./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_68fd92d7-fab4-4de4-8dea-f7512ce6a093/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd92d7-fab4-4de4-8dea-f7512ce6a093/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd92d7-fab4-4de4-8dea-f7512ce6a093/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd92d7-fab4-4de4-8dea-f7512ce6a093/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd92d7-fab4-4de4-8dea-f7512ce6a093/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd92d7-fab4-4de4-8dea-f7512ce6a093/bin/utaipan-g80aRyZoba --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 971edb75bb0f677639f0c3e5b019bf9afe7575a35e63ddba584727b568db50c6 --- 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-b5237d8 [2022-11-22 02:12:28,918 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:12:28,920 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:12:28,959 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:12:28,959 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:12:28,963 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:12:28,966 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:12:28,972 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:12:28,974 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:12:28,979 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:12:28,980 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:12:28,981 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:12:28,981 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:12:28,982 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:12:28,983 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:12:28,984 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:12:28,984 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:12:28,985 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:12:28,987 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:12:28,988 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:12:28,990 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:12:28,995 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:12:28,997 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:12:28,998 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:12:29,012 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:12:29,013 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:12:29,013 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:12:29,014 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:12:29,015 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:12:29,015 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:12:29,016 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:12:29,017 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:12:29,017 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:12:29,018 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:12:29,019 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:12:29,020 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:12:29,020 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:12:29,021 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:12:29,021 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:12:29,022 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:12:29,022 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:12:29,023 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd92d7-fab4-4de4-8dea-f7512ce6a093/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 02:12:29,043 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:12:29,043 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:12:29,044 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:12:29,044 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:12:29,045 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:12:29,045 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:12:29,046 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:12:29,046 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:12:29,046 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:12:29,046 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:12:29,047 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:12:29,048 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:12:29,048 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:12:29,048 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:12:29,048 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:12:29,049 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:12:29,049 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:12:29,049 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:12:29,050 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:12:29,050 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:12:29,050 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:12:29,050 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:12:29,051 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:12:29,051 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:12:29,051 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:12:29,051 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:12:29,052 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:12:29,052 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:12:29,053 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:12:29,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:12:29,053 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:12:29,054 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:12:29,054 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:12:29,054 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:12:29,054 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:12:29,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:12:29,055 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:12:29,055 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:12:29,055 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_68fd92d7-fab4-4de4-8dea-f7512ce6a093/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd92d7-fab4-4de4-8dea-f7512ce6a093/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 971edb75bb0f677639f0c3e5b019bf9afe7575a35e63ddba584727b568db50c6 [2022-11-22 02:12:29,379 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:12:29,417 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:12:29,420 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:12:29,422 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:12:29,422 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:12:29,423 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd92d7-fab4-4de4-8dea-f7512ce6a093/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i [2022-11-22 02:12:32,630 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:12:33,187 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:12:33,188 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd92d7-fab4-4de4-8dea-f7512ce6a093/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i [2022-11-22 02:12:33,233 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd92d7-fab4-4de4-8dea-f7512ce6a093/bin/utaipan-g80aRyZoba/data/749365ebe/6ad8e8e5d3a641ad886902fcf5589ef3/FLAG13bbcafcf [2022-11-22 02:12:33,254 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd92d7-fab4-4de4-8dea-f7512ce6a093/bin/utaipan-g80aRyZoba/data/749365ebe/6ad8e8e5d3a641ad886902fcf5589ef3 [2022-11-22 02:12:33,258 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:12:33,261 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:12:33,264 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:12:33,264 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:12:33,267 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:12:33,269 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:12:33" (1/1) ... [2022-11-22 02:12:33,270 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e013cce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:33, skipping insertion in model container [2022-11-22 02:12:33,270 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:12:33" (1/1) ... [2022-11-22 02:12:33,278 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:12:33,401 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:12:33,661 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_68fd92d7-fab4-4de4-8dea-f7512ce6a093/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4498,4511] [2022-11-22 02:12:33,671 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_68fd92d7-fab4-4de4-8dea-f7512ce6a093/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4558,4571] [2022-11-22 02:12:34,622 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-22 02:12:34,732 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:12:34,733 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:12:34,734 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:12:34,735 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:12:34,736 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:12:34,754 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:12:34,758 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:12:34,760 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:12:34,760 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:12:34,762 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:12:34,764 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:12:34,764 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:12:34,765 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:12:35,276 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-22 02:12:35,277 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-22 02:12:35,279 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-22 02:12:35,280 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-22 02:12:35,281 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-22 02:12:35,282 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-22 02:12:35,284 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-22 02:12:35,284 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-22 02:12:35,285 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-22 02:12:35,286 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-22 02:12:35,505 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:12:35,523 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:12:35,624 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:12:35,667 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:12:35,694 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_68fd92d7-fab4-4de4-8dea-f7512ce6a093/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4498,4511] [2022-11-22 02:12:35,698 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_68fd92d7-fab4-4de4-8dea-f7512ce6a093/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4558,4571] [2022-11-22 02:12:35,752 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-22 02:12:35,769 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:12:35,770 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:12:35,770 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:12:35,771 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:12:35,772 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:12:35,779 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:12:35,780 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:12:35,781 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:12:35,782 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:12:35,783 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:12:35,784 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:12:35,785 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:12:35,785 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:12:35,820 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-22 02:12:35,820 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-22 02:12:35,821 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-22 02:12:35,822 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-22 02:12:35,823 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-22 02:12:35,824 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-22 02:12:35,824 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-22 02:12:35,825 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-22 02:12:35,825 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-22 02:12:35,826 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-22 02:12:35,852 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:12:35,857 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:12:35,879 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:12:36,103 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:12:36,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:36 WrapperNode [2022-11-22 02:12:36,104 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:12:36,105 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:12:36,105 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:12:36,105 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:12:36,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:36" (1/1) ... [2022-11-22 02:12:36,212 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:36" (1/1) ... [2022-11-22 02:12:36,276 INFO L138 Inliner]: procedures = 691, calls = 1683, calls flagged for inlining = 51, calls inlined = 10, statements flattened = 683 [2022-11-22 02:12:36,276 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:12:36,277 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:12:36,277 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:12:36,277 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:12:36,287 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:36" (1/1) ... [2022-11-22 02:12:36,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:36" (1/1) ... [2022-11-22 02:12:36,300 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:36" (1/1) ... [2022-11-22 02:12:36,301 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:36" (1/1) ... [2022-11-22 02:12:36,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:36" (1/1) ... [2022-11-22 02:12:36,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:36" (1/1) ... [2022-11-22 02:12:36,364 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:36" (1/1) ... [2022-11-22 02:12:36,382 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:36" (1/1) ... [2022-11-22 02:12:36,400 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:12:36,401 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:12:36,401 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:12:36,401 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:12:36,402 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:36" (1/1) ... [2022-11-22 02:12:36,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:12:36,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd92d7-fab4-4de4-8dea-f7512ce6a093/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:12:36,440 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd92d7-fab4-4de4-8dea-f7512ce6a093/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:12:36,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd92d7-fab4-4de4-8dea-f7512ce6a093/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:12:36,537 INFO L130 BoogieDeclarations]: Found specification of procedure memmove_impl [2022-11-22 02:12:36,537 INFO L138 BoogieDeclarations]: Found implementation of procedure memmove_impl [2022-11-22 02:12:36,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:12:36,538 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-11-22 02:12:36,538 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-11-22 02:12:36,538 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-11-22 02:12:36,538 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-11-22 02:12:36,539 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-22 02:12:36,540 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-22 02:12:36,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:12:36,540 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-22 02:12:36,540 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-22 02:12:36,540 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-22 02:12:36,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-22 02:12:36,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 02:12:36,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:12:36,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 02:12:36,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:12:36,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:12:36,542 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-22 02:12:36,543 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-22 02:12:36,543 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-22 02:12:36,543 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-22 02:12:36,543 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-22 02:12:36,543 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-22 02:12:36,544 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-11-22 02:12:36,544 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-11-22 02:12:36,544 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-22 02:12:36,544 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-22 02:12:36,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:12:36,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 02:12:36,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 02:12:36,545 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-22 02:12:36,545 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-22 02:12:36,545 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-22 02:12:36,546 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-22 02:12:36,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:12:36,547 INFO L130 BoogieDeclarations]: Found specification of procedure my_memmove [2022-11-22 02:12:36,548 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memmove [2022-11-22 02:12:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_front [2022-11-22 02:12:36,548 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_front [2022-11-22 02:12:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-11-22 02:12:36,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-11-22 02:12:36,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:12:36,959 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:12:36,961 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:12:38,023 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:12:38,237 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:12:38,237 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 02:12:38,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:12:38 BoogieIcfgContainer [2022-11-22 02:12:38,241 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:12:38,246 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:12:38,246 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:12:38,249 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:12:38,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:12:33" (1/3) ... [2022-11-22 02:12:38,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5505fb83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:12:38, skipping insertion in model container [2022-11-22 02:12:38,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:36" (2/3) ... [2022-11-22 02:12:38,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5505fb83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:12:38, skipping insertion in model container [2022-11-22 02:12:38,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:12:38" (3/3) ... [2022-11-22 02:12:38,259 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_pop_front_harness.i [2022-11-22 02:12:38,280 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:12:38,280 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 02:12:38,354 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:12:38,367 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;@5c7cab67, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:12:38,367 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 02:12:38,372 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 80 states have (on average 1.175) internal successors, (94), 81 states have internal predecessors, (94), 57 states have call successors, (57), 16 states have call predecessors, (57), 16 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2022-11-22 02:12:38,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-22 02:12:38,389 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:12:38,390 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] [2022-11-22 02:12:38,391 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:12:38,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:12:38,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1395494391, now seen corresponding path program 1 times [2022-11-22 02:12:38,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:12:38,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311511393] [2022-11-22 02:12:38,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:12:38,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:12:38,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:12:39,528 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-22 02:12:39,529 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:12:39,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311511393] [2022-11-22 02:12:39,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311511393] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:12:39,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592064364] [2022-11-22 02:12:39,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:12:39,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:12:39,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd92d7-fab4-4de4-8dea-f7512ce6a093/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:12:39,534 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd92d7-fab4-4de4-8dea-f7512ce6a093/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:12:39,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd92d7-fab4-4de4-8dea-f7512ce6a093/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 02:12:40,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:12:40,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 2116 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 02:12:40,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:12:40,224 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-22 02:12:40,224 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:12:40,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592064364] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:12:40,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 02:12:40,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2022-11-22 02:12:40,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334268443] [2022-11-22 02:12:40,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:12:40,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:12:40,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:12:40,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:12:40,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:12:40,285 INFO L87 Difference]: Start difference. First operand has 155 states, 80 states have (on average 1.175) internal successors, (94), 81 states have internal predecessors, (94), 57 states have call successors, (57), 16 states have call predecessors, (57), 16 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) 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) [2022-11-22 02:12:40,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:12:40,950 INFO L93 Difference]: Finished difference Result 281 states and 414 transitions. [2022-11-22 02:12:40,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:12:40,953 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 [2022-11-22 02:12:40,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:12:40,963 INFO L225 Difference]: With dead ends: 281 [2022-11-22 02:12:40,963 INFO L226 Difference]: Without dead ends: 155 [2022-11-22 02:12:40,967 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 [2022-11-22 02:12:40,970 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 29 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-22 02:12:40,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 593 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-22 02:12:40,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2022-11-22 02:12:41,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2022-11-22 02:12:41,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 80 states have (on average 1.1625) internal successors, (93), 82 states have internal predecessors, (93), 57 states have call successors, (57), 16 states have call predecessors, (57), 17 states have return successors, (66), 56 states have call predecessors, (66), 56 states have call successors, (66) [2022-11-22 02:12:41,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 216 transitions. [2022-11-22 02:12:41,027 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 216 transitions. Word has length 67 [2022-11-22 02:12:41,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:12:41,027 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 216 transitions. [2022-11-22 02:12:41,028 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) [2022-11-22 02:12:41,028 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 216 transitions. [2022-11-22 02:12:41,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-22 02:12:41,031 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:12:41,031 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] [2022-11-22 02:12:41,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd92d7-fab4-4de4-8dea-f7512ce6a093/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 02:12:41,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd92d7-fab4-4de4-8dea-f7512ce6a093/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:12:41,241 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:12:41,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:12:41,242 INFO L85 PathProgramCache]: Analyzing trace with hash -2016367126, now seen corresponding path program 1 times [2022-11-22 02:12:41,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:12:41,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780166028] [2022-11-22 02:12:41,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:12:41,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:12:41,333 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 02:12:41,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2018720026] [2022-11-22 02:12:41,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:12:41,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:12:41,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd92d7-fab4-4de4-8dea-f7512ce6a093/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:12:41,336 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd92d7-fab4-4de4-8dea-f7512ce6a093/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:12:41,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd92d7-fab4-4de4-8dea-f7512ce6a093/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 02:12:41,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:12:41,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 2248 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-22 02:12:41,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:12:41,949 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-22 02:12:41,949 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:12:41,949 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:12:41,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780166028] [2022-11-22 02:12:41,950 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 02:12:41,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018720026] [2022-11-22 02:12:41,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018720026] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:12:41,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:12:41,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:12:41,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305860569] [2022-11-22 02:12:41,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:12:41,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 02:12:41,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:12:41,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 02:12:41,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:12:41,953 INFO L87 Difference]: Start difference. First operand 155 states and 216 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) [2022-11-22 02:12:42,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:12:42,650 INFO L93 Difference]: Finished difference Result 270 states and 380 transitions. [2022-11-22 02:12:42,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 02:12:42,651 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 [2022-11-22 02:12:42,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:12:42,657 INFO L225 Difference]: With dead ends: 270 [2022-11-22 02:12:42,658 INFO L226 Difference]: Without dead ends: 155 [2022-11-22 02:12:42,659 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 [2022-11-22 02:12:42,660 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 65 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-22 02:12:42,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 823 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-22 02:12:42,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2022-11-22 02:12:42,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2022-11-22 02:12:42,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 80 states have (on average 1.1625) internal successors, (93), 82 states have internal predecessors, (93), 57 states have call successors, (57), 16 states have call predecessors, (57), 17 states have return successors, (63), 56 states have call predecessors, (63), 56 states have call successors, (63) [2022-11-22 02:12:42,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 213 transitions. [2022-11-22 02:12:42,678 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 213 transitions. Word has length 76 [2022-11-22 02:12:42,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:12:42,679 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 213 transitions. [2022-11-22 02:12:42,679 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) [2022-11-22 02:12:42,679 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 213 transitions. [2022-11-22 02:12:42,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-22 02:12:42,681 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:12:42,682 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] [2022-11-22 02:12:42,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd92d7-fab4-4de4-8dea-f7512ce6a093/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 02:12:42,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd92d7-fab4-4de4-8dea-f7512ce6a093/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-22 02:12:42,892 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:12:42,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:12:42,897 INFO L85 PathProgramCache]: Analyzing trace with hash 214627117, now seen corresponding path program 2 times [2022-11-22 02:12:42,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:12:42,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905262847] [2022-11-22 02:12:42,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:12:42,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:12:43,038 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 02:12:43,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2058118137] [2022-11-22 02:12:43,041 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 02:12:43,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:12:43,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd92d7-fab4-4de4-8dea-f7512ce6a093/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:12:43,044 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd92d7-fab4-4de4-8dea-f7512ce6a093/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:12:43,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd92d7-fab4-4de4-8dea-f7512ce6a093/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 02:12:43,588 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-22 02:12:43,588 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 02:12:43,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 1839 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-22 02:12:43,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:12:43,717 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-11-22 02:12:43,718 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:12:43,718 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:12:43,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905262847] [2022-11-22 02:12:43,719 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 02:12:43,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2058118137] [2022-11-22 02:12:43,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2058118137] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:12:43,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:12:43,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:12:43,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760925264] [2022-11-22 02:12:43,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:12:43,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:12:43,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:12:43,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:12:43,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:12:43,723 INFO L87 Difference]: Start difference. First operand 155 states and 213 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) [2022-11-22 02:12:44,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:12:44,143 INFO L93 Difference]: Finished difference Result 268 states and 375 transitions. [2022-11-22 02:12:44,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:12:44,144 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 [2022-11-22 02:12:44,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:12:44,148 INFO L225 Difference]: With dead ends: 268 [2022-11-22 02:12:44,151 INFO L226 Difference]: Without dead ends: 155 [2022-11-22 02:12:44,152 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 [2022-11-22 02:12:44,153 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 0 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:12:44,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 687 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 02:12:44,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2022-11-22 02:12:44,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2022-11-22 02:12:44,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 80 states have (on average 1.1625) internal successors, (93), 82 states have internal predecessors, (93), 57 states have call successors, (57), 16 states have call predecessors, (57), 17 states have return successors, (62), 56 states have call predecessors, (62), 56 states have call successors, (62) [2022-11-22 02:12:44,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 212 transitions. [2022-11-22 02:12:44,186 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 212 transitions. Word has length 85 [2022-11-22 02:12:44,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:12:44,187 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 212 transitions. [2022-11-22 02:12:44,188 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) [2022-11-22 02:12:44,188 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 212 transitions. [2022-11-22 02:12:44,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-22 02:12:44,200 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:12:44,200 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] [2022-11-22 02:12:44,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd92d7-fab4-4de4-8dea-f7512ce6a093/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-22 02:12:44,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd92d7-fab4-4de4-8dea-f7512ce6a093/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:12:44,415 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:12:44,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:12:44,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1757082170, now seen corresponding path program 3 times [2022-11-22 02:12:44,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:12:44,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697648104] [2022-11-22 02:12:44,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:12:44,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:12:44,497 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 02:12:44,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [45726589] [2022-11-22 02:12:44,498 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-22 02:12:44,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:12:44,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd92d7-fab4-4de4-8dea-f7512ce6a093/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:12:44,499 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd92d7-fab4-4de4-8dea-f7512ce6a093/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:12:44,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd92d7-fab4-4de4-8dea-f7512ce6a093/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 02:12:45,111 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-22 02:12:45,112 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 02:12:45,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 2512 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-22 02:12:45,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:12:45,219 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-22 02:12:45,220 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:12:45,220 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:12:45,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697648104] [2022-11-22 02:12:45,220 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 02:12:45,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [45726589] [2022-11-22 02:12:45,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [45726589] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:12:45,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:12:45,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-22 02:12:45,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958964034] [2022-11-22 02:12:45,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:12:45,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-22 02:12:45,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:12:45,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-22 02:12:45,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-22 02:12:45,222 INFO L87 Difference]: Start difference. First operand 155 states and 212 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) [2022-11-22 02:12:46,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:12:46,046 INFO L93 Difference]: Finished difference Result 277 states and 384 transitions. [2022-11-22 02:12:46,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 02:12:46,047 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 [2022-11-22 02:12:46,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:12:46,049 INFO L225 Difference]: With dead ends: 277 [2022-11-22 02:12:46,049 INFO L226 Difference]: Without dead ends: 165 [2022-11-22 02:12:46,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-11-22 02:12:46,051 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 69 mSDsluCounter, 960 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 1124 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:12:46,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 1124 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 02:12:46,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-11-22 02:12:46,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2022-11-22 02:12:46,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 84 states have (on average 1.1547619047619047) internal successors, (97), 86 states have internal predecessors, (97), 62 states have call successors, (62), 17 states have call predecessors, (62), 18 states have return successors, (67), 61 states have call predecessors, (67), 61 states have call successors, (67) [2022-11-22 02:12:46,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 226 transitions. [2022-11-22 02:12:46,069 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 226 transitions. Word has length 94 [2022-11-22 02:12:46,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:12:46,069 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 226 transitions. [2022-11-22 02:12:46,070 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) [2022-11-22 02:12:46,070 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 226 transitions. [2022-11-22 02:12:46,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-22 02:12:46,071 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:12:46,071 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] [2022-11-22 02:12:46,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd92d7-fab4-4de4-8dea-f7512ce6a093/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 02:12:46,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd92d7-fab4-4de4-8dea-f7512ce6a093/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:12:46,281 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:12:46,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:12:46,282 INFO L85 PathProgramCache]: Analyzing trace with hash -434979561, now seen corresponding path program 1 times [2022-11-22 02:12:46,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:12:46,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865860179] [2022-11-22 02:12:46,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:12:46,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:12:46,378 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 02:12:46,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [243858640] [2022-11-22 02:12:46,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:12:46,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:12:46,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd92d7-fab4-4de4-8dea-f7512ce6a093/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:12:46,380 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd92d7-fab4-4de4-8dea-f7512ce6a093/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:12:46,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fd92d7-fab4-4de4-8dea-f7512ce6a093/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-22 02:12:48,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:12:48,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 2644 conjuncts, 398 conjunts are in the unsatisfiable core [2022-11-22 02:12:48,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:12:48,153 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 [2022-11-22 02:12:49,212 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 34 treesize of output 36 [2022-11-22 02:12:49,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:49,369 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 [2022-11-22 02:12:49,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:12:49,386 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 [2022-11-22 02:13:00,023 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_aws_array_list_is_valid_#in~list.base|)) (.cse1 (+ |c_aws_array_list_is_valid_#in~list.offset| 24))) (let ((.cse4 (let ((.cse7 (select |c_old(#memory_int)| |c_aws_array_list_is_valid_#in~list.base|))) (* (select .cse7 .cse1) (select .cse7 (+ |c_aws_array_list_is_valid_#in~list.offset| 16))))) (.cse3 (mod (select .cse0 (+ |c_aws_array_list_is_valid_#in~list.offset| 8)) 18446744073709551616)) (.cse2 (= |c_aws_array_list_is_valid_#res| 0))) (or (and (or (and (= |c_aws_array_list_is_valid_#res| 1) (not (= (mod (select .cse0 .cse1) 18446744073709551616) 0))) .cse2) (exists ((v_ArrVal_419 Int) (v_ArrVal_418 Int) (|v_aws_array_list_is_valid_~#required_size~0.base_17| Int) (v_ArrVal_420 (Array Int Int)) (|v___CPROVER_overflow_mult_~#c~1.base_28| Int) (v_ArrVal_422 (Array Int Int)) (v_ArrVal_424 Int)) (let ((.cse5 (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_17| v_ArrVal_418))) (and (<= (mod (select (select |c_#memory_int| |v_aws_array_list_is_valid_~#required_size~0.base_17|) 0) 18446744073709551616) .cse3) (= (store |c_old(#memory_int)| |v_aws_array_list_is_valid_~#required_size~0.base_17| (store (select |c_old(#memory_int)| |v_aws_array_list_is_valid_~#required_size~0.base_17|) 0 .cse4)) |c_#memory_int|) (= 0 (select |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_17|)) (= 0 (select .cse5 |v___CPROVER_overflow_mult_~#c~1.base_28|)) (= |c_#valid| (store (store .cse5 |v___CPROVER_overflow_mult_~#c~1.base_28| v_ArrVal_419) |v_aws_array_list_is_valid_~#required_size~0.base_17| v_ArrVal_424)) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |v_aws_array_list_is_valid_~#required_size~0.base_17| v_ArrVal_420)) (= (store |c_old(#memory_$Pointer$.base)| |v_aws_array_list_is_valid_~#required_size~0.base_17| v_ArrVal_422) |c_#memory_$Pointer$.base|))))) (and (exists ((v_ArrVal_419 Int) (v_ArrVal_418 Int) (|v_aws_array_list_is_valid_~#required_size~0.base_17| Int) (v_ArrVal_420 (Array Int Int)) (|v___CPROVER_overflow_mult_~#c~1.base_28| Int) (v_ArrVal_422 (Array Int Int)) (v_ArrVal_424 Int)) (let ((.cse6 (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_17| v_ArrVal_418))) (and (= (store |c_old(#memory_int)| |v_aws_array_list_is_valid_~#required_size~0.base_17| (store (select |c_old(#memory_int)| |v_aws_array_list_is_valid_~#required_size~0.base_17|) 0 .cse4)) |c_#memory_int|) (not (<= (mod (select (select |c_#memory_int| |v_aws_array_list_is_valid_~#required_size~0.base_17|) 0) 18446744073709551616) .cse3)) (= 0 (select |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_17|)) (= 0 (select .cse6 |v___CPROVER_overflow_mult_~#c~1.base_28|)) (= |c_#valid| (store (store .cse6 |v___CPROVER_overflow_mult_~#c~1.base_28| v_ArrVal_419) |v_aws_array_list_is_valid_~#required_size~0.base_17| v_ArrVal_424)) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |v_aws_array_list_is_valid_~#required_size~0.base_17| v_ArrVal_420)) (= (store |c_old(#memory_$Pointer$.base)| |v_aws_array_list_is_valid_~#required_size~0.base_17| v_ArrVal_422) |c_#memory_$Pointer$.base|)))) .cse2)))) is different from false [2022-11-22 02:16:07,843 WARN L233 SmtUtils]: Spent 3.09m on a formula simplification. DAG size of input: 109 DAG size of output: 62 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-22 02:16:07,844 INFO L321 Elim1Store]: treesize reduction 202, result has 38.6 percent of original size [2022-11-22 02:16:07,845 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 211 treesize of output 352 [2022-11-22 02:16:07,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:07,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:07,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:16:07,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 202 treesize of output 231 [2022-11-22 02:16:43,382 WARN L233 SmtUtils]: Spent 35.41s on a formula simplification. DAG size of input: 23 DAG size of output: 15 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-22 02:16:43,382 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-22 02:16:43,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 145 treesize of output 178 [2022-11-22 02:17:15,549 WARN L233 SmtUtils]: Spent 32.08s on a formula simplification. DAG size of input: 23 DAG size of output: 15 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-22 02:17:15,549 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-22 02:17:15,550 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 139 treesize of output 172