./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_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_acc800af-1e75-4c1b-896c-51e9c350136f/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc800af-1e75-4c1b-896c-51e9c350136f/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_acc800af-1e75-4c1b-896c-51e9c350136f/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc800af-1e75-4c1b-896c-51e9c350136f/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc800af-1e75-4c1b-896c-51e9c350136f/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_acc800af-1e75-4c1b-896c-51e9c350136f/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 877e83a63a602219ce02028b5212cf6c29aa8f33a031ee39d52c3c671213dc91 --- 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 04:02:36,348 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 04:02:36,350 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 04:02:36,394 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 04:02:36,402 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 04:02:36,405 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 04:02:36,407 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 04:02:36,415 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 04:02:36,417 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 04:02:36,418 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 04:02:36,420 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 04:02:36,421 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 04:02:36,421 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 04:02:36,422 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 04:02:36,424 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 04:02:36,425 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 04:02:36,431 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 04:02:36,433 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 04:02:36,435 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 04:02:36,437 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 04:02:36,443 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 04:02:36,445 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 04:02:36,446 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 04:02:36,448 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 04:02:36,452 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 04:02:36,458 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 04:02:36,459 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 04:02:36,460 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 04:02:36,461 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 04:02:36,462 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 04:02:36,464 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 04:02:36,465 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 04:02:36,467 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 04:02:36,469 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 04:02:36,471 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 04:02:36,471 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 04:02:36,472 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 04:02:36,472 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 04:02:36,473 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 04:02:36,474 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 04:02:36,475 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 04:02:36,477 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc800af-1e75-4c1b-896c-51e9c350136f/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 04:02:36,503 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 04:02:36,504 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 04:02:36,504 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 04:02:36,504 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 04:02:36,505 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 04:02:36,505 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 04:02:36,506 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 04:02:36,506 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 04:02:36,506 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 04:02:36,507 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 04:02:36,507 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 04:02:36,507 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 04:02:36,507 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 04:02:36,508 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 04:02:36,508 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 04:02:36,508 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 04:02:36,509 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 04:02:36,509 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 04:02:36,510 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 04:02:36,510 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 04:02:36,510 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 04:02:36,510 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 04:02:36,511 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 04:02:36,511 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 04:02:36,511 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 04:02:36,511 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 04:02:36,512 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 04:02:36,512 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 04:02:36,512 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 04:02:36,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:02:36,513 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 04:02:36,513 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 04:02:36,514 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 04:02:36,514 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 04:02:36,514 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 04:02:36,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 04:02:36,515 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 04:02:36,515 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 04:02:36,515 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_acc800af-1e75-4c1b-896c-51e9c350136f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc800af-1e75-4c1b-896c-51e9c350136f/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 877e83a63a602219ce02028b5212cf6c29aa8f33a031ee39d52c3c671213dc91 [2022-11-03 04:02:36,779 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 04:02:36,800 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 04:02:36,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 04:02:36,804 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 04:02:36,805 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 04:02:36,825 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc800af-1e75-4c1b-896c-51e9c350136f/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i [2022-11-03 04:02:36,914 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc800af-1e75-4c1b-896c-51e9c350136f/bin/utaipan-7li7fVZpFI/data/d425f4054/d316f544cdb14ed888c3554de9dbb309/FLAG7ff499dc0 [2022-11-03 04:02:37,739 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 04:02:37,743 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc800af-1e75-4c1b-896c-51e9c350136f/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i [2022-11-03 04:02:37,807 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc800af-1e75-4c1b-896c-51e9c350136f/bin/utaipan-7li7fVZpFI/data/d425f4054/d316f544cdb14ed888c3554de9dbb309/FLAG7ff499dc0 [2022-11-03 04:02:38,311 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc800af-1e75-4c1b-896c-51e9c350136f/bin/utaipan-7li7fVZpFI/data/d425f4054/d316f544cdb14ed888c3554de9dbb309 [2022-11-03 04:02:38,318 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 04:02:38,322 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 04:02:38,324 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 04:02:38,324 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 04:02:38,329 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 04:02:38,331 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:02:38" (1/1) ... [2022-11-03 04:02:38,332 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ff12dc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:02:38, skipping insertion in model container [2022-11-03 04:02:38,333 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:02:38" (1/1) ... [2022-11-03 04:02:38,343 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 04:02:38,506 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 04:02:38,896 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_acc800af-1e75-4c1b-896c-51e9c350136f/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i[4502,4515] [2022-11-03 04:02:38,904 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_acc800af-1e75-4c1b-896c-51e9c350136f/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i[4562,4575] [2022-11-03 04:02:39,746 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-03 04:02:39,823 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:02:39,824 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:02:39,825 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:02:39,826 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:02:39,827 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:02:39,842 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:02:39,843 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:02:39,845 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:02:39,845 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:02:39,848 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:02:39,849 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:02:39,850 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:02:39,850 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:02:40,200 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-03 04:02:40,201 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-03 04:02:40,202 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-03 04:02:40,204 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-03 04:02:40,205 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-03 04:02:40,206 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-03 04:02:40,207 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-03 04:02:40,207 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-03 04:02:40,208 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-03 04:02:40,209 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-03 04:02:40,355 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:02:40,363 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:02:40,422 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:02:40,473 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 04:02:40,503 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_acc800af-1e75-4c1b-896c-51e9c350136f/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i[4502,4515] [2022-11-03 04:02:40,510 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_acc800af-1e75-4c1b-896c-51e9c350136f/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i[4562,4575] [2022-11-03 04:02:40,582 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-03 04:02:40,606 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:02:40,609 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:02:40,615 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:02:40,616 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:02:40,617 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:02:40,624 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:02:40,629 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:02:40,630 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:02:40,631 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:02:40,632 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:02:40,633 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:02:40,634 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:02:40,634 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:02:40,711 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-03 04:02:40,712 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-03 04:02:40,716 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-03 04:02:40,717 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-03 04:02:40,718 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-03 04:02:40,720 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-03 04:02:40,721 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-03 04:02:40,722 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-03 04:02:40,723 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-03 04:02:40,723 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-03 04:02:40,776 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:02:40,784 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 04:02:40,825 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:02:41,077 INFO L208 MainTranslator]: Completed translation [2022-11-03 04:02:41,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:02:41 WrapperNode [2022-11-03 04:02:41,077 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 04:02:41,078 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 04:02:41,079 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 04:02:41,079 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 04:02:41,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:02:41" (1/1) ... [2022-11-03 04:02:41,173 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:02:41" (1/1) ... [2022-11-03 04:02:41,233 INFO L138 Inliner]: procedures = 690, calls = 1715, calls flagged for inlining = 51, calls inlined = 7, statements flattened = 681 [2022-11-03 04:02:41,234 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 04:02:41,234 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 04:02:41,235 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 04:02:41,235 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 04:02:41,253 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:02:41" (1/1) ... [2022-11-03 04:02:41,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:02:41" (1/1) ... [2022-11-03 04:02:41,277 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:02:41" (1/1) ... [2022-11-03 04:02:41,278 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:02:41" (1/1) ... [2022-11-03 04:02:41,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:02:41" (1/1) ... [2022-11-03 04:02:41,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:02:41" (1/1) ... [2022-11-03 04:02:41,371 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:02:41" (1/1) ... [2022-11-03 04:02:41,376 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:02:41" (1/1) ... [2022-11-03 04:02:41,398 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 04:02:41,399 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 04:02:41,400 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 04:02:41,400 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 04:02:41,401 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:02:41" (1/1) ... [2022-11-03 04:02:41,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:02:41,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc800af-1e75-4c1b-896c-51e9c350136f/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:02:41,445 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc800af-1e75-4c1b-896c-51e9c350136f/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 04:02:41,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc800af-1e75-4c1b-896c-51e9c350136f/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 04:02:41,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 04:02:41,498 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-11-03 04:02:41,499 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-11-03 04:02:41,499 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-11-03 04:02:41,499 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-11-03 04:02:41,500 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-03 04:02:41,500 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-03 04:02:41,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 04:02:41,500 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-03 04:02:41,500 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-03 04:02:41,500 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-03 04:02:41,501 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-03 04:02:41,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 04:02:41,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 04:02:41,501 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2022-11-03 04:02:41,502 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2022-11-03 04:02:41,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 04:02:41,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 04:02:41,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 04:02:41,503 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-03 04:02:41,504 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-03 04:02:41,504 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-03 04:02:41,504 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-03 04:02:41,504 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-03 04:02:41,504 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-03 04:02:41,505 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 04:02:41,505 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 04:02:41,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 04:02:41,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 04:02:41,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 04:02:41,506 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-03 04:02:41,506 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-03 04:02:41,506 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-03 04:02:41,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-03 04:02:41,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 04:02:41,508 INFO L130 BoogieDeclarations]: Found specification of procedure assert_array_list_equivalence [2022-11-03 04:02:41,508 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_array_list_equivalence [2022-11-03 04:02:41,509 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-11-03 04:02:41,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-11-03 04:02:41,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 04:02:41,873 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 04:02:41,875 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 04:02:43,434 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 04:02:43,600 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 04:02:43,600 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 04:02:43,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:02:43 BoogieIcfgContainer [2022-11-03 04:02:43,606 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 04:02:43,611 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 04:02:43,612 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 04:02:43,616 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 04:02:43,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:02:38" (1/3) ... [2022-11-03 04:02:43,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b49afad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:02:43, skipping insertion in model container [2022-11-03 04:02:43,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:02:41" (2/3) ... [2022-11-03 04:02:43,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b49afad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:02:43, skipping insertion in model container [2022-11-03 04:02:43,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:02:43" (3/3) ... [2022-11-03 04:02:43,620 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_swap_contents_harness.i [2022-11-03 04:02:43,641 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 04:02:43,645 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 04:02:43,722 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 04:02:43,737 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;@231141f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 04:02:43,738 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 04:02:43,743 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 69 states have (on average 1.144927536231884) internal successors, (79), 70 states have internal predecessors, (79), 52 states have call successors, (52), 14 states have call predecessors, (52), 14 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2022-11-03 04:02:43,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-03 04:02:43,765 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:02:43,766 INFO L195 NwaCegarLoop]: trace histogram [17, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:02:43,767 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:02:43,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:02:43,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1315314645, now seen corresponding path program 1 times [2022-11-03 04:02:43,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:02:43,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480344070] [2022-11-03 04:02:43,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:43,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:02:44,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:45,089 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2022-11-03 04:02:45,090 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:02:45,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480344070] [2022-11-03 04:02:45,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480344070] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:02:45,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369858562] [2022-11-03 04:02:45,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:45,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:02:45,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc800af-1e75-4c1b-896c-51e9c350136f/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:02:45,096 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc800af-1e75-4c1b-896c-51e9c350136f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:02:45,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc800af-1e75-4c1b-896c-51e9c350136f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 04:02:45,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:45,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 2592 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 04:02:45,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:02:46,027 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-11-03 04:02:46,028 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:02:46,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [369858562] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:02:46,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 04:02:46,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2022-11-03 04:02:46,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433463072] [2022-11-03 04:02:46,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:02:46,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:02:46,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:02:46,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:02:46,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:02:46,081 INFO L87 Difference]: Start difference. First operand has 137 states, 69 states have (on average 1.144927536231884) internal successors, (79), 70 states have internal predecessors, (79), 52 states have call successors, (52), 14 states have call predecessors, (52), 14 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-03 04:02:46,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:02:46,801 INFO L93 Difference]: Finished difference Result 270 states and 378 transitions. [2022-11-03 04:02:46,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 04:02:46,805 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 133 [2022-11-03 04:02:46,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:02:46,817 INFO L225 Difference]: With dead ends: 270 [2022-11-03 04:02:46,818 INFO L226 Difference]: Without dead ends: 137 [2022-11-03 04:02:46,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-03 04:02:46,842 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 24 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 04:02:46,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 539 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 04:02:46,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-11-03 04:02:46,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2022-11-03 04:02:46,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 69 states have (on average 1.1304347826086956) internal successors, (78), 71 states have internal predecessors, (78), 52 states have call successors, (52), 14 states have call predecessors, (52), 15 states have return successors, (57), 51 states have call predecessors, (57), 51 states have call successors, (57) [2022-11-03 04:02:46,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 187 transitions. [2022-11-03 04:02:46,959 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 187 transitions. Word has length 133 [2022-11-03 04:02:46,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:02:46,969 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 187 transitions. [2022-11-03 04:02:46,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-03 04:02:46,969 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 187 transitions. [2022-11-03 04:02:46,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-03 04:02:46,973 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:02:46,973 INFO L195 NwaCegarLoop]: trace histogram [17, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:02:47,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc800af-1e75-4c1b-896c-51e9c350136f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 04:02:47,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc800af-1e75-4c1b-896c-51e9c350136f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-03 04:02:47,195 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:02:47,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:02:47,197 INFO L85 PathProgramCache]: Analyzing trace with hash 53104247, now seen corresponding path program 1 times [2022-11-03 04:02:47,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:02:47,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284486361] [2022-11-03 04:02:47,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:47,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:02:47,378 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 04:02:47,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2079635074] [2022-11-03 04:02:47,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:47,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:02:47,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc800af-1e75-4c1b-896c-51e9c350136f/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:02:47,382 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc800af-1e75-4c1b-896c-51e9c350136f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:02:47,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc800af-1e75-4c1b-896c-51e9c350136f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 04:02:48,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:48,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 2724 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 04:02:48,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:02:48,306 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2022-11-03 04:02:48,306 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:02:48,307 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:02:48,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284486361] [2022-11-03 04:02:48,307 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 04:02:48,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2079635074] [2022-11-03 04:02:48,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2079635074] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:02:48,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:02:48,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 04:02:48,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088024486] [2022-11-03 04:02:48,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:02:48,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:02:48,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:02:48,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:02:48,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:02:48,312 INFO L87 Difference]: Start difference. First operand 137 states and 187 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-03 04:02:49,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:02:49,279 INFO L93 Difference]: Finished difference Result 236 states and 323 transitions. [2022-11-03 04:02:49,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 04:02:49,280 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 142 [2022-11-03 04:02:49,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:02:49,286 INFO L225 Difference]: With dead ends: 236 [2022-11-03 04:02:49,286 INFO L226 Difference]: Without dead ends: 137 [2022-11-03 04:02:49,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:02:49,293 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 22 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-03 04:02:49,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 536 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-03 04:02:49,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-11-03 04:02:49,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2022-11-03 04:02:49,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 69 states have (on average 1.1304347826086956) internal successors, (78), 71 states have internal predecessors, (78), 52 states have call successors, (52), 14 states have call predecessors, (52), 15 states have return successors, (55), 51 states have call predecessors, (55), 51 states have call successors, (55) [2022-11-03 04:02:49,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 185 transitions. [2022-11-03 04:02:49,333 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 185 transitions. Word has length 142 [2022-11-03 04:02:49,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:02:49,335 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 185 transitions. [2022-11-03 04:02:49,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-03 04:02:49,336 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 185 transitions. [2022-11-03 04:02:49,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-11-03 04:02:49,339 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:02:49,340 INFO L195 NwaCegarLoop]: trace histogram [17, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:02:49,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc800af-1e75-4c1b-896c-51e9c350136f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 04:02:49,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc800af-1e75-4c1b-896c-51e9c350136f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:02:49,563 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:02:49,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:02:49,564 INFO L85 PathProgramCache]: Analyzing trace with hash -811212753, now seen corresponding path program 2 times [2022-11-03 04:02:49,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:02:49,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765848623] [2022-11-03 04:02:49,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:49,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:02:49,742 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 04:02:49,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2094911595] [2022-11-03 04:02:49,742 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 04:02:49,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:02:49,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc800af-1e75-4c1b-896c-51e9c350136f/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:02:49,745 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc800af-1e75-4c1b-896c-51e9c350136f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:02:49,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc800af-1e75-4c1b-896c-51e9c350136f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 04:02:53,840 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-03 04:02:53,840 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 04:02:53,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 2062 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 04:02:53,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:02:53,907 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked. [2022-11-03 04:02:53,907 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:02:53,908 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:02:53,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765848623] [2022-11-03 04:02:53,908 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 04:02:53,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094911595] [2022-11-03 04:02:53,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2094911595] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:02:53,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:02:53,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 04:02:53,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45041172] [2022-11-03 04:02:53,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:02:53,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:02:53,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:02:53,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:02:53,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:02:53,911 INFO L87 Difference]: Start difference. First operand 137 states and 185 transitions. Second operand has 5 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 3 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-03 04:02:54,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:02:54,963 INFO L93 Difference]: Finished difference Result 201 states and 268 transitions. [2022-11-03 04:02:54,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 04:02:54,964 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 3 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 151 [2022-11-03 04:02:54,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:02:54,966 INFO L225 Difference]: With dead ends: 201 [2022-11-03 04:02:54,966 INFO L226 Difference]: Without dead ends: 137 [2022-11-03 04:02:54,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:02:54,968 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 0 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-03 04:02:54,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 569 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-03 04:02:54,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-11-03 04:02:54,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2022-11-03 04:02:54,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 69 states have (on average 1.1304347826086956) internal successors, (78), 71 states have internal predecessors, (78), 52 states have call successors, (52), 14 states have call predecessors, (52), 15 states have return successors, (54), 51 states have call predecessors, (54), 51 states have call successors, (54) [2022-11-03 04:02:54,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 184 transitions. [2022-11-03 04:02:54,983 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 184 transitions. Word has length 151 [2022-11-03 04:02:54,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:02:54,984 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 184 transitions. [2022-11-03 04:02:54,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 3 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-03 04:02:54,984 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 184 transitions. [2022-11-03 04:02:54,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-11-03 04:02:54,986 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:02:54,987 INFO L195 NwaCegarLoop]: trace histogram [17, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:02:55,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc800af-1e75-4c1b-896c-51e9c350136f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 04:02:55,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc800af-1e75-4c1b-896c-51e9c350136f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:02:55,214 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:02:55,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:02:55,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1427972551, now seen corresponding path program 3 times [2022-11-03 04:02:55,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:02:55,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690285592] [2022-11-03 04:02:55,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:55,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:02:55,314 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 04:02:55,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [65785614] [2022-11-03 04:02:55,314 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-03 04:02:55,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:02:55,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc800af-1e75-4c1b-896c-51e9c350136f/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:02:55,316 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc800af-1e75-4c1b-896c-51e9c350136f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:02:55,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc800af-1e75-4c1b-896c-51e9c350136f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 04:02:56,130 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-03 04:02:56,130 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 04:02:56,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 2988 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 04:02:56,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:02:56,289 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2022-11-03 04:02:56,289 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:02:56,289 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:02:56,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690285592] [2022-11-03 04:02:56,290 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 04:02:56,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65785614] [2022-11-03 04:02:56,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [65785614] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:02:56,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:02:56,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:02:56,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360843969] [2022-11-03 04:02:56,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:02:56,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:02:56,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:02:56,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:02:56,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:02:56,293 INFO L87 Difference]: Start difference. First operand 137 states and 184 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 4 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2022-11-03 04:02:59,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:02:59,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:02:59,690 INFO L93 Difference]: Finished difference Result 206 states and 273 transitions. [2022-11-03 04:02:59,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 04:02:59,696 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 4 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) Word has length 160 [2022-11-03 04:02:59,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:02:59,698 INFO L225 Difference]: With dead ends: 206 [2022-11-03 04:02:59,698 INFO L226 Difference]: Without dead ends: 137 [2022-11-03 04:02:59,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:02:59,702 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 21 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:02:59,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 647 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-03 04:02:59,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-11-03 04:02:59,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2022-11-03 04:02:59,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 69 states have (on average 1.1304347826086956) internal successors, (78), 71 states have internal predecessors, (78), 52 states have call successors, (52), 14 states have call predecessors, (52), 15 states have return successors, (52), 51 states have call predecessors, (52), 51 states have call successors, (52) [2022-11-03 04:02:59,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 182 transitions. [2022-11-03 04:02:59,741 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 182 transitions. Word has length 160 [2022-11-03 04:02:59,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:02:59,744 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 182 transitions. [2022-11-03 04:02:59,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 4 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2022-11-03 04:02:59,745 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 182 transitions. [2022-11-03 04:02:59,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-11-03 04:02:59,750 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:02:59,751 INFO L195 NwaCegarLoop]: trace histogram [17, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:02:59,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc800af-1e75-4c1b-896c-51e9c350136f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-03 04:02:59,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc800af-1e75-4c1b-896c-51e9c350136f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:02:59,967 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:02:59,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:02:59,968 INFO L85 PathProgramCache]: Analyzing trace with hash -539264431, now seen corresponding path program 1 times [2022-11-03 04:02:59,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:02:59,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73365481] [2022-11-03 04:02:59,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:59,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:03:00,125 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 04:03:00,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [58530677] [2022-11-03 04:03:00,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:00,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:03:00,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc800af-1e75-4c1b-896c-51e9c350136f/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:03:00,128 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc800af-1e75-4c1b-896c-51e9c350136f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:03:00,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc800af-1e75-4c1b-896c-51e9c350136f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-03 04:03:05,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:05,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 3252 conjuncts, 416 conjunts are in the unsatisfiable core [2022-11-03 04:03:05,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:03:05,510 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-03 04:03:05,512 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-11-03 04:03:06,366 INFO L356 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-11-03 04:03:06,366 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 37 [2022-11-03 04:03:06,986 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-03 04:03:07,934 INFO L356 Elim1Store]: treesize reduction 44, result has 47.0 percent of original size [2022-11-03 04:03:07,934 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 25 treesize of output 48 [2022-11-03 04:04:02,071 WARN L234 SmtUtils]: Spent 42.36s on a formula simplification. DAG size of input: 849 DAG size of output: 247 (called from [L 353] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-03 04:04:02,073 INFO L356 Elim1Store]: treesize reduction 2510, result has 17.7 percent of original size [2022-11-03 04:04:02,075 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 6 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 19 new quantified variables, introduced 156 case distinctions, treesize of input 527 treesize of output 1510 [2022-11-03 04:04:02,722 INFO L244 Elim1Store]: Index analysis took 405 ms [2022-11-03 04:04:08,058 WARN L234 SmtUtils]: Spent 5.33s on a formula simplification. DAG size of input: 63 DAG size of output: 39 (called from [L 353] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-03 04:04:08,059 INFO L356 Elim1Store]: treesize reduction 60, result has 47.8 percent of original size [2022-11-03 04:04:08,060 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 6 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 453 treesize of output 712