./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7a5e94-e1c2-4a4d-a52b-f6ace5f9f9dd/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7a5e94-e1c2-4a4d-a52b-f6ace5f9f9dd/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7a5e94-e1c2-4a4d-a52b-f6ace5f9f9dd/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7a5e94-e1c2-4a4d-a52b-f6ace5f9f9dd/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7a5e94-e1c2-4a4d-a52b-f6ace5f9f9dd/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7a5e94-e1c2-4a4d-a52b-f6ace5f9f9dd/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6f838ff631dd7d907eee223e4bc065b6ce71a3dd1969d0a88cef9ccdcf3b54d1 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 07:41:06,209 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:41:06,210 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:41:06,223 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:41:06,223 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:41:06,224 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:41:06,225 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:41:06,226 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:41:06,227 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:41:06,228 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:41:06,228 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:41:06,229 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:41:06,229 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:41:06,230 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:41:06,231 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:41:06,232 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:41:06,232 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:41:06,233 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:41:06,234 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:41:06,235 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:41:06,236 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:41:06,237 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:41:06,238 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:41:06,238 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:41:06,241 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:41:06,241 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:41:06,241 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:41:06,242 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:41:06,242 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:41:06,243 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:41:06,243 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:41:06,243 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:41:06,244 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:41:06,245 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:41:06,245 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:41:06,245 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:41:06,246 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:41:06,246 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:41:06,246 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:41:06,247 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:41:06,247 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:41:06,248 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7a5e94-e1c2-4a4d-a52b-f6ace5f9f9dd/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 07:41:06,262 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:41:06,262 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:41:06,262 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:41:06,263 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:41:06,263 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:41:06,263 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:41:06,263 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:41:06,263 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:41:06,263 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:41:06,264 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 07:41:06,264 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:41:06,264 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:41:06,264 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 07:41:06,264 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 07:41:06,264 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:41:06,264 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 07:41:06,264 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 07:41:06,265 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 07:41:06,265 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:41:06,265 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 07:41:06,265 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:41:06,265 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 07:41:06,266 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:41:06,266 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 07:41:06,266 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 07:41:06,266 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:41:06,266 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 07:41:06,266 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:41:06,266 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:41:06,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:41:06,267 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:41:06,267 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 07:41:06,267 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:41:06,267 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 07:41:06,267 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 07:41:06,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 07:41:06,267 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 07:41:06,267 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:41:06,267 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_fd7a5e94-e1c2-4a4d-a52b-f6ace5f9f9dd/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7a5e94-e1c2-4a4d-a52b-f6ace5f9f9dd/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f838ff631dd7d907eee223e4bc065b6ce71a3dd1969d0a88cef9ccdcf3b54d1 [2022-12-14 07:41:06,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:41:06,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:41:06,453 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:41:06,454 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:41:06,454 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:41:06,456 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7a5e94-e1c2-4a4d-a52b-f6ace5f9f9dd/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i [2022-12-14 07:41:09,147 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:41:09,418 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:41:09,419 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7a5e94-e1c2-4a4d-a52b-f6ace5f9f9dd/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i [2022-12-14 07:41:09,452 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7a5e94-e1c2-4a4d-a52b-f6ace5f9f9dd/bin/utaipan-gh47qXpMRh/data/187fd227f/fbc4277ea8c64548be15cd6969738223/FLAG78cb049b8 [2022-12-14 07:41:09,466 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7a5e94-e1c2-4a4d-a52b-f6ace5f9f9dd/bin/utaipan-gh47qXpMRh/data/187fd227f/fbc4277ea8c64548be15cd6969738223 [2022-12-14 07:41:09,469 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:41:09,470 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:41:09,472 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:41:09,472 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:41:09,475 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:41:09,476 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:41:09" (1/1) ... [2022-12-14 07:41:09,477 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@376c4c58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:41:09, skipping insertion in model container [2022-12-14 07:41:09,477 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:41:09" (1/1) ... [2022-12-14 07:41:09,485 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:41:09,553 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:41:09,719 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_fd7a5e94-e1c2-4a4d-a52b-f6ace5f9f9dd/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4493,4506] [2022-12-14 07:41:09,725 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_fd7a5e94-e1c2-4a4d-a52b-f6ace5f9f9dd/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4553,4566] [2022-12-14 07:41:10,302 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 07:41:10,365 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 07:41:10,368 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:41:10,369 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:41:10,369 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:41:10,370 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:41:10,370 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:41:10,372 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 07:41:10,380 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:41:10,380 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 07:41:10,380 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:41:10,382 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:41:10,382 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:41:10,383 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:41:10,384 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 07:41:10,384 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:41:10,385 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:41:10,385 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:41:10,438 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 07:41:10,438 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 07:41:10,439 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 07:41:10,442 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 07:41:10,444 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 07:41:10,444 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 07:41:10,631 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 07:41:10,632 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 07:41:10,633 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 07:41:10,634 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 07:41:10,635 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 07:41:10,636 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 07:41:10,636 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 07:41:10,637 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 07:41:10,637 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 07:41:10,638 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 07:41:10,638 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 07:41:10,743 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:41:10,743 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:41:10,747 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:41:10,749 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 07:41:10,751 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 07:41:10,752 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 07:41:10,753 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:41:10,754 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 07:41:10,757 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 07:41:10,757 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 07:41:10,758 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 07:41:10,758 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 07:41:10,759 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 07:41:10,759 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 07:41:10,788 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 07:41:10,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:41:10,812 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 07:41:10,822 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_fd7a5e94-e1c2-4a4d-a52b-f6ace5f9f9dd/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4493,4506] [2022-12-14 07:41:10,822 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_fd7a5e94-e1c2-4a4d-a52b-f6ace5f9f9dd/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4553,4566] [2022-12-14 07:41:10,843 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 07:41:10,852 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 07:41:10,854 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:41:10,854 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:41:10,854 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:41:10,854 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:41:10,855 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:41:10,856 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 07:41:10,860 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:41:10,860 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 07:41:10,860 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:41:10,861 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:41:10,861 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:41:10,862 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:41:10,862 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 07:41:10,863 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:41:10,863 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:41:10,863 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:41:10,867 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 07:41:10,868 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 07:41:10,868 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 07:41:10,870 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 07:41:10,871 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 07:41:10,872 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 07:41:10,886 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 07:41:10,886 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 07:41:10,887 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 07:41:10,888 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 07:41:10,888 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 07:41:10,889 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 07:41:10,889 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 07:41:10,890 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 07:41:10,890 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 07:41:10,890 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 07:41:10,890 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 07:41:10,909 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:41:10,909 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:41:10,910 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:41:10,911 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 07:41:10,912 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 07:41:10,913 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 07:41:10,913 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:41:10,914 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 07:41:10,915 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 07:41:10,916 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 07:41:10,916 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 07:41:10,916 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 07:41:10,916 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 07:41:10,917 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 07:41:10,928 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 07:41:10,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:41:11,074 INFO L208 MainTranslator]: Completed translation [2022-12-14 07:41:11,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:41:11 WrapperNode [2022-12-14 07:41:11,075 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:41:11,075 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 07:41:11,075 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 07:41:11,075 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 07:41:11,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:41:11" (1/1) ... [2022-12-14 07:41:11,118 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:41:11" (1/1) ... [2022-12-14 07:41:11,151 INFO L138 Inliner]: procedures = 691, calls = 1681, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 648 [2022-12-14 07:41:11,152 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 07:41:11,152 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 07:41:11,152 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 07:41:11,152 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 07:41:11,159 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:41:11" (1/1) ... [2022-12-14 07:41:11,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:41:11" (1/1) ... [2022-12-14 07:41:11,164 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:41:11" (1/1) ... [2022-12-14 07:41:11,164 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:41:11" (1/1) ... [2022-12-14 07:41:11,180 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:41:11" (1/1) ... [2022-12-14 07:41:11,183 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:41:11" (1/1) ... [2022-12-14 07:41:11,187 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:41:11" (1/1) ... [2022-12-14 07:41:11,189 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:41:11" (1/1) ... [2022-12-14 07:41:11,195 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 07:41:11,196 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 07:41:11,196 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 07:41:11,196 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 07:41:11,196 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:41:11" (1/1) ... [2022-12-14 07:41:11,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:41:11,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7a5e94-e1c2-4a4d-a52b-f6ace5f9f9dd/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:41:11,217 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7a5e94-e1c2-4a4d-a52b-f6ace5f9f9dd/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 07:41:11,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7a5e94-e1c2-4a4d-a52b-f6ace5f9f9dd/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 07:41:11,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 07:41:11,251 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-12-14 07:41:11,251 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-12-14 07:41:11,252 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-12-14 07:41:11,252 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-12-14 07:41:11,252 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-12-14 07:41:11,252 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-12-14 07:41:11,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 07:41:11,252 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-12-14 07:41:11,252 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-12-14 07:41:11,252 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 07:41:11,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 07:41:11,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 07:41:11,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 07:41:11,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 07:41:11,253 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-12-14 07:41:11,253 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-12-14 07:41:11,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 07:41:11,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 07:41:11,253 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-12-14 07:41:11,253 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-12-14 07:41:11,253 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-12-14 07:41:11,254 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-12-14 07:41:11,254 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-12-14 07:41:11,254 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-12-14 07:41:11,254 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 07:41:11,254 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 07:41:11,254 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-12-14 07:41:11,254 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-12-14 07:41:11,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 07:41:11,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 07:41:11,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 07:41:11,254 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2022-12-14 07:41:11,255 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2022-12-14 07:41:11,255 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-12-14 07:41:11,255 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-12-14 07:41:11,255 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-12-14 07:41:11,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-12-14 07:41:11,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 07:41:11,255 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-12-14 07:41:11,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-12-14 07:41:11,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 07:41:11,473 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 07:41:11,475 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 07:41:12,204 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 07:41:12,332 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 07:41:12,332 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 07:41:12,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:41:12 BoogieIcfgContainer [2022-12-14 07:41:12,334 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 07:41:12,340 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 07:41:12,340 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 07:41:12,342 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 07:41:12,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:41:09" (1/3) ... [2022-12-14 07:41:12,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a78d026 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:41:12, skipping insertion in model container [2022-12-14 07:41:12,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:41:11" (2/3) ... [2022-12-14 07:41:12,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a78d026 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:41:12, skipping insertion in model container [2022-12-14 07:41:12,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:41:12" (3/3) ... [2022-12-14 07:41:12,344 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_swap_harness.i [2022-12-14 07:41:12,358 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 07:41:12,358 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 07:41:12,394 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 07:41:12,399 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;@1ae02121, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 07:41:12,399 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 07:41:12,402 INFO L276 IsEmpty]: Start isEmpty. Operand has 151 states, 73 states have (on average 1.1369863013698631) internal successors, (83), 74 states have internal predecessors, (83), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2022-12-14 07:41:12,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-12-14 07:41:12,410 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:41:12,410 INFO L195 NwaCegarLoop]: trace histogram [5, 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] [2022-12-14 07:41:12,411 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:41:12,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:41:12,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1102605155, now seen corresponding path program 1 times [2022-12-14 07:41:12,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:41:12,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843049525] [2022-12-14 07:41:12,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:41:12,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:41:12,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:41:13,030 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-14 07:41:13,030 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:41:13,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843049525] [2022-12-14 07:41:13,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843049525] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:41:13,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573368578] [2022-12-14 07:41:13,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:41:13,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:41:13,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7a5e94-e1c2-4a4d-a52b-f6ace5f9f9dd/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:41:13,033 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7a5e94-e1c2-4a4d-a52b-f6ace5f9f9dd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:41:13,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7a5e94-e1c2-4a4d-a52b-f6ace5f9f9dd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 07:41:13,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:41:13,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 1985 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 07:41:13,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:41:13,461 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-14 07:41:13,461 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:41:13,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573368578] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:41:13,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 07:41:13,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2022-12-14 07:41:13,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788435444] [2022-12-14 07:41:13,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:41:13,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:41:13,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:41:13,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:41:13,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:41:13,491 INFO L87 Difference]: Start difference. First operand has 151 states, 73 states have (on average 1.1369863013698631) internal successors, (83), 74 states have internal predecessors, (83), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-12-14 07:41:13,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:41:13,803 INFO L93 Difference]: Finished difference Result 273 states and 398 transitions. [2022-12-14 07:41:13,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 07:41:13,805 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 54 [2022-12-14 07:41:13,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:41:13,812 INFO L225 Difference]: With dead ends: 273 [2022-12-14 07:41:13,812 INFO L226 Difference]: Without dead ends: 151 [2022-12-14 07:41:13,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-12-14 07:41:13,817 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 31 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 07:41:13,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 582 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 07:41:13,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-12-14 07:41:13,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2022-12-14 07:41:13,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 73 states have (on average 1.1232876712328768) internal successors, (82), 75 states have internal predecessors, (82), 61 states have call successors, (61), 15 states have call predecessors, (61), 16 states have return successors, (68), 60 states have call predecessors, (68), 60 states have call successors, (68) [2022-12-14 07:41:13,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 211 transitions. [2022-12-14 07:41:13,857 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 211 transitions. Word has length 54 [2022-12-14 07:41:13,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:41:13,857 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 211 transitions. [2022-12-14 07:41:13,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-12-14 07:41:13,857 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 211 transitions. [2022-12-14 07:41:13,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-12-14 07:41:13,859 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:41:13,859 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:41:13,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7a5e94-e1c2-4a4d-a52b-f6ace5f9f9dd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 07:41:14,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7a5e94-e1c2-4a4d-a52b-f6ace5f9f9dd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-12-14 07:41:14,061 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:41:14,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:41:14,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1377790876, now seen corresponding path program 1 times [2022-12-14 07:41:14,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:41:14,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120790132] [2022-12-14 07:41:14,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:41:14,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:41:14,219 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:41:14,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [769112602] [2022-12-14 07:41:14,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:41:14,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:41:14,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7a5e94-e1c2-4a4d-a52b-f6ace5f9f9dd/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:41:14,221 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7a5e94-e1c2-4a4d-a52b-f6ace5f9f9dd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:41:14,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7a5e94-e1c2-4a4d-a52b-f6ace5f9f9dd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 07:41:14,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:41:14,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 2117 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 07:41:14,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:41:14,626 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-14 07:41:14,626 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:41:14,626 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:41:14,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120790132] [2022-12-14 07:41:14,626 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 07:41:14,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769112602] [2022-12-14 07:41:14,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769112602] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:41:14,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:41:14,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 07:41:14,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273670836] [2022-12-14 07:41:14,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:41:14,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 07:41:14,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:41:14,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 07:41:14,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-14 07:41:14,629 INFO L87 Difference]: Start difference. First operand 151 states and 211 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2022-12-14 07:41:15,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:41:15,069 INFO L93 Difference]: Finished difference Result 278 states and 397 transitions. [2022-12-14 07:41:15,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 07:41:15,069 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 63 [2022-12-14 07:41:15,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:41:15,071 INFO L225 Difference]: With dead ends: 278 [2022-12-14 07:41:15,071 INFO L226 Difference]: Without dead ends: 161 [2022-12-14 07:41:15,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-14 07:41:15,073 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 36 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 07:41:15,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 889 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 07:41:15,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-12-14 07:41:15,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2022-12-14 07:41:15,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 77 states have (on average 1.1168831168831168) internal successors, (86), 79 states have internal predecessors, (86), 66 states have call successors, (66), 16 states have call predecessors, (66), 17 states have return successors, (73), 65 states have call predecessors, (73), 65 states have call successors, (73) [2022-12-14 07:41:15,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 225 transitions. [2022-12-14 07:41:15,090 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 225 transitions. Word has length 63 [2022-12-14 07:41:15,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:41:15,090 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 225 transitions. [2022-12-14 07:41:15,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2022-12-14 07:41:15,091 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 225 transitions. [2022-12-14 07:41:15,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-12-14 07:41:15,092 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:41:15,092 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 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] [2022-12-14 07:41:15,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7a5e94-e1c2-4a4d-a52b-f6ace5f9f9dd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 07:41:15,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7a5e94-e1c2-4a4d-a52b-f6ace5f9f9dd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:41:15,294 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:41:15,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:41:15,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1134301790, now seen corresponding path program 1 times [2022-12-14 07:41:15,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:41:15,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41348728] [2022-12-14 07:41:15,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:41:15,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:41:15,470 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 07:41:15,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2146036154] [2022-12-14 07:41:15,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:41:15,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:41:15,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7a5e94-e1c2-4a4d-a52b-f6ace5f9f9dd/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:41:15,472 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7a5e94-e1c2-4a4d-a52b-f6ace5f9f9dd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:41:15,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd7a5e94-e1c2-4a4d-a52b-f6ace5f9f9dd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 07:41:15,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:41:15,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 2381 conjuncts, 292 conjunts are in the unsatisfiable core [2022-12-14 07:41:15,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:41:15,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 07:41:16,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 21 treesize of output 20 [2022-12-14 07:41:16,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 36 [2022-12-14 07:42:07,146 WARN L233 SmtUtils]: Spent 49.63s on a formula simplification. DAG size of input: 109 DAG size of output: 62 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 07:42:07,147 INFO L321 Elim1Store]: treesize reduction 202, result has 38.6 percent of original size [2022-12-14 07:42:07,147 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 196 treesize of output 337 [2022-12-14 07:42:07,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:42:07,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:42:07,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:42:07,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 187 treesize of output 216 [2022-12-14 07:42:07,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:42:07,215 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 0 case distinctions, treesize of input 130 treesize of output 153