./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/memset_override_0_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/memset_override_0_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI --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 5db0d3c47797ff0a215821e8d5fa38ab9190be93d125d3ffd24136b371560f6c --- 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-5e519f3 [2022-11-03 03:36:42,286 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:36:42,289 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:36:42,337 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:36:42,338 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:36:42,343 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:36:42,345 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:36:42,350 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:36:42,352 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:36:42,358 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:36:42,359 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:36:42,361 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:36:42,361 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:36:42,364 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:36:42,365 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:36:42,367 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:36:42,369 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:36:42,370 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:36:42,371 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:36:42,380 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:36:42,381 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:36:42,383 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:36:42,386 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:36:42,387 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:36:42,395 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:36:42,395 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:36:42,396 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:36:42,397 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:36:42,398 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:36:42,399 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:36:42,400 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:36:42,401 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:36:42,406 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:36:42,408 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:36:42,410 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:36:42,410 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:36:42,411 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:36:42,411 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:36:42,412 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:36:42,413 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:36:42,413 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:36:42,414 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 03:36:42,454 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:36:42,454 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:36:42,455 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:36:42,455 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:36:42,456 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:36:42,457 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:36:42,457 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:36:42,457 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:36:42,457 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:36:42,457 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:36:42,459 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:36:42,459 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:36:42,459 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:36:42,459 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:36:42,459 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:36:42,460 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:36:42,460 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:36:42,460 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:36:42,461 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:36:42,461 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:36:42,461 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:36:42,462 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:36:42,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:36:42,462 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:36:42,462 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:36:42,462 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:36:42,463 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:36:42,463 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:36:42,463 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:36:42,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:36:42,464 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:36:42,464 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:36:42,464 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:36:42,464 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:36:42,465 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:36:42,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:36:42,465 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:36:42,465 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:36:42,465 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_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5db0d3c47797ff0a215821e8d5fa38ab9190be93d125d3ffd24136b371560f6c [2022-11-03 03:36:42,795 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:36:42,829 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:36:42,832 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:36:42,833 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:36:42,834 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:36:42,835 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/aws-c-common/memset_override_0_harness.i [2022-11-03 03:36:42,920 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/data/8d21d8336/86102442223b4c2895dc6ed346bbe50b/FLAGe0495b02e [2022-11-03 03:36:43,620 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:36:43,620 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i [2022-11-03 03:36:43,663 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/data/8d21d8336/86102442223b4c2895dc6ed346bbe50b/FLAGe0495b02e [2022-11-03 03:36:43,790 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/data/8d21d8336/86102442223b4c2895dc6ed346bbe50b [2022-11-03 03:36:43,793 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:36:43,796 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:36:43,799 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:36:43,800 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:36:43,804 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:36:43,806 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:36:43" (1/1) ... [2022-11-03 03:36:43,807 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23e1af76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:36:43, skipping insertion in model container [2022-11-03 03:36:43,808 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:36:43" (1/1) ... [2022-11-03 03:36:43,816 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:36:43,930 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:36:44,278 WARN L230 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_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4491,4504] [2022-11-03 03:36:44,287 WARN L230 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_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4551,4564] [2022-11-03 03:36:44,986 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:36:44,987 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:36:44,987 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:36:44,989 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:36:44,998 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:36:45,025 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:36:45,028 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:36:45,032 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:36:45,035 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:36:45,041 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:36:45,044 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:36:45,046 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:36:45,048 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:36:45,251 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-03 03:36:45,254 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-03 03:36:45,257 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-03 03:36:45,259 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-03 03:36:45,262 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-03 03:36:45,263 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-03 03:36:45,267 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-03 03:36:45,270 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-03 03:36:45,271 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-03 03:36:45,274 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-03 03:36:45,389 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:36:45,403 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:36:45,434 WARN L230 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_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4491,4504] [2022-11-03 03:36:45,435 WARN L230 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_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4551,4564] [2022-11-03 03:36:45,503 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:36:45,504 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:36:45,504 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:36:45,505 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:36:45,506 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:36:45,514 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:36:45,514 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:36:45,515 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:36:45,516 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:36:45,517 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:36:45,518 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:36:45,518 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:36:45,518 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:36:45,536 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-03 03:36:45,537 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-03 03:36:45,538 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-03 03:36:45,539 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-03 03:36:45,540 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-03 03:36:45,541 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-03 03:36:45,541 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-03 03:36:45,542 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-03 03:36:45,543 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-03 03:36:45,543 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-03 03:36:45,562 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:36:45,715 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:36:45,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:36:45 WrapperNode [2022-11-03 03:36:45,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:36:45,717 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:36:45,717 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:36:45,717 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:36:45,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:36:45" (1/1) ... [2022-11-03 03:36:45,820 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:36:45" (1/1) ... [2022-11-03 03:36:45,861 INFO L138 Inliner]: procedures = 592, calls = 609, calls flagged for inlining = 38, calls inlined = 6, statements flattened = 85 [2022-11-03 03:36:45,862 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:36:45,863 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:36:45,863 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:36:45,863 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:36:45,872 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:36:45" (1/1) ... [2022-11-03 03:36:45,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:36:45" (1/1) ... [2022-11-03 03:36:45,875 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:36:45" (1/1) ... [2022-11-03 03:36:45,875 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:36:45" (1/1) ... [2022-11-03 03:36:45,885 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:36:45" (1/1) ... [2022-11-03 03:36:45,889 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:36:45" (1/1) ... [2022-11-03 03:36:45,891 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:36:45" (1/1) ... [2022-11-03 03:36:45,893 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:36:45" (1/1) ... [2022-11-03 03:36:45,897 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:36:45,898 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:36:45,898 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:36:45,898 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:36:45,899 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:36:45" (1/1) ... [2022-11-03 03:36:45,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:36:45,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:36:45,941 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:36:45,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:36:45,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:36:45,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 03:36:45,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-03 03:36:45,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-03 03:36:45,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:36:45,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:36:45,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:36:45,984 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 03:36:45,984 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 03:36:45,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:36:45,984 INFO L130 BoogieDeclarations]: Found specification of procedure assert_all_bytes_are [2022-11-03 03:36:45,984 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_all_bytes_are [2022-11-03 03:36:45,984 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-03 03:36:45,985 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-03 03:36:45,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 03:36:45,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:36:46,191 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:36:46,193 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:36:46,494 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:36:46,573 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:36:46,574 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 03:36:46,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:36:46 BoogieIcfgContainer [2022-11-03 03:36:46,576 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:36:46,584 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:36:46,584 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:36:46,589 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:36:46,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:36:43" (1/3) ... [2022-11-03 03:36:46,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@388bc5da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:36:46, skipping insertion in model container [2022-11-03 03:36:46,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:36:45" (2/3) ... [2022-11-03 03:36:46,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@388bc5da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:36:46, skipping insertion in model container [2022-11-03 03:36:46,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:36:46" (3/3) ... [2022-11-03 03:36:46,592 INFO L112 eAbstractionObserver]: Analyzing ICFG memset_override_0_harness.i [2022-11-03 03:36:46,611 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:36:46,612 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:36:46,679 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:36:46,685 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;@4b8ab470, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:36:46,685 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:36:46,689 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 28 states have internal predecessors, (34), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 03:36:46,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-03 03:36:46,698 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:36:46,699 INFO L195 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:36:46,699 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:36:46,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:36:46,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1342933705, now seen corresponding path program 1 times [2022-11-03 03:36:46,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:36:46,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647422454] [2022-11-03 03:36:46,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:36:46,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:36:47,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:36:47,932 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 03:36:47,933 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:36:47,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647422454] [2022-11-03 03:36:47,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647422454] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:36:47,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800444716] [2022-11-03 03:36:47,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:36:47,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:36:47,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:36:47,937 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:36:47,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 03:36:48,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:36:48,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 03:36:48,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:36:48,455 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 03:36:48,458 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:36:48,851 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 03:36:48,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [800444716] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:36:48,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1218088867] [2022-11-03 03:36:48,888 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2022-11-03 03:36:48,888 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:36:48,891 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:36:48,898 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:36:48,899 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:36:48,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:48,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,088 INFO L356 Elim1Store]: treesize reduction 83, result has 33.6 percent of original size [2022-11-03 03:36:49,090 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 30 treesize of output 64 [2022-11-03 03:36:49,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:49,286 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 03:36:49,286 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 49 treesize of output 85 [2022-11-03 03:36:51,089 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 139 for LOIs [2022-11-03 03:36:51,206 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 8 for LOIs [2022-11-03 03:36:51,208 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:36:54,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1218088867] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:36:54,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 03:36:54,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [7, 7, 8] total 23 [2022-11-03 03:36:54,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479581746] [2022-11-03 03:36:54,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:36:54,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-03 03:36:54,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:36:54,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-03 03:36:54,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=403, Unknown=0, NotChecked=0, Total=506 [2022-11-03 03:36:54,968 INFO L87 Difference]: Start difference. First operand has 48 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 28 states have internal predecessors, (34), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 13 states, 9 states have (on average 1.0) internal successors, (9), 8 states have internal predecessors, (9), 5 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-03 03:36:55,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:36:55,202 INFO L93 Difference]: Finished difference Result 93 states and 125 transitions. [2022-11-03 03:36:55,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-03 03:36:55,204 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 9 states have (on average 1.0) internal successors, (9), 8 states have internal predecessors, (9), 5 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 24 [2022-11-03 03:36:55,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:36:55,215 INFO L225 Difference]: With dead ends: 93 [2022-11-03 03:36:55,216 INFO L226 Difference]: Without dead ends: 52 [2022-11-03 03:36:55,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 48 SyntacticMatches, 8 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=103, Invalid=403, Unknown=0, NotChecked=0, Total=506 [2022-11-03 03:36:55,222 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 6 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 76 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:36:55,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 237 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 58 Invalid, 0 Unknown, 76 Unchecked, 0.2s Time] [2022-11-03 03:36:55,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-03 03:36:55,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-11-03 03:36:55,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 31 states have internal predecessors, (34), 17 states have call successors, (17), 6 states have call predecessors, (17), 5 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 03:36:55,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 66 transitions. [2022-11-03 03:36:55,274 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 66 transitions. Word has length 24 [2022-11-03 03:36:55,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:36:55,274 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 66 transitions. [2022-11-03 03:36:55,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 9 states have (on average 1.0) internal successors, (9), 8 states have internal predecessors, (9), 5 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-03 03:36:55,275 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 66 transitions. [2022-11-03 03:36:55,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-03 03:36:55,276 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:36:55,276 INFO L195 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:36:55,298 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-03 03:36:55,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-03 03:36:55,482 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:36:55,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:36:55,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1152670264, now seen corresponding path program 1 times [2022-11-03 03:36:55,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:36:55,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047416167] [2022-11-03 03:36:55,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:36:55,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:36:55,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:36:55,600 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 03:36:55,600 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:36:55,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047416167] [2022-11-03 03:36:55,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047416167] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:36:55,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:36:55,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:36:55,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698700590] [2022-11-03 03:36:55,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:36:55,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:36:55,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:36:55,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:36:55,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:36:55,603 INFO L87 Difference]: Start difference. First operand 52 states and 66 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-03 03:36:55,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:36:55,655 INFO L93 Difference]: Finished difference Result 87 states and 110 transitions. [2022-11-03 03:36:55,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:36:55,655 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 25 [2022-11-03 03:36:55,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:36:55,659 INFO L225 Difference]: With dead ends: 87 [2022-11-03 03:36:55,659 INFO L226 Difference]: Without dead ends: 53 [2022-11-03 03:36:55,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:36:55,662 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:36:55,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 94 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 03:36:55,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-11-03 03:36:55,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-11-03 03:36:55,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 30 states have (on average 1.1666666666666667) internal successors, (35), 32 states have internal predecessors, (35), 17 states have call successors, (17), 6 states have call predecessors, (17), 5 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 03:36:55,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 67 transitions. [2022-11-03 03:36:55,701 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 67 transitions. Word has length 25 [2022-11-03 03:36:55,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:36:55,701 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 67 transitions. [2022-11-03 03:36:55,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-03 03:36:55,702 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 67 transitions. [2022-11-03 03:36:55,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-03 03:36:55,703 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:36:55,704 INFO L195 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:36:55,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:36:55,704 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:36:55,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:36:55,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1319363776, now seen corresponding path program 1 times [2022-11-03 03:36:55,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:36:55,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513711195] [2022-11-03 03:36:55,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:36:55,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:36:55,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:36:56,177 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-03 03:36:56,177 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:36:56,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513711195] [2022-11-03 03:36:56,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513711195] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:36:56,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192067792] [2022-11-03 03:36:56,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:36:56,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:36:56,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:36:56,179 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:36:56,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 03:36:56,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:36:56,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-03 03:36:56,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:36:56,579 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-03 03:36:56,580 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:36:56,824 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-03 03:36:56,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1192067792] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:36:56,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1540379530] [2022-11-03 03:36:56,829 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2022-11-03 03:36:56,829 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:36:56,832 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:36:56,836 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:36:56,836 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:36:56,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:56,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:56,951 INFO L356 Elim1Store]: treesize reduction 83, result has 33.6 percent of original size [2022-11-03 03:36:56,952 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 30 treesize of output 64 [2022-11-03 03:36:56,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:56,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:57,081 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 03:36:57,081 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 49 treesize of output 85 [2022-11-03 03:36:57,865 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 1 [2022-11-03 03:36:57,891 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 1 [2022-11-03 03:36:57,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:57,915 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 62 [2022-11-03 03:36:57,942 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 1 [2022-11-03 03:36:58,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:36:58,268 INFO L356 Elim1Store]: treesize reduction 224, result has 6.3 percent of original size [2022-11-03 03:36:58,269 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 629 treesize of output 626 [2022-11-03 03:36:58,374 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 1 [2022-11-03 03:36:58,404 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 1 [2022-11-03 03:36:58,439 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 1 [2022-11-03 03:36:58,526 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 1 [2022-11-03 03:36:58,536 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 41 [2022-11-03 03:36:58,544 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 1 [2022-11-03 03:36:58,554 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 1 [2022-11-03 03:36:58,874 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 23 for LOIs [2022-11-03 03:36:58,888 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 8 for LOIs [2022-11-03 03:36:58,889 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:37:01,673 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '807#(and (= (mod __VERIFIER_assert_~cond 256) 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= |#NULL.offset| 0) (exists ((|v_ULTIMATE.start_memset_override_0_impl_~c#1_BEFORE_CALL_13| Int)) (and (<= |v_ULTIMATE.start_memset_override_0_impl_~c#1_BEFORE_CALL_13| 2147483647) (<= 0 (+ |v_ULTIMATE.start_memset_override_0_impl_~c#1_BEFORE_CALL_13| 2147483648)) (= (ite (= (ite (= |v_ULTIMATE.start_memset_override_0_impl_~c#1_BEFORE_CALL_13| 0) 1 0) 0) 0 1) |__VERIFIER_assert_#in~cond|))) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-03 03:37:01,674 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 03:37:01,674 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 03:37:01,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10, 7] total 14 [2022-11-03 03:37:01,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318518392] [2022-11-03 03:37:01,674 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 03:37:01,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-03 03:37:01,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:37:01,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-03 03:37:01,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=647, Unknown=0, NotChecked=0, Total=756 [2022-11-03 03:37:01,676 INFO L87 Difference]: Start difference. First operand 53 states and 67 transitions. Second operand has 14 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 12 states have internal predecessors, (20), 6 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 6 states have call successors, (9) [2022-11-03 03:37:01,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:37:01,968 INFO L93 Difference]: Finished difference Result 60 states and 73 transitions. [2022-11-03 03:37:01,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 03:37:01,969 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 12 states have internal predecessors, (20), 6 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 6 states have call successors, (9) Word has length 26 [2022-11-03 03:37:01,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:37:01,970 INFO L225 Difference]: With dead ends: 60 [2022-11-03 03:37:01,971 INFO L226 Difference]: Without dead ends: 58 [2022-11-03 03:37:01,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 50 SyntacticMatches, 7 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=131, Invalid=799, Unknown=0, NotChecked=0, Total=930 [2022-11-03 03:37:01,972 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 66 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:37:01,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 273 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 03:37:01,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-11-03 03:37:01,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 52. [2022-11-03 03:37:01,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 30 states have (on average 1.1666666666666667) internal successors, (35), 32 states have internal predecessors, (35), 16 states have call successors, (16), 6 states have call predecessors, (16), 5 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-03 03:37:01,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 65 transitions. [2022-11-03 03:37:01,991 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 65 transitions. Word has length 26 [2022-11-03 03:37:01,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:37:01,991 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 65 transitions. [2022-11-03 03:37:01,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 12 states have internal predecessors, (20), 6 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 6 states have call successors, (9) [2022-11-03 03:37:01,992 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 65 transitions. [2022-11-03 03:37:01,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-03 03:37:01,992 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:37:01,993 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:37:02,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 03:37:02,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:37:02,216 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:37:02,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:37:02,216 INFO L85 PathProgramCache]: Analyzing trace with hash -16112764, now seen corresponding path program 1 times [2022-11-03 03:37:02,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:37:02,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329501067] [2022-11-03 03:37:02,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:37:02,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:37:02,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:37:02,686 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 03:37:02,686 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:37:02,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329501067] [2022-11-03 03:37:02,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329501067] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:37:02,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:37:02,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 03:37:02,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242498978] [2022-11-03 03:37:02,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:37:02,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 03:37:02,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:37:02,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 03:37:02,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-03 03:37:02,688 INFO L87 Difference]: Start difference. First operand 52 states and 65 transitions. Second operand has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-03 03:37:02,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:37:02,957 INFO L93 Difference]: Finished difference Result 73 states and 93 transitions. [2022-11-03 03:37:02,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 03:37:02,958 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 30 [2022-11-03 03:37:02,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:37:02,959 INFO L225 Difference]: With dead ends: 73 [2022-11-03 03:37:02,959 INFO L226 Difference]: Without dead ends: 71 [2022-11-03 03:37:02,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-11-03 03:37:02,960 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 51 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:37:02,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 347 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 03:37:02,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-11-03 03:37:02,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 59. [2022-11-03 03:37:02,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 34 states have (on average 1.1470588235294117) internal successors, (39), 36 states have internal predecessors, (39), 18 states have call successors, (18), 7 states have call predecessors, (18), 6 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-03 03:37:02,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 73 transitions. [2022-11-03 03:37:02,980 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 73 transitions. Word has length 30 [2022-11-03 03:37:02,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:37:02,980 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 73 transitions. [2022-11-03 03:37:02,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-03 03:37:02,981 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 73 transitions. [2022-11-03 03:37:02,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 03:37:02,982 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:37:02,983 INFO L195 NwaCegarLoop]: trace histogram [5, 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] [2022-11-03 03:37:02,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 03:37:02,983 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:37:02,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:37:02,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1067521989, now seen corresponding path program 1 times [2022-11-03 03:37:02,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:37:02,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084376450] [2022-11-03 03:37:02,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:37:02,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:37:03,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 03:37:03,085 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 03:37:03,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 03:37:03,204 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-03 03:37:03,204 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 03:37:03,205 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 03:37:03,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 03:37:03,215 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-03 03:37:03,220 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 03:37:03,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 03:37:03 BoogieIcfgContainer [2022-11-03 03:37:03,284 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 03:37:03,284 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 03:37:03,284 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 03:37:03,285 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 03:37:03,285 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:36:46" (3/4) ... [2022-11-03 03:37:03,288 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-03 03:37:03,288 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 03:37:03,289 INFO L158 Benchmark]: Toolchain (without parser) took 19493.49ms. Allocated memory was 130.0MB in the beginning and 323.0MB in the end (delta: 192.9MB). Free memory was 90.9MB in the beginning and 196.3MB in the end (delta: -105.4MB). Peak memory consumption was 85.9MB. Max. memory is 16.1GB. [2022-11-03 03:37:03,289 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 92.3MB. Free memory was 62.5MB in the beginning and 62.4MB in the end (delta: 28.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 03:37:03,290 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1916.75ms. Allocated memory is still 130.0MB. Free memory was 90.7MB in the beginning and 73.8MB in the end (delta: 16.9MB). Peak memory consumption was 51.2MB. Max. memory is 16.1GB. [2022-11-03 03:37:03,290 INFO L158 Benchmark]: Boogie Procedure Inliner took 145.06ms. Allocated memory is still 130.0MB. Free memory was 73.8MB in the beginning and 69.5MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 03:37:03,290 INFO L158 Benchmark]: Boogie Preprocessor took 34.47ms. Allocated memory is still 130.0MB. Free memory was 69.5MB in the beginning and 67.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 03:37:03,290 INFO L158 Benchmark]: RCFGBuilder took 678.53ms. Allocated memory is still 130.0MB. Free memory was 66.8MB in the beginning and 86.2MB in the end (delta: -19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-03 03:37:03,291 INFO L158 Benchmark]: TraceAbstraction took 16699.64ms. Allocated memory was 130.0MB in the beginning and 323.0MB in the end (delta: 192.9MB). Free memory was 85.5MB in the beginning and 197.3MB in the end (delta: -111.8MB). Peak memory consumption was 80.8MB. Max. memory is 16.1GB. [2022-11-03 03:37:03,292 INFO L158 Benchmark]: Witness Printer took 4.18ms. Allocated memory is still 323.0MB. Free memory was 197.3MB in the beginning and 196.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 03:37:03,298 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 92.3MB. Free memory was 62.5MB in the beginning and 62.4MB in the end (delta: 28.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1916.75ms. Allocated memory is still 130.0MB. Free memory was 90.7MB in the beginning and 73.8MB in the end (delta: 16.9MB). Peak memory consumption was 51.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 145.06ms. Allocated memory is still 130.0MB. Free memory was 73.8MB in the beginning and 69.5MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.47ms. Allocated memory is still 130.0MB. Free memory was 69.5MB in the beginning and 67.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 678.53ms. Allocated memory is still 130.0MB. Free memory was 66.8MB in the beginning and 86.2MB in the end (delta: -19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 16699.64ms. Allocated memory was 130.0MB in the beginning and 323.0MB in the end (delta: 192.9MB). Free memory was 85.5MB in the beginning and 197.3MB in the end (delta: -111.8MB). Peak memory consumption was 80.8MB. Max. memory is 16.1GB. * Witness Printer took 4.18ms. Allocated memory is still 323.0MB. Free memory was 197.3MB in the beginning and 196.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 5885. Possible FailurePath: [L5919] CALL memset_override_0_harness() [L5906] short d1[160]; [L5907] short d2[160]; [L5908] int c = __VERIFIER_nondet_int(); [L5909] CALL assume_abort_if_not(c == 0) VAL [\old(cond)=1] [L211] COND FALSE !(!cond) [L5909] RET assume_abort_if_not(c == 0) VAL [c=0, d1={6:0}, d2={5:0}] [L5911] unsigned size = __VERIFIER_nondet_uint(); [L5912] CALL assume_abort_if_not((size & 0x7) == 0) VAL [\old(cond)=1] [L211] COND FALSE !(!cond) [L5912] RET assume_abort_if_not((size & 0x7) == 0) VAL [c=0, d1={6:0}, d2={5:0}, size=1] [L5913] CALL assume_abort_if_not(size < 160) VAL [\old(cond)=1] [L211] COND FALSE !(!cond) [L5913] RET assume_abort_if_not(size < 160) VAL [c=0, d1={6:0}, d2={5:0}, size=1] [L5914] CALL memset_impl(d1, c, size) [L5870] CALL assume_abort_if_not((((n) == 0) || (s))) VAL [\old(cond)=1] [L211] COND FALSE !(!cond) [L5870] RET assume_abort_if_not((((n) == 0) || (s))) VAL [c=0, n=1, s={6:0}] [L5871] COND TRUE n > 0 [L5872] char *sp = (char *)s; [L5873] unsigned long i = 0; VAL [c=0, i=0, n=1, s={6:0}, sp={6:0}] [L5873] COND TRUE i < n [L5874] sp[i] = c [L5873] i++ VAL [c=0, i=1, n=1, s={6:0}, sp={6:0}] [L5873] COND FALSE !(i < n) VAL [c=0, i=1, n=1, s={6:0}, sp={6:0}] [L5876] return s; [L5914] RET memset_impl(d1, c, size) [L5915] CALL memset_override_0_impl(d2, c, size) [L5881] CALL assume_abort_if_not((((n) == 0) || (dst))) VAL [\old(cond)=1] [L211] COND FALSE !(!cond) [L5881] RET assume_abort_if_not((((n) == 0) || (dst))) VAL [c=0, dst={5:0}, n=1] [L5883] CALL __VERIFIER_assert(c == 0) VAL [\old(cond)=1] [L223] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L5883] RET __VERIFIER_assert(c == 0) VAL [c=0, dst={5:0}, n=1] [L5884] size_t num_uint64s = n >> 3; [L5885] size_t rem = n & 0x7; VAL [c=0, dst={5:0}, n=1, num_uint64s=0, rem=1] [L5886] CALL __VERIFIER_assert(rem == 0) VAL [\old(cond)=0] [L223] COND TRUE !cond VAL [\old(cond)=0, cond=0] [L223] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 16.6s, OverallIterations: 5, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 133 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 123 mSDsluCounter, 951 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 76 IncrementalHoareTripleChecker+Unchecked, 846 mSDsCounter, 64 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 422 IncrementalHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 64 mSolverCounterUnsat, 203 mSDtfsCounter, 422 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 180 GetRequests, 104 SyntacticMatches, 15 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 355 ImplicationChecksByTransitivity, 6.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred in iteration=4, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 18 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 187 NumberOfCodeBlocks, 187 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 197 ConstructedInterpolants, 0 QuantifiedInterpolants, 787 SizeOfPredicates, 27 NumberOfNonLiveVariables, 312 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 141/165 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 2.3s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 20, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 9, TOOLS_POST_TIME: 0.7s, TOOLS_POST_CALL_APPLICATIONS: 16, TOOLS_POST_CALL_TIME: 0.7s, TOOLS_POST_RETURN_APPLICATIONS: 10, TOOLS_POST_RETURN_TIME: 0.4s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 35, TOOLS_QUANTIFIERELIM_TIME: 1.8s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.4s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 45, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 16, DOMAIN_JOIN_TIME: 0.3s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 0, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 20, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 0, LOOP_SUMMARIZER_CACHE_MISSES: 0, LOOP_SUMMARIZER_OVERALL_TIME: 0.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 0, CALL_SUMMARIZER_APPLICATIONS: 10, CALL_SUMMARIZER_CACHE_MISSES: 1, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 215, DAG_COMPRESSION_RETAINED_NODES: 55, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-03 03:37:03,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/memset_override_0_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI --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 5db0d3c47797ff0a215821e8d5fa38ab9190be93d125d3ffd24136b371560f6c --- 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-5e519f3 [2022-11-03 03:37:05,702 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:37:05,704 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:37:05,738 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:37:05,739 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:37:05,740 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:37:05,741 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:37:05,750 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:37:05,756 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:37:05,762 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:37:05,763 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:37:05,764 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:37:05,764 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:37:05,765 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:37:05,766 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:37:05,767 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:37:05,768 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:37:05,769 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:37:05,770 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:37:05,772 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:37:05,773 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:37:05,779 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:37:05,784 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:37:05,786 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:37:05,796 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:37:05,796 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:37:05,796 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:37:05,797 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:37:05,797 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:37:05,798 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:37:05,799 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:37:05,799 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:37:05,800 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:37:05,801 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:37:05,802 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:37:05,802 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:37:05,803 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:37:05,803 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:37:05,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:37:05,804 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:37:05,805 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:37:05,814 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-03 03:37:05,854 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:37:05,854 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:37:05,855 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:37:05,856 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:37:05,857 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:37:05,857 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:37:05,857 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:37:05,857 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:37:05,858 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:37:05,858 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:37:05,859 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:37:05,859 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:37:05,860 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:37:05,861 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:37:05,861 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:37:05,861 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:37:05,861 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:37:05,861 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-03 03:37:05,862 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-03 03:37:05,862 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-03 03:37:05,862 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:37:05,862 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:37:05,862 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:37:05,863 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:37:05,863 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-03 03:37:05,863 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:37:05,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:37:05,863 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:37:05,864 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:37:05,864 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:37:05,864 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-03 03:37:05,864 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-03 03:37:05,865 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:37:05,865 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:37:05,865 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-03 03:37:05,865 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5db0d3c47797ff0a215821e8d5fa38ab9190be93d125d3ffd24136b371560f6c [2022-11-03 03:37:06,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:37:06,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:37:06,304 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:37:06,305 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:37:06,306 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:37:06,308 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/aws-c-common/memset_override_0_harness.i [2022-11-03 03:37:06,392 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/data/73f5e7d14/c40d34a755e1458db0687a81e4d0b0b9/FLAG902f738c2 [2022-11-03 03:37:07,189 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:37:07,189 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i [2022-11-03 03:37:07,214 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/data/73f5e7d14/c40d34a755e1458db0687a81e4d0b0b9/FLAG902f738c2 [2022-11-03 03:37:07,328 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/data/73f5e7d14/c40d34a755e1458db0687a81e4d0b0b9 [2022-11-03 03:37:07,332 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:37:07,334 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:37:07,339 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:37:07,339 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:37:07,344 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:37:07,345 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:37:07" (1/1) ... [2022-11-03 03:37:07,346 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31de0603 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:37:07, skipping insertion in model container [2022-11-03 03:37:07,347 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:37:07" (1/1) ... [2022-11-03 03:37:07,354 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:37:07,457 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:37:07,739 WARN L230 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_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4491,4504] [2022-11-03 03:37:07,744 WARN L230 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_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4551,4564] [2022-11-03 03:37:08,501 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:37:08,502 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:37:08,503 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:37:08,503 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:37:08,505 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:37:08,519 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:37:08,520 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:37:08,522 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:37:08,522 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:37:08,524 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:37:08,525 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:37:08,526 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:37:08,526 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:37:08,771 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-03 03:37:08,779 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-03 03:37:08,781 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-03 03:37:08,782 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-03 03:37:08,784 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-03 03:37:08,785 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-03 03:37:08,786 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-03 03:37:08,787 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-03 03:37:08,788 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-03 03:37:08,788 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-03 03:37:08,887 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:37:08,914 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-03 03:37:08,969 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:37:08,973 WARN L230 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_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4491,4504] [2022-11-03 03:37:08,974 WARN L230 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_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4551,4564] [2022-11-03 03:37:09,013 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:37:09,013 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:37:09,013 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:37:09,014 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:37:09,015 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:37:09,022 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:37:09,023 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:37:09,024 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:37:09,025 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:37:09,026 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:37:09,026 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:37:09,027 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:37:09,027 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:37:09,045 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-03 03:37:09,045 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-03 03:37:09,046 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-03 03:37:09,047 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-03 03:37:09,048 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-03 03:37:09,048 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-03 03:37:09,049 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-03 03:37:09,049 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-03 03:37:09,050 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-03 03:37:09,050 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-03 03:37:09,090 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:37:09,094 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:37:09,106 WARN L230 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_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4491,4504] [2022-11-03 03:37:09,107 WARN L230 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_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4551,4564] [2022-11-03 03:37:09,142 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:37:09,143 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:37:09,143 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:37:09,143 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:37:09,144 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:37:09,150 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:37:09,151 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:37:09,152 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:37:09,152 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:37:09,153 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:37:09,154 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:37:09,154 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:37:09,155 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 03:37:09,172 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-03 03:37:09,173 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-03 03:37:09,173 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-03 03:37:09,174 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-03 03:37:09,175 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-03 03:37:09,175 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-03 03:37:09,176 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-03 03:37:09,176 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-03 03:37:09,177 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-03 03:37:09,177 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-03 03:37:09,192 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:37:09,444 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:37:09,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:37:09 WrapperNode [2022-11-03 03:37:09,445 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:37:09,446 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:37:09,446 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:37:09,446 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:37:09,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:37:09" (1/1) ... [2022-11-03 03:37:09,556 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:37:09" (1/1) ... [2022-11-03 03:37:09,584 INFO L138 Inliner]: procedures = 611, calls = 609, calls flagged for inlining = 38, calls inlined = 6, statements flattened = 85 [2022-11-03 03:37:09,584 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:37:09,586 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:37:09,586 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:37:09,586 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:37:09,595 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:37:09" (1/1) ... [2022-11-03 03:37:09,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:37:09" (1/1) ... [2022-11-03 03:37:09,603 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:37:09" (1/1) ... [2022-11-03 03:37:09,604 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:37:09" (1/1) ... [2022-11-03 03:37:09,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:37:09" (1/1) ... [2022-11-03 03:37:09,620 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:37:09" (1/1) ... [2022-11-03 03:37:09,624 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:37:09" (1/1) ... [2022-11-03 03:37:09,626 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:37:09" (1/1) ... [2022-11-03 03:37:09,631 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:37:09,632 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:37:09,632 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:37:09,632 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:37:09,633 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:37:09" (1/1) ... [2022-11-03 03:37:09,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:37:09,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:37:09,662 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:37:09,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:37:09,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:37:09,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-03 03:37:09,713 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-03 03:37:09,713 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-03 03:37:09,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:37:09,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:37:09,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:37:09,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-03 03:37:09,716 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 03:37:09,716 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 03:37:09,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:37:09,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-03 03:37:09,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-03 03:37:09,717 INFO L130 BoogieDeclarations]: Found specification of procedure assert_all_bytes_are [2022-11-03 03:37:09,717 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_all_bytes_are [2022-11-03 03:37:09,717 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-03 03:37:09,717 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-03 03:37:10,051 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:37:10,053 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:37:10,399 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:37:10,405 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:37:10,406 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 03:37:10,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:37:10 BoogieIcfgContainer [2022-11-03 03:37:10,419 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:37:10,421 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:37:10,421 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:37:10,424 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:37:10,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:37:07" (1/3) ... [2022-11-03 03:37:10,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6edc1a52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:37:10, skipping insertion in model container [2022-11-03 03:37:10,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:37:09" (2/3) ... [2022-11-03 03:37:10,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6edc1a52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:37:10, skipping insertion in model container [2022-11-03 03:37:10,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:37:10" (3/3) ... [2022-11-03 03:37:10,427 INFO L112 eAbstractionObserver]: Analyzing ICFG memset_override_0_harness.i [2022-11-03 03:37:10,445 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:37:10,445 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:37:10,494 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:37:10,500 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;@d451560, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:37:10,501 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:37:10,505 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 40 states have internal predecessors, (49), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 03:37:10,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-03 03:37:10,514 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:37:10,514 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:37:10,515 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:37:10,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:37:10,520 INFO L85 PathProgramCache]: Analyzing trace with hash 16590849, now seen corresponding path program 1 times [2022-11-03 03:37:10,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:37:10,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [802098787] [2022-11-03 03:37:10,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:37:10,534 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:37:10,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:37:10,540 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:37:10,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-03 03:37:10,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:37:10,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-03 03:37:10,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:37:10,785 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-03 03:37:10,786 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:37:10,786 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:37:10,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [802098787] [2022-11-03 03:37:10,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [802098787] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:37:10,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:37:10,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 03:37:10,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781178181] [2022-11-03 03:37:10,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:37:10,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 03:37:10,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:37:10,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 03:37:10,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 03:37:10,833 INFO L87 Difference]: Start difference. First operand has 60 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 40 states have internal predecessors, (49), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-03 03:37:10,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:37:10,876 INFO L93 Difference]: Finished difference Result 117 states and 167 transitions. [2022-11-03 03:37:10,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 03:37:10,880 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 36 [2022-11-03 03:37:10,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:37:10,888 INFO L225 Difference]: With dead ends: 117 [2022-11-03 03:37:10,889 INFO L226 Difference]: Without dead ends: 52 [2022-11-03 03:37:10,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 03:37:10,895 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:37:10,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 03:37:10,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-03 03:37:10,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-11-03 03:37:10,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 34 states have internal predecessors, (38), 15 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-03 03:37:10,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 66 transitions. [2022-11-03 03:37:10,940 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 66 transitions. Word has length 36 [2022-11-03 03:37:10,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:37:10,940 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 66 transitions. [2022-11-03 03:37:10,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-03 03:37:10,941 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 66 transitions. [2022-11-03 03:37:10,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-03 03:37:10,943 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:37:10,943 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:37:10,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-03 03:37:11,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:37:11,150 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:37:11,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:37:11,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1271235587, now seen corresponding path program 1 times [2022-11-03 03:37:11,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:37:11,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [392500907] [2022-11-03 03:37:11,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:37:11,153 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:37:11,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:37:11,154 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:37:11,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-03 03:37:11,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:37:11,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-03 03:37:11,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:37:11,464 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-03 03:37:11,464 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:37:11,619 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-03 03:37:11,619 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:37:11,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [392500907] [2022-11-03 03:37:11,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [392500907] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:37:11,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [352093979] [2022-11-03 03:37:11,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:37:11,620 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 03:37:11,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 03:37:11,626 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 03:37:11,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-03 03:37:11,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:37:11,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 03:37:11,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:37:11,953 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-03 03:37:11,953 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:37:12,085 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-03 03:37:12,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [352093979] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:37:12,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1049530349] [2022-11-03 03:37:12,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:37:12,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:37:12,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:37:12,090 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:37:12,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 03:37:12,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:37:12,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 03:37:12,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:37:12,295 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-03 03:37:12,295 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:37:12,479 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-03 03:37:12,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1049530349] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:37:12,479 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-03 03:37:12,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 8, 9] total 12 [2022-11-03 03:37:12,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252296901] [2022-11-03 03:37:12,481 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-03 03:37:12,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-03 03:37:12,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:37:12,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-03 03:37:12,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-11-03 03:37:12,483 INFO L87 Difference]: Start difference. First operand 52 states and 66 transitions. Second operand has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 9 states have internal predecessors, (21), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-03 03:37:12,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:37:12,745 INFO L93 Difference]: Finished difference Result 58 states and 71 transitions. [2022-11-03 03:37:12,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 03:37:12,746 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 9 states have internal predecessors, (21), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 36 [2022-11-03 03:37:12,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:37:12,748 INFO L225 Difference]: With dead ends: 58 [2022-11-03 03:37:12,748 INFO L226 Difference]: Without dead ends: 56 [2022-11-03 03:37:12,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2022-11-03 03:37:12,751 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 68 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:37:12,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 251 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 03:37:12,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-11-03 03:37:12,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2022-11-03 03:37:12,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 37 states have internal predecessors, (41), 15 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-03 03:37:12,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 69 transitions. [2022-11-03 03:37:12,767 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 69 transitions. Word has length 36 [2022-11-03 03:37:12,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:37:12,769 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 69 transitions. [2022-11-03 03:37:12,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 9 states have internal predecessors, (21), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-03 03:37:12,769 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 69 transitions. [2022-11-03 03:37:12,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-03 03:37:12,771 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:37:12,771 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2022-11-03 03:37:12,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-03 03:37:12,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2022-11-03 03:37:13,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-03 03:37:13,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:37:13,395 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:37:13,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:37:13,396 INFO L85 PathProgramCache]: Analyzing trace with hash 2010040638, now seen corresponding path program 1 times [2022-11-03 03:37:13,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:37:13,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1761633683] [2022-11-03 03:37:13,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:37:13,398 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:37:13,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:37:13,400 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:37:13,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-03 03:37:13,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:37:13,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 03:37:13,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:37:13,960 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-03 03:37:13,961 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:37:14,260 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-03 03:37:14,260 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:37:14,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1761633683] [2022-11-03 03:37:14,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1761633683] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:37:14,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [482423320] [2022-11-03 03:37:14,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:37:14,261 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 03:37:14,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 03:37:14,266 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 03:37:14,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-11-03 03:37:14,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:37:14,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 03:37:14,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:37:14,874 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-03 03:37:14,874 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:37:14,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [482423320] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:37:14,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 03:37:14,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9, 9] total 17 [2022-11-03 03:37:14,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636247269] [2022-11-03 03:37:14,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:37:14,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 03:37:14,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:37:14,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 03:37:14,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-11-03 03:37:14,876 INFO L87 Difference]: Start difference. First operand 56 states and 69 transitions. Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-03 03:37:15,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:37:15,180 INFO L93 Difference]: Finished difference Result 83 states and 104 transitions. [2022-11-03 03:37:15,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 03:37:15,181 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 42 [2022-11-03 03:37:15,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:37:15,183 INFO L225 Difference]: With dead ends: 83 [2022-11-03 03:37:15,183 INFO L226 Difference]: Without dead ends: 81 [2022-11-03 03:37:15,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 106 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2022-11-03 03:37:15,185 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 40 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 23 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:37:15,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 497 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 90 Invalid, 0 Unknown, 23 Unchecked, 0.2s Time] [2022-11-03 03:37:15,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-11-03 03:37:15,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 66. [2022-11-03 03:37:15,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 42 states have (on average 1.119047619047619) internal successors, (47), 44 states have internal predecessors, (47), 18 states have call successors, (18), 6 states have call predecessors, (18), 5 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-03 03:37:15,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 81 transitions. [2022-11-03 03:37:15,200 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 81 transitions. Word has length 42 [2022-11-03 03:37:15,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:37:15,201 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 81 transitions. [2022-11-03 03:37:15,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-03 03:37:15,202 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 81 transitions. [2022-11-03 03:37:15,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-03 03:37:15,203 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:37:15,203 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2022-11-03 03:37:15,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2022-11-03 03:37:15,420 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-11-03 03:37:15,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:37:15,611 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:37:15,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:37:15,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1722148702, now seen corresponding path program 1 times [2022-11-03 03:37:15,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:37:15,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1683718473] [2022-11-03 03:37:15,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:37:15,613 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:37:15,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:37:15,614 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:37:15,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-03 03:37:15,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:37:15,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 03:37:15,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:37:16,042 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-03 03:37:16,042 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:37:16,323 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-03 03:37:16,323 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:37:16,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1683718473] [2022-11-03 03:37:16,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1683718473] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:37:16,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1584286145] [2022-11-03 03:37:16,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:37:16,324 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 03:37:16,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 03:37:16,326 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 03:37:16,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2022-11-03 03:37:16,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:37:16,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 03:37:16,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:37:16,548 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-03 03:37:16,548 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:37:16,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1584286145] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:37:16,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 03:37:16,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9, 9] total 15 [2022-11-03 03:37:16,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891502070] [2022-11-03 03:37:16,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:37:16,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:37:16,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:37:16,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:37:16,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-11-03 03:37:16,551 INFO L87 Difference]: Start difference. First operand 66 states and 81 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 03:37:16,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:37:16,590 INFO L93 Difference]: Finished difference Result 113 states and 136 transitions. [2022-11-03 03:37:16,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:37:16,597 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 43 [2022-11-03 03:37:16,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:37:16,599 INFO L225 Difference]: With dead ends: 113 [2022-11-03 03:37:16,599 INFO L226 Difference]: Without dead ends: 68 [2022-11-03 03:37:16,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 112 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-11-03 03:37:16,601 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 1 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:37:16,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 123 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 03:37:16,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-11-03 03:37:16,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 67. [2022-11-03 03:37:16,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 43 states have (on average 1.1162790697674418) internal successors, (48), 45 states have internal predecessors, (48), 18 states have call successors, (18), 6 states have call predecessors, (18), 5 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-03 03:37:16,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 82 transitions. [2022-11-03 03:37:16,622 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 82 transitions. Word has length 43 [2022-11-03 03:37:16,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:37:16,626 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 82 transitions. [2022-11-03 03:37:16,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 03:37:16,626 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 82 transitions. [2022-11-03 03:37:16,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-03 03:37:16,632 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:37:16,633 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2022-11-03 03:37:16,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-03 03:37:16,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2022-11-03 03:37:17,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 03:37:17,047 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:37:17,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:37:17,048 INFO L85 PathProgramCache]: Analyzing trace with hash 982661572, now seen corresponding path program 1 times [2022-11-03 03:37:17,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:37:17,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1075641408] [2022-11-03 03:37:17,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:37:17,049 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:37:17,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:37:17,053 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:37:17,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-03 03:37:17,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:37:17,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 03:37:17,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:37:17,467 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-03 03:37:17,467 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:37:17,730 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-03 03:37:17,731 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:37:17,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1075641408] [2022-11-03 03:37:17,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1075641408] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:37:17,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1266492584] [2022-11-03 03:37:17,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:37:17,731 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 03:37:17,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 03:37:17,733 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 03:37:17,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2022-11-03 03:37:18,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:37:18,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-03 03:37:18,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:37:18,462 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-03 03:37:18,462 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:37:18,887 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-03 03:37:18,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1266492584] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:37:18,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996509507] [2022-11-03 03:37:18,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:37:18,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:37:18,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:37:18,890 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:37:18,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-03 03:37:19,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:37:19,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 03:37:19,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:37:19,316 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-03 03:37:19,316 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:37:19,731 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-03 03:37:19,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1996509507] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:37:19,731 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-03 03:37:19,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 8, 8, 9, 9] total 23 [2022-11-03 03:37:19,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264907096] [2022-11-03 03:37:19,732 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-03 03:37:19,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-03 03:37:19,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:37:19,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-03 03:37:19,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=439, Unknown=0, NotChecked=0, Total=506 [2022-11-03 03:37:19,735 INFO L87 Difference]: Start difference. First operand 67 states and 82 transitions. Second operand has 23 states, 21 states have (on average 2.5238095238095237) internal successors, (53), 20 states have internal predecessors, (53), 10 states have call successors, (18), 4 states have call predecessors, (18), 3 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2022-11-03 03:37:20,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:37:20,981 INFO L93 Difference]: Finished difference Result 135 states and 165 transitions. [2022-11-03 03:37:20,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-03 03:37:20,986 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 2.5238095238095237) internal successors, (53), 20 states have internal predecessors, (53), 10 states have call successors, (18), 4 states have call predecessors, (18), 3 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) Word has length 45 [2022-11-03 03:37:20,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:37:20,987 INFO L225 Difference]: With dead ends: 135 [2022-11-03 03:37:20,987 INFO L226 Difference]: Without dead ends: 90 [2022-11-03 03:37:20,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 242 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=138, Invalid=854, Unknown=0, NotChecked=0, Total=992 [2022-11-03 03:37:20,989 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 30 mSDsluCounter, 842 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 911 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 48 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 03:37:20,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 911 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 219 Invalid, 0 Unknown, 48 Unchecked, 0.5s Time] [2022-11-03 03:37:20,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-11-03 03:37:21,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 65. [2022-11-03 03:37:21,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 44 states have (on average 1.1136363636363635) internal successors, (49), 45 states have internal predecessors, (49), 15 states have call successors, (15), 6 states have call predecessors, (15), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-03 03:37:21,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 77 transitions. [2022-11-03 03:37:21,005 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 77 transitions. Word has length 45 [2022-11-03 03:37:21,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:37:21,005 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 77 transitions. [2022-11-03 03:37:21,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 2.5238095238095237) internal successors, (53), 20 states have internal predecessors, (53), 10 states have call successors, (18), 4 states have call predecessors, (18), 3 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2022-11-03 03:37:21,005 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 77 transitions. [2022-11-03 03:37:21,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-03 03:37:21,011 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:37:21,011 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:37:21,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-03 03:37:21,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-03 03:37:21,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2022-11-03 03:37:21,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 03:37:21,626 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:37:21,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:37:21,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1110629482, now seen corresponding path program 1 times [2022-11-03 03:37:21,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:37:21,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1648812685] [2022-11-03 03:37:21,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:37:21,628 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:37:21,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:37:21,629 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:37:21,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-03 03:37:21,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:37:21,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 03:37:21,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:37:21,922 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-11-03 03:37:21,922 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:37:21,922 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:37:21,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1648812685] [2022-11-03 03:37:21,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1648812685] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:37:21,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:37:21,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 03:37:21,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99175391] [2022-11-03 03:37:21,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:37:21,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:37:21,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:37:21,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:37:21,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:37:21,924 INFO L87 Difference]: Start difference. First operand 65 states and 77 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-03 03:37:22,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:37:22,054 INFO L93 Difference]: Finished difference Result 71 states and 82 transitions. [2022-11-03 03:37:22,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 03:37:22,055 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 51 [2022-11-03 03:37:22,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:37:22,056 INFO L225 Difference]: With dead ends: 71 [2022-11-03 03:37:22,056 INFO L226 Difference]: Without dead ends: 69 [2022-11-03 03:37:22,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 03:37:22,057 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 24 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:37:22,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 249 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:37:22,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-03 03:37:22,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2022-11-03 03:37:22,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 47 states have (on average 1.1063829787234043) internal successors, (52), 48 states have internal predecessors, (52), 15 states have call successors, (15), 7 states have call predecessors, (15), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-03 03:37:22,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 80 transitions. [2022-11-03 03:37:22,071 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 80 transitions. Word has length 51 [2022-11-03 03:37:22,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:37:22,072 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 80 transitions. [2022-11-03 03:37:22,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-03 03:37:22,072 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 80 transitions. [2022-11-03 03:37:22,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-03 03:37:22,073 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:37:22,074 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 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] [2022-11-03 03:37:22,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-03 03:37:22,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:37:22,296 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:37:22,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:37:22,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1132287315, now seen corresponding path program 1 times [2022-11-03 03:37:22,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:37:22,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1266221766] [2022-11-03 03:37:22,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:37:22,297 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:37:22,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:37:22,298 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:37:22,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-03 03:37:22,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:37:22,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 03:37:22,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:37:22,663 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 32 proven. 12 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-03 03:37:22,663 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:37:22,806 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 03:37:22,806 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:37:22,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1266221766] [2022-11-03 03:37:22,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1266221766] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-03 03:37:22,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 03:37:22,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2022-11-03 03:37:22,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738200335] [2022-11-03 03:37:22,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:37:22,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:37:22,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:37:22,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:37:22,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-03 03:37:22,808 INFO L87 Difference]: Start difference. First operand 69 states and 80 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 5 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-03 03:37:22,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:37:22,951 INFO L93 Difference]: Finished difference Result 112 states and 131 transitions. [2022-11-03 03:37:22,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 03:37:22,952 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 5 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 68 [2022-11-03 03:37:22,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:37:22,953 INFO L225 Difference]: With dead ends: 112 [2022-11-03 03:37:22,954 INFO L226 Difference]: Without dead ends: 84 [2022-11-03 03:37:22,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-11-03 03:37:22,955 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 29 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:37:22,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 224 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:37:22,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-11-03 03:37:22,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 82. [2022-11-03 03:37:22,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 56 states have (on average 1.1071428571428572) internal successors, (62), 57 states have internal predecessors, (62), 19 states have call successors, (19), 7 states have call predecessors, (19), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2022-11-03 03:37:22,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 98 transitions. [2022-11-03 03:37:22,973 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 98 transitions. Word has length 68 [2022-11-03 03:37:22,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:37:22,973 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 98 transitions. [2022-11-03 03:37:22,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 5 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-03 03:37:22,974 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 98 transitions. [2022-11-03 03:37:22,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-03 03:37:22,975 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:37:22,975 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:37:22,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-03 03:37:23,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:37:23,196 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:37:23,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:37:23,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1383518092, now seen corresponding path program 1 times [2022-11-03 03:37:23,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:37:23,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1571543390] [2022-11-03 03:37:23,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:37:23,197 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:37:23,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:37:23,198 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:37:23,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-03 03:37:23,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:37:23,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 03:37:23,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:37:23,635 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 32 proven. 12 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-03 03:37:23,635 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:37:23,840 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 03:37:23,841 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:37:23,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1571543390] [2022-11-03 03:37:23,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1571543390] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-03 03:37:23,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 03:37:23,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 13 [2022-11-03 03:37:23,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453253964] [2022-11-03 03:37:23,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:37:23,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:37:23,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:37:23,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:37:23,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-03 03:37:23,843 INFO L87 Difference]: Start difference. First operand 82 states and 98 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 4 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2022-11-03 03:37:24,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:37:24,013 INFO L93 Difference]: Finished difference Result 104 states and 119 transitions. [2022-11-03 03:37:24,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 03:37:24,014 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 4 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 72 [2022-11-03 03:37:24,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:37:24,015 INFO L225 Difference]: With dead ends: 104 [2022-11-03 03:37:24,015 INFO L226 Difference]: Without dead ends: 69 [2022-11-03 03:37:24,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-03 03:37:24,016 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 28 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:37:24,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 250 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:37:24,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-03 03:37:24,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2022-11-03 03:37:24,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 47 states have (on average 1.0851063829787233) internal successors, (51), 48 states have internal predecessors, (51), 15 states have call successors, (15), 7 states have call predecessors, (15), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-03 03:37:24,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 79 transitions. [2022-11-03 03:37:24,030 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 79 transitions. Word has length 72 [2022-11-03 03:37:24,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:37:24,030 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 79 transitions. [2022-11-03 03:37:24,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 4 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2022-11-03 03:37:24,031 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 79 transitions. [2022-11-03 03:37:24,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-03 03:37:24,032 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:37:24,032 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 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] [2022-11-03 03:37:24,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-03 03:37:24,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:37:24,247 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:37:24,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:37:24,247 INFO L85 PathProgramCache]: Analyzing trace with hash 511671837, now seen corresponding path program 1 times [2022-11-03 03:37:24,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:37:24,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [919985881] [2022-11-03 03:37:24,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:37:24,248 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:37:24,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:37:24,249 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:37:24,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-03 03:37:24,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:37:24,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 03:37:24,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:37:24,936 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 38 proven. 15 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-03 03:37:24,936 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:37:25,572 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 9 proven. 21 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-11-03 03:37:25,573 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:37:25,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [919985881] [2022-11-03 03:37:25,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [919985881] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:37:25,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1369859532] [2022-11-03 03:37:25,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:37:25,573 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 03:37:25,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 03:37:25,578 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 03:37:25,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2022-11-03 03:37:25,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:37:25,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 03:37:25,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:37:26,555 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 35 proven. 15 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-03 03:37:26,555 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:37:27,161 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 9 proven. 21 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-11-03 03:37:27,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1369859532] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:37:27,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [9906777] [2022-11-03 03:37:27,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:37:27,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:37:27,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:37:27,164 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:37:27,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-03 03:37:27,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:37:27,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-03 03:37:27,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:37:27,987 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 35 proven. 9 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-11-03 03:37:27,987 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:37:28,599 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-03 03:37:28,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [9906777] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:37:28,600 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-03 03:37:28,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 11, 11, 10, 10] total 39 [2022-11-03 03:37:28,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474797119] [2022-11-03 03:37:28,600 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-03 03:37:28,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-11-03 03:37:28,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:37:28,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-11-03 03:37:28,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=1280, Unknown=0, NotChecked=0, Total=1482 [2022-11-03 03:37:28,603 INFO L87 Difference]: Start difference. First operand 69 states and 79 transitions. Second operand has 39 states, 39 states have (on average 2.2564102564102564) internal successors, (88), 34 states have internal predecessors, (88), 16 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (34), 17 states have call predecessors, (34), 16 states have call successors, (34) [2022-11-03 03:37:30,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:37:30,611 INFO L93 Difference]: Finished difference Result 131 states and 151 transitions. [2022-11-03 03:37:30,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-03 03:37:30,613 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 2.2564102564102564) internal successors, (88), 34 states have internal predecessors, (88), 16 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (34), 17 states have call predecessors, (34), 16 states have call successors, (34) Word has length 75 [2022-11-03 03:37:30,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:37:30,614 INFO L225 Difference]: With dead ends: 131 [2022-11-03 03:37:30,614 INFO L226 Difference]: Without dead ends: 78 [2022-11-03 03:37:30,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 411 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 800 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=438, Invalid=2318, Unknown=0, NotChecked=0, Total=2756 [2022-11-03 03:37:30,616 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 13 mSDsluCounter, 741 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 51 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 03:37:30,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 791 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 153 Invalid, 0 Unknown, 51 Unchecked, 0.4s Time] [2022-11-03 03:37:30,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-11-03 03:37:30,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2022-11-03 03:37:30,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 56 states have (on average 1.0714285714285714) internal successors, (60), 57 states have internal predecessors, (60), 15 states have call successors, (15), 7 states have call predecessors, (15), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-03 03:37:30,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 88 transitions. [2022-11-03 03:37:30,633 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 88 transitions. Word has length 75 [2022-11-03 03:37:30,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:37:30,634 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 88 transitions. [2022-11-03 03:37:30,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 2.2564102564102564) internal successors, (88), 34 states have internal predecessors, (88), 16 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (34), 17 states have call predecessors, (34), 16 states have call successors, (34) [2022-11-03 03:37:30,635 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 88 transitions. [2022-11-03 03:37:30,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-03 03:37:30,641 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:37:30,642 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:37:30,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-03 03:37:30,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-03 03:37:31,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2022-11-03 03:37:31,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 03:37:31,267 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:37:31,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:37:31,268 INFO L85 PathProgramCache]: Analyzing trace with hash -2075883641, now seen corresponding path program 1 times [2022-11-03 03:37:31,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:37:31,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [258358343] [2022-11-03 03:37:31,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:37:31,269 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:37:31,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:37:31,269 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:37:31,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-03 03:37:31,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:37:31,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 03:37:31,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:37:32,446 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 38 proven. 55 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-03 03:37:32,446 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:37:33,761 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 9 proven. 61 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-11-03 03:37:33,761 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:37:33,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [258358343] [2022-11-03 03:37:33,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [258358343] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:37:33,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1133391910] [2022-11-03 03:37:33,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:37:33,762 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 03:37:33,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 03:37:33,766 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 03:37:33,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2022-11-03 03:37:34,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:37:34,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-03 03:37:34,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:37:35,216 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 33 proven. 49 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-11-03 03:37:35,216 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:37:37,844 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 7 proven. 49 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 03:37:37,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1133391910] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:37:37,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [968241529] [2022-11-03 03:37:37,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:37:37,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:37:37,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:37:37,853 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:37:37,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-11-03 03:37:38,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:37:38,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-03 03:37:38,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:37:39,343 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 38 proven. 55 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-03 03:37:39,343 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:37:45,122 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 6 proven. 50 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 03:37:45,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [968241529] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:37:45,123 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-03 03:37:45,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 14, 14, 16, 18] total 75 [2022-11-03 03:37:45,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158090601] [2022-11-03 03:37:45,124 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-03 03:37:45,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2022-11-03 03:37:45,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:37:45,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2022-11-03 03:37:45,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=711, Invalid=4839, Unknown=0, NotChecked=0, Total=5550 [2022-11-03 03:37:45,127 INFO L87 Difference]: Start difference. First operand 78 states and 88 transitions. Second operand has 75 states, 74 states have (on average 2.108108108108108) internal successors, (156), 72 states have internal predecessors, (156), 16 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (34), 17 states have call predecessors, (34), 16 states have call successors, (34) [2022-11-03 03:38:11,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:38:11,763 INFO L93 Difference]: Finished difference Result 196 states and 239 transitions. [2022-11-03 03:38:11,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-03 03:38:11,765 INFO L78 Accepts]: Start accepts. Automaton has has 75 states, 74 states have (on average 2.108108108108108) internal successors, (156), 72 states have internal predecessors, (156), 16 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (34), 17 states have call predecessors, (34), 16 states have call successors, (34) Word has length 85 [2022-11-03 03:38:11,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:38:11,767 INFO L225 Difference]: With dead ends: 196 [2022-11-03 03:38:11,767 INFO L226 Difference]: Without dead ends: 142 [2022-11-03 03:38:11,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 543 GetRequests, 436 SyntacticMatches, 4 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 3325 ImplicationChecksByTransitivity, 31.5s TimeCoverageRelationStatistics Valid=1510, Invalid=9410, Unknown=0, NotChecked=0, Total=10920 [2022-11-03 03:38:11,770 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 434 mSDsluCounter, 2097 mSDsCounter, 0 mSdLazyCounter, 1184 mSolverCounterSat, 276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 2182 SdHoareTripleChecker+Invalid, 1663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 276 IncrementalHoareTripleChecker+Valid, 1184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 203 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:38:11,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 2182 Invalid, 1663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [276 Valid, 1184 Invalid, 0 Unknown, 203 Unchecked, 6.2s Time] [2022-11-03 03:38:11,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-11-03 03:38:11,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 105. [2022-11-03 03:38:11,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 80 states have (on average 1.15) internal successors, (92), 81 states have internal predecessors, (92), 18 states have call successors, (18), 7 states have call predecessors, (18), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-03 03:38:11,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 126 transitions. [2022-11-03 03:38:11,801 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 126 transitions. Word has length 85 [2022-11-03 03:38:11,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:38:11,802 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 126 transitions. [2022-11-03 03:38:11,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 74 states have (on average 2.108108108108108) internal successors, (156), 72 states have internal predecessors, (156), 16 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (34), 17 states have call predecessors, (34), 16 states have call successors, (34) [2022-11-03 03:38:11,802 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 126 transitions. [2022-11-03 03:38:11,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-03 03:38:11,804 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:38:11,804 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:38:11,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-11-03 03:38:12,007 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2022-11-03 03:38:12,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-11-03 03:38:12,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:38:12,405 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:38:12,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:38:12,405 INFO L85 PathProgramCache]: Analyzing trace with hash 24387113, now seen corresponding path program 2 times [2022-11-03 03:38:12,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:38:12,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [323799069] [2022-11-03 03:38:12,406 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-03 03:38:12,406 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:38:12,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:38:12,407 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:38:12,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-11-03 03:38:13,120 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-03 03:38:13,120 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 03:38:13,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 94 conjunts are in the unsatisfiable core [2022-11-03 03:38:13,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:38:13,182 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-03 03:38:13,705 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-03 03:38:14,084 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2022-11-03 03:38:14,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:14,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:14,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:14,492 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 33 treesize of output 35 [2022-11-03 03:38:14,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:14,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:14,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:14,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:14,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:14,996 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 44 treesize of output 49 [2022-11-03 03:38:15,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:15,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:15,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:15,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:15,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:15,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:15,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:15,549 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 61 [2022-11-03 03:38:16,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:16,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:16,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:16,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:16,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:16,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:16,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:16,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:16,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:16,176 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 74 [2022-11-03 03:38:16,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:16,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:16,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:16,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:16,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:16,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:16,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:16,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:16,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:16,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:16,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:16,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:16,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:16,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:16,942 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 88 [2022-11-03 03:38:17,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:17,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:17,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:17,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:17,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:17,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:17,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:17,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:17,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:17,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:17,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:17,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:17,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:17,677 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 29 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 92 [2022-11-03 03:38:21,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:21,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:21,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:21,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:21,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:21,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:21,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:21,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:21,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:21,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:21,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:21,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:21,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:21,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:21,725 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:38:21,727 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:38:21,727 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:38:21,728 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:38:21,728 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:38:21,729 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:38:21,729 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:38:21,737 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 57 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 173 [2022-11-03 03:38:28,684 INFO L356 Elim1Store]: treesize reduction 122, result has 5.4 percent of original size [2022-11-03 03:38:28,685 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 18 select indices, 18 select index equivalence classes, 29 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 16 case distinctions, treesize of input 127 treesize of output 61 [2022-11-03 03:38:28,952 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 35 proven. 89 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-03 03:38:28,952 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:38:29,801 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:38:29,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [323799069] [2022-11-03 03:38:29,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [323799069] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:38:29,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1033742899] [2022-11-03 03:38:29,801 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-03 03:38:29,801 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 03:38:29,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 03:38:29,802 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 03:38:29,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2022-11-03 03:38:30,848 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-03 03:38:30,848 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 03:38:30,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 88 conjunts are in the unsatisfiable core [2022-11-03 03:38:30,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:38:30,993 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-03 03:38:32,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:32,330 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-11-03 03:38:32,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:32,967 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:38:32,984 INFO L356 Elim1Store]: treesize reduction 18, result has 28.0 percent of original size [2022-11-03 03:38:32,984 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 32 [2022-11-03 03:38:33,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:33,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:33,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:33,727 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:38:33,732 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:38:33,732 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 46 [2022-11-03 03:38:34,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:34,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:34,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:34,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:34,688 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:38:34,693 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:38:34,693 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 60 [2022-11-03 03:38:35,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:35,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:35,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:35,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:35,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:35,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:35,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:35,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:35,852 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:38:35,857 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:38:35,857 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 63 treesize of output 74 [2022-11-03 03:38:37,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:37,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:37,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:37,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:37,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:37,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:37,112 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:38:37,117 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:38:37,117 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 74 treesize of output 88 [2022-11-03 03:38:38,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:38,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:38,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:38,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:38,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:38,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:38,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:38,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:38,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:38,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:38,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:38,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:38,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:38,375 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:38:38,380 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:38:38,381 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 80 treesize of output 97 [2022-11-03 03:38:39,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:39,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:39,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:39,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:39,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:39,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:39,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:39,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:39,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:39,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:39,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:39,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:39,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:39,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:39,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:39,640 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:38:39,645 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:38:39,646 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 29 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 7 case distinctions, treesize of input 82 treesize of output 102 [2022-11-03 03:38:47,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:47,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:47,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:47,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:47,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:47,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:47,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:47,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:47,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:47,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:47,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:47,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:47,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:47,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:47,594 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:38:47,595 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:38:47,596 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:38:47,596 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:38:47,597 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:38:47,598 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:38:47,599 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:38:47,601 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:38:47,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:47,606 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:38:47,626 INFO L356 Elim1Store]: treesize reduction 26, result has 21.2 percent of original size [2022-11-03 03:38:47,626 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 57 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 9 case distinctions, treesize of input 132 treesize of output 183 [2022-11-03 03:38:58,114 INFO L356 Elim1Store]: treesize reduction 162, result has 4.1 percent of original size [2022-11-03 03:38:58,114 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 19 select indices, 19 select index equivalence classes, 29 disjoint index pairs (out of 171 index pairs), introduced 19 new quantified variables, introduced 34 case distinctions, treesize of input 134 treesize of output 64 [2022-11-03 03:38:58,131 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 41 proven. 83 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-03 03:38:58,131 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:38:58,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1033742899] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:38:58,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698900586] [2022-11-03 03:38:58,221 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-03 03:38:58,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:38:58,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:38:58,222 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:38:58,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-11-03 03:38:58,499 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-03 03:38:58,499 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 03:38:58,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 107 conjunts are in the unsatisfiable core [2022-11-03 03:38:58,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:38:58,539 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-03 03:39:00,785 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-03 03:39:01,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:01,678 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-03 03:39:03,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:03,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:03,018 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 36 [2022-11-03 03:39:04,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:04,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:04,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:04,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:04,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:04,327 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 43 treesize of output 48 [2022-11-03 03:39:05,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:05,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:05,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:05,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:05,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:05,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:05,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:05,668 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 61 [2022-11-03 03:39:07,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:07,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:07,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:07,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:07,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:07,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:07,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:07,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:07,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:07,075 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 74 [2022-11-03 03:39:08,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:08,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:08,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:08,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:08,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:08,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:08,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:08,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:08,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:08,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:08,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:08,743 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 87 [2022-11-03 03:39:10,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:10,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:10,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:10,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:10,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:10,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:10,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:10,558 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 30 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 92 [2022-11-03 03:39:19,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:19,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:19,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:19,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:19,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:19,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:19,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:39:19,855 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:39:19,856 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:39:19,857 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:39:19,858 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:39:19,858 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:39:19,859 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:39:19,860 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:39:19,863 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 58 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 150 treesize of output 198 [2022-11-03 03:39:31,975 INFO L356 Elim1Store]: treesize reduction 122, result has 5.4 percent of original size [2022-11-03 03:39:31,975 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 18 select indices, 18 select index equivalence classes, 30 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 16 case distinctions, treesize of input 127 treesize of output 61 [2022-11-03 03:39:31,991 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 32 proven. 83 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-03 03:39:31,991 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:39:32,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698900586] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:39:32,079 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 03:39:32,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 37, 40] total 102 [2022-11-03 03:39:32,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118006175] [2022-11-03 03:39:32,080 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 03:39:32,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2022-11-03 03:39:32,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:39:32,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2022-11-03 03:39:32,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=10791, Unknown=0, NotChecked=0, Total=11342 [2022-11-03 03:39:32,090 INFO L87 Difference]: Start difference. First operand 105 states and 126 transitions. Second operand has 102 states, 96 states have (on average 1.5625) internal successors, (150), 94 states have internal predecessors, (150), 19 states have call successors, (31), 8 states have call predecessors, (31), 11 states have return successors, (30), 20 states have call predecessors, (30), 18 states have call successors, (30) [2022-11-03 03:40:11,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:40:18,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:40:18,108 INFO L93 Difference]: Finished difference Result 222 states and 250 transitions. [2022-11-03 03:40:18,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-11-03 03:40:18,109 INFO L78 Accepts]: Start accepts. Automaton has has 102 states, 96 states have (on average 1.5625) internal successors, (150), 94 states have internal predecessors, (150), 19 states have call successors, (31), 8 states have call predecessors, (31), 11 states have return successors, (30), 20 states have call predecessors, (30), 18 states have call successors, (30) Word has length 87 [2022-11-03 03:40:18,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:40:18,114 INFO L225 Difference]: With dead ends: 222 [2022-11-03 03:40:18,115 INFO L226 Difference]: Without dead ends: 184 [2022-11-03 03:40:18,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 148 SyntacticMatches, 30 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9396 ImplicationChecksByTransitivity, 77.8s TimeCoverageRelationStatistics Valid=1504, Invalid=22058, Unknown=0, NotChecked=0, Total=23562 [2022-11-03 03:40:18,122 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 151 mSDsluCounter, 1246 mSDsCounter, 0 mSdLazyCounter, 2270 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 1301 SdHoareTripleChecker+Invalid, 2894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 2270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 417 IncrementalHoareTripleChecker+Unchecked, 26.6s IncrementalHoareTripleChecker+Time [2022-11-03 03:40:18,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 1301 Invalid, 2894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 2270 Invalid, 0 Unknown, 417 Unchecked, 26.6s Time] [2022-11-03 03:40:18,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2022-11-03 03:40:18,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 162. [2022-11-03 03:40:18,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 121 states have (on average 1.115702479338843) internal successors, (135), 123 states have internal predecessors, (135), 25 states have call successors, (25), 16 states have call predecessors, (25), 15 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2022-11-03 03:40:18,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 183 transitions. [2022-11-03 03:40:18,226 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 183 transitions. Word has length 87 [2022-11-03 03:40:18,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:40:18,227 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 183 transitions. [2022-11-03 03:40:18,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 96 states have (on average 1.5625) internal successors, (150), 94 states have internal predecessors, (150), 19 states have call successors, (31), 8 states have call predecessors, (31), 11 states have return successors, (30), 20 states have call predecessors, (30), 18 states have call successors, (30) [2022-11-03 03:40:18,228 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 183 transitions. [2022-11-03 03:40:18,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-03 03:40:18,229 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:40:18,229 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:40:18,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-11-03 03:40:18,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (23)] Forceful destruction successful, exit code 0 [2022-11-03 03:40:18,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-11-03 03:40:18,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:40:18,846 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:40:18,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:40:18,846 INFO L85 PathProgramCache]: Analyzing trace with hash 865156450, now seen corresponding path program 1 times [2022-11-03 03:40:18,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:40:18,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1262788518] [2022-11-03 03:40:18,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:40:18,847 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:40:18,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:40:18,848 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:40:18,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-11-03 03:40:19,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:40:19,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 03:40:19,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:40:19,605 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-11-03 03:40:19,605 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:40:19,605 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:40:19,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1262788518] [2022-11-03 03:40:19,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1262788518] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:40:19,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:40:19,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 03:40:19,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700638002] [2022-11-03 03:40:19,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:40:19,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:40:19,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:40:19,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:40:19,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:40:19,608 INFO L87 Difference]: Start difference. First operand 162 states and 183 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 5 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-03 03:40:19,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:40:19,877 INFO L93 Difference]: Finished difference Result 184 states and 204 transitions. [2022-11-03 03:40:19,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:40:19,878 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 5 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 91 [2022-11-03 03:40:19,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:40:19,879 INFO L225 Difference]: With dead ends: 184 [2022-11-03 03:40:19,879 INFO L226 Difference]: Without dead ends: 162 [2022-11-03 03:40:19,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-03 03:40:19,881 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 15 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 14 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:40:19,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 179 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 14 Unchecked, 0.1s Time] [2022-11-03 03:40:19,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-11-03 03:40:19,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2022-11-03 03:40:19,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 121 states have (on average 1.0991735537190082) internal successors, (133), 123 states have internal predecessors, (133), 25 states have call successors, (25), 16 states have call predecessors, (25), 15 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2022-11-03 03:40:19,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 181 transitions. [2022-11-03 03:40:19,966 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 181 transitions. Word has length 91 [2022-11-03 03:40:19,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:40:19,967 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 181 transitions. [2022-11-03 03:40:19,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 5 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-03 03:40:19,967 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 181 transitions. [2022-11-03 03:40:19,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-03 03:40:19,968 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:40:19,969 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 6, 6, 6, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:40:19,987 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2022-11-03 03:40:20,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:40:20,182 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:40:20,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:40:20,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1597024941, now seen corresponding path program 3 times [2022-11-03 03:40:20,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:40:20,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1234706034] [2022-11-03 03:40:20,183 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 03:40:20,183 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:40:20,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:40:20,184 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:40:20,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-11-03 03:40:21,145 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2022-11-03 03:40:21,145 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 03:40:21,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-03 03:40:21,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:40:22,000 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 41 proven. 87 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-03 03:40:22,000 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:40:26,261 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 12 proven. 85 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-03 03:40:26,261 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:40:26,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1234706034] [2022-11-03 03:40:26,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1234706034] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:40:26,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1533932634] [2022-11-03 03:40:26,262 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 03:40:26,262 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 03:40:26,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 03:40:26,263 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 03:40:26,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2022-11-03 03:40:28,320 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2022-11-03 03:40:28,321 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 03:40:28,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-03 03:40:28,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:40:30,174 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 35 proven. 81 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-11-03 03:40:30,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:40:38,295 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 9 proven. 88 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-03 03:40:38,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1533932634] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:40:38,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1706167211] [2022-11-03 03:40:38,296 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 03:40:38,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:40:38,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:40:38,297 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:40:38,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-11-03 03:42:33,951 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2022-11-03 03:42:33,952 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 03:42:33,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-03 03:42:33,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:42:34,396 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 41 proven. 87 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-03 03:42:34,396 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:42:35,557 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 9 proven. 88 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-11-03 03:42:35,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1706167211] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:42:35,557 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-03 03:42:35,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 24, 19, 24, 22, 24] total 77 [2022-11-03 03:42:35,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636788610] [2022-11-03 03:42:35,558 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-03 03:42:35,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2022-11-03 03:42:35,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:42:35,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2022-11-03 03:42:35,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=913, Invalid=4939, Unknown=0, NotChecked=0, Total=5852 [2022-11-03 03:42:35,562 INFO L87 Difference]: Start difference. First operand 162 states and 181 transitions. Second operand has 77 states, 73 states have (on average 2.0273972602739727) internal successors, (148), 74 states have internal predecessors, (148), 15 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (27), 14 states have call predecessors, (27), 15 states have call successors, (27) [2022-11-03 03:43:12,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:43:12,405 INFO L93 Difference]: Finished difference Result 260 states and 304 transitions. [2022-11-03 03:43:12,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-11-03 03:43:12,408 INFO L78 Accepts]: Start accepts. Automaton has has 77 states, 73 states have (on average 2.0273972602739727) internal successors, (148), 74 states have internal predecessors, (148), 15 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (27), 14 states have call predecessors, (27), 15 states have call successors, (27) Word has length 91 [2022-11-03 03:43:12,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:43:12,409 INFO L225 Difference]: With dead ends: 260 [2022-11-03 03:43:12,409 INFO L226 Difference]: Without dead ends: 194 [2022-11-03 03:43:12,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 578 GetRequests, 464 SyntacticMatches, 1 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3509 ImplicationChecksByTransitivity, 35.3s TimeCoverageRelationStatistics Valid=2577, Invalid=10533, Unknown=0, NotChecked=0, Total=13110 [2022-11-03 03:43:12,413 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 738 mSDsluCounter, 1222 mSDsCounter, 0 mSdLazyCounter, 2505 mSolverCounterSat, 506 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 738 SdHoareTripleChecker+Valid, 1269 SdHoareTripleChecker+Invalid, 3072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 506 IncrementalHoareTripleChecker+Valid, 2505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 61 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:43:12,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [738 Valid, 1269 Invalid, 3072 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [506 Valid, 2505 Invalid, 0 Unknown, 61 Unchecked, 14.0s Time] [2022-11-03 03:43:12,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2022-11-03 03:43:12,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 166. [2022-11-03 03:43:12,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 125 states have (on average 1.072) internal successors, (134), 128 states have internal predecessors, (134), 25 states have call successors, (25), 16 states have call predecessors, (25), 15 states have return successors, (23), 21 states have call predecessors, (23), 23 states have call successors, (23) [2022-11-03 03:43:12,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 182 transitions. [2022-11-03 03:43:12,493 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 182 transitions. Word has length 91 [2022-11-03 03:43:12,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:43:12,493 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 182 transitions. [2022-11-03 03:43:12,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 73 states have (on average 2.0273972602739727) internal successors, (148), 74 states have internal predecessors, (148), 15 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (27), 14 states have call predecessors, (27), 15 states have call successors, (27) [2022-11-03 03:43:12,494 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 182 transitions. [2022-11-03 03:43:12,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-03 03:43:12,495 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:43:12,496 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:43:12,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (27)] Forceful destruction successful, exit code 0 [2022-11-03 03:43:12,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (26)] Ended with exit code 0 [2022-11-03 03:43:12,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-11-03 03:43:13,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:43:13,097 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:43:13,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:43:13,097 INFO L85 PathProgramCache]: Analyzing trace with hash 609255285, now seen corresponding path program 1 times [2022-11-03 03:43:13,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:43:13,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1046809148] [2022-11-03 03:43:13,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:43:13,098 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:43:13,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:43:13,099 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:43:13,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2022-11-03 03:43:13,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:43:13,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 61 conjunts are in the unsatisfiable core [2022-11-03 03:43:13,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:43:15,516 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:43:15,517 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:43:15,517 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:43:15,518 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:43:15,518 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:43:15,519 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:43:15,519 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:43:15,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:15,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:15,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:15,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:15,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:15,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:15,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:15,537 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 79 [2022-11-03 03:43:22,652 INFO L356 Elim1Store]: treesize reduction 62, result has 4.6 percent of original size [2022-11-03 03:43:22,652 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 28 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 64 treesize of output 31 [2022-11-03 03:43:22,886 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 54 proven. 96 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-03 03:43:22,887 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:43:23,589 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:43:23,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1046809148] [2022-11-03 03:43:23,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1046809148] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:43:23,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [906738804] [2022-11-03 03:43:23,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:43:23,590 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 03:43:23,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 03:43:23,591 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 03:43:23,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2022-11-03 03:43:25,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:43:25,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 56 conjunts are in the unsatisfiable core [2022-11-03 03:43:25,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:43:27,083 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:43:27,084 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:43:27,084 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:43:27,085 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:43:27,085 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:43:27,086 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:43:27,086 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:43:27,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:27,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:27,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:27,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:27,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:27,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:27,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:27,098 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 79 [2022-11-03 03:43:32,034 INFO L356 Elim1Store]: treesize reduction 62, result has 4.6 percent of original size [2022-11-03 03:43:32,034 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 28 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 64 treesize of output 31 [2022-11-03 03:43:32,051 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 60 proven. 84 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-03 03:43:32,051 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:43:32,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [906738804] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:43:32,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1382863309] [2022-11-03 03:43:32,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:43:32,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:43:32,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:43:32,115 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:43:32,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2022-11-03 03:43:32,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:43:32,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 58 conjunts are in the unsatisfiable core [2022-11-03 03:43:32,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:43:35,236 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:43:35,237 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:43:35,237 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:43:35,238 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:43:35,238 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:43:35,239 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:43:35,239 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:43:35,242 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 104 [2022-11-03 03:43:41,968 INFO L356 Elim1Store]: treesize reduction 62, result has 4.6 percent of original size [2022-11-03 03:43:41,968 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 28 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 64 treesize of output 31 [2022-11-03 03:43:41,982 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 51 proven. 51 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2022-11-03 03:43:41,983 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:43:42,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1382863309] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:43:42,050 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 03:43:42,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 30, 28] total 56 [2022-11-03 03:43:42,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571202950] [2022-11-03 03:43:42,051 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 03:43:42,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-11-03 03:43:42,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:43:42,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-11-03 03:43:42,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=3464, Unknown=0, NotChecked=0, Total=3660 [2022-11-03 03:43:42,053 INFO L87 Difference]: Start difference. First operand 166 states and 182 transitions. Second operand has 56 states, 50 states have (on average 1.98) internal successors, (99), 48 states have internal predecessors, (99), 15 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (23), 15 states have call predecessors, (23), 14 states have call successors, (23) [2022-11-03 03:43:56,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:44:12,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:44:12,861 INFO L93 Difference]: Finished difference Result 199 states and 215 transitions. [2022-11-03 03:44:12,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-03 03:44:12,862 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 50 states have (on average 1.98) internal successors, (99), 48 states have internal predecessors, (99), 15 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (23), 15 states have call predecessors, (23), 14 states have call successors, (23) Word has length 108 [2022-11-03 03:44:12,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:44:12,863 INFO L225 Difference]: With dead ends: 199 [2022-11-03 03:44:12,864 INFO L226 Difference]: Without dead ends: 117 [2022-11-03 03:44:12,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 246 SyntacticMatches, 36 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2216 ImplicationChecksByTransitivity, 24.4s TimeCoverageRelationStatistics Valid=856, Invalid=7334, Unknown=0, NotChecked=0, Total=8190 [2022-11-03 03:44:12,866 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 486 mSDsluCounter, 1148 mSDsCounter, 0 mSdLazyCounter, 1624 mSolverCounterSat, 268 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 1203 SdHoareTripleChecker+Invalid, 2170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 268 IncrementalHoareTripleChecker+Valid, 1624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 278 IncrementalHoareTripleChecker+Unchecked, 23.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:44:12,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 1203 Invalid, 2170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [268 Valid, 1624 Invalid, 0 Unknown, 278 Unchecked, 23.0s Time] [2022-11-03 03:44:12,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2022-11-03 03:44:12,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 114. [2022-11-03 03:44:12,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 90 states have (on average 1.0444444444444445) internal successors, (94), 91 states have internal predecessors, (94), 15 states have call successors, (15), 9 states have call predecessors, (15), 8 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-03 03:44:12,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 122 transitions. [2022-11-03 03:44:12,918 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 122 transitions. Word has length 108 [2022-11-03 03:44:12,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:44:12,918 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 122 transitions. [2022-11-03 03:44:12,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 50 states have (on average 1.98) internal successors, (99), 48 states have internal predecessors, (99), 15 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (23), 15 states have call predecessors, (23), 14 states have call successors, (23) [2022-11-03 03:44:12,919 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 122 transitions. [2022-11-03 03:44:12,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-03 03:44:12,920 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:44:12,920 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 6, 6, 6, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:44:12,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2022-11-03 03:44:13,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2022-11-03 03:44:13,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (30)] Forceful destruction successful, exit code 0 [2022-11-03 03:44:13,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 03:44:13,538 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:44:13,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:44:13,539 INFO L85 PathProgramCache]: Analyzing trace with hash -55356389, now seen corresponding path program 4 times [2022-11-03 03:44:13,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:44:13,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1755799772] [2022-11-03 03:44:13,540 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-03 03:44:13,540 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:44:13,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:44:13,541 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:44:13,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2022-11-03 03:44:16,157 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-03 03:44:16,158 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 03:44:16,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 140 conjunts are in the unsatisfiable core [2022-11-03 03:44:16,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:44:16,714 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-03 03:44:17,064 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2022-11-03 03:44:17,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:17,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:17,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:17,482 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 33 treesize of output 35 [2022-11-03 03:44:17,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:17,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:17,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:17,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:17,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:17,993 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 44 treesize of output 49 [2022-11-03 03:44:18,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:18,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:18,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:18,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:18,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:18,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:18,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:18,574 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 63 [2022-11-03 03:44:19,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:19,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:19,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:19,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:19,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:19,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:19,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:19,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:19,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:19,322 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 77 [2022-11-03 03:44:19,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:19,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:19,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:19,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:19,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:19,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:19,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:19,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:19,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:19,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:19,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:19,987 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 87 [2022-11-03 03:44:20,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:20,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:20,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:20,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:20,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:20,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:20,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:20,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:20,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:20,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:20,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:20,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:20,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:20,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:20,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:20,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:20,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:20,822 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 101 [2022-11-03 03:44:21,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:21,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:21,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:21,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:21,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:21,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:21,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:21,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:21,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:21,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:21,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:21,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:21,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:21,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:21,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:21,698 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 113 [2022-11-03 03:44:22,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:22,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:22,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:22,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:22,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:22,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:22,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:22,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:22,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:22,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:22,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:22,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:22,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:22,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:22,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:22,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:22,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:22,702 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 126 [2022-11-03 03:44:23,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:23,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:23,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:23,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:23,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:23,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:23,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:23,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:23,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:23,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:23,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:23,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:23,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:23,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:23,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:23,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:23,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:23,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:23,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:23,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:23,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:23,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:23,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:23,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:23,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:23,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:23,811 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 55 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 140 [2022-11-03 03:44:24,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:24,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:24,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:24,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:24,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:24,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:24,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:24,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:25,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:25,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:25,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:25,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:25,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:25,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:25,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:25,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:25,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:25,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:25,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:25,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:25,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:25,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:25,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:25,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:25,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:25,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:25,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:25,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:25,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:25,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:25,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:25,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:25,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:25,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:25,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:25,050 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 66 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 154 [2022-11-03 03:44:26,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:26,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:26,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:26,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:26,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:26,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:26,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:26,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:26,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:26,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:26,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:26,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:26,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:26,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:26,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:26,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:26,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:26,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:26,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:26,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:26,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:26,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:26,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:26,326 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 78 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 0 case distinctions, treesize of input 133 treesize of output 165 [2022-11-03 03:44:27,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:27,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:27,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:27,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:27,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:27,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:27,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:27,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:27,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:27,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:27,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:27,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:27,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:27,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:27,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:27,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:27,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:27,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:27,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:27,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:27,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:27,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:27,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:27,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:27,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:27,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:27,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:27,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:27,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:27,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:27,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:27,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:27,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:27,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:27,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:27,605 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 91 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 0 case distinctions, treesize of input 144 treesize of output 179 [2022-11-03 03:44:29,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:29,105 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 105 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 155 treesize of output 193 [2022-11-03 03:44:30,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:30,660 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 03:44:30,660 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 120 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 105 case distinctions, treesize of input 150 treesize of output 191 [2022-11-03 03:44:40,207 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:44:40,208 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:44:40,209 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:44:40,209 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:44:40,218 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:44:40,219 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:44:40,220 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:44:40,221 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:44:40,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,304 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:44:40,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,358 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:44:40,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,386 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:44:40,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,423 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:44:40,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,436 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:44:40,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,442 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:44:40,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:40,465 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:44:40,614 INFO L356 Elim1Store]: treesize reduction 150, result has 32.1 percent of original size [2022-11-03 03:44:40,614 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 148 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 128 case distinctions, treesize of input 222 treesize of output 294 [2022-11-03 03:44:44,076 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:44:44,077 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:44:44,077 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:44:44,078 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:44:44,078 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:44:44,079 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:44:44,079 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:44:44,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,152 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:44:44,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,165 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:44:44,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,169 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:44:44,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,229 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:44:44,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,246 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:44:44,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,256 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:44:44,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,269 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:44:44,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,330 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:44:44,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,355 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:44:44,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,377 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:44:44,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,386 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:44:44,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,392 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:44:44,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,398 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:44:44,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,403 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:44:44,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:44:44,409 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:44:44,550 INFO L356 Elim1Store]: treesize reduction 216, result has 25.3 percent of original size [2022-11-03 03:44:44,551 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 24 select indices, 24 select index equivalence classes, 127 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 284 case distinctions, treesize of input 300 treesize of output 396 [2022-11-03 03:44:57,112 INFO L356 Elim1Store]: treesize reduction 770, result has 0.9 percent of original size [2022-11-03 03:44:57,113 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 34 select indices, 34 select index equivalence classes, 120 disjoint index pairs (out of 561 index pairs), introduced 34 new quantified variables, introduced 561 case distinctions, treesize of input 239 treesize of output 109 [2022-11-03 03:44:57,652 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 26 proven. 284 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-03 03:44:57,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:44:59,186 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:44:59,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1755799772] [2022-11-03 03:44:59,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1755799772] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:44:59,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [995362215] [2022-11-03 03:44:59,187 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-03 03:44:59,187 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 03:44:59,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 03:44:59,188 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 03:44:59,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2022-11-03 03:45:07,540 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-03 03:45:07,541 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 03:45:07,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 131 conjunts are in the unsatisfiable core [2022-11-03 03:45:07,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:45:07,826 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-03 03:45:10,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:10,353 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-11-03 03:45:11,356 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:45:11,376 INFO L356 Elim1Store]: treesize reduction 18, result has 28.0 percent of original size [2022-11-03 03:45:11,376 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 35 [2022-11-03 03:45:12,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:12,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:12,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:12,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:12,533 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:45:12,539 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:45:12,539 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 45 [2022-11-03 03:45:13,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:13,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:13,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:13,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:13,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:13,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:13,761 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:45:13,767 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:45:13,767 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 59 [2022-11-03 03:45:15,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:15,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:15,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:15,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:15,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:15,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:15,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:15,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:15,177 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:45:15,182 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:45:15,183 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 60 treesize of output 71 [2022-11-03 03:45:16,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:16,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:16,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:16,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:16,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:16,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:16,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:16,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:16,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:16,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:16,570 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:45:16,576 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:45:16,576 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 70 treesize of output 84 [2022-11-03 03:45:18,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:18,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:18,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:18,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:18,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:18,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:18,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:18,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:18,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:18,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:18,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:18,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:18,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:18,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:18,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:18,236 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:45:18,243 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:45:18,243 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 81 treesize of output 98 [2022-11-03 03:45:19,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:19,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:19,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:19,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:19,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:19,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:19,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:20,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:20,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:20,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:20,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:20,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:20,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:20,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:20,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:20,029 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:45:20,037 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:45:20,037 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 7 case distinctions, treesize of input 90 treesize of output 110 [2022-11-03 03:45:21,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:21,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:21,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:21,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:21,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:21,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:21,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:21,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:21,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:21,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:21,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:21,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:21,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:21,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:21,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:21,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:21,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:21,994 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:45:22,001 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:45:22,002 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 8 case distinctions, treesize of input 100 treesize of output 123 [2022-11-03 03:45:23,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:23,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:23,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:23,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:23,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:23,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:23,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:23,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:23,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:23,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:23,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:23,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:23,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:23,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:23,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:23,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:23,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:23,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:23,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:23,910 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:45:23,917 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:45:23,918 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 45 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 9 case distinctions, treesize of input 110 treesize of output 136 [2022-11-03 03:45:25,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:25,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:25,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:25,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:25,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:25,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:25,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:25,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:25,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:25,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:25,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:25,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:25,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:25,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:25,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:25,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:25,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:25,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:25,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:25,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:25,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:25,966 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:45:25,973 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:45:25,973 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 55 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 10 case distinctions, treesize of input 120 treesize of output 149 [2022-11-03 03:45:28,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:28,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:28,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:28,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:28,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:28,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:28,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:28,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:28,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:28,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:28,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:28,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:28,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:28,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:28,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:28,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:28,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:28,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:28,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:28,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:28,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:28,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:28,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:28,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:28,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:28,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:28,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:28,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:28,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:28,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:28,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:28,180 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:45:28,188 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:45:28,188 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 66 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 11 case distinctions, treesize of input 131 treesize of output 163 [2022-11-03 03:45:30,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:30,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:30,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:30,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:30,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:30,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:30,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:30,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:30,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:30,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:30,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:30,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:30,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:30,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:30,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:30,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:30,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:30,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:30,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:30,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:30,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:30,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:30,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:30,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:30,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:30,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:30,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:30,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:30,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:30,472 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:45:30,478 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:45:30,479 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 78 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 12 case distinctions, treesize of input 140 treesize of output 175 [2022-11-03 03:45:32,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:32,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:32,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:32,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:32,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:32,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:32,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:32,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:32,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:32,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:32,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:32,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:32,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:32,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:32,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:32,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:32,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:32,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:32,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:32,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:32,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:32,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:32,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:32,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:32,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:32,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:32,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:32,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:32,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:32,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:32,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:32,908 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:45:32,917 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:45:32,917 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 13 case distinctions, treesize of input 150 treesize of output 188 [2022-11-03 03:45:35,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:35,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:35,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:35,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:35,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:35,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:35,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:35,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:35,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:35,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:35,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:35,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:35,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:35,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:35,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:35,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:35,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:35,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:35,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:35,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:35,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:35,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:35,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:35,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:35,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:35,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:35,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:35,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:35,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:35,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:35,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:35,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:35,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:35,503 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:45:35,512 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:45:35,512 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 105 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 14 case distinctions, treesize of input 160 treesize of output 201 [2022-11-03 03:45:38,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:38,377 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:45:38,385 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:45:38,385 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 121 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 15 case distinctions, treesize of input 155 treesize of output 199 [2022-11-03 03:45:54,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:54,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:54,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:54,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:54,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:54,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:54,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:54,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:54,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:54,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:54,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:54,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:54,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:54,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:54,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:54,798 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:45:54,799 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:45:54,799 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:45:54,800 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:45:54,801 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:45:54,802 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:45:54,803 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:45:54,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:54,808 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:45:54,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:54,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:54,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:54,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:54,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:54,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:54,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:54,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:54,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:54,833 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:45:54,858 INFO L356 Elim1Store]: treesize reduction 26, result has 21.2 percent of original size [2022-11-03 03:45:54,858 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 17 select indices, 17 select index equivalence classes, 150 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 17 case distinctions, treesize of input 229 treesize of output 304 [2022-11-03 03:46:01,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:01,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:01,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:01,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:01,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:01,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:01,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:01,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:01,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:01,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:01,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:01,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:01,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:01,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:01,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:01,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:01,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:01,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:01,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:01,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:01,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:01,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:01,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:01,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:01,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:01,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:01,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:01,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:01,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:01,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:01,690 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:46:01,691 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:46:01,691 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:46:01,692 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:46:01,693 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:46:01,693 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:46:01,694 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:46:01,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:01,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:01,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:01,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:01,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:01,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:01,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:01,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:01,712 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:46:01,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:01,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:01,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:01,718 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:46:01,729 INFO L356 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-03 03:46:01,729 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 25 select indices, 25 select index equivalence classes, 241 disjoint index pairs (out of 300 index pairs), introduced 25 new quantified variables, introduced 24 case distinctions, treesize of input 284 treesize of output 383 [2022-11-03 03:46:22,080 INFO L356 Elim1Store]: treesize reduction 290, result has 2.4 percent of original size [2022-11-03 03:46:22,081 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 35 select indices, 35 select index equivalence classes, 121 disjoint index pairs (out of 595 index pairs), introduced 35 new quantified variables, introduced 66 case distinctions, treesize of input 246 treesize of output 112 [2022-11-03 03:46:22,107 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 41 proven. 278 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-03 03:46:22,107 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:46:22,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [995362215] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:46:22,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589542050] [2022-11-03 03:46:22,191 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-03 03:46:22,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:46:22,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:46:22,193 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:46:22,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2022-11-03 03:46:23,123 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-03 03:46:23,123 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 03:46:23,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 159 conjunts are in the unsatisfiable core [2022-11-03 03:46:23,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:46:23,171 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-03 03:46:27,411 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-03 03:46:28,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:28,757 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-03 03:46:30,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:30,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:30,651 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 36 [2022-11-03 03:46:32,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:32,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:32,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:32,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:32,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:32,473 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 43 treesize of output 48 [2022-11-03 03:46:34,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:34,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:34,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:34,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:34,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:34,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:34,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:34,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:34,696 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 62 [2022-11-03 03:46:36,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:36,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:36,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:36,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:36,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:36,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:36,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:36,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:36,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:36,839 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 74 [2022-11-03 03:46:39,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:39,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:39,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:39,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:39,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:39,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:39,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:39,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:39,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:39,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:39,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:39,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:39,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:39,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:39,304 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 88 [2022-11-03 03:46:41,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:41,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:41,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:41,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:41,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:41,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:41,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:41,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:41,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:41,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:41,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:41,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:41,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:41,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:41,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:41,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:41,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:41,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:41,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:41,923 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 102 [2022-11-03 03:46:44,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:44,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:44,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:44,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:44,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:44,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:44,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:44,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:44,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:44,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:44,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:44,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:44,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:44,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:44,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:44,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:44,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:44,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:44,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:44,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:44,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:44,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:44,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:44,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:44,995 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 116 [2022-11-03 03:46:47,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:47,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:47,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:47,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:47,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:47,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:47,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:47,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:47,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:47,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:47,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:47,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:47,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:47,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:47,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:47,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:47,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:47,563 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 126 [2022-11-03 03:46:50,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:50,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:50,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:50,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:50,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:50,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:50,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:50,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:50,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:50,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:50,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:50,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:50,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:50,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:50,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:50,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:50,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:50,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:50,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:50,092 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 55 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 139 [2022-11-03 03:46:52,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:52,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:52,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:52,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:52,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:52,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:52,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:52,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:52,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:52,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:52,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:52,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:52,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:52,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:52,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:52,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:52,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:52,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:52,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:52,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:52,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:52,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:52,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:52,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:52,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:52,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:52,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:52,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:52,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:52,952 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 66 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 153 [2022-11-03 03:46:55,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:55,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:55,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:55,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:55,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:55,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:55,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:55,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:55,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:55,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:55,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:55,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:55,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:55,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:55,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:55,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:55,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:55,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:55,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:55,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:55,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:55,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:55,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:55,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:55,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:55,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:55,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:55,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:55,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:55,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:55,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:55,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:55,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:55,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:55,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:55,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:56,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:56,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:56,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:56,005 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 78 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 0 case distinctions, treesize of input 135 treesize of output 167 [2022-11-03 03:46:59,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:59,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:59,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:59,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:59,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:59,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:59,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:59,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:59,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:59,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:59,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:59,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:59,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:59,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:59,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:59,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:59,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:59,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:59,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:59,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:59,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:59,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:59,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:59,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:59,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:46:59,059 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 91 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 178 [2022-11-03 03:47:02,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:02,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:02,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:02,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:02,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:02,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:02,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:02,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:02,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:02,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:02,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:02,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:02,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:02,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:02,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:02,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:02,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:02,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:02,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:02,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:02,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:02,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:02,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:02,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:02,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:02,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:02,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:02,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:02,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:02,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:02,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:02,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:02,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:02,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:02,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:02,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:02,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:02,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:02,338 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 105 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 154 treesize of output 192 [2022-11-03 03:47:05,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:05,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:05,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:05,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:05,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:05,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:05,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:05,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:05,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:05,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:05,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:05,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:05,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:05,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:05,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:05,805 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 122 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 0 case distinctions, treesize of input 147 treesize of output 188 [2022-11-03 03:47:24,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:24,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:24,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:24,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:24,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:24,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:24,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:24,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:24,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:24,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:24,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:24,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:24,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:24,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:24,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:24,091 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:47:24,091 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:47:24,092 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:47:24,092 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:47:24,093 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:47:24,093 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:47:24,094 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:47:24,098 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 150 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 0 case distinctions, treesize of input 222 treesize of output 294 [2022-11-03 03:47:30,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:47:30,469 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:47:30,470 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:47:30,471 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:47:30,471 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:47:30,472 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:47:30,472 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:47:30,473 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:47:30,473 INFO L244 Elim1Store]: Index analysis took 145 ms [2022-11-03 03:47:30,478 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 24 select indices, 24 select index equivalence classes, 242 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 0 case distinctions, treesize of input 300 treesize of output 396 [2022-11-03 03:48:07,193 INFO L356 Elim1Store]: treesize reduction 250, result has 2.7 percent of original size [2022-11-03 03:48:07,193 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 34 select indices, 34 select index equivalence classes, 122 disjoint index pairs (out of 561 index pairs), introduced 34 new quantified variables, introduced 32 case distinctions, treesize of input 239 treesize of output 109 [2022-11-03 03:48:07,218 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 32 proven. 278 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-03 03:48:07,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:48:07,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1589542050] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:48:07,300 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 03:48:07,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 55, 58] total 161 [2022-11-03 03:48:07,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926391589] [2022-11-03 03:48:07,301 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 03:48:07,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 161 states [2022-11-03 03:48:07,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:48:07,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 161 interpolants. [2022-11-03 03:48:07,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=857, Invalid=26533, Unknown=0, NotChecked=0, Total=27390 [2022-11-03 03:48:07,307 INFO L87 Difference]: Start difference. First operand 114 states and 122 transitions. Second operand has 161 states, 155 states have (on average 1.3483870967741935) internal successors, (209), 153 states have internal predecessors, (209), 20 states have call successors, (31), 8 states have call predecessors, (31), 12 states have return successors, (30), 21 states have call predecessors, (30), 19 states have call successors, (30) [2022-11-03 03:49:26,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:49:44,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:49:48,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:49:50,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:49:53,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:50:13,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:50:14,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:50:18,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:51:01,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:51:01,970 INFO L93 Difference]: Finished difference Result 206 states and 220 transitions. [2022-11-03 03:51:01,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-11-03 03:51:01,971 INFO L78 Accepts]: Start accepts. Automaton has has 161 states, 155 states have (on average 1.3483870967741935) internal successors, (209), 153 states have internal predecessors, (209), 20 states have call successors, (31), 8 states have call predecessors, (31), 12 states have return successors, (30), 21 states have call predecessors, (30), 19 states have call successors, (30) Word has length 105 [2022-11-03 03:51:01,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:51:01,972 INFO L225 Difference]: With dead ends: 206 [2022-11-03 03:51:01,972 INFO L226 Difference]: Without dead ends: 168 [2022-11-03 03:51:01,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 143 SyntacticMatches, 28 SemanticMatches, 222 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19328 ImplicationChecksByTransitivity, 213.9s TimeCoverageRelationStatistics Valid=2166, Invalid=47785, Unknown=1, NotChecked=0, Total=49952 [2022-11-03 03:51:01,980 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 225 mSDsluCounter, 3010 mSDsCounter, 0 mSdLazyCounter, 6413 mSolverCounterSat, 375 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 126.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 3078 SdHoareTripleChecker+Invalid, 7347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 375 IncrementalHoareTripleChecker+Valid, 6413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 559 IncrementalHoareTripleChecker+Unchecked, 134.6s IncrementalHoareTripleChecker+Time [2022-11-03 03:51:01,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 3078 Invalid, 7347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [375 Valid, 6413 Invalid, 0 Unknown, 559 Unchecked, 134.6s Time] [2022-11-03 03:51:01,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-11-03 03:51:02,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 162. [2022-11-03 03:51:02,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 124 states have (on average 1.032258064516129) internal successors, (128), 126 states have internal predecessors, (128), 22 states have call successors, (22), 16 states have call predecessors, (22), 15 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-03 03:51:02,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 170 transitions. [2022-11-03 03:51:02,060 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 170 transitions. Word has length 105 [2022-11-03 03:51:02,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:51:02,061 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 170 transitions. [2022-11-03 03:51:02,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 161 states, 155 states have (on average 1.3483870967741935) internal successors, (209), 153 states have internal predecessors, (209), 20 states have call successors, (31), 8 states have call predecessors, (31), 12 states have return successors, (30), 21 states have call predecessors, (30), 19 states have call successors, (30) [2022-11-03 03:51:02,061 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 170 transitions. [2022-11-03 03:51:02,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-03 03:51:02,062 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:51:02,062 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 6, 6, 6, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:51:02,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2022-11-03 03:51:02,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (33)] Forceful destruction successful, exit code 0 [2022-11-03 03:51:02,490 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2022-11-03 03:51:02,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:51:02,663 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:51:02,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:51:02,664 INFO L85 PathProgramCache]: Analyzing trace with hash 831543203, now seen corresponding path program 5 times [2022-11-03 03:51:02,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:51:02,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1558955947] [2022-11-03 03:51:02,664 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-03 03:51:02,665 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:51:02,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:51:02,665 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:51:02,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f69a6bd-17ca-4e54-8768-b32d47bd5e8b/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2022-11-03 03:51:03,796 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 21 check-sat command(s) [2022-11-03 03:51:03,796 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 03:51:03,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 38 conjunts are in the unsatisfiable core [2022-11-03 03:51:03,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:51:05,713 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 38 proven. 406 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-03 03:51:05,713 INFO L328 TraceCheckSpWp]: Computing backward predicates...