./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_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_e017e0ee-e6a0-4fa8-8e91-5184f70951af/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e017e0ee-e6a0-4fa8-8e91-5184f70951af/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_e017e0ee-e6a0-4fa8-8e91-5184f70951af/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e017e0ee-e6a0-4fa8-8e91-5184f70951af/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e017e0ee-e6a0-4fa8-8e91-5184f70951af/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_e017e0ee-e6a0-4fa8-8e91-5184f70951af/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 c12ad62b7b197015493bfb3c1dd9a5de2922d9b16e39f249961c276d8b82591b --- 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 02:23:28,984 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:23:28,987 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:23:29,035 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:23:29,037 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:23:29,041 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:23:29,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:23:29,048 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:23:29,051 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:23:29,057 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:23:29,060 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:23:29,063 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:23:29,063 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:23:29,066 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:23:29,068 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:23:29,071 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:23:29,074 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:23:29,076 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:23:29,078 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:23:29,086 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:23:29,088 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:23:29,090 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:23:29,092 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:23:29,094 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:23:29,106 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:23:29,106 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:23:29,107 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:23:29,110 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:23:29,110 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:23:29,112 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:23:29,112 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:23:29,115 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:23:29,117 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:23:29,119 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:23:29,120 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:23:29,120 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:23:29,121 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:23:29,122 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:23:29,122 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:23:29,123 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:23:29,125 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:23:29,126 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e017e0ee-e6a0-4fa8-8e91-5184f70951af/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 02:23:29,176 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:23:29,177 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:23:29,178 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:23:29,178 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:23:29,179 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:23:29,180 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:23:29,180 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:23:29,181 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:23:29,181 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:23:29,181 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:23:29,183 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:23:29,183 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:23:29,183 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:23:29,184 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:23:29,184 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:23:29,185 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:23:29,185 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:23:29,185 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:23:29,186 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:23:29,187 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:23:29,187 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:23:29,187 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:23:29,187 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:23:29,188 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:23:29,188 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:23:29,188 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:23:29,189 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:23:29,190 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:23:29,190 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:23:29,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:23:29,191 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:23:29,191 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:23:29,192 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:23:29,192 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:23:29,192 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:23:29,192 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:23:29,193 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:23:29,193 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:23:29,193 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_e017e0ee-e6a0-4fa8-8e91-5184f70951af/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e017e0ee-e6a0-4fa8-8e91-5184f70951af/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c12ad62b7b197015493bfb3c1dd9a5de2922d9b16e39f249961c276d8b82591b [2022-11-22 02:23:29,543 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:23:29,588 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:23:29,591 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:23:29,593 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:23:29,593 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:23:29,595 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e017e0ee-e6a0-4fa8-8e91-5184f70951af/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i [2022-11-22 02:23:32,890 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:23:33,540 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:23:33,541 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e017e0ee-e6a0-4fa8-8e91-5184f70951af/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i [2022-11-22 02:23:33,585 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e017e0ee-e6a0-4fa8-8e91-5184f70951af/bin/utaipan-g80aRyZoba/data/6a44964b1/a208819d08a6496b832754b522103f81/FLAGcfadf7530 [2022-11-22 02:23:33,607 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e017e0ee-e6a0-4fa8-8e91-5184f70951af/bin/utaipan-g80aRyZoba/data/6a44964b1/a208819d08a6496b832754b522103f81 [2022-11-22 02:23:33,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:23:33,612 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:23:33,616 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:23:33,616 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:23:33,621 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:23:33,623 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:23:33" (1/1) ... [2022-11-22 02:23:33,624 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7354e489 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:33, skipping insertion in model container [2022-11-22 02:23:33,624 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:23:33" (1/1) ... [2022-11-22 02:23:33,633 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:23:33,763 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:23:34,041 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_e017e0ee-e6a0-4fa8-8e91-5184f70951af/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i[4504,4517] [2022-11-22 02:23:34,052 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_e017e0ee-e6a0-4fa8-8e91-5184f70951af/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i[4564,4577] [2022-11-22 02:23:35,228 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-22 02:23:35,346 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:23:35,347 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:23:35,348 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:23:35,349 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:23:35,351 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:23:35,368 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:23:35,369 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:23:35,371 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:23:35,372 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:23:35,375 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:23:35,376 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:23:35,378 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:23:35,378 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:23:35,912 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-22 02:23:35,914 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-22 02:23:35,915 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-22 02:23:35,917 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-22 02:23:35,919 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-22 02:23:35,920 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-22 02:23:35,921 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-22 02:23:35,922 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-22 02:23:35,924 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-22 02:23:35,925 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-22 02:23:36,098 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:23:36,099 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:23:36,105 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:23:36,115 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:23:36,179 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:23:36,184 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:23:36,232 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:23:36,263 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_e017e0ee-e6a0-4fa8-8e91-5184f70951af/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i[4504,4517] [2022-11-22 02:23:36,266 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_e017e0ee-e6a0-4fa8-8e91-5184f70951af/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i[4564,4577] [2022-11-22 02:23:36,360 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-22 02:23:36,393 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:23:36,393 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:23:36,394 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:23:36,395 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:23:36,396 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:23:36,412 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:23:36,413 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:23:36,416 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:23:36,417 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:23:36,419 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:23:36,420 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:23:36,421 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:23:36,421 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:23:36,505 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-22 02:23:36,507 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-22 02:23:36,508 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-22 02:23:36,509 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-22 02:23:36,511 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-22 02:23:36,512 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-22 02:23:36,513 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-22 02:23:36,514 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-22 02:23:36,518 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-22 02:23:36,519 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-22 02:23:36,590 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:23:36,592 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:23:36,594 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:23:36,602 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:23:36,647 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:23:36,658 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:23:36,863 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:23:36,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:36 WrapperNode [2022-11-22 02:23:36,864 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:23:36,865 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:23:36,865 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:23:36,866 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:23:36,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:36" (1/1) ... [2022-11-22 02:23:36,986 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:36" (1/1) ... [2022-11-22 02:23:37,110 INFO L138 Inliner]: procedures = 691, calls = 1683, calls flagged for inlining = 52, calls inlined = 11, statements flattened = 803 [2022-11-22 02:23:37,118 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:23:37,119 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:23:37,119 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:23:37,119 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:23:37,131 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:36" (1/1) ... [2022-11-22 02:23:37,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:36" (1/1) ... [2022-11-22 02:23:37,140 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:36" (1/1) ... [2022-11-22 02:23:37,141 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:36" (1/1) ... [2022-11-22 02:23:37,175 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:36" (1/1) ... [2022-11-22 02:23:37,179 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:36" (1/1) ... [2022-11-22 02:23:37,199 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:36" (1/1) ... [2022-11-22 02:23:37,204 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:36" (1/1) ... [2022-11-22 02:23:37,215 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:23:37,223 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:23:37,224 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:23:37,225 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:23:37,226 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:36" (1/1) ... [2022-11-22 02:23:37,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:23:37,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e017e0ee-e6a0-4fa8-8e91-5184f70951af/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:23:37,265 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e017e0ee-e6a0-4fa8-8e91-5184f70951af/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:23:37,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e017e0ee-e6a0-4fa8-8e91-5184f70951af/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:23:37,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:23:37,325 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-11-22 02:23:37,325 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-11-22 02:23:37,326 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-11-22 02:23:37,326 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-11-22 02:23:37,326 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-22 02:23:37,326 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-22 02:23:37,326 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2022-11-22 02:23:37,327 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2022-11-22 02:23:37,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:23:37,327 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-22 02:23:37,327 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-22 02:23:37,327 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-22 02:23:37,328 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-22 02:23:37,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 02:23:37,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:23:37,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 02:23:37,330 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-11-22 02:23:37,330 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-11-22 02:23:37,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:23:37,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:23:37,331 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-22 02:23:37,331 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-22 02:23:37,331 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-22 02:23:37,331 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-22 02:23:37,332 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-22 02:23:37,332 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-22 02:23:37,333 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-11-22 02:23:37,333 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-11-22 02:23:37,333 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2022-11-22 02:23:37,333 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2022-11-22 02:23:37,334 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-22 02:23:37,335 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-22 02:23:37,335 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-11-22 02:23:37,335 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-11-22 02:23:37,335 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2022-11-22 02:23:37,335 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2022-11-22 02:23:37,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:23:37,336 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2022-11-22 02:23:37,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2022-11-22 02:23:37,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 02:23:37,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 02:23:37,337 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-22 02:23:37,337 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-22 02:23:37,337 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-22 02:23:37,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-22 02:23:37,338 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2022-11-22 02:23:37,338 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2022-11-22 02:23:37,338 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_ensure_capacity [2022-11-22 02:23:37,339 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_ensure_capacity [2022-11-22 02:23:37,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:23:37,344 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-11-22 02:23:37,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-11-22 02:23:37,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:23:37,801 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:23:37,814 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:23:39,374 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:23:39,555 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:23:39,556 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 02:23:39,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:23:39 BoogieIcfgContainer [2022-11-22 02:23:39,567 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:23:39,570 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:23:39,570 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:23:39,575 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:23:39,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:23:33" (1/3) ... [2022-11-22 02:23:39,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fca78c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:23:39, skipping insertion in model container [2022-11-22 02:23:39,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:23:36" (2/3) ... [2022-11-22 02:23:39,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fca78c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:23:39, skipping insertion in model container [2022-11-22 02:23:39,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:23:39" (3/3) ... [2022-11-22 02:23:39,581 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_ensure_capacity_harness.i [2022-11-22 02:23:39,605 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:23:39,605 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 02:23:39,680 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:23:39,687 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;@2512cdcb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:23:39,688 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 02:23:39,693 INFO L276 IsEmpty]: Start isEmpty. Operand has 207 states, 111 states have (on average 1.2072072072072073) internal successors, (134), 112 states have internal predecessors, (134), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2022-11-22 02:23:39,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-22 02:23:39,706 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:23:39,707 INFO L195 NwaCegarLoop]: trace histogram [5, 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, 1, 1, 1, 1, 1] [2022-11-22 02:23:39,708 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:23:39,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:23:39,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1517059556, now seen corresponding path program 1 times [2022-11-22 02:23:39,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:23:39,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295572994] [2022-11-22 02:23:39,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:39,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:23:40,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:23:40,915 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-22 02:23:40,915 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:23:40,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295572994] [2022-11-22 02:23:40,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295572994] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:23:40,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1820037116] [2022-11-22 02:23:40,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:40,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:23:40,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e017e0ee-e6a0-4fa8-8e91-5184f70951af/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:23:40,923 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e017e0ee-e6a0-4fa8-8e91-5184f70951af/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:23:40,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e017e0ee-e6a0-4fa8-8e91-5184f70951af/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 02:23:41,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:23:41,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 2227 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 02:23:41,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:23:41,806 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-22 02:23:41,806 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:23:41,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1820037116] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:23:41,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 02:23:41,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2022-11-22 02:23:41,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212733744] [2022-11-22 02:23:41,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:23:41,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:23:41,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:23:41,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:23:41,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:23:41,855 INFO L87 Difference]: Start difference. First operand has 207 states, 111 states have (on average 1.2072072072072073) internal successors, (134), 112 states have internal predecessors, (134), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-22 02:23:42,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:23:42,476 INFO L93 Difference]: Finished difference Result 393 states and 562 transitions. [2022-11-22 02:23:42,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:23:42,479 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 71 [2022-11-22 02:23:42,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:23:42,494 INFO L225 Difference]: With dead ends: 393 [2022-11-22 02:23:42,495 INFO L226 Difference]: Without dead ends: 201 [2022-11-22 02:23:42,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-22 02:23:42,505 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 29 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-22 02:23:42,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 869 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-22 02:23:42,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2022-11-22 02:23:42,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2022-11-22 02:23:42,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 106 states have (on average 1.179245283018868) internal successors, (125), 109 states have internal predecessors, (125), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (80), 70 states have call predecessors, (80), 70 states have call successors, (80) [2022-11-22 02:23:42,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 278 transitions. [2022-11-22 02:23:42,605 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 278 transitions. Word has length 71 [2022-11-22 02:23:42,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:23:42,606 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 278 transitions. [2022-11-22 02:23:42,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-22 02:23:42,607 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 278 transitions. [2022-11-22 02:23:42,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-22 02:23:42,611 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:23:42,611 INFO L195 NwaCegarLoop]: trace histogram [5, 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, 1, 1, 1, 1, 1] [2022-11-22 02:23:42,631 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e017e0ee-e6a0-4fa8-8e91-5184f70951af/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-22 02:23:42,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e017e0ee-e6a0-4fa8-8e91-5184f70951af/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-22 02:23:42,828 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:23:42,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:23:42,829 INFO L85 PathProgramCache]: Analyzing trace with hash 717667055, now seen corresponding path program 1 times [2022-11-22 02:23:42,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:23:42,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688559491] [2022-11-22 02:23:42,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:42,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:23:42,939 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 02:23:42,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1498721585] [2022-11-22 02:23:42,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:42,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:23:42,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e017e0ee-e6a0-4fa8-8e91-5184f70951af/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:23:42,941 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e017e0ee-e6a0-4fa8-8e91-5184f70951af/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:23:42,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e017e0ee-e6a0-4fa8-8e91-5184f70951af/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 02:23:43,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:23:43,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 2359 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-22 02:23:43,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:23:43,755 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-22 02:23:43,755 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:23:43,756 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:23:43,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688559491] [2022-11-22 02:23:43,756 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 02:23:43,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498721585] [2022-11-22 02:23:43,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1498721585] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:23:43,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:23:43,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:23:43,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774094235] [2022-11-22 02:23:43,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:23:43,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 02:23:43,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:23:43,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 02:23:43,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:23:43,760 INFO L87 Difference]: Start difference. First operand 201 states and 278 transitions. Second operand has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2022-11-22 02:23:44,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:23:44,569 INFO L93 Difference]: Finished difference Result 370 states and 510 transitions. [2022-11-22 02:23:44,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 02:23:44,569 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 80 [2022-11-22 02:23:44,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:23:44,573 INFO L225 Difference]: With dead ends: 370 [2022-11-22 02:23:44,573 INFO L226 Difference]: Without dead ends: 201 [2022-11-22 02:23:44,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 75 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 02:23:44,577 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 94 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 1107 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:23:44,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 1107 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 02:23:44,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2022-11-22 02:23:44,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2022-11-22 02:23:44,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 106 states have (on average 1.179245283018868) internal successors, (125), 109 states have internal predecessors, (125), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (74), 70 states have call predecessors, (74), 70 states have call successors, (74) [2022-11-22 02:23:44,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 272 transitions. [2022-11-22 02:23:44,611 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 272 transitions. Word has length 80 [2022-11-22 02:23:44,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:23:44,612 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 272 transitions. [2022-11-22 02:23:44,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2022-11-22 02:23:44,613 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 272 transitions. [2022-11-22 02:23:44,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-22 02:23:44,616 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:23:44,616 INFO L195 NwaCegarLoop]: trace histogram [5, 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, 1, 1, 1, 1, 1] [2022-11-22 02:23:44,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e017e0ee-e6a0-4fa8-8e91-5184f70951af/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 02:23:44,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e017e0ee-e6a0-4fa8-8e91-5184f70951af/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:23:44,828 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:23:44,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:23:44,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1286962316, now seen corresponding path program 2 times [2022-11-22 02:23:44,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:23:44,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551395988] [2022-11-22 02:23:44,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:44,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:23:44,943 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 02:23:44,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1340393240] [2022-11-22 02:23:44,945 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 02:23:44,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:23:44,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e017e0ee-e6a0-4fa8-8e91-5184f70951af/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:23:44,948 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e017e0ee-e6a0-4fa8-8e91-5184f70951af/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:23:44,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e017e0ee-e6a0-4fa8-8e91-5184f70951af/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 02:23:45,566 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-22 02:23:45,567 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 02:23:45,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 1910 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-22 02:23:45,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:23:45,618 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-11-22 02:23:45,619 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:23:45,619 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:23:45,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551395988] [2022-11-22 02:23:45,619 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 02:23:45,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1340393240] [2022-11-22 02:23:45,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1340393240] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:23:45,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:23:45,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:23:45,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441872544] [2022-11-22 02:23:45,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:23:45,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:23:45,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:23:45,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:23:45,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:23:45,629 INFO L87 Difference]: Start difference. First operand 201 states and 272 transitions. Second operand has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-22 02:23:46,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:23:46,041 INFO L93 Difference]: Finished difference Result 348 states and 463 transitions. [2022-11-22 02:23:46,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:23:46,042 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 89 [2022-11-22 02:23:46,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:23:46,045 INFO L225 Difference]: With dead ends: 348 [2022-11-22 02:23:46,045 INFO L226 Difference]: Without dead ends: 205 [2022-11-22 02:23:46,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-22 02:23:46,048 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 1 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:23:46,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 966 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 02:23:46,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2022-11-22 02:23:46,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2022-11-22 02:23:46,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 109 states have (on average 1.1743119266055047) internal successors, (128), 112 states have internal predecessors, (128), 73 states have call successors, (73), 21 states have call predecessors, (73), 22 states have return successors, (75), 71 states have call predecessors, (75), 70 states have call successors, (75) [2022-11-22 02:23:46,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 276 transitions. [2022-11-22 02:23:46,069 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 276 transitions. Word has length 89 [2022-11-22 02:23:46,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:23:46,070 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 276 transitions. [2022-11-22 02:23:46,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-22 02:23:46,071 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 276 transitions. [2022-11-22 02:23:46,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-22 02:23:46,074 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:23:46,074 INFO L195 NwaCegarLoop]: trace histogram [5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:23:46,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e017e0ee-e6a0-4fa8-8e91-5184f70951af/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-22 02:23:46,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e017e0ee-e6a0-4fa8-8e91-5184f70951af/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:23:46,285 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:23:46,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:23:46,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1373110104, now seen corresponding path program 1 times [2022-11-22 02:23:46,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:23:46,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557429854] [2022-11-22 02:23:46,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:46,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:23:46,376 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 02:23:46,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1665063838] [2022-11-22 02:23:46,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:46,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:23:46,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e017e0ee-e6a0-4fa8-8e91-5184f70951af/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:23:46,379 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e017e0ee-e6a0-4fa8-8e91-5184f70951af/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:23:46,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e017e0ee-e6a0-4fa8-8e91-5184f70951af/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 02:23:47,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:23:47,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 2494 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-22 02:23:47,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:23:47,221 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-22 02:23:47,221 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:23:47,221 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:23:47,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557429854] [2022-11-22 02:23:47,222 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 02:23:47,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1665063838] [2022-11-22 02:23:47,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1665063838] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:23:47,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:23:47,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-22 02:23:47,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927292824] [2022-11-22 02:23:47,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:23:47,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:23:47,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:23:47,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:23:47,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:23:47,226 INFO L87 Difference]: Start difference. First operand 205 states and 276 transitions. Second operand has 8 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 5 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) [2022-11-22 02:23:48,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:23:48,341 INFO L93 Difference]: Finished difference Result 375 states and 501 transitions. [2022-11-22 02:23:48,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 02:23:48,342 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 5 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) Word has length 93 [2022-11-22 02:23:48,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:23:48,344 INFO L225 Difference]: With dead ends: 375 [2022-11-22 02:23:48,345 INFO L226 Difference]: Without dead ends: 203 [2022-11-22 02:23:48,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-22 02:23:48,347 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 129 mSDsluCounter, 1034 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:23:48,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 1248 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-22 02:23:48,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2022-11-22 02:23:48,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2022-11-22 02:23:48,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 108 states have (on average 1.1666666666666667) internal successors, (126), 110 states have internal predecessors, (126), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (71), 71 states have call predecessors, (71), 70 states have call successors, (71) [2022-11-22 02:23:48,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 270 transitions. [2022-11-22 02:23:48,367 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 270 transitions. Word has length 93 [2022-11-22 02:23:48,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:23:48,368 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 270 transitions. [2022-11-22 02:23:48,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 5 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) [2022-11-22 02:23:48,368 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 270 transitions. [2022-11-22 02:23:48,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-22 02:23:48,371 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:23:48,371 INFO L195 NwaCegarLoop]: trace histogram [5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:23:48,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e017e0ee-e6a0-4fa8-8e91-5184f70951af/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 02:23:48,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e017e0ee-e6a0-4fa8-8e91-5184f70951af/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:23:48,580 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:23:48,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:23:48,581 INFO L85 PathProgramCache]: Analyzing trace with hash -963749564, now seen corresponding path program 1 times [2022-11-22 02:23:48,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:23:48,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495973137] [2022-11-22 02:23:48,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:48,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:23:48,675 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 02:23:48,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [691278106] [2022-11-22 02:23:48,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:48,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:23:48,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e017e0ee-e6a0-4fa8-8e91-5184f70951af/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:23:48,677 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e017e0ee-e6a0-4fa8-8e91-5184f70951af/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:23:48,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e017e0ee-e6a0-4fa8-8e91-5184f70951af/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-22 02:23:49,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:23:49,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 2758 conjuncts, 427 conjunts are in the unsatisfiable core [2022-11-22 02:23:49,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:23:49,857 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 02:23:50,991 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 02:23:51,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:23:51,169 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 02:23:51,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:23:51,196 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 02:23:52,465 INFO L321 Elim1Store]: treesize reduction 53, result has 32.9 percent of original size [2022-11-22 02:23:52,465 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 41 treesize of output 53 [2022-11-22 02:23:52,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 29 [2022-11-22 02:23:52,527 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-22 02:23:52,539 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-22 02:23:53,051 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-11-22 02:23:53,051 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 [2022-11-22 02:23:55,253 INFO L321 Elim1Store]: treesize reduction 129, result has 28.7 percent of original size [2022-11-22 02:23:55,254 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 51 treesize of output 85 [2022-11-22 02:23:55,291 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 47 [2022-11-22 02:23:55,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-22 02:23:55,374 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-22 02:23:56,929 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-22 02:23:56,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2022-11-22 02:24:08,243 INFO L321 Elim1Store]: treesize reduction 350, result has 34.3 percent of original size [2022-11-22 02:24:08,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 32 case distinctions, treesize of input 194 treesize of output 387 [2022-11-22 02:24:08,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:08,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:08,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:24:08,308 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:24:08,314 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:24:09,652 INFO L321 Elim1Store]: treesize reduction 79, result has 36.8 percent of original size [2022-11-22 02:24:09,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 8 select indices, 8 select index equivalence classes, 11 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 17 case distinctions, treesize of input 188 treesize of output 242 [2022-11-22 02:24:10,664 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-22 02:24:10,665 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 108 treesize of output 141 [2022-11-22 02:24:11,628 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-22 02:24:11,629 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 102 treesize of output 135 [2022-11-22 02:26:40,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 40 [2022-11-22 02:26:46,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:26:46,541 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 33 [2022-11-22 02:26:49,568 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-22 02:26:49,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 33 [2022-11-22 02:26:53,898 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:26:53,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 33 [2022-11-22 02:26:57,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:26:57,767 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-22 02:26:57,767 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 33 [2022-11-22 02:27:06,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:06,407 INFO L321 Elim1Store]: treesize reduction 21, result has 4.5 percent of original size [2022-11-22 02:27:06,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 27 [2022-11-22 02:27:07,703 INFO L217 Elim1Store]: Index analysis took 520 ms [2022-11-22 02:27:08,518 INFO L321 Elim1Store]: treesize reduction 21, result has 4.5 percent of original size [2022-11-22 02:27:08,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 27 [2022-11-22 02:27:11,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:11,965 INFO L321 Elim1Store]: treesize reduction 21, result has 4.5 percent of original size [2022-11-22 02:27:11,966 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 27 [2022-11-22 02:27:36,831 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-22 02:27:36,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 33 [2022-11-22 02:27:39,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:39,461 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 33 [2022-11-22 02:27:42,877 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:27:43,130 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 33 [2022-11-22 02:27:44,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:44,318 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-22 02:27:44,318 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 33 [2022-11-22 02:27:47,552 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:27:47,555 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 33 [2022-11-22 02:27:53,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:53,954 INFO L321 Elim1Store]: treesize reduction 21, result has 4.5 percent of original size [2022-11-22 02:27:53,954 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 27 [2022-11-22 02:27:57,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:27:57,298 INFO L321 Elim1Store]: treesize reduction 21, result has 4.5 percent of original size [2022-11-22 02:27:57,299 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 27 [2022-11-22 02:28:03,311 INFO L321 Elim1Store]: treesize reduction 21, result has 4.5 percent of original size [2022-11-22 02:28:03,311 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 27 [2022-11-22 02:29:19,374 INFO L321 Elim1Store]: treesize reduction 77, result has 1.3 percent of original size [2022-11-22 02:29:19,375 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 542 treesize of output 498 [2022-11-22 02:29:20,025 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:29:20,028 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 3 [2022-11-22 02:29:20,264 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:29:20,268 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 3 [2022-11-22 02:29:20,994 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-22 02:29:20,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 7 [2022-11-22 02:31:49,694 WARN L233 SmtUtils]: Spent 18.16s on a formula simplification. DAG size of input: 202 DAG size of output: 54 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-22 02:31:49,695 INFO L321 Elim1Store]: treesize reduction 680, result has 11.1 percent of original size [2022-11-22 02:31:49,695 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 7 new quantified variables, introduced 14 case distinctions, treesize of input 655 treesize of output 1047 [2022-11-22 02:34:26,751 INFO L217 Elim1Store]: Index analysis took 2336 ms [2022-11-22 02:34:35,358 WARN L233 SmtUtils]: Spent 7.98s on a formula simplification. DAG size of input: 240 DAG size of output: 1 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-22 02:34:35,358 INFO L321 Elim1Store]: treesize reduction 2339, result has 0.0 percent of original size [2022-11-22 02:34:35,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 5 select indices, 5 select index equivalence classes, 16 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 27 case distinctions, treesize of input 621 treesize of output 483 [2022-11-22 02:34:46,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:34:46,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:34:46,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:34:46,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:34:46,904 INFO L190 IndexEqualityManager]: detected not equals via solver