./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_linked_list_pop_front_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_99822c15-b193-4a18-8976-389ce359334a/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99822c15-b193-4a18-8976-389ce359334a/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99822c15-b193-4a18-8976-389ce359334a/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99822c15-b193-4a18-8976-389ce359334a/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_linked_list_pop_front_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99822c15-b193-4a18-8976-389ce359334a/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99822c15-b193-4a18-8976-389ce359334a/bin/utaipan-ByfvJB40ur --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 edd3fac09d24fc037292743bb080afb788cb886b05d29648be5f73c1396cfbb6 --- 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-38b53e6 [2022-11-25 22:40:43,217 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:40:43,219 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:40:43,262 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:40:43,267 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:40:43,268 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:40:43,271 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:40:43,276 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:40:43,279 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:40:43,280 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:40:43,281 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:40:43,283 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:40:43,283 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:40:43,284 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:40:43,285 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:40:43,286 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:40:43,287 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:40:43,292 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:40:43,294 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:40:43,298 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:40:43,303 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:40:43,305 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:40:43,306 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:40:43,307 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:40:43,315 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:40:43,316 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:40:43,316 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:40:43,317 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:40:43,317 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:40:43,318 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:40:43,319 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:40:43,320 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:40:43,320 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:40:43,321 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:40:43,322 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:40:43,322 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:40:43,323 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:40:43,324 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:40:43,324 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:40:43,325 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:40:43,326 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:40:43,326 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99822c15-b193-4a18-8976-389ce359334a/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-25 22:40:43,353 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:40:43,353 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:40:43,354 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:40:43,354 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:40:43,355 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:40:43,355 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:40:43,355 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:40:43,356 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:40:43,356 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:40:43,356 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:40:43,356 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:40:43,357 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:40:43,357 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:40:43,357 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:40:43,357 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:40:43,358 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:40:43,358 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:40:43,358 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:40:43,359 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:40:43,359 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:40:43,359 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:40:43,360 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:40:43,360 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:40:43,360 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:40:43,360 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:40:43,361 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:40:43,361 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:40:43,361 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:40:43,361 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:40:43,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:40:43,362 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:40:43,362 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:40:43,362 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:40:43,363 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:40:43,363 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:40:43,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:40:43,363 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:40:43,364 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:40:43,364 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_99822c15-b193-4a18-8976-389ce359334a/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99822c15-b193-4a18-8976-389ce359334a/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> edd3fac09d24fc037292743bb080afb788cb886b05d29648be5f73c1396cfbb6 [2022-11-25 22:40:43,589 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:40:43,620 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:40:43,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:40:43,624 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:40:43,624 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:40:43,626 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99822c15-b193-4a18-8976-389ce359334a/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/aws-c-common/aws_linked_list_pop_front_harness.i [2022-11-25 22:40:46,710 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:40:47,212 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:40:47,213 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99822c15-b193-4a18-8976-389ce359334a/sv-benchmarks/c/aws-c-common/aws_linked_list_pop_front_harness.i [2022-11-25 22:40:47,253 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99822c15-b193-4a18-8976-389ce359334a/bin/utaipan-ByfvJB40ur/data/ce28615fe/bd9f791c5856419a8afbbf0288a332b7/FLAGd18569f5d [2022-11-25 22:40:47,271 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99822c15-b193-4a18-8976-389ce359334a/bin/utaipan-ByfvJB40ur/data/ce28615fe/bd9f791c5856419a8afbbf0288a332b7 [2022-11-25 22:40:47,274 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:40:47,275 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:40:47,276 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:40:47,277 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:40:47,280 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:40:47,281 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:40:47" (1/1) ... [2022-11-25 22:40:47,282 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4faa2def and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:40:47, skipping insertion in model container [2022-11-25 22:40:47,283 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:40:47" (1/1) ... [2022-11-25 22:40:47,291 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:40:47,393 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:40:47,640 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_99822c15-b193-4a18-8976-389ce359334a/sv-benchmarks/c/aws-c-common/aws_linked_list_pop_front_harness.i[4499,4512] [2022-11-25 22:40:47,648 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_99822c15-b193-4a18-8976-389ce359334a/sv-benchmarks/c/aws-c-common/aws_linked_list_pop_front_harness.i[4559,4572] [2022-11-25 22:40:48,685 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 22:40:48,703 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:40:48,707 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:40:48,708 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:40:48,709 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:40:48,712 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:40:48,727 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:40:48,728 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:40:48,730 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:40:48,731 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:40:48,733 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:40:48,734 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:40:48,735 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:40:48,735 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:40:48,805 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:40:48,805 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:40:48,807 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:40:48,826 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-25 22:40:48,831 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-25 22:40:48,832 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-25 22:40:49,091 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 22:40:49,093 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-25 22:40:49,094 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-25 22:40:49,096 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-25 22:40:49,099 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-25 22:40:49,102 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-25 22:40:49,103 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-25 22:40:49,105 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-25 22:40:49,105 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-25 22:40:49,107 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-25 22:40:49,120 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-25 22:40:49,283 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-25 22:40:49,311 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:40:49,340 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:40:49,365 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_99822c15-b193-4a18-8976-389ce359334a/sv-benchmarks/c/aws-c-common/aws_linked_list_pop_front_harness.i[4499,4512] [2022-11-25 22:40:49,365 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_99822c15-b193-4a18-8976-389ce359334a/sv-benchmarks/c/aws-c-common/aws_linked_list_pop_front_harness.i[4559,4572] [2022-11-25 22:40:49,447 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 22:40:49,454 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:40:49,454 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:40:49,455 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:40:49,455 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:40:49,456 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:40:49,474 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:40:49,475 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:40:49,476 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:40:49,477 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:40:49,482 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:40:49,482 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:40:49,483 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:40:49,483 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:40:49,490 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:40:49,490 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:40:49,493 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:40:49,511 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-25 22:40:49,513 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-25 22:40:49,513 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-25 22:40:49,550 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 22:40:49,551 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-25 22:40:49,552 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-25 22:40:49,553 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-25 22:40:49,553 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-25 22:40:49,554 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-25 22:40:49,555 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-25 22:40:49,555 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-25 22:40:49,556 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-25 22:40:49,557 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-25 22:40:49,558 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-25 22:40:49,602 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-25 22:40:49,624 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:40:49,840 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:40:49,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:40:49 WrapperNode [2022-11-25 22:40:49,841 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:40:49,842 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:40:49,842 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:40:49,842 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:40:49,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:40:49" (1/1) ... [2022-11-25 22:40:49,906 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:40:49" (1/1) ... [2022-11-25 22:40:49,964 INFO L138 Inliner]: procedures = 679, calls = 1045, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 224 [2022-11-25 22:40:49,965 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:40:49,965 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:40:49,966 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:40:49,966 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:40:49,976 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:40:49" (1/1) ... [2022-11-25 22:40:49,976 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:40:49" (1/1) ... [2022-11-25 22:40:49,981 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:40:49" (1/1) ... [2022-11-25 22:40:49,987 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:40:49" (1/1) ... [2022-11-25 22:40:50,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:40:49" (1/1) ... [2022-11-25 22:40:50,027 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:40:49" (1/1) ... [2022-11-25 22:40:50,030 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:40:49" (1/1) ... [2022-11-25 22:40:50,033 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:40:49" (1/1) ... [2022-11-25 22:40:50,038 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:40:50,051 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:40:50,051 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:40:50,051 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:40:50,052 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:40:49" (1/1) ... [2022-11-25 22:40:50,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:40:50,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99822c15-b193-4a18-8976-389ce359334a/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:40:50,083 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99822c15-b193-4a18-8976-389ce359334a/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:40:50,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99822c15-b193-4a18-8976-389ce359334a/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:40:50,131 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-11-25 22:40:50,132 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-11-25 22:40:50,132 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_remove [2022-11-25 22:40:50,132 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_remove [2022-11-25 22:40:50,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:40:50,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 22:40:50,133 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 22:40:50,133 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 22:40:50,133 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2022-11-25 22:40:50,134 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2022-11-25 22:40:50,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 22:40:50,134 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_is_valid [2022-11-25 22:40:50,134 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_is_valid [2022-11-25 22:40:50,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:40:50,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 22:40:50,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:40:50,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:40:50,135 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_empty [2022-11-25 22:40:50,135 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_empty [2022-11-25 22:40:50,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 22:40:50,135 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 22:40:50,136 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-25 22:40:50,136 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-25 22:40:50,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:40:50,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 22:40:50,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 22:40:50,137 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-25 22:40:50,137 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-25 22:40:50,137 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_prev_is_valid [2022-11-25 22:40:50,138 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_prev_is_valid [2022-11-25 22:40:50,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:40:50,508 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:40:50,511 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:40:50,915 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:40:51,185 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:40:51,185 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-25 22:40:51,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:40:51 BoogieIcfgContainer [2022-11-25 22:40:51,188 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:40:51,193 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:40:51,193 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:40:51,196 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:40:51,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:40:47" (1/3) ... [2022-11-25 22:40:51,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79e1f3fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:40:51, skipping insertion in model container [2022-11-25 22:40:51,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:40:49" (2/3) ... [2022-11-25 22:40:51,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79e1f3fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:40:51, skipping insertion in model container [2022-11-25 22:40:51,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:40:51" (3/3) ... [2022-11-25 22:40:51,202 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_linked_list_pop_front_harness.i [2022-11-25 22:40:51,221 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:40:51,221 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 22:40:51,271 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:40:51,278 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;@24f130ee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:40:51,278 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 22:40:51,287 INFO L276 IsEmpty]: Start isEmpty. Operand has 99 states, 51 states have (on average 1.2352941176470589) internal successors, (63), 52 states have internal predecessors, (63), 37 states have call successors, (37), 10 states have call predecessors, (37), 10 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2022-11-25 22:40:51,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-25 22:40:51,298 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:40:51,298 INFO L195 NwaCegarLoop]: trace histogram [9, 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] [2022-11-25 22:40:51,300 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:40:51,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:40:51,308 INFO L85 PathProgramCache]: Analyzing trace with hash 900379934, now seen corresponding path program 1 times [2022-11-25 22:40:51,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:40:51,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270042750] [2022-11-25 22:40:51,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:40:51,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:40:51,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:40:52,428 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-11-25 22:40:52,429 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:40:52,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270042750] [2022-11-25 22:40:52,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270042750] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:40:52,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99727617] [2022-11-25 22:40:52,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:40:52,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:40:52,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99822c15-b193-4a18-8976-389ce359334a/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:40:52,435 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99822c15-b193-4a18-8976-389ce359334a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:40:52,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99822c15-b193-4a18-8976-389ce359334a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 22:40:52,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:40:52,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 72 conjunts are in the unsatisfiable core [2022-11-25 22:40:52,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:40:52,967 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 18 treesize of output 19 [2022-11-25 22:40:52,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 18 treesize of output 19 [2022-11-25 22:40:53,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:40:53,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:40:53,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:40:53,093 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 41 [2022-11-25 22:40:53,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:40:53,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:40:53,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:40:53,123 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 43 [2022-11-25 22:40:55,996 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-25 22:40:55,996 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:40:55,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [99727617] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:40:55,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 22:40:55,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [5] total 13 [2022-11-25 22:40:55,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985878966] [2022-11-25 22:40:56,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:40:56,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 22:40:56,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:40:56,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 22:40:56,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-25 22:40:56,038 INFO L87 Difference]: Start difference. First operand has 99 states, 51 states have (on average 1.2352941176470589) internal successors, (63), 52 states have internal predecessors, (63), 37 states have call successors, (37), 10 states have call predecessors, (37), 10 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Second operand has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 6 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) [2022-11-25 22:40:57,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:40:57,922 INFO L93 Difference]: Finished difference Result 245 states and 355 transitions. [2022-11-25 22:40:57,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 22:40:57,925 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 6 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) Word has length 70 [2022-11-25 22:40:57,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:40:57,935 INFO L225 Difference]: With dead ends: 245 [2022-11-25 22:40:57,935 INFO L226 Difference]: Without dead ends: 157 [2022-11-25 22:40:57,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 51 SyntacticMatches, 12 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-11-25 22:40:57,942 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 79 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-25 22:40:57,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 579 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-25 22:40:57,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-11-25 22:40:58,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 154. [2022-11-25 22:40:58,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 77 states have (on average 1.2077922077922079) internal successors, (93), 79 states have internal predecessors, (93), 60 states have call successors, (60), 17 states have call predecessors, (60), 16 states have return successors, (59), 57 states have call predecessors, (59), 59 states have call successors, (59) [2022-11-25 22:40:58,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 212 transitions. [2022-11-25 22:40:58,015 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 212 transitions. Word has length 70 [2022-11-25 22:40:58,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:40:58,016 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 212 transitions. [2022-11-25 22:40:58,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 6 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) [2022-11-25 22:40:58,016 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 212 transitions. [2022-11-25 22:40:58,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-25 22:40:58,019 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:40:58,020 INFO L195 NwaCegarLoop]: trace histogram [9, 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] [2022-11-25 22:40:58,031 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99822c15-b193-4a18-8976-389ce359334a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-25 22:40:58,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99822c15-b193-4a18-8976-389ce359334a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-25 22:40:58,227 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:40:58,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:40:58,228 INFO L85 PathProgramCache]: Analyzing trace with hash 134050646, now seen corresponding path program 1 times [2022-11-25 22:40:58,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:40:58,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815734857] [2022-11-25 22:40:58,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:40:58,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:40:58,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:40:58,640 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-11-25 22:40:58,641 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:40:58,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815734857] [2022-11-25 22:40:58,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815734857] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:40:58,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1141664338] [2022-11-25 22:40:58,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:40:58,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:40:58,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99822c15-b193-4a18-8976-389ce359334a/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:40:58,643 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99822c15-b193-4a18-8976-389ce359334a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:40:58,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99822c15-b193-4a18-8976-389ce359334a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 22:40:58,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:40:58,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 105 conjunts are in the unsatisfiable core [2022-11-25 22:40:58,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:40:58,919 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 [2022-11-25 22:40:59,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 18 treesize of output 19 [2022-11-25 22:40:59,107 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 18 treesize of output 19 [2022-11-25 22:40:59,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:40:59,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:40:59,179 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-25 22:40:59,196 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-25 22:40:59,196 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2022-11-25 22:40:59,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:40:59,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:40:59,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 10 [2022-11-25 22:40:59,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:40:59,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:40:59,229 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-25 22:40:59,247 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-25 22:40:59,247 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 1 case distinctions, treesize of input 32 treesize of output 34 [2022-11-25 22:40:59,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:40:59,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:40:59,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 10 [2022-11-25 22:40:59,296 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-25 22:40:59,296 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-25 22:40:59,445 INFO L321 Elim1Store]: treesize reduction 42, result has 20.8 percent of original size [2022-11-25 22:40:59,448 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 148 treesize of output 158 [2022-11-25 22:40:59,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:40:59,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:40:59,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:40:59,463 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 154 treesize of output 138 [2022-11-25 22:40:59,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:40:59,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:40:59,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:40:59,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 57 [2022-11-25 22:40:59,493 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2022-11-25 22:41:40,137 WARN L233 SmtUtils]: Spent 13.32s on a formula simplification that was a NOOP. DAG size: 619 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:42:10,431 WARN L233 SmtUtils]: Spent 13.80s on a formula simplification that was a NOOP. DAG size: 616 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:42:41,477 WARN L233 SmtUtils]: Spent 13.70s on a formula simplification that was a NOOP. DAG size: 657 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:43:32,542 WARN L233 SmtUtils]: Spent 28.83s on a formula simplification that was a NOOP. DAG size: 654 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:44:17,548 WARN L233 SmtUtils]: Spent 28.78s on a formula simplification that was a NOOP. DAG size: 691 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:45:23,285 WARN L233 SmtUtils]: Spent 36.29s on a formula simplification that was a NOOP. DAG size: 692 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:46:24,196 WARN L233 SmtUtils]: Spent 38.48s on a formula simplification that was a NOOP. DAG size: 740 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:47:39,614 WARN L233 SmtUtils]: Spent 40.37s on a formula simplification that was a NOOP. DAG size: 768 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:48:48,943 WARN L233 SmtUtils]: Spent 44.74s on a formula simplification that was a NOOP. DAG size: 827 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:50:17,712 WARN L233 SmtUtils]: Spent 46.50s on a formula simplification that was a NOOP. DAG size: 882 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:51:27,495 WARN L233 SmtUtils]: Spent 46.81s on a formula simplification that was a NOOP. DAG size: 939 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:52:36,650 WARN L233 SmtUtils]: Spent 46.54s on a formula simplification that was a NOOP. DAG size: 915 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 22:52:40,566 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 2 proven. 17 refuted. 78 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:52:40,566 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:52:46,097 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse4 (+ 16 |c_ULTIMATE.start_aws_linked_list_pop_front_harness_~#list~0#1.offset|)) (.cse2 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base|)) (.cse3 (+ |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset| 16)) (.cse0 (+ |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset| 24)) (.cse9 (+ 8 |c_ULTIMATE.start_aws_linked_list_pop_front_harness_~#list~0#1.offset|))) (and (or (not (= |c_ULTIMATE.start_aws_linked_list_pop_front_harness_~#list~0#1.offset| 0)) (not (= |c_ULTIMATE.start_aws_linked_list_pop_front_harness_~#list~0#1.base| 0))) (or (forall ((v_ArrVal_232 (Array Int Int)) (v_ArrVal_223 (Array Int Int))) (not (= (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| v_ArrVal_232) |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| v_ArrVal_223) |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse0 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base|)) |c_ULTIMATE.start_aws_linked_list_pop_front_harness_~#list~0#1.base|) |c_ULTIMATE.start_aws_linked_list_pop_front_harness_~#list~0#1.offset|) 0))) (forall ((|ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| Int) (v_ArrVal_224 Int)) (not (= (select (select (let ((.cse1 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| (store .cse2 |ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| .cse3)))) (store .cse1 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse1 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse0 v_ArrVal_224))) |c_ULTIMATE.start_aws_linked_list_pop_front_harness_~#list~0#1.base|) |c_ULTIMATE.start_aws_linked_list_pop_front_harness_~#list~0#1.offset|) 0)))) (forall ((v_ArrVal_232 (Array Int Int)) (v_ArrVal_223 (Array Int Int))) (= (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| v_ArrVal_232) |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| v_ArrVal_223) |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse0 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base|)) |c_ULTIMATE.start_aws_linked_list_pop_front_harness_~#list~0#1.base|) .cse4) 0)) (forall ((|ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| Int) (v_ArrVal_224 Int)) (= (select (select (let ((.cse5 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| (store .cse2 |ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| .cse3)))) (store .cse5 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse5 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse0 v_ArrVal_224))) |c_ULTIMATE.start_aws_linked_list_pop_front_harness_~#list~0#1.base|) .cse4) 0)) (let ((.cse6 (+ |c_ULTIMATE.start_aws_linked_list_pop_front_harness_~#list~0#1.offset| 24))) (or (forall ((v_ArrVal_232 (Array Int Int)) (v_ArrVal_223 (Array Int Int))) (not (= (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| v_ArrVal_232) |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| v_ArrVal_223) |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse0 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base|)) |c_ULTIMATE.start_aws_linked_list_pop_front_harness_~#list~0#1.base|) .cse6) 0))) (forall ((|ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| Int) (v_ArrVal_224 Int)) (not (= (select (select (let ((.cse7 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| (store .cse2 |ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| .cse3)))) (store .cse7 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse7 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse0 v_ArrVal_224))) |c_ULTIMATE.start_aws_linked_list_pop_front_harness_~#list~0#1.base|) .cse6) 0))))) (forall ((|ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| Int) (v_ArrVal_224 Int)) (= (select (select (let ((.cse8 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| (store .cse2 |ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| .cse3)))) (store .cse8 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse8 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse0 v_ArrVal_224))) |c_ULTIMATE.start_aws_linked_list_pop_front_harness_~#list~0#1.base|) .cse9) 0)) (forall ((v_ArrVal_232 (Array Int Int)) (v_ArrVal_223 (Array Int Int))) (= (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| v_ArrVal_232) |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| v_ArrVal_223) |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse0 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base|)) |c_ULTIMATE.start_aws_linked_list_pop_front_harness_~#list~0#1.base|) .cse9) 0)))) is different from false [2022-11-25 22:52:46,621 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 22:52:46,622 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 380 treesize of output 457 [2022-11-25 22:52:59,623 WARN L233 SmtUtils]: Spent 12.07s on a formula simplification. DAG size of input: 338 DAG size of output: 140 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 22:52:59,623 INFO L321 Elim1Store]: treesize reduction 955, result has 23.7 percent of original size [2022-11-25 22:52:59,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 11 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 14 new quantified variables, introduced 67 case distinctions, treesize of input 852 treesize of output 2424 [2022-11-25 22:55:25,961 WARN L233 SmtUtils]: Spent 1.68m on a formula simplification. DAG size of input: 401 DAG size of output: 200 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 22:55:25,962 INFO L321 Elim1Store]: treesize reduction 874, result has 36.1 percent of original size [2022-11-25 22:55:25,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 11 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 12 new quantified variables, introduced 76 case distinctions, treesize of input 51174 treesize of output 52499 [2022-11-25 22:55:31,680 WARN L233 SmtUtils]: Spent 5.70s on a formula simplification. DAG size of input: 6917 DAG size of output: 6903 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)