./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_95fcba23-50b6-4be1-8892-6907da77fbc5/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fcba23-50b6-4be1-8892-6907da77fbc5/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fcba23-50b6-4be1-8892-6907da77fbc5/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fcba23-50b6-4be1-8892-6907da77fbc5/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fcba23-50b6-4be1-8892-6907da77fbc5/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fcba23-50b6-4be1-8892-6907da77fbc5/bin/utaipan-gh47qXpMRh --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 4e3d62ab3962e5958dc41169c7885079de47f5dcf75079068205793f151a2e2b --- 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-2329fc7 [2022-12-14 15:48:45,777 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:48:45,779 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:48:45,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:48:45,800 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:48:45,801 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:48:45,802 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:48:45,804 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:48:45,805 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:48:45,806 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:48:45,807 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:48:45,808 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:48:45,809 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:48:45,810 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:48:45,811 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:48:45,812 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:48:45,813 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:48:45,814 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:48:45,815 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:48:45,817 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:48:45,819 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:48:45,820 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:48:45,821 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:48:45,822 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:48:45,826 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:48:45,826 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:48:45,826 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:48:45,827 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:48:45,828 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:48:45,829 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:48:45,829 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:48:45,830 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:48:45,830 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:48:45,831 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:48:45,832 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:48:45,832 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:48:45,833 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:48:45,833 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:48:45,833 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:48:45,834 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:48:45,835 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:48:45,836 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fcba23-50b6-4be1-8892-6907da77fbc5/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 15:48:45,856 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:48:45,856 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:48:45,857 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:48:45,857 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:48:45,857 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:48:45,858 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:48:45,858 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:48:45,858 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:48:45,858 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:48:45,858 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 15:48:45,859 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:48:45,859 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:48:45,859 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 15:48:45,859 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 15:48:45,859 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:48:45,860 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 15:48:45,860 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 15:48:45,860 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 15:48:45,861 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:48:45,861 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 15:48:45,861 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:48:45,861 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 15:48:45,861 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:48:45,862 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 15:48:45,862 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 15:48:45,862 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:48:45,862 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 15:48:45,862 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:48:45,863 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:48:45,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:48:45,863 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:48:45,863 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 15:48:45,863 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:48:45,863 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 15:48:45,864 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 15:48:45,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 15:48:45,864 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 15:48:45,864 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:48:45,864 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_95fcba23-50b6-4be1-8892-6907da77fbc5/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fcba23-50b6-4be1-8892-6907da77fbc5/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e3d62ab3962e5958dc41169c7885079de47f5dcf75079068205793f151a2e2b [2022-12-14 15:48:46,058 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:48:46,077 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:48:46,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:48:46,081 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:48:46,081 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:48:46,082 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fcba23-50b6-4be1-8892-6907da77fbc5/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i [2022-12-14 15:48:48,745 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:48:49,074 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:48:49,074 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fcba23-50b6-4be1-8892-6907da77fbc5/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i [2022-12-14 15:48:49,096 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fcba23-50b6-4be1-8892-6907da77fbc5/bin/utaipan-gh47qXpMRh/data/4d0a41308/addd0000057c46c7a1e6eb3b4f2f57d7/FLAG8fc03263e [2022-12-14 15:48:49,107 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fcba23-50b6-4be1-8892-6907da77fbc5/bin/utaipan-gh47qXpMRh/data/4d0a41308/addd0000057c46c7a1e6eb3b4f2f57d7 [2022-12-14 15:48:49,110 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:48:49,111 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:48:49,112 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:48:49,112 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:48:49,114 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:48:49,115 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:48:49" (1/1) ... [2022-12-14 15:48:49,116 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21d7a775 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:48:49, skipping insertion in model container [2022-12-14 15:48:49,116 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:48:49" (1/1) ... [2022-12-14 15:48:49,122 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:48:49,190 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:48:49,388 WARN L237 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_95fcba23-50b6-4be1-8892-6907da77fbc5/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i[4497,4510] [2022-12-14 15:48:49,394 WARN L237 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_95fcba23-50b6-4be1-8892-6907da77fbc5/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i[4557,4570] [2022-12-14 15:48:49,982 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 15:48:50,040 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 15:48:50,054 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 15:48:50,063 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:48:50,064 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:48:50,065 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:48:50,065 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:48:50,067 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:48:50,077 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 15:48:50,083 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:48:50,083 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:48:50,084 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:48:50,085 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:48:50,086 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:48:50,087 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:48:50,087 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:48:50,087 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:48:50,141 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 15:48:50,142 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 15:48:50,142 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 15:48:50,147 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 15:48:50,149 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 15:48:50,149 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 15:48:50,244 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 15:48:50,336 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 15:48:50,337 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 15:48:50,337 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 15:48:50,338 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 15:48:50,339 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 15:48:50,340 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 15:48:50,340 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 15:48:50,341 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 15:48:50,341 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 15:48:50,342 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 15:48:50,342 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 15:48:50,458 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:48:50,463 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:48:50,482 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 15:48:50,498 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 15:48:50,503 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:48:50,521 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:48:50,530 WARN L237 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_95fcba23-50b6-4be1-8892-6907da77fbc5/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i[4497,4510] [2022-12-14 15:48:50,531 WARN L237 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_95fcba23-50b6-4be1-8892-6907da77fbc5/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i[4557,4570] [2022-12-14 15:48:50,559 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 15:48:50,563 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 15:48:50,569 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 15:48:50,572 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:48:50,572 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:48:50,573 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:48:50,573 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:48:50,573 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:48:50,576 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 15:48:50,579 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:48:50,580 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:48:50,580 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:48:50,581 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:48:50,582 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:48:50,582 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:48:50,583 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:48:50,583 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:48:50,589 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 15:48:50,589 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 15:48:50,590 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 15:48:50,592 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 15:48:50,593 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 15:48:50,594 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 15:48:50,596 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 15:48:50,612 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 15:48:50,613 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 15:48:50,614 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 15:48:50,614 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 15:48:50,615 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 15:48:50,616 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 15:48:50,616 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 15:48:50,616 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 15:48:50,617 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 15:48:50,617 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 15:48:50,618 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 15:48:50,640 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:48:50,644 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:48:50,650 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-12-14 15:48:50,662 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 15:48:50,665 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:48:50,851 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:48:50,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:48:50 WrapperNode [2022-12-14 15:48:50,852 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:48:50,853 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:48:50,853 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:48:50,853 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:48:50,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:48:50" (1/1) ... [2022-12-14 15:48:50,906 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:48:50" (1/1) ... [2022-12-14 15:48:50,941 INFO L138 Inliner]: procedures = 691, calls = 1699, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 615 [2022-12-14 15:48:50,941 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:48:50,942 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:48:50,942 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:48:50,942 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:48:50,949 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:48:50" (1/1) ... [2022-12-14 15:48:50,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:48:50" (1/1) ... [2022-12-14 15:48:50,954 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:48:50" (1/1) ... [2022-12-14 15:48:50,955 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:48:50" (1/1) ... [2022-12-14 15:48:50,972 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:48:50" (1/1) ... [2022-12-14 15:48:50,975 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:48:50" (1/1) ... [2022-12-14 15:48:50,978 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:48:50" (1/1) ... [2022-12-14 15:48:50,981 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:48:50" (1/1) ... [2022-12-14 15:48:50,987 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:48:50,987 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:48:50,987 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:48:50,987 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:48:50,988 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:48:50" (1/1) ... [2022-12-14 15:48:50,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:48:51,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fcba23-50b6-4be1-8892-6907da77fbc5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:48:51,013 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fcba23-50b6-4be1-8892-6907da77fbc5/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:48:51,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fcba23-50b6-4be1-8892-6907da77fbc5/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:48:51,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 15:48:51,049 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-12-14 15:48:51,049 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-12-14 15:48:51,049 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-12-14 15:48:51,049 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-12-14 15:48:51,049 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-12-14 15:48:51,049 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-12-14 15:48:51,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 15:48:51,049 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-12-14 15:48:51,050 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-12-14 15:48:51,050 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 15:48:51,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 15:48:51,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 15:48:51,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 15:48:51,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 15:48:51,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:48:51,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:48:51,050 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-12-14 15:48:51,050 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-12-14 15:48:51,050 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-12-14 15:48:51,051 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-12-14 15:48:51,051 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-12-14 15:48:51,051 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-12-14 15:48:51,051 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-12-14 15:48:51,051 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-12-14 15:48:51,051 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 15:48:51,051 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 15:48:51,051 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2022-12-14 15:48:51,051 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2022-12-14 15:48:51,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 15:48:51,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 15:48:51,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 15:48:51,052 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-12-14 15:48:51,052 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-12-14 15:48:51,052 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-12-14 15:48:51,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-12-14 15:48:51,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 15:48:51,052 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2022-12-14 15:48:51,052 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2022-12-14 15:48:51,052 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2022-12-14 15:48:51,052 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2022-12-14 15:48:51,053 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-12-14 15:48:51,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-12-14 15:48:51,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 15:48:51,265 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:48:51,267 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:48:51,898 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:48:51,986 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:48:51,986 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 15:48:51,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:48:51 BoogieIcfgContainer [2022-12-14 15:48:51,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:48:51,990 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:48:51,990 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:48:51,992 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:48:51,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:48:49" (1/3) ... [2022-12-14 15:48:51,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@430fee37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:48:51, skipping insertion in model container [2022-12-14 15:48:51,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:48:50" (2/3) ... [2022-12-14 15:48:51,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@430fee37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:48:51, skipping insertion in model container [2022-12-14 15:48:51,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:48:51" (3/3) ... [2022-12-14 15:48:51,994 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_pop_back_harness.i [2022-12-14 15:48:52,007 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:48:52,007 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 15:48:52,043 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:48:52,048 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;@4011038, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:48:52,048 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 15:48:52,051 INFO L276 IsEmpty]: Start isEmpty. Operand has 142 states, 76 states have (on average 1.1842105263157894) internal successors, (90), 77 states have internal predecessors, (90), 48 states have call successors, (48), 16 states have call predecessors, (48), 16 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2022-12-14 15:48:52,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-12-14 15:48:52,058 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:48:52,059 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:48:52,059 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:48:52,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:48:52,063 INFO L85 PathProgramCache]: Analyzing trace with hash -835316748, now seen corresponding path program 1 times [2022-12-14 15:48:52,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:48:52,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225806550] [2022-12-14 15:48:52,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:48:52,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:48:52,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:48:52,560 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-12-14 15:48:52,561 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:48:52,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225806550] [2022-12-14 15:48:52,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225806550] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:48:52,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [758359741] [2022-12-14 15:48:52,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:48:52,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:48:52,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fcba23-50b6-4be1-8892-6907da77fbc5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:48:52,563 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fcba23-50b6-4be1-8892-6907da77fbc5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:48:52,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fcba23-50b6-4be1-8892-6907da77fbc5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 15:48:52,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:48:52,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 2116 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 15:48:52,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:48:52,973 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-14 15:48:52,973 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:48:52,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [758359741] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:48:52,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 15:48:52,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2022-12-14 15:48:52,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662370737] [2022-12-14 15:48:52,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:48:52,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:48:52,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:48:53,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:48:53,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:48:53,002 INFO L87 Difference]: Start difference. First operand has 142 states, 76 states have (on average 1.1842105263157894) internal successors, (90), 77 states have internal predecessors, (90), 48 states have call successors, (48), 16 states have call predecessors, (48), 16 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-12-14 15:48:53,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:48:53,400 INFO L93 Difference]: Finished difference Result 255 states and 361 transitions. [2022-12-14 15:48:53,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 15:48:53,402 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 67 [2022-12-14 15:48:53,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:48:53,409 INFO L225 Difference]: With dead ends: 255 [2022-12-14 15:48:53,409 INFO L226 Difference]: Without dead ends: 142 [2022-12-14 15:48:53,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-12-14 15:48:53,414 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 29 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 15:48:53,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 535 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 15:48:53,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-12-14 15:48:53,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2022-12-14 15:48:53,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 76 states have (on average 1.1710526315789473) internal successors, (89), 78 states have internal predecessors, (89), 48 states have call successors, (48), 16 states have call predecessors, (48), 17 states have return successors, (52), 47 states have call predecessors, (52), 47 states have call successors, (52) [2022-12-14 15:48:53,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 189 transitions. [2022-12-14 15:48:53,449 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 189 transitions. Word has length 67 [2022-12-14 15:48:53,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:48:53,450 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 189 transitions. [2022-12-14 15:48:53,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-12-14 15:48:53,450 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 189 transitions. [2022-12-14 15:48:53,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-12-14 15:48:53,452 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:48:53,452 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 4, 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] [2022-12-14 15:48:53,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fcba23-50b6-4be1-8892-6907da77fbc5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 15:48:53,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fcba23-50b6-4be1-8892-6907da77fbc5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:48:53,655 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:48:53,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:48:53,657 INFO L85 PathProgramCache]: Analyzing trace with hash 498004201, now seen corresponding path program 1 times [2022-12-14 15:48:53,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:48:53,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080346946] [2022-12-14 15:48:53,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:48:53,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:48:53,803 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 15:48:53,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1456697969] [2022-12-14 15:48:53,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:48:53,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:48:53,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fcba23-50b6-4be1-8892-6907da77fbc5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:48:53,805 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fcba23-50b6-4be1-8892-6907da77fbc5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:48:53,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fcba23-50b6-4be1-8892-6907da77fbc5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 15:48:54,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:48:54,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 2248 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 15:48:54,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:48:54,232 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-12-14 15:48:54,232 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:48:54,232 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:48:54,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080346946] [2022-12-14 15:48:54,233 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 15:48:54,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456697969] [2022-12-14 15:48:54,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1456697969] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:48:54,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:48:54,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 15:48:54,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919798906] [2022-12-14 15:48:54,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:48:54,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 15:48:54,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:48:54,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 15:48:54,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-14 15:48:54,236 INFO L87 Difference]: Start difference. First operand 142 states and 189 transitions. Second operand has 7 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2022-12-14 15:48:54,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:48:54,654 INFO L93 Difference]: Finished difference Result 244 states and 326 transitions. [2022-12-14 15:48:54,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 15:48:54,655 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 76 [2022-12-14 15:48:54,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:48:54,657 INFO L225 Difference]: With dead ends: 244 [2022-12-14 15:48:54,657 INFO L226 Difference]: Without dead ends: 142 [2022-12-14 15:48:54,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-14 15:48:54,659 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 47 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 15:48:54,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 738 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 15:48:54,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-12-14 15:48:54,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2022-12-14 15:48:54,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 76 states have (on average 1.1710526315789473) internal successors, (89), 78 states have internal predecessors, (89), 48 states have call successors, (48), 16 states have call predecessors, (48), 17 states have return successors, (49), 47 states have call predecessors, (49), 47 states have call successors, (49) [2022-12-14 15:48:54,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 186 transitions. [2022-12-14 15:48:54,676 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 186 transitions. Word has length 76 [2022-12-14 15:48:54,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:48:54,676 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 186 transitions. [2022-12-14 15:48:54,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2022-12-14 15:48:54,677 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 186 transitions. [2022-12-14 15:48:54,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-12-14 15:48:54,679 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:48:54,679 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:48:54,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fcba23-50b6-4be1-8892-6907da77fbc5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 15:48:54,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fcba23-50b6-4be1-8892-6907da77fbc5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:48:54,880 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:48:54,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:48:54,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1518256320, now seen corresponding path program 2 times [2022-12-14 15:48:54,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:48:54,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379481485] [2022-12-14 15:48:54,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:48:54,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:48:54,948 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 15:48:54,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1199655720] [2022-12-14 15:48:54,949 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 15:48:54,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:48:54,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fcba23-50b6-4be1-8892-6907da77fbc5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:48:54,950 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fcba23-50b6-4be1-8892-6907da77fbc5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:48:54,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fcba23-50b6-4be1-8892-6907da77fbc5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 15:48:55,321 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-14 15:48:55,321 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 15:48:55,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 1839 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 15:48:55,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:48:55,353 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-12-14 15:48:55,354 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:48:55,354 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:48:55,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379481485] [2022-12-14 15:48:55,354 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 15:48:55,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1199655720] [2022-12-14 15:48:55,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1199655720] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:48:55,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:48:55,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:48:55,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577382663] [2022-12-14 15:48:55,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:48:55,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:48:55,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:48:55,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:48:55,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:48:55,357 INFO L87 Difference]: Start difference. First operand 142 states and 186 transitions. Second operand has 5 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-14 15:48:55,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:48:55,615 INFO L93 Difference]: Finished difference Result 242 states and 320 transitions. [2022-12-14 15:48:55,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 15:48:55,615 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 85 [2022-12-14 15:48:55,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:48:55,617 INFO L225 Difference]: With dead ends: 242 [2022-12-14 15:48:55,617 INFO L226 Difference]: Without dead ends: 142 [2022-12-14 15:48:55,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:48:55,619 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 0 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 15:48:55,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 604 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 15:48:55,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-12-14 15:48:55,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2022-12-14 15:48:55,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 76 states have (on average 1.1710526315789473) internal successors, (89), 78 states have internal predecessors, (89), 48 states have call successors, (48), 16 states have call predecessors, (48), 17 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2022-12-14 15:48:55,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 185 transitions. [2022-12-14 15:48:55,631 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 185 transitions. Word has length 85 [2022-12-14 15:48:55,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:48:55,631 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 185 transitions. [2022-12-14 15:48:55,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-14 15:48:55,631 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 185 transitions. [2022-12-14 15:48:55,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-12-14 15:48:55,632 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:48:55,632 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 4, 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] [2022-12-14 15:48:55,639 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fcba23-50b6-4be1-8892-6907da77fbc5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 15:48:55,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fcba23-50b6-4be1-8892-6907da77fbc5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:48:55,834 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:48:55,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:48:55,835 INFO L85 PathProgramCache]: Analyzing trace with hash 2061211789, now seen corresponding path program 3 times [2022-12-14 15:48:55,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:48:55,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032880188] [2022-12-14 15:48:55,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:48:55,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:48:55,906 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 15:48:55,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1524224572] [2022-12-14 15:48:55,906 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-14 15:48:55,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:48:55,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fcba23-50b6-4be1-8892-6907da77fbc5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:48:55,907 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fcba23-50b6-4be1-8892-6907da77fbc5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:48:55,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fcba23-50b6-4be1-8892-6907da77fbc5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 15:48:56,262 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-14 15:48:56,262 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 15:48:56,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 2512 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 15:48:56,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:48:56,344 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-12-14 15:48:56,344 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:48:56,344 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:48:56,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032880188] [2022-12-14 15:48:56,344 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 15:48:56,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524224572] [2022-12-14 15:48:56,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524224572] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:48:56,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:48:56,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 15:48:56,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358269690] [2022-12-14 15:48:56,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:48:56,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 15:48:56,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:48:56,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 15:48:56,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-14 15:48:56,347 INFO L87 Difference]: Start difference. First operand 142 states and 185 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 7 states have internal predecessors, (32), 5 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2022-12-14 15:48:56,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:48:56,726 INFO L93 Difference]: Finished difference Result 241 states and 316 transitions. [2022-12-14 15:48:56,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 15:48:56,726 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 7 states have internal predecessors, (32), 5 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) Word has length 94 [2022-12-14 15:48:56,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:48:56,727 INFO L225 Difference]: With dead ends: 241 [2022-12-14 15:48:56,727 INFO L226 Difference]: Without dead ends: 140 [2022-12-14 15:48:56,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-12-14 15:48:56,729 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 51 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 15:48:56,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 966 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 15:48:56,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-12-14 15:48:56,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2022-12-14 15:48:56,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 75 states have (on average 1.16) internal successors, (87), 76 states have internal predecessors, (87), 48 states have call successors, (48), 16 states have call predecessors, (48), 16 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2022-12-14 15:48:56,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 182 transitions. [2022-12-14 15:48:56,736 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 182 transitions. Word has length 94 [2022-12-14 15:48:56,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:48:56,736 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 182 transitions. [2022-12-14 15:48:56,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 7 states have internal predecessors, (32), 5 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2022-12-14 15:48:56,737 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 182 transitions. [2022-12-14 15:48:56,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-12-14 15:48:56,737 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:48:56,738 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:48:56,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fcba23-50b6-4be1-8892-6907da77fbc5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-14 15:48:56,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fcba23-50b6-4be1-8892-6907da77fbc5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:48:56,940 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:48:56,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:48:56,941 INFO L85 PathProgramCache]: Analyzing trace with hash -660188454, now seen corresponding path program 1 times [2022-12-14 15:48:56,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:48:56,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450424188] [2022-12-14 15:48:56,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:48:56,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:48:57,040 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 15:48:57,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1898851768] [2022-12-14 15:48:57,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:48:57,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:48:57,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fcba23-50b6-4be1-8892-6907da77fbc5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:48:57,041 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fcba23-50b6-4be1-8892-6907da77fbc5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:48:57,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fcba23-50b6-4be1-8892-6907da77fbc5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 15:48:58,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:48:58,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 2644 conjuncts, 411 conjunts are in the unsatisfiable core [2022-12-14 15:48:58,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:48:58,659 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:48:59,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:48:59,144 INFO L350 Elim1Store]: Elim1 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 21 treesize of output 20 [2022-12-14 15:48:59,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:48:59,150 INFO L350 Elim1Store]: Elim1 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 21 treesize of output 20 [2022-12-14 15:48:59,479 INFO L350 Elim1Store]: Elim1 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 6 treesize of output 5 [2022-12-14 15:49:00,294 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-12-14 15:49:00,294 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 37 [2022-12-14 15:49:00,302 INFO L350 Elim1Store]: Elim1 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 21 treesize of output 20 [2022-12-14 15:49:00,310 INFO L350 Elim1Store]: Elim1 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 21 treesize of output 20 [2022-12-14 15:49:00,588 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-12-14 15:49:00,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 37 [2022-12-14 15:49:03,145 INFO L321 Elim1Store]: treesize reduction 91, result has 30.0 percent of original size [2022-12-14 15:49:03,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 46 treesize of output 69 [2022-12-14 15:49:03,161 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 15:49:03,171 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-14 15:49:03,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 15:49:05,175 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:49:05,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:49:05,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:49:05,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:49:05,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 152 treesize of output 181 [2022-12-14 15:49:05,248 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 15:49:05,248 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 96 treesize of output 129 [2022-12-14 15:49:05,306 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 15:49:05,307 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 93 treesize of output 125 [2022-12-14 15:49:05,377 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 15:49:05,378 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 86 treesize of output 119 [2022-12-14 15:49:06,610 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-12-14 15:49:06,610 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 76 treesize of output 60 [2022-12-14 15:49:06,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2022-12-14 15:49:06,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:49:06,831 INFO L321 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-12-14 15:49:06,832 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 76 treesize of output 72 [2022-12-14 15:49:06,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2022-12-14 15:49:06,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:49:06,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:49:06,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:49:06,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:49:06,886 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 43 [2022-12-14 15:49:16,149 INFO L321 Elim1Store]: treesize reduction 33, result has 2.9 percent of original size [2022-12-14 15:49:16,150 INFO L350 Elim1Store]: Elim1 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 2 case distinctions, treesize of input 45 treesize of output 27 [2022-12-14 15:49:21,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:49:21,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:49:21,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:49:21,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:49:21,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 51 [2022-12-14 15:49:30,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:49:30,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:49:30,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:49:30,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:49:30,610 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 51 [2022-12-14 15:49:33,086 INFO L321 Elim1Store]: treesize reduction 33, result has 2.9 percent of original size [2022-12-14 15:49:33,086 INFO L350 Elim1Store]: Elim1 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 2 case distinctions, treesize of input 25 treesize of output 9 [2022-12-14 15:49:43,778 WARN L233 SmtUtils]: Spent 5.15s on a formula simplification. DAG size of input: 150 DAG size of output: 64 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:50:19,742 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 7 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 498 treesize of output 809 [2022-12-14 15:50:20,736 INFO L321 Elim1Store]: treesize reduction 126, result has 28.4 percent of original size [2022-12-14 15:50:20,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 7 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 11 new quantified variables, introduced 7 case distinctions, treesize of input 486 treesize of output 864 [2022-12-14 15:50:21,100 INFO L217 Elim1Store]: Index analysis took 266 ms [2022-12-14 15:50:21,103 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 7 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 316 treesize of output 627 [2022-12-14 15:50:22,085 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 22 proven. 71 refuted. 2 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-14 15:50:22,085 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:50:37,443 WARN L233 SmtUtils]: Spent 14.82s on a formula simplification that was a NOOP. DAG size: 225 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 15:50:45,457 WARN L233 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 173 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 15:51:25,643 WARN L233 SmtUtils]: Spent 40.17s on a formula simplification. DAG size of input: 396 DAG size of output: 192 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 15:51:39,974 WARN L233 SmtUtils]: Spent 14.33s on a formula simplification that was a NOOP. DAG size: 184 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 15:52:26,890 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:52:26,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450424188] [2022-12-14 15:52:26,890 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 15:52:26,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1898851768] [2022-12-14 15:52:26,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1898851768] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:52:26,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [806347027] [2022-12-14 15:52:26,905 INFO L159 IcfgInterpreter]: Started Sifa with 55 locations of interest [2022-12-14 15:52:26,905 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:52:26,908 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:52:26,911 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:52:26,911 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:52:29,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:52:29,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:52:29,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:52:29,590 INFO L217 Elim1Store]: Index analysis took 338 ms [2022-12-14 15:52:41,071 WARN L233 SmtUtils]: Spent 11.45s on a formula simplification. DAG size of input: 1740 DAG size of output: 1157 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 15:52:41,074 INFO L321 Elim1Store]: treesize reduction 1938, result has 47.2 percent of original size [2022-12-14 15:52:41,078 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 196 select indices, 196 select index equivalence classes, 19114 disjoint index pairs (out of 19110 index pairs), introduced 196 new quantified variables, introduced 193 case distinctions, treesize of input 987 treesize of output 2338 [2022-12-14 15:52:43,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:52:43,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:52:44,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:52:44,420 INFO L217 Elim1Store]: Index analysis took 629 ms [2022-12-14 15:53:02,194 WARN L233 SmtUtils]: Spent 17.75s on a formula simplification. DAG size of input: 2128 DAG size of output: 1161 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 15:53:02,197 INFO L321 Elim1Store]: treesize reduction 3474, result has 33.3 percent of original size [2022-12-14 15:53:02,200 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 198 select indices, 198 select index equivalence classes, 19310 disjoint index pairs (out of 19503 index pairs), introduced 198 new quantified variables, introduced 386 case distinctions, treesize of input 997 treesize of output 2357 [2022-12-14 15:54:05,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:05,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:05,176 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:54:05,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:05,184 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:54:05,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:05,190 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:54:05,197 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:54:07,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:08,001 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-12-14 15:54:08,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 198 select indices, 198 select index equivalence classes, 19501 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 [2022-12-14 15:54:08,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:08,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:08,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:08,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:08,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:08,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:08,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:08,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:08,514 INFO L217 Elim1Store]: Index analysis took 114 ms [2022-12-14 15:54:08,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:08,527 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:54:08,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:08,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:08,539 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:54:08,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:08,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:08,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:08,608 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-12-14 15:54:08,613 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:54:08,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:08,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:08,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 197 select indices, 197 select index equivalence classes, 19309 disjoint index pairs (out of 19306 index pairs), introduced 197 new quantified variables, introduced 0 case distinctions, treesize of input 986 treesize of output 592 [2022-12-14 15:54:09,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 195 select indices, 195 select index equivalence classes, 17052 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 [2022-12-14 15:54:09,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:09,773 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 55 select indices, 55 select index equivalence classes, 1243 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 [2022-12-14 15:54:18,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:18,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:18,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:18,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:18,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:18,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:18,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:18,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:18,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:18,391 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:54:18,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:18,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:18,396 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:54:18,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:18,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:18,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:18,441 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-12-14 15:54:18,444 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:54:18,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:18,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:18,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:18,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:18,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:18,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:18,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:18,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:18,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:18,888 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:54:18,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:18,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:18,892 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:54:18,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:18,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:18,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:18,951 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-12-14 15:54:18,954 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:54:19,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:19,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:19,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:19,493 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 198 select indices, 198 select index equivalence classes, 19505 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 [2022-12-14 15:54:19,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:19,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:19,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:19,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 197 select indices, 197 select index equivalence classes, 19309 disjoint index pairs (out of 19306 index pairs), introduced 197 new quantified variables, introduced 0 case distinctions, treesize of input 986 treesize of output 592 [2022-12-14 15:54:20,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:20,260 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 55 select indices, 55 select index equivalence classes, 1243 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 [2022-12-14 15:54:21,256 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:54:21,261 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:54:21,278 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:54:21,281 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:54:21,310 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:54:21,314 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:54:21,319 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:54:21,326 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:54:21,350 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:54:21,354 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:54:21,371 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 15:54:21,372 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:54:21,403 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:54:21,407 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:54:21,435 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 15:54:21,435 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:54:21,550 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:54:22,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 197 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 [2022-12-14 15:54:22,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:22,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 197 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 [2022-12-14 15:54:22,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:22,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 197 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 [2022-12-14 15:54:23,811 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 197 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 [2022-12-14 15:54:23,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:23,904 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 197 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 [2022-12-14 15:54:23,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:23,939 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 197 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 [2022-12-14 15:54:24,498 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-12-14 15:54:24,498 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:54:24,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-12-14 15:54:42,863 INFO L197 IcfgInterpreter]: Interpreting procedure aws_array_list_pop_back with input of size 133 for LOIs [2022-12-14 15:54:44,048 INFO L197 IcfgInterpreter]: Interpreting procedure aws_array_list_length with input of size 69 for LOIs [2022-12-14 15:54:44,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-12-14 15:54:44,544 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-12-14 15:54:44,719 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 43 for LOIs [2022-12-14 15:54:44,728 INFO L197 IcfgInterpreter]: Interpreting procedure aws_array_list_is_valid with input of size 48 for LOIs [2022-12-14 15:54:44,744 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:54:44,751 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:54:44,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:44,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:44,812 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 15:54:44,812 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:54:44,819 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:54:44,825 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:54:44,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:44,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:54:44,884 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 15:54:44,884 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:54:44,894 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:54:44,901 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:54:45,052 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-12-14 15:54:45,052 INFO L350 Elim1Store]: Elim1 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 174 treesize of output 191 [2022-12-14 15:54:45,528 INFO L197 IcfgInterpreter]: Interpreting procedure aws_array_list_is_bounded with input of size 2819 for LOIs [2022-12-14 15:54:48,691 INFO L197 IcfgInterpreter]: Interpreting procedure aws_mul_size_checked with input of size 108 for LOIs [2022-12-14 15:54:49,268 INFO L197 IcfgInterpreter]: Interpreting procedure __CPROVER_overflow_mult with input of size 94 for LOIs [2022-12-14 15:54:49,293 INFO L197 IcfgInterpreter]: Interpreting procedure ensure_array_list_has_allocated_data_member with input of size 2869 for LOIs [2022-12-14 15:56:32,173 INFO L197 IcfgInterpreter]: Interpreting procedure can_fail_allocator with input of size 2864 for LOIs [2022-12-14 15:56:38,844 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 2894 for LOIs [2022-12-14 15:56:51,558 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:58:43,582 WARN L233 SmtUtils]: Spent 1.71m on a formula simplification. DAG size of input: 2815 DAG size of output: 2431 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 16:00:52,401 WARN L233 SmtUtils]: Spent 2.00m on a formula simplification. DAG size of input: 2819 DAG size of output: 2435 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 16:03:32,070 WARN L233 SmtUtils]: Spent 2.51m on a formula simplification. DAG size of input: 2861 DAG size of output: 2477 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)