./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bc2f75-9977-4449-9cf1-9029385f9e58/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bc2f75-9977-4449-9cf1-9029385f9e58/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_63bc2f75-9977-4449-9cf1-9029385f9e58/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bc2f75-9977-4449-9cf1-9029385f9e58/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bc2f75-9977-4449-9cf1-9029385f9e58/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_63bc2f75-9977-4449-9cf1-9029385f9e58/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 4e3d62ab3962e5958dc41169c7885079de47f5dcf75079068205793f151a2e2b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 01:08:35,012 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:08:35,015 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:08:35,057 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:08:35,058 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:08:35,061 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:08:35,062 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:08:35,065 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:08:35,067 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:08:35,068 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:08:35,070 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:08:35,071 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:08:35,075 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:08:35,079 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:08:35,081 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:08:35,086 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:08:35,089 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:08:35,097 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:08:35,100 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:08:35,102 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:08:35,104 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:08:35,109 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:08:35,110 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:08:35,113 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:08:35,119 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:08:35,125 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:08:35,126 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:08:35,128 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:08:35,131 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:08:35,132 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:08:35,134 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:08:35,135 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:08:35,137 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:08:35,139 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:08:35,142 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:08:35,142 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:08:35,143 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:08:35,144 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:08:35,144 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:08:35,146 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:08:35,147 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:08:35,149 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bc2f75-9977-4449-9cf1-9029385f9e58/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:08:35,211 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:08:35,212 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:08:35,213 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:08:35,213 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:08:35,214 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:08:35,215 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:08:35,215 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:08:35,215 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:08:35,216 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:08:35,216 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:08:35,217 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:08:35,218 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:08:35,218 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:08:35,218 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:08:35,219 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:08:35,219 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:08:35,219 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:08:35,220 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:08:35,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:08:35,222 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:08:35,222 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:08:35,223 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:08:35,223 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:08:35,223 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:08:35,223 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:08:35,224 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:08:35,225 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:08:35,225 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:08:35,225 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:08:35,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:08:35,226 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:08:35,227 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:08:35,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:08:35,227 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:08:35,228 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:08:35,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:08:35,228 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:08:35,229 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:08:35,229 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_63bc2f75-9977-4449-9cf1-9029385f9e58/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bc2f75-9977-4449-9cf1-9029385f9e58/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e3d62ab3962e5958dc41169c7885079de47f5dcf75079068205793f151a2e2b [2022-11-22 01:08:35,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:08:35,651 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:08:35,654 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:08:35,656 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:08:35,656 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:08:35,658 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bc2f75-9977-4449-9cf1-9029385f9e58/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i [2022-11-22 01:08:39,077 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:08:39,665 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:08:39,666 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bc2f75-9977-4449-9cf1-9029385f9e58/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i [2022-11-22 01:08:39,703 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bc2f75-9977-4449-9cf1-9029385f9e58/bin/utaipan-g80aRyZoba/data/16cc186bc/49d23f3538dc41c9bfccfdcad944ca36/FLAG41c32a8b7 [2022-11-22 01:08:39,719 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bc2f75-9977-4449-9cf1-9029385f9e58/bin/utaipan-g80aRyZoba/data/16cc186bc/49d23f3538dc41c9bfccfdcad944ca36 [2022-11-22 01:08:39,722 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:08:39,724 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:08:39,726 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:08:39,726 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:08:39,730 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:08:39,731 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:08:39" (1/1) ... [2022-11-22 01:08:39,732 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57a7bc92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:39, skipping insertion in model container [2022-11-22 01:08:39,732 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:08:39" (1/1) ... [2022-11-22 01:08:39,740 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:08:39,834 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:08:40,083 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_63bc2f75-9977-4449-9cf1-9029385f9e58/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i[4497,4510] [2022-11-22 01:08:40,092 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_63bc2f75-9977-4449-9cf1-9029385f9e58/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i[4557,4570] [2022-11-22 01:08:41,272 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-22 01:08:41,375 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:08:41,376 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:08:41,377 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:08:41,378 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:08:41,379 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:08:41,393 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:08:41,394 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:08:41,396 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:08:41,399 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:08:41,401 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:08:41,404 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:08:41,405 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:08:41,411 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:08:41,945 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-22 01:08:41,946 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-22 01:08:41,947 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-22 01:08:41,948 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-22 01:08:41,950 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-22 01:08:41,951 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-22 01:08:41,952 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-22 01:08:41,953 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-22 01:08:41,953 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-22 01:08:41,954 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-22 01:08:42,152 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:08:42,159 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:08:42,224 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:08:42,255 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:08:42,284 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_63bc2f75-9977-4449-9cf1-9029385f9e58/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i[4497,4510] [2022-11-22 01:08:42,292 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_63bc2f75-9977-4449-9cf1-9029385f9e58/sv-benchmarks/c/aws-c-common/aws_array_list_pop_back_harness.i[4557,4570] [2022-11-22 01:08:42,359 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-22 01:08:42,376 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:08:42,377 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:08:42,377 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:08:42,378 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:08:42,379 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:08:42,388 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:08:42,388 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:08:42,390 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:08:42,390 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:08:42,392 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:08:42,392 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:08:42,393 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:08:42,394 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:08:42,430 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-22 01:08:42,432 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-22 01:08:42,433 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-22 01:08:42,434 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-22 01:08:42,435 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-22 01:08:42,436 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-22 01:08:42,436 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-22 01:08:42,437 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-22 01:08:42,438 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-22 01:08:42,438 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-22 01:08:42,468 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:08:42,473 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:08:42,505 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:08:42,659 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:08:42,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:42 WrapperNode [2022-11-22 01:08:42,660 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:08:42,661 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:08:42,661 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:08:42,661 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:08:42,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:42" (1/1) ... [2022-11-22 01:08:42,754 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:42" (1/1) ... [2022-11-22 01:08:42,865 INFO L138 Inliner]: procedures = 691, calls = 1699, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 615 [2022-11-22 01:08:42,879 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:08:42,879 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:08:42,880 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:08:42,880 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:08:42,890 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:42" (1/1) ... [2022-11-22 01:08:42,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:42" (1/1) ... [2022-11-22 01:08:42,903 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:42" (1/1) ... [2022-11-22 01:08:42,911 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:42" (1/1) ... [2022-11-22 01:08:42,955 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:42" (1/1) ... [2022-11-22 01:08:42,969 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:42" (1/1) ... [2022-11-22 01:08:42,988 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:42" (1/1) ... [2022-11-22 01:08:42,992 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:42" (1/1) ... [2022-11-22 01:08:43,010 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:08:43,017 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:08:43,017 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:08:43,017 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:08:43,018 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:42" (1/1) ... [2022-11-22 01:08:43,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:08:43,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bc2f75-9977-4449-9cf1-9029385f9e58/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:08:43,060 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bc2f75-9977-4449-9cf1-9029385f9e58/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:08:43,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bc2f75-9977-4449-9cf1-9029385f9e58/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:08:43,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:08:43,112 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-11-22 01:08:43,113 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-11-22 01:08:43,113 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-11-22 01:08:43,113 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-11-22 01:08:43,113 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-22 01:08:43,114 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-22 01:08:43,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:08:43,114 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-22 01:08:43,115 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-22 01:08:43,115 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-22 01:08:43,115 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-22 01:08:43,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:08:43,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:08:43,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:08:43,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:08:43,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:08:43,116 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-22 01:08:43,117 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-22 01:08:43,118 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-22 01:08:43,118 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-22 01:08:43,119 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-22 01:08:43,119 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-22 01:08:43,119 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-11-22 01:08:43,119 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-11-22 01:08:43,119 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-22 01:08:43,120 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-22 01:08:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2022-11-22 01:08:43,120 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2022-11-22 01:08:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:08:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:08:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:08:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-22 01:08:43,121 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-22 01:08:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-22 01:08:43,121 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-22 01:08:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:08:43,122 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2022-11-22 01:08:43,123 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2022-11-22 01:08:43,123 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2022-11-22 01:08:43,123 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2022-11-22 01:08:43,123 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-11-22 01:08:43,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-11-22 01:08:43,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:08:43,478 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:08:43,481 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:08:44,538 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:08:44,687 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:08:44,688 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 01:08:44,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:08:44 BoogieIcfgContainer [2022-11-22 01:08:44,691 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:08:44,693 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:08:44,693 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:08:44,696 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:08:44,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:08:39" (1/3) ... [2022-11-22 01:08:44,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ae243b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:08:44, skipping insertion in model container [2022-11-22 01:08:44,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:42" (2/3) ... [2022-11-22 01:08:44,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ae243b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:08:44, skipping insertion in model container [2022-11-22 01:08:44,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:08:44" (3/3) ... [2022-11-22 01:08:44,699 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_pop_back_harness.i [2022-11-22 01:08:44,719 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:08:44,719 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:08:44,783 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:08:44,796 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;@490ea268, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:08:44,796 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:08:44,802 INFO L276 IsEmpty]: Start isEmpty. Operand has 142 states, 76 states have (on average 1.1842105263157894) internal successors, (90), 77 states have internal predecessors, (90), 48 states have call successors, (48), 16 states have call predecessors, (48), 16 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2022-11-22 01:08:44,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-22 01:08:44,818 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:08:44,819 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:08:44,819 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:08:44,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:08:44,826 INFO L85 PathProgramCache]: Analyzing trace with hash 469076981, now seen corresponding path program 1 times [2022-11-22 01:08:44,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:08:44,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026965491] [2022-11-22 01:08:44,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:08:44,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:08:45,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:08:46,056 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-22 01:08:46,057 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:08:46,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026965491] [2022-11-22 01:08:46,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026965491] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:08:46,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754537677] [2022-11-22 01:08:46,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:08:46,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:08:46,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bc2f75-9977-4449-9cf1-9029385f9e58/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:08:46,065 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bc2f75-9977-4449-9cf1-9029385f9e58/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:08:46,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bc2f75-9977-4449-9cf1-9029385f9e58/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:08:46,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:08:46,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 2116 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 01:08:46,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:08:46,784 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-22 01:08:46,784 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:08:46,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [754537677] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:08:46,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:08:46,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2022-11-22 01:08:46,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789360059] [2022-11-22 01:08:46,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:08:46,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:08:46,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:08:46,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:08:46,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:08:46,838 INFO L87 Difference]: Start difference. First operand has 142 states, 76 states have (on average 1.1842105263157894) internal successors, (90), 77 states have internal predecessors, (90), 48 states have call successors, (48), 16 states have call predecessors, (48), 16 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-22 01:08:47,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:08:47,471 INFO L93 Difference]: Finished difference Result 255 states and 361 transitions. [2022-11-22 01:08:47,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:08:47,474 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 67 [2022-11-22 01:08:47,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:08:47,484 INFO L225 Difference]: With dead ends: 255 [2022-11-22 01:08:47,484 INFO L226 Difference]: Without dead ends: 142 [2022-11-22 01:08:47,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 65 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 01:08:47,492 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 29 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:08:47,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 535 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-22 01:08:47,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-11-22 01:08:47,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2022-11-22 01:08:47,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 76 states have (on average 1.1710526315789473) internal successors, (89), 78 states have internal predecessors, (89), 48 states have call successors, (48), 16 states have call predecessors, (48), 17 states have return successors, (52), 47 states have call predecessors, (52), 47 states have call successors, (52) [2022-11-22 01:08:47,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 189 transitions. [2022-11-22 01:08:47,549 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 189 transitions. Word has length 67 [2022-11-22 01:08:47,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:08:47,550 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 189 transitions. [2022-11-22 01:08:47,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-22 01:08:47,550 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 189 transitions. [2022-11-22 01:08:47,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-22 01:08:47,553 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:08:47,553 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:08:47,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bc2f75-9977-4449-9cf1-9029385f9e58/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 01:08:47,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bc2f75-9977-4449-9cf1-9029385f9e58/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:08:47,764 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:08:47,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:08:47,764 INFO L85 PathProgramCache]: Analyzing trace with hash 941615624, now seen corresponding path program 1 times [2022-11-22 01:08:47,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:08:47,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21483640] [2022-11-22 01:08:47,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:08:47,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:08:47,886 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:08:47,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2090269652] [2022-11-22 01:08:47,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:08:47,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:08:47,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bc2f75-9977-4449-9cf1-9029385f9e58/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:08:47,888 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bc2f75-9977-4449-9cf1-9029385f9e58/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:08:47,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bc2f75-9977-4449-9cf1-9029385f9e58/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 01:08:48,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:08:48,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 2248 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-22 01:08:48,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:08:48,521 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-22 01:08:48,521 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:08:48,522 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:08:48,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21483640] [2022-11-22 01:08:48,522 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:08:48,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2090269652] [2022-11-22 01:08:48,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2090269652] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:08:48,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:08:48,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:08:48,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465969910] [2022-11-22 01:08:48,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:08:48,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 01:08:48,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:08:48,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 01:08:48,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:08:48,525 INFO L87 Difference]: Start difference. First operand 142 states and 189 transitions. Second operand has 7 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2022-11-22 01:08:49,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:08:49,167 INFO L93 Difference]: Finished difference Result 244 states and 326 transitions. [2022-11-22 01:08:49,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:08:49,171 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 76 [2022-11-22 01:08:49,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:08:49,173 INFO L225 Difference]: With dead ends: 244 [2022-11-22 01:08:49,173 INFO L226 Difference]: Without dead ends: 142 [2022-11-22 01:08:49,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-22 01:08:49,175 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 47 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:08:49,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 738 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-22 01:08:49,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-11-22 01:08:49,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2022-11-22 01:08:49,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 76 states have (on average 1.1710526315789473) internal successors, (89), 78 states have internal predecessors, (89), 48 states have call successors, (48), 16 states have call predecessors, (48), 17 states have return successors, (49), 47 states have call predecessors, (49), 47 states have call successors, (49) [2022-11-22 01:08:49,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 186 transitions. [2022-11-22 01:08:49,211 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 186 transitions. Word has length 76 [2022-11-22 01:08:49,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:08:49,212 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 186 transitions. [2022-11-22 01:08:49,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2022-11-22 01:08:49,212 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 186 transitions. [2022-11-22 01:08:49,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-22 01:08:49,218 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:08:49,219 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:08:49,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bc2f75-9977-4449-9cf1-9029385f9e58/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 01:08:49,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bc2f75-9977-4449-9cf1-9029385f9e58/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:08:49,429 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:08:49,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:08:49,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1291655425, now seen corresponding path program 2 times [2022-11-22 01:08:49,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:08:49,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482084840] [2022-11-22 01:08:49,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:08:49,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:08:49,567 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:08:49,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [697614881] [2022-11-22 01:08:49,568 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:08:49,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:08:49,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bc2f75-9977-4449-9cf1-9029385f9e58/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:08:49,569 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bc2f75-9977-4449-9cf1-9029385f9e58/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:08:49,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bc2f75-9977-4449-9cf1-9029385f9e58/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 01:08:50,136 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-22 01:08:50,137 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:08:50,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 1839 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-22 01:08:50,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:08:50,199 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-11-22 01:08:50,199 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:08:50,200 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:08:50,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482084840] [2022-11-22 01:08:50,200 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:08:50,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697614881] [2022-11-22 01:08:50,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [697614881] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:08:50,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:08:50,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:08:50,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209547587] [2022-11-22 01:08:50,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:08:50,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:08:50,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:08:50,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:08:50,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:08:50,204 INFO L87 Difference]: Start difference. First operand 142 states and 186 transitions. Second operand has 5 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-22 01:08:50,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:08:50,602 INFO L93 Difference]: Finished difference Result 242 states and 320 transitions. [2022-11-22 01:08:50,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:08:50,603 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 85 [2022-11-22 01:08:50,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:08:50,605 INFO L225 Difference]: With dead ends: 242 [2022-11-22 01:08:50,605 INFO L226 Difference]: Without dead ends: 142 [2022-11-22 01:08:50,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:08:50,608 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 0 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:08:50,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 604 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:08:50,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-11-22 01:08:50,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2022-11-22 01:08:50,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 76 states have (on average 1.1710526315789473) internal successors, (89), 78 states have internal predecessors, (89), 48 states have call successors, (48), 16 states have call predecessors, (48), 17 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2022-11-22 01:08:50,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 185 transitions. [2022-11-22 01:08:50,622 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 185 transitions. Word has length 85 [2022-11-22 01:08:50,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:08:50,622 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 185 transitions. [2022-11-22 01:08:50,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-22 01:08:50,623 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 185 transitions. [2022-11-22 01:08:50,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-22 01:08:50,624 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:08:50,625 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:08:50,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bc2f75-9977-4449-9cf1-9029385f9e58/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-22 01:08:50,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bc2f75-9977-4449-9cf1-9029385f9e58/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:08:50,839 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:08:50,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:08:50,839 INFO L85 PathProgramCache]: Analyzing trace with hash 2046961644, now seen corresponding path program 3 times [2022-11-22 01:08:50,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:08:50,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971282260] [2022-11-22 01:08:50,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:08:50,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:08:50,954 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:08:50,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [962882712] [2022-11-22 01:08:50,954 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-22 01:08:50,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:08:50,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bc2f75-9977-4449-9cf1-9029385f9e58/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:08:50,956 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bc2f75-9977-4449-9cf1-9029385f9e58/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:08:50,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bc2f75-9977-4449-9cf1-9029385f9e58/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 01:08:51,592 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-22 01:08:51,593 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:08:51,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 2512 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-22 01:08:51,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:08:51,757 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-22 01:08:51,757 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:08:51,757 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:08:51,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971282260] [2022-11-22 01:08:51,758 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:08:51,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962882712] [2022-11-22 01:08:51,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [962882712] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:08:51,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:08:51,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-22 01:08:51,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347824033] [2022-11-22 01:08:51,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:08:51,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-22 01:08:51,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:08:51,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-22 01:08:51,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-22 01:08:51,761 INFO L87 Difference]: Start difference. First operand 142 states and 185 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 7 states have internal predecessors, (32), 5 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2022-11-22 01:08:52,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:08:52,483 INFO L93 Difference]: Finished difference Result 241 states and 316 transitions. [2022-11-22 01:08:52,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 01:08:52,484 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 7 states have internal predecessors, (32), 5 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) Word has length 94 [2022-11-22 01:08:52,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:08:52,487 INFO L225 Difference]: With dead ends: 241 [2022-11-22 01:08:52,487 INFO L226 Difference]: Without dead ends: 140 [2022-11-22 01:08:52,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-11-22 01:08:52,489 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 51 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:08:52,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 966 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-22 01:08:52,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-11-22 01:08:52,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2022-11-22 01:08:52,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 75 states have (on average 1.16) internal successors, (87), 76 states have internal predecessors, (87), 48 states have call successors, (48), 16 states have call predecessors, (48), 16 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2022-11-22 01:08:52,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 182 transitions. [2022-11-22 01:08:52,517 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 182 transitions. Word has length 94 [2022-11-22 01:08:52,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:08:52,517 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 182 transitions. [2022-11-22 01:08:52,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 7 states have internal predecessors, (32), 5 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2022-11-22 01:08:52,518 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 182 transitions. [2022-11-22 01:08:52,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-22 01:08:52,519 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:08:52,519 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:08:52,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bc2f75-9977-4449-9cf1-9029385f9e58/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 01:08:52,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bc2f75-9977-4449-9cf1-9029385f9e58/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:08:52,732 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:08:52,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:08:52,733 INFO L85 PathProgramCache]: Analyzing trace with hash 833723995, now seen corresponding path program 1 times [2022-11-22 01:08:52,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:08:52,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326569674] [2022-11-22 01:08:52,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:08:52,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:08:52,827 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 01:08:52,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1795226763] [2022-11-22 01:08:52,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:08:52,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:08:52,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bc2f75-9977-4449-9cf1-9029385f9e58/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:08:52,829 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bc2f75-9977-4449-9cf1-9029385f9e58/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:08:52,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bc2f75-9977-4449-9cf1-9029385f9e58/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-22 01:08:55,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:08:55,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 2644 conjuncts, 411 conjunts are in the unsatisfiable core [2022-11-22 01:08:55,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:08:55,276 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 01:08:56,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:56,092 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 01:08:56,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:08:56,102 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 01:08:56,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:08:57,884 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-11-22 01:08:57,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 37 [2022-11-22 01:08:57,899 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 01:08:57,909 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 01:08:58,329 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-11-22 01:08:58,329 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 01:09:01,880 INFO L321 Elim1Store]: treesize reduction 91, result has 30.0 percent of original size [2022-11-22 01:09:01,880 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 46 treesize of output 69 [2022-11-22 01:09:01,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-22 01:09:01,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-22 01:09:02,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-22 01:09:05,113 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:09:05,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:05,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:05,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:05,120 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 152 treesize of output 181 [2022-11-22 01:09:05,225 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-22 01:09:05,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 96 treesize of output 129 [2022-11-22 01:09:05,325 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:09:05,325 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 93 treesize of output 125 [2022-11-22 01:09:05,418 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-22 01:09:05,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 86 treesize of output 119 [2022-11-22 01:09:06,876 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-22 01:09:06,876 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 76 treesize of output 60 [2022-11-22 01:09:06,889 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2022-11-22 01:09:07,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:07,183 INFO L321 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-11-22 01:09:07,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 76 treesize of output 72 [2022-11-22 01:09:07,213 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2022-11-22 01:09:07,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:07,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:07,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:07,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:07,256 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 43 [2022-11-22 01:09:16,978 INFO L321 Elim1Store]: treesize reduction 33, result has 2.9 percent of original size [2022-11-22 01:09:16,979 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 27 [2022-11-22 01:09:22,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:22,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:22,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:22,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:22,193 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 51 [2022-11-22 01:09:31,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:31,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:31,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:31,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:31,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 51 [2022-11-22 01:09:34,417 INFO L321 Elim1Store]: treesize reduction 33, result has 2.9 percent of original size [2022-11-22 01:09:34,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 9 [2022-11-22 01:09:45,999 WARN L233 SmtUtils]: Spent 5.09s on a formula simplification. DAG size of input: 150 DAG size of output: 64 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:10:35,880 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 7 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 498 treesize of output 809 [2022-11-22 01:10:36,103 INFO L217 Elim1Store]: Index analysis took 123 ms [2022-11-22 01:10:37,387 INFO L321 Elim1Store]: treesize reduction 126, result has 28.4 percent of original size [2022-11-22 01:10:37,388 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 7 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 11 new quantified variables, introduced 7 case distinctions, treesize of input 486 treesize of output 864 [2022-11-22 01:10:37,945 INFO L217 Elim1Store]: Index analysis took 389 ms [2022-11-22 01:10:37,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 7 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 316 treesize of output 627 [2022-11-22 01:10:39,359 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 22 proven. 71 refuted. 2 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-22 01:10:39,360 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:10:58,847 WARN L233 SmtUtils]: Spent 17.96s on a formula simplification that was a NOOP. DAG size: 225 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 01:11:18,748 WARN L233 SmtUtils]: Spent 19.89s on a formula simplification that was a NOOP. DAG size: 173 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 01:12:16,828 WARN L233 SmtUtils]: Spent 58.05s on a formula simplification. DAG size of input: 396 DAG size of output: 192 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 01:12:39,496 WARN L233 SmtUtils]: Spent 22.66s on a formula simplification that was a NOOP. DAG size: 184 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 01:13:19,088 WARN L233 SmtUtils]: Spent 5.81s on a formula simplification. DAG size of input: 80 DAG size of output: 67 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:13:19,091 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:13:19,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326569674] [2022-11-22 01:13:19,092 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 01:13:19,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1795226763] [2022-11-22 01:13:19,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1795226763] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:13:19,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1500312423] [2022-11-22 01:13:19,124 INFO L159 IcfgInterpreter]: Started Sifa with 55 locations of interest [2022-11-22 01:13:19,124 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:13:19,130 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:13:19,137 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:13:19,137 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:13:21,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:13:21,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:13:22,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:13:22,172 INFO L217 Elim1Store]: Index analysis took 603 ms [2022-11-22 01:13:42,130 WARN L233 SmtUtils]: Spent 19.90s on a formula simplification. DAG size of input: 1740 DAG size of output: 1157 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-22 01:13:42,139 INFO L321 Elim1Store]: treesize reduction 1938, result has 47.2 percent of original size [2022-11-22 01:13:42,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 196 select indices, 196 select index equivalence classes, 19114 disjoint index pairs (out of 19110 index pairs), introduced 196 new quantified variables, introduced 193 case distinctions, treesize of input 987 treesize of output 2338 [2022-11-22 01:13:45,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:13:45,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:13:46,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:13:46,692 INFO L217 Elim1Store]: Index analysis took 1180 ms [2022-11-22 01:14:19,242 WARN L233 SmtUtils]: Spent 32.51s on a formula simplification. DAG size of input: 2128 DAG size of output: 1161 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-22 01:14:19,247 INFO L321 Elim1Store]: treesize reduction 3474, result has 33.3 percent of original size [2022-11-22 01:14:19,263 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 198 select indices, 198 select index equivalence classes, 19310 disjoint index pairs (out of 19503 index pairs), introduced 198 new quantified variables, introduced 386 case distinctions, treesize of input 997 treesize of output 2357 [2022-11-22 01:15:28,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:28,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:28,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 29 [2022-11-22 01:15:28,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:28,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 43 [2022-11-22 01:15:28,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:28,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 43 [2022-11-22 01:15:28,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 01:15:31,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:32,051 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-22 01:15:32,056 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 198 select indices, 198 select index equivalence classes, 19501 disjoint index pairs (out of 19503 index pairs), introduced 198 new quantified variables, introduced 2 case distinctions, treesize of input 991 treesize of output 595 [2022-11-22 01:15:32,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:32,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:32,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:32,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:32,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:32,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:32,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:32,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:32,710 INFO L217 Elim1Store]: Index analysis took 145 ms [2022-11-22 01:15:32,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:32,728 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:15:32,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:32,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:32,745 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:15:32,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:32,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:32,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:32,853 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-11-22 01:15:32,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 195 select indices, 195 select index equivalence classes, 17055 disjoint index pairs (out of 18915 index pairs), introduced 195 new quantified variables, introduced 18 case distinctions, treesize of input 1752 treesize of output 594 [2022-11-22 01:15:33,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:33,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:33,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:33,514 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 197 select indices, 197 select index equivalence classes, 19309 disjoint index pairs (out of 19306 index pairs), introduced 197 new quantified variables, introduced 0 case distinctions, treesize of input 986 treesize of output 592 [2022-11-22 01:15:34,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,121 INFO L217 Elim1Store]: Index analysis took 115 ms [2022-11-22 01:15:34,157 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 195 select indices, 195 select index equivalence classes, 17052 disjoint index pairs (out of 18915 index pairs), introduced 195 new quantified variables, introduced 0 case distinctions, treesize of input 1752 treesize of output 586 [2022-11-22 01:15:34,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:34,623 INFO L217 Elim1Store]: Index analysis took 101 ms [2022-11-22 01:15:34,630 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 55 select indices, 55 select index equivalence classes, 1243 disjoint index pairs (out of 1485 index pairs), introduced 55 new quantified variables, introduced 0 case distinctions, treesize of input 644 treesize of output 304 [2022-11-22 01:15:44,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:44,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:44,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:44,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:44,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:44,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:44,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:44,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:44,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:44,601 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:15:44,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:44,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:44,611 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:15:44,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:44,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:44,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:44,679 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-22 01:15:44,685 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 195 select indices, 195 select index equivalence classes, 17055 disjoint index pairs (out of 18915 index pairs), introduced 195 new quantified variables, introduced 18 case distinctions, treesize of input 1752 treesize of output 586 [2022-11-22 01:15:45,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:45,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:45,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:45,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:45,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:45,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:45,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:45,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:45,255 INFO L217 Elim1Store]: Index analysis took 119 ms [2022-11-22 01:15:45,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:45,269 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:15:45,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:45,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:45,279 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:15:45,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:45,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:45,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:45,359 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-11-22 01:15:45,365 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 195 select indices, 195 select index equivalence classes, 17055 disjoint index pairs (out of 18915 index pairs), introduced 195 new quantified variables, introduced 18 case distinctions, treesize of input 1752 treesize of output 594 [2022-11-22 01:15:45,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:45,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:45,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:45,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 198 select indices, 198 select index equivalence classes, 19505 disjoint index pairs (out of 19503 index pairs), introduced 198 new quantified variables, introduced 0 case distinctions, treesize of input 991 treesize of output 595 [2022-11-22 01:15:46,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 197 select indices, 197 select index equivalence classes, 19309 disjoint index pairs (out of 19306 index pairs), introduced 197 new quantified variables, introduced 0 case distinctions, treesize of input 986 treesize of output 592 [2022-11-22 01:15:46,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:46,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 55 select indices, 55 select index equivalence classes, 1243 disjoint index pairs (out of 1485 index pairs), introduced 55 new quantified variables, introduced 0 case distinctions, treesize of input 644 treesize of output 304 [2022-11-22 01:15:47,859 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:15:47,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:15:47,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:15:47,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:15:47,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:15:47,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 01:15:47,964 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 01:15:47,975 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 01:15:48,018 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:15:48,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:15:48,055 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:15:48,057 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 38 [2022-11-22 01:15:48,097 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:15:48,104 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:15:48,145 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:15:48,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 38 [2022-11-22 01:15:48,287 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 01:15:49,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 197 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-22 01:15:49,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:49,428 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 197 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 30 [2022-11-22 01:15:49,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:49,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 197 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 24 [2022-11-22 01:15:51,270 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 197 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-22 01:15:51,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:51,375 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 197 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 30 [2022-11-22 01:15:51,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:15:51,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 197 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 24 [2022-11-22 01:15:52,326 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-22 01:15:52,327 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 21 [2022-11-22 01:15:52,354 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-11-22 01:16:11,275 INFO L197 IcfgInterpreter]: Interpreting procedure aws_array_list_pop_back with input of size 133 for LOIs [2022-11-22 01:16:12,593 INFO L197 IcfgInterpreter]: Interpreting procedure aws_array_list_length with input of size 69 for LOIs [2022-11-22 01:16:13,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-22 01:16:13,367 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-22 01:16:13,642 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 43 for LOIs [2022-11-22 01:16:13,653 INFO L197 IcfgInterpreter]: Interpreting procedure aws_array_list_is_valid with input of size 48 for LOIs [2022-11-22 01:16:13,672 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:16:13,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:16:13,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:16:13,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:16:13,777 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:16:13,777 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 10 [2022-11-22 01:16:13,789 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:16:13,801 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:16:13,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:16:13,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:16:13,899 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:16:13,900 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 10 [2022-11-22 01:16:13,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:16:13,927 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:16:14,404 INFO L321 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2022-11-22 01:16:14,405 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 174 treesize of output 191 [2022-11-22 01:16:15,091 INFO L197 IcfgInterpreter]: Interpreting procedure aws_array_list_is_bounded with input of size 2819 for LOIs [2022-11-22 01:16:18,351 INFO L197 IcfgInterpreter]: Interpreting procedure aws_mul_size_checked with input of size 108 for LOIs [2022-11-22 01:16:19,147 INFO L197 IcfgInterpreter]: Interpreting procedure __CPROVER_overflow_mult with input of size 94 for LOIs [2022-11-22 01:16:19,194 INFO L197 IcfgInterpreter]: Interpreting procedure ensure_array_list_has_allocated_data_member with input of size 2869 for LOIs [2022-11-22 01:18:07,558 INFO L197 IcfgInterpreter]: Interpreting procedure can_fail_allocator with input of size 2864 for LOIs [2022-11-22 01:18:14,268 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 2894 for LOIs [2022-11-22 01:18:25,992 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:21:08,769 WARN L233 SmtUtils]: Spent 2.54m on a formula simplification. DAG size of input: 2815 DAG size of output: 2431 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)