2022-11-03 04:02:53,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:53,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:53,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:53,827 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 199 select indices, 199 select index equivalence classes, 19703 disjoint index pairs (out of 19701 index pairs), introduced 199 new quantified variables, introduced 0 case distinctions, treesize of input 996 treesize of output 598 [2022-11-03 04:02:55,066 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-03 04:02:55,072 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-03 04:02:55,101 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-03 04:02:55,112 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-03 04:02:55,159 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:02:55,166 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:02:55,172 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:02:55,183 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:02:55,232 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 04:02:55,240 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 04:02:55,266 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:02:55,266 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 38 [2022-11-03 04:02:55,322 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 04:02:55,345 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:02:55,346 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 38 [2022-11-03 04:02:55,354 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 04:02:55,413 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-03 04:02:55,842 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 198 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-03 04:02:55,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:55,926 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 198 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 30 [2022-11-03 04:02:55,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:55,979 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 198 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 24 [2022-11-03 04:02:57,370 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 198 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-03 04:02:57,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:57,816 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 198 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 30 [2022-11-03 04:02:57,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:57,858 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 198 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 24 [2022-11-03 04:02:58,833 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-03 04:02:58,834 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-11-03 04:02:58,892 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-03 04:02:58,893 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 21 [2022-11-03 04:02:59,060 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:02:59,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:59,062 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:02:59,063 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:02:59,070 INFO L356 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-03 04:02:59,072 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 81 treesize of output 33 [2022-11-03 04:02:59,092 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 04:02:59,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:59,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:59,113 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:02:59,121 INFO L356 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-03 04:02:59,122 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 70 treesize of output 38 [2022-11-03 04:02:59,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:59,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:59,137 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:02:59,145 INFO L356 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-03 04:02:59,145 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 64 treesize of output 32 [2022-11-03 04:02:59,227 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 04:02:59,355 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 04:02:59,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:59,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:59,373 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:02:59,380 INFO L356 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-03 04:02:59,380 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 70 treesize of output 38 [2022-11-03 04:02:59,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:59,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:59,396 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:02:59,403 INFO L356 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-03 04:02:59,403 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 64 treesize of output 32 [2022-11-03 04:02:59,419 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 04:02:59,436 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:02:59,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:02:59,438 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:02:59,439 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:02:59,447 INFO L356 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-03 04:02:59,448 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 81 treesize of output 33 [2022-11-03 04:03:19,399 INFO L197 IcfgInterpreter]: Interpreting procedure aws_array_list_is_valid with input of size 47 for LOIs [2022-11-03 04:03:19,415 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-03 04:03:19,428 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-03 04:03:19,491 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 04:03:19,499 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 04:03:19,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:03:19,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:03:19,522 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:03:19,522 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 10 [2022-11-03 04:03:19,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:03:19,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:03:19,586 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:03:19,586 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 10 [2022-11-03 04:03:19,602 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 04:03:19,611 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 04:03:19,816 INFO L356 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-03 04:03:19,816 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 180 treesize of output 197 [2022-11-03 04:03:20,400 INFO L197 IcfgInterpreter]: Interpreting procedure aws_mul_size_checked with input of size 94 for LOIs [2022-11-03 04:03:20,677 INFO L197 IcfgInterpreter]: Interpreting procedure __CPROVER_overflow_mult with input of size 80 for LOIs [2022-11-03 04:03:20,696 INFO L197 IcfgInterpreter]: Interpreting procedure aws_array_list_is_bounded with input of size 2826 for LOIs [2022-11-03 04:03:23,872 INFO L197 IcfgInterpreter]: Interpreting procedure ensure_array_list_has_allocated_data_member with input of size 2876 for LOIs [2022-11-03 04:05:20,987 INFO L197 IcfgInterpreter]: Interpreting procedure can_fail_allocator with input of size 2871 for LOIs [2022-11-03 04:05:29,035 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 43 for LOIs [2022-11-03 04:05:29,038 INFO L197 IcfgInterpreter]: Interpreting procedure can_fail_malloc with input of size 88 for LOIs [2022-11-03 04:05:29,197 INFO L197 IcfgInterpreter]: Interpreting procedure nondet_bool with input of size 82 for LOIs [2022-11-03 04:05:29,212 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:09:44,021 WARN L234 SmtUtils]: Spent 4.22m on a formula simplification. DAG size of input: 2822 DAG size of output: 2436 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)