./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V --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 50333b6a17e96dff6400d2c6a85c0145ae494daf76266f6b6d6936a12a6b2527 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:59:45,238 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:59:45,241 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:59:45,297 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:59:45,298 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:59:45,300 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:59:45,302 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:59:45,304 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:59:45,306 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:59:45,308 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:59:45,309 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:59:45,311 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:59:45,312 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:59:45,313 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:59:45,315 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:59:45,317 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:59:45,318 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:59:45,320 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:59:45,323 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:59:45,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:59:45,328 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:59:45,333 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:59:45,334 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:59:45,335 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:59:45,340 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:59:45,340 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:59:45,341 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:59:45,342 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:59:45,342 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:59:45,344 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:59:45,344 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:59:45,353 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:59:45,355 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:59:45,356 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:59:45,358 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:59:45,359 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:59:45,360 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:59:45,360 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:59:45,360 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:59:45,361 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:59:45,362 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:59:45,363 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 02:59:45,407 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:59:45,407 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:59:45,408 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:59:45,408 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:59:45,409 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:59:45,409 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:59:45,409 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:59:45,409 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:59:45,410 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:59:45,410 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:59:45,410 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:59:45,410 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:59:45,411 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:59:45,411 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:59:45,411 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:59:45,411 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:59:45,412 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:59:45,412 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:59:45,413 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:59:45,413 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:59:45,413 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:59:45,413 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:59:45,414 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:59:45,414 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:59:45,414 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:59:45,414 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:59:45,415 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:59:45,415 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:59:45,415 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:59:45,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:59:45,416 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:59:45,416 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:59:45,416 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:59:45,416 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:59:45,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:59:45,417 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:59:45,421 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:59:45,421 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:59:45,422 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50333b6a17e96dff6400d2c6a85c0145ae494daf76266f6b6d6936a12a6b2527 [2021-11-23 02:59:45,706 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:59:45,740 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:59:45,742 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:59:45,743 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:59:45,744 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:59:45,745 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i [2021-11-23 02:59:45,833 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/data/9ffae2527/1c92f086a65b4d47b048b53481419603/FLAGabad9cecf [2021-11-23 02:59:46,740 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:59:46,741 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i [2021-11-23 02:59:46,790 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/data/9ffae2527/1c92f086a65b4d47b048b53481419603/FLAGabad9cecf [2021-11-23 02:59:47,186 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/data/9ffae2527/1c92f086a65b4d47b048b53481419603 [2021-11-23 02:59:47,189 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:59:47,190 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:59:47,192 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:59:47,192 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:59:47,196 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:59:47,197 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:59:47" (1/1) ... [2021-11-23 02:59:47,198 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40bf07c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:47, skipping insertion in model container [2021-11-23 02:59:47,198 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:59:47" (1/1) ... [2021-11-23 02:59:47,206 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:59:47,327 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:59:47,616 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_dada82d8-6681-4b1c-9d49-359a9d670e8d/sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i[4493,4506] [2021-11-23 02:59:47,623 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_dada82d8-6681-4b1c-9d49-359a9d670e8d/sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i[4553,4566] [2021-11-23 02:59:48,709 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:48,710 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:48,710 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:48,711 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:48,712 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:48,727 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:48,728 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:48,730 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:48,731 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:48,733 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:48,734 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:48,735 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:48,735 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:49,262 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-23 02:59:49,263 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-23 02:59:49,265 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-23 02:59:49,266 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-23 02:59:49,268 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-23 02:59:49,269 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-23 02:59:49,269 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-23 02:59:49,270 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-23 02:59:49,271 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-23 02:59:49,272 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-23 02:59:49,496 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-23 02:59:49,920 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:49,921 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:49,961 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:49,965 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:49,972 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:49,973 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:49,998 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:49,999 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:49,999 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:50,000 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:50,000 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:50,000 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:50,001 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:50,057 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:59:50,137 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:59:50,165 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_dada82d8-6681-4b1c-9d49-359a9d670e8d/sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i[4493,4506] [2021-11-23 02:59:50,176 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_dada82d8-6681-4b1c-9d49-359a9d670e8d/sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i[4553,4566] [2021-11-23 02:59:50,242 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:50,242 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:50,243 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:50,243 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:50,244 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:50,254 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:50,255 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:50,257 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:50,258 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:50,259 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:50,262 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:50,262 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:50,263 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:50,297 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-23 02:59:50,298 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-23 02:59:50,299 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-23 02:59:50,301 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-23 02:59:50,302 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-23 02:59:50,302 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-23 02:59:50,303 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-23 02:59:50,303 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-23 02:59:50,304 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-23 02:59:50,304 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-23 02:59:50,336 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-23 02:59:50,488 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:50,489 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:50,497 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:50,498 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:50,502 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:50,502 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:50,517 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:50,518 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:50,519 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:50,519 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:50,520 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:50,520 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:50,521 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 02:59:50,542 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:59:50,816 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:59:50,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:50 WrapperNode [2021-11-23 02:59:50,816 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:59:50,817 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:59:50,818 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:59:50,818 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:59:50,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:50" (1/1) ... [2021-11-23 02:59:50,978 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:50" (1/1) ... [2021-11-23 02:59:51,088 INFO L137 Inliner]: procedures = 774, calls = 2441, calls flagged for inlining = 66, calls inlined = 9, statements flattened = 599 [2021-11-23 02:59:51,091 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:59:51,093 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:59:51,093 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:59:51,094 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:59:51,102 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:50" (1/1) ... [2021-11-23 02:59:51,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:50" (1/1) ... [2021-11-23 02:59:51,124 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:50" (1/1) ... [2021-11-23 02:59:51,124 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:50" (1/1) ... [2021-11-23 02:59:51,166 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:50" (1/1) ... [2021-11-23 02:59:51,170 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:50" (1/1) ... [2021-11-23 02:59:51,178 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:50" (1/1) ... [2021-11-23 02:59:51,188 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:59:51,189 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:59:51,189 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:59:51,190 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:59:51,190 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:50" (1/1) ... [2021-11-23 02:59:51,208 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:59:51,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:59:51,239 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:59:51,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:59:51,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-23 02:59:51,282 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_hash_table [2021-11-23 02:59:51,282 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_hash_table [2021-11-23 02:59:51,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:59:51,282 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-11-23 02:59:51,282 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-11-23 02:59:51,283 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 02:59:51,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 02:59:51,283 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2021-11-23 02:59:51,284 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2021-11-23 02:59:51,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:59:51,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:59:51,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:59:51,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:59:51,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:59:51,284 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-23 02:59:51,285 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-23 02:59:51,285 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-11-23 02:59:51,286 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-11-23 02:59:51,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:59:51,286 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2021-11-23 02:59:51,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2021-11-23 02:59:51,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:59:51,286 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-23 02:59:51,287 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-23 02:59:51,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:59:51,287 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2021-11-23 02:59:51,287 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2021-11-23 02:59:51,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:59:51,288 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2021-11-23 02:59:51,288 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2021-11-23 02:59:51,288 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 02:59:51,288 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 02:59:51,288 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2021-11-23 02:59:51,289 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2021-11-23 02:59:51,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 02:59:51,292 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_allocated_hash_table [2021-11-23 02:59:51,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_allocated_hash_table [2021-11-23 02:59:51,293 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-11-23 02:59:51,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-11-23 02:59:51,293 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2021-11-23 02:59:51,294 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2021-11-23 02:59:51,294 INFO L130 BoogieDeclarations]: Found specification of procedure check_hash_table_unchanged [2021-11-23 02:59:51,294 INFO L138 BoogieDeclarations]: Found implementation of procedure check_hash_table_unchanged [2021-11-23 02:59:51,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:59:51,723 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:59:51,725 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:59:52,842 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:59:52,960 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:59:52,961 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 02:59:52,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:59:52 BoogieIcfgContainer [2021-11-23 02:59:52,964 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:59:52,966 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:59:52,966 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:59:52,969 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:59:52,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:59:47" (1/3) ... [2021-11-23 02:59:52,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72c3c47f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:59:52, skipping insertion in model container [2021-11-23 02:59:52,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:50" (2/3) ... [2021-11-23 02:59:52,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72c3c47f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:59:52, skipping insertion in model container [2021-11-23 02:59:52,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:59:52" (3/3) ... [2021-11-23 02:59:52,973 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_table_swap_harness.i [2021-11-23 02:59:52,982 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:59:52,982 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:59:53,048 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:59:53,064 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 02:59:53,068 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:59:53,090 INFO L276 IsEmpty]: Start isEmpty. Operand has 112 states, 59 states have (on average 1.2033898305084745) internal successors, (71), 64 states have internal predecessors, (71), 35 states have call successors, (35), 16 states have call predecessors, (35), 16 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2021-11-23 02:59:53,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-23 02:59:53,099 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:59:53,099 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:59:53,100 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:59:53,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:59:53,106 INFO L85 PathProgramCache]: Analyzing trace with hash 2033396556, now seen corresponding path program 1 times [2021-11-23 02:59:53,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:59:53,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225554545] [2021-11-23 02:59:53,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:59:53,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:59:53,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:59:53,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:59:53,773 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:59:53,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225554545] [2021-11-23 02:59:53,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225554545] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:59:53,774 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:59:53,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:59:53,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771321420] [2021-11-23 02:59:53,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:59:53,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:59:53,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:59:53,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:59:53,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:59:53,818 INFO L87 Difference]: Start difference. First operand has 112 states, 59 states have (on average 1.2033898305084745) internal successors, (71), 64 states have internal predecessors, (71), 35 states have call successors, (35), 16 states have call predecessors, (35), 16 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 02:59:55,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:59:55,506 INFO L93 Difference]: Finished difference Result 164 states and 217 transitions. [2021-11-23 02:59:55,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:59:55,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2021-11-23 02:59:55,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:59:55,519 INFO L225 Difference]: With dead ends: 164 [2021-11-23 02:59:55,519 INFO L226 Difference]: Without dead ends: 125 [2021-11-23 02:59:55,523 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:59:55,526 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 7 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-23 02:59:55,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 245 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-23 02:59:55,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2021-11-23 02:59:55,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 120. [2021-11-23 02:59:55,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 63 states have (on average 1.1746031746031746) internal successors, (74), 67 states have internal predecessors, (74), 40 states have call successors, (40), 16 states have call predecessors, (40), 16 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2021-11-23 02:59:55,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 153 transitions. [2021-11-23 02:59:55,586 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 153 transitions. Word has length 18 [2021-11-23 02:59:55,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:59:55,587 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 153 transitions. [2021-11-23 02:59:55,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 02:59:55,587 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 153 transitions. [2021-11-23 02:59:55,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-23 02:59:55,590 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:59:55,590 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:59:55,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:59:55,590 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:59:55,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:59:55,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1073144067, now seen corresponding path program 1 times [2021-11-23 02:59:55,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:59:55,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047856182] [2021-11-23 02:59:55,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:59:55,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:59:55,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:59:55,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:59:55,781 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:59:55,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047856182] [2021-11-23 02:59:55,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047856182] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:59:55,782 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:59:55,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:59:55,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221987259] [2021-11-23 02:59:55,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:59:55,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:59:55,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:59:55,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:59:55,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:59:55,785 INFO L87 Difference]: Start difference. First operand 120 states and 153 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 02:59:57,485 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:59:57,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:59:57,646 INFO L93 Difference]: Finished difference Result 161 states and 202 transitions. [2021-11-23 02:59:57,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:59:57,647 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19 [2021-11-23 02:59:57,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:59:57,649 INFO L225 Difference]: With dead ends: 161 [2021-11-23 02:59:57,649 INFO L226 Difference]: Without dead ends: 128 [2021-11-23 02:59:57,650 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:59:57,652 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 2 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-23 02:59:57,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 239 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-23 02:59:57,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-11-23 02:59:57,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2021-11-23 02:59:57,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 67 states have (on average 1.1492537313432836) internal successors, (77), 70 states have internal predecessors, (77), 44 states have call successors, (44), 16 states have call predecessors, (44), 16 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2021-11-23 02:59:57,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 163 transitions. [2021-11-23 02:59:57,676 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 163 transitions. Word has length 19 [2021-11-23 02:59:57,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:59:57,677 INFO L470 AbstractCegarLoop]: Abstraction has 128 states and 163 transitions. [2021-11-23 02:59:57,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 02:59:57,677 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 163 transitions. [2021-11-23 02:59:57,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-23 02:59:57,682 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:59:57,683 INFO L514 BasicCegarLoop]: trace histogram [7, 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] [2021-11-23 02:59:57,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:59:57,683 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:59:57,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:59:57,684 INFO L85 PathProgramCache]: Analyzing trace with hash -19964286, now seen corresponding path program 1 times [2021-11-23 02:59:57,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:59:57,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757935733] [2021-11-23 02:59:57,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:59:57,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:59:57,769 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:59:57,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1911119447] [2021-11-23 02:59:57,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:59:57,770 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:59:57,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:59:57,772 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:59:57,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 02:59:58,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:59:58,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 2292 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 02:59:58,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:59:58,632 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-23 02:59:58,632 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:59:58,632 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:59:58,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757935733] [2021-11-23 02:59:58,636 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:59:58,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911119447] [2021-11-23 02:59:58,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911119447] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:59:58,637 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:59:58,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 02:59:58,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175866092] [2021-11-23 02:59:58,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:59:58,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:59:58,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:59:58,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:59:58,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:59:58,641 INFO L87 Difference]: Start difference. First operand 128 states and 163 transitions. Second operand has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-23 02:59:59,730 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:59:59,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:59:59,911 INFO L93 Difference]: Finished difference Result 255 states and 331 transitions. [2021-11-23 02:59:59,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:59:59,912 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 96 [2021-11-23 02:59:59,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:59:59,914 INFO L225 Difference]: With dead ends: 255 [2021-11-23 02:59:59,914 INFO L226 Difference]: Without dead ends: 132 [2021-11-23 02:59:59,917 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:59:59,918 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 1 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:59:59,918 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 464 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-23 02:59:59,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-11-23 02:59:59,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2021-11-23 02:59:59,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 70 states have (on average 1.1428571428571428) internal successors, (80), 73 states have internal predecessors, (80), 44 states have call successors, (44), 16 states have call predecessors, (44), 17 states have return successors, (43), 43 states have call predecessors, (43), 42 states have call successors, (43) [2021-11-23 02:59:59,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 167 transitions. [2021-11-23 02:59:59,944 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 167 transitions. Word has length 96 [2021-11-23 02:59:59,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:59:59,945 INFO L470 AbstractCegarLoop]: Abstraction has 132 states and 167 transitions. [2021-11-23 02:59:59,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-23 02:59:59,945 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 167 transitions. [2021-11-23 02:59:59,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-23 02:59:59,954 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:59:59,955 INFO L514 BasicCegarLoop]: trace histogram [7, 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] [2021-11-23 02:59:59,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 03:00:00,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:00:00,182 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:00:00,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:00:00,182 INFO L85 PathProgramCache]: Analyzing trace with hash -882981322, now seen corresponding path program 1 times [2021-11-23 03:00:00,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:00:00,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188562812] [2021-11-23 03:00:00,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:00:00,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:00:00,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:00:00,612 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 03:00:00,612 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:00:00,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188562812] [2021-11-23 03:00:00,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188562812] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:00:00,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587462592] [2021-11-23 03:00:00,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:00:00,613 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:00:00,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:00:00,615 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:00:00,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 03:00:01,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:00:01,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 2320 conjuncts, 46 conjunts are in the unsatisfiable core [2021-11-23 03:00:01,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:00:01,371 INFO L388 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 16 treesize of output 12 [2021-11-23 03:00:02,060 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-23 03:00:02,060 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:00:02,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587462592] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:00:02,061 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 03:00:02,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [10] total 15 [2021-11-23 03:00:02,061 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684432031] [2021-11-23 03:00:02,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:00:02,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-23 03:00:02,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:00:02,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-23 03:00:02,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2021-11-23 03:00:02,064 INFO L87 Difference]: Start difference. First operand 132 states and 167 transitions. Second operand has 11 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 5 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) [2021-11-23 03:00:03,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:00:03,387 INFO L93 Difference]: Finished difference Result 254 states and 317 transitions. [2021-11-23 03:00:03,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 03:00:03,388 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 5 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) Word has length 103 [2021-11-23 03:00:03,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:00:03,390 INFO L225 Difference]: With dead ends: 254 [2021-11-23 03:00:03,390 INFO L226 Difference]: Without dead ends: 134 [2021-11-23 03:00:03,391 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2021-11-23 03:00:03,392 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 13 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 927 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 98 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-23 03:00:03,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 927 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 152 Invalid, 0 Unknown, 98 Unchecked, 1.3s Time] [2021-11-23 03:00:03,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-11-23 03:00:03,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2021-11-23 03:00:03,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 72 states have (on average 1.1388888888888888) internal successors, (82), 74 states have internal predecessors, (82), 44 states have call successors, (44), 17 states have call predecessors, (44), 17 states have return successors, (43), 43 states have call predecessors, (43), 42 states have call successors, (43) [2021-11-23 03:00:03,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 169 transitions. [2021-11-23 03:00:03,418 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 169 transitions. Word has length 103 [2021-11-23 03:00:03,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:00:03,421 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 169 transitions. [2021-11-23 03:00:03,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 5 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) [2021-11-23 03:00:03,422 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 169 transitions. [2021-11-23 03:00:03,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-23 03:00:03,424 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:00:03,425 INFO L514 BasicCegarLoop]: trace histogram [7, 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] [2021-11-23 03:00:03,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 03:00:03,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:00:03,626 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:00:03,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:00:03,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1169025982, now seen corresponding path program 1 times [2021-11-23 03:00:03,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:00:03,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508686646] [2021-11-23 03:00:03,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:00:03,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:00:03,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:00:03,970 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 03:00:03,970 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:00:03,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508686646] [2021-11-23 03:00:03,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508686646] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:00:03,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1412124482] [2021-11-23 03:00:03,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:00:03,971 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:00:03,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:00:03,972 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:00:03,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 03:00:04,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:00:04,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 2344 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-23 03:00:04,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:00:04,690 INFO L388 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 16 treesize of output 12 [2021-11-23 03:00:05,188 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-23 03:00:05,188 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:00:05,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1412124482] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:00:05,188 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 03:00:05,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [8] total 20 [2021-11-23 03:00:05,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128533696] [2021-11-23 03:00:05,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:00:05,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-23 03:00:05,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:00:05,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-23 03:00:05,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2021-11-23 03:00:05,190 INFO L87 Difference]: Start difference. First operand 134 states and 169 transitions. Second operand has 14 states, 10 states have (on average 5.7) internal successors, (57), 11 states have internal predecessors, (57), 6 states have call successors, (24), 3 states have call predecessors, (24), 6 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) [2021-11-23 03:00:06,339 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:00:06,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:00:06,612 INFO L93 Difference]: Finished difference Result 260 states and 324 transitions. [2021-11-23 03:00:06,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-23 03:00:06,613 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 10 states have (on average 5.7) internal successors, (57), 11 states have internal predecessors, (57), 6 states have call successors, (24), 3 states have call predecessors, (24), 6 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) Word has length 109 [2021-11-23 03:00:06,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:00:06,616 INFO L225 Difference]: With dead ends: 260 [2021-11-23 03:00:06,616 INFO L226 Difference]: Without dead ends: 137 [2021-11-23 03:00:06,617 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2021-11-23 03:00:06,618 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 16 mSDsluCounter, 927 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 111 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-23 03:00:06,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 935 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 151 Invalid, 0 Unknown, 111 Unchecked, 1.4s Time] [2021-11-23 03:00:06,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-11-23 03:00:06,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2021-11-23 03:00:06,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 74 states have (on average 1.135135135135135) internal successors, (84), 76 states have internal predecessors, (84), 45 states have call successors, (45), 18 states have call predecessors, (45), 17 states have return successors, (44), 43 states have call predecessors, (44), 43 states have call successors, (44) [2021-11-23 03:00:06,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 173 transitions. [2021-11-23 03:00:06,635 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 173 transitions. Word has length 109 [2021-11-23 03:00:06,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:00:06,636 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 173 transitions. [2021-11-23 03:00:06,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 10 states have (on average 5.7) internal successors, (57), 11 states have internal predecessors, (57), 6 states have call successors, (24), 3 states have call predecessors, (24), 6 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) [2021-11-23 03:00:06,637 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 173 transitions. [2021-11-23 03:00:06,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-23 03:00:06,638 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:00:06,638 INFO L514 BasicCegarLoop]: trace histogram [7, 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] [2021-11-23 03:00:06,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 03:00:06,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:00:06,862 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:00:06,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:00:06,862 INFO L85 PathProgramCache]: Analyzing trace with hash 448761474, now seen corresponding path program 1 times [2021-11-23 03:00:06,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:00:06,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204162506] [2021-11-23 03:00:06,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:00:06,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:00:06,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:00:07,248 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 03:00:07,249 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:00:07,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204162506] [2021-11-23 03:00:07,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204162506] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:00:07,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [944865108] [2021-11-23 03:00:07,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:00:07,250 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:00:07,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:00:07,254 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:00:07,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 03:00:07,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:00:07,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 2322 conjuncts, 46 conjunts are in the unsatisfiable core [2021-11-23 03:00:07,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:00:07,854 INFO L388 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 16 treesize of output 12 [2021-11-23 03:00:08,446 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-23 03:00:08,446 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:00:08,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [944865108] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:00:08,447 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 03:00:08,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [10] total 15 [2021-11-23 03:00:08,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759840495] [2021-11-23 03:00:08,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:00:08,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-23 03:00:08,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:00:08,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-23 03:00:08,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2021-11-23 03:00:08,449 INFO L87 Difference]: Start difference. First operand 137 states and 173 transitions. Second operand has 11 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 5 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) [2021-11-23 03:00:09,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:00:09,683 INFO L93 Difference]: Finished difference Result 232 states and 287 transitions. [2021-11-23 03:00:09,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 03:00:09,684 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 5 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) Word has length 104 [2021-11-23 03:00:09,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:00:09,686 INFO L225 Difference]: With dead ends: 232 [2021-11-23 03:00:09,686 INFO L226 Difference]: Without dead ends: 139 [2021-11-23 03:00:09,687 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2021-11-23 03:00:09,688 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 11 mSDsluCounter, 693 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 55 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-23 03:00:09,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 716 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 169 Invalid, 0 Unknown, 55 Unchecked, 1.2s Time] [2021-11-23 03:00:09,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-11-23 03:00:09,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2021-11-23 03:00:09,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 76 states have (on average 1.131578947368421) internal successors, (86), 77 states have internal predecessors, (86), 45 states have call successors, (45), 19 states have call predecessors, (45), 17 states have return successors, (44), 43 states have call predecessors, (44), 43 states have call successors, (44) [2021-11-23 03:00:09,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 175 transitions. [2021-11-23 03:00:09,703 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 175 transitions. Word has length 104 [2021-11-23 03:00:09,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:00:09,703 INFO L470 AbstractCegarLoop]: Abstraction has 139 states and 175 transitions. [2021-11-23 03:00:09,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 5 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) [2021-11-23 03:00:09,704 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 175 transitions. [2021-11-23 03:00:09,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-23 03:00:09,706 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:00:09,706 INFO L514 BasicCegarLoop]: trace histogram [7, 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] [2021-11-23 03:00:09,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 03:00:09,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:00:09,930 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:00:09,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:00:09,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1568364534, now seen corresponding path program 1 times [2021-11-23 03:00:09,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:00:09,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135335509] [2021-11-23 03:00:09,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:00:09,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:00:09,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:00:10,174 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 03:00:10,177 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:00:10,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135335509] [2021-11-23 03:00:10,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135335509] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:00:10,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145851895] [2021-11-23 03:00:10,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:00:10,178 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:00:10,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:00:10,179 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:00:10,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 03:00:10,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:00:10,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 2346 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-23 03:00:10,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:00:10,831 INFO L388 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 16 treesize of output 12 [2021-11-23 03:00:11,235 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-23 03:00:11,236 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:00:11,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [145851895] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:00:11,236 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 03:00:11,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [8] total 20 [2021-11-23 03:00:11,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329141172] [2021-11-23 03:00:11,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:00:11,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-23 03:00:11,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:00:11,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-23 03:00:11,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2021-11-23 03:00:11,239 INFO L87 Difference]: Start difference. First operand 139 states and 175 transitions. Second operand has 14 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 6 states have call successors, (24), 3 states have call predecessors, (24), 6 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) [2021-11-23 03:00:14,070 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:00:15,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:00:15,213 INFO L93 Difference]: Finished difference Result 242 states and 298 transitions. [2021-11-23 03:00:15,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-23 03:00:15,214 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 6 states have call successors, (24), 3 states have call predecessors, (24), 6 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) Word has length 110 [2021-11-23 03:00:15,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:00:15,216 INFO L225 Difference]: With dead ends: 242 [2021-11-23 03:00:15,216 INFO L226 Difference]: Without dead ends: 146 [2021-11-23 03:00:15,217 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2021-11-23 03:00:15,218 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 18 mSDsluCounter, 1097 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 1090 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 184 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-11-23 03:00:15,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 1090 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 164 Invalid, 1 Unknown, 184 Unchecked, 3.9s Time] [2021-11-23 03:00:15,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-11-23 03:00:15,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2021-11-23 03:00:15,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 80 states have (on average 1.125) internal successors, (90), 82 states have internal predecessors, (90), 47 states have call successors, (47), 20 states have call predecessors, (47), 18 states have return successors, (46), 44 states have call predecessors, (46), 45 states have call successors, (46) [2021-11-23 03:00:15,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 183 transitions. [2021-11-23 03:00:15,233 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 183 transitions. Word has length 110 [2021-11-23 03:00:15,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:00:15,233 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 183 transitions. [2021-11-23 03:00:15,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 6 states have call successors, (24), 3 states have call predecessors, (24), 6 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) [2021-11-23 03:00:15,234 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 183 transitions. [2021-11-23 03:00:15,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-23 03:00:15,235 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:00:15,236 INFO L514 BasicCegarLoop]: trace histogram [7, 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] [2021-11-23 03:00:15,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-23 03:00:15,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:00:15,462 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:00:15,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:00:15,462 INFO L85 PathProgramCache]: Analyzing trace with hash -481514599, now seen corresponding path program 1 times [2021-11-23 03:00:15,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:00:15,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959586353] [2021-11-23 03:00:15,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:00:15,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:00:15,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:00:20,293 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-11-23 03:00:20,293 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:00:20,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959586353] [2021-11-23 03:00:20,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959586353] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:00:20,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1487935827] [2021-11-23 03:00:20,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:00:20,294 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:00:20,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:00:20,294 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:00:20,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-23 03:00:20,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:00:20,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 2373 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-23 03:00:20,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:00:21,043 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 03:00:21,043 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:00:21,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1487935827] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:00:21,043 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 03:00:21,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [33] total 36 [2021-11-23 03:00:21,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976156000] [2021-11-23 03:00:21,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:00:21,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:00:21,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:00:21,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:00:21,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1144, Unknown=0, NotChecked=0, Total=1260 [2021-11-23 03:00:21,046 INFO L87 Difference]: Start difference. First operand 146 states and 183 transitions. Second operand has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-23 03:00:22,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:00:22,107 INFO L93 Difference]: Finished difference Result 291 states and 367 transitions. [2021-11-23 03:00:22,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:00:22,108 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 113 [2021-11-23 03:00:22,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:00:22,109 INFO L225 Difference]: With dead ends: 291 [2021-11-23 03:00:22,110 INFO L226 Difference]: Without dead ends: 148 [2021-11-23 03:00:22,111 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=116, Invalid=1144, Unknown=0, NotChecked=0, Total=1260 [2021-11-23 03:00:22,112 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 0 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:00:22,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 425 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-23 03:00:22,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-11-23 03:00:22,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2021-11-23 03:00:22,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 81 states have (on average 1.123456790123457) internal successors, (91), 84 states have internal predecessors, (91), 47 states have call successors, (47), 20 states have call predecessors, (47), 19 states have return successors, (47), 44 states have call predecessors, (47), 45 states have call successors, (47) [2021-11-23 03:00:22,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 185 transitions. [2021-11-23 03:00:22,127 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 185 transitions. Word has length 113 [2021-11-23 03:00:22,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:00:22,128 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 185 transitions. [2021-11-23 03:00:22,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-23 03:00:22,128 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 185 transitions. [2021-11-23 03:00:22,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-23 03:00:22,130 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:00:22,130 INFO L514 BasicCegarLoop]: trace histogram [7, 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, 1, 1, 1] [2021-11-23 03:00:22,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-23 03:00:22,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:00:22,350 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:00:22,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:00:22,350 INFO L85 PathProgramCache]: Analyzing trace with hash 233793495, now seen corresponding path program 1 times [2021-11-23 03:00:22,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:00:22,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514284297] [2021-11-23 03:00:22,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:00:22,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:00:22,414 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:00:22,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2068556642] [2021-11-23 03:00:22,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:00:22,415 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:00:22,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:00:22,416 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:00:22,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dada82d8-6681-4b1c-9d49-359a9d670e8d/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-23 03:00:22,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:00:22,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 2447 conjuncts, 71 conjunts are in the unsatisfiable core [2021-11-23 03:00:22,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:00:22,942 INFO L388 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 [2021-11-23 03:00:23,149 INFO L388 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 16 treesize of output 12 [2021-11-23 03:00:23,703 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:00:23,749 INFO L354 Elim1Store]: treesize reduction 100, result has 27.0 percent of original size [2021-11-23 03:00:23,749 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 101 treesize of output 75 [2021-11-23 03:00:24,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2021-11-23 03:00:24,159 INFO L354 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2021-11-23 03:00:24,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 57 treesize of output 41 [2021-11-23 03:00:44,552 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 34 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 03:00:44,552 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:00:44,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 65 [2021-11-23 03:00:45,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 56 [2021-11-23 03:00:55,517 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:00:55,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514284297] [2021-11-23 03:00:55,518 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:00:55,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2068556642] [2021-11-23 03:00:55,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2068556642] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:00:55,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [532038507] [2021-11-23 03:00:55,550 INFO L159 IcfgInterpreter]: Started Sifa with 89 locations of interest [2021-11-23 03:00:55,550 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:00:55,559 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:00:55,564 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:00:55,564 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:00:58,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:00:58,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:00:58,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:00:58,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:00:59,471 INFO L244 Elim1Store]: Index analysis took 1394 ms [2021-11-23 03:03:42,583 WARN L227 SmtUtils]: Spent 2.72m on a formula simplification. DAG size of input: 3759 DAG size of output: 1780 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 03:03:42,600 INFO L354 Elim1Store]: treesize reduction 11453, result has 23.7 percent of original size [2021-11-23 03:03:42,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 197 select indices, 197 select index equivalence classes, 19314 disjoint index pairs (out of 19306 index pairs), introduced 197 new quantified variables, introduced 199 case distinctions, treesize of input 1001 treesize of output 4153 [2021-11-23 03:03:49,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:55,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:00,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:00,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:07,549 INFO L244 Elim1Store]: Index analysis took 19862 ms [2021-11-23 03:10:41,468 WARN L227 SmtUtils]: Spent 6.56m on a formula simplification. DAG size of input: 5146 DAG size of output: 2365 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 03:10:41,479 INFO L354 Elim1Store]: treesize reduction 17193, result has 19.4 percent of original size [2021-11-23 03:10:41,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 202 select indices, 202 select index equivalence classes, 19511 disjoint index pairs (out of 20301 index pairs), introduced 202 new quantified variables, introduced 992 case distinctions, treesize of input 1050 treesize of output 4777 [2021-11-23 03:10:48,412 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 198 [2021-11-23 03:10:48,849 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 198 [2021-11-23 03:10:49,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 03:10:49,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-23 03:10:49,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 03:10:49,510 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-23 03:10:49,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 25 treesize of output 22 [2021-11-23 03:10:49,546 INFO L388 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 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-23 03:10:49,605 INFO L388 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 13 treesize of output 9 [2021-11-23 03:10:49,620 INFO L388 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 15 treesize of output 1 [2021-11-23 03:10:49,630 INFO L388 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 15 treesize of output 1 [2021-11-23 03:10:49,639 INFO L388 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 15 treesize of output 1 [2021-11-23 03:10:49,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:10:49,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:10:49,912 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:10:49,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:10:49,954 INFO L388 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 03:10:49,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 25 treesize of output 22 [2021-11-23 03:10:49,992 INFO L388 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 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-23 03:10:50,051 INFO L388 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 15 treesize of output 1 [2021-11-23 03:10:50,064 INFO L388 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 15 treesize of output 1 [2021-11-23 03:10:50,071 INFO L388 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 13 treesize of output 9 [2021-11-23 03:10:50,079 INFO L388 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 15 treesize of output 1 [2021-11-23 03:10:50,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-23 03:10:50,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-23 03:10:50,159 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-23 03:10:50,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 24 treesize of output 26 [2021-11-23 03:10:50,208 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:10:50,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:10:50,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:10:50,273 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:10:50,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-23 03:10:50,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 03:10:50,465 INFO L354 Elim1Store]: treesize reduction 78, result has 31.0 percent of original size [2021-11-23 03:10:50,465 INFO L388 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 2 case distinctions, treesize of input 149 treesize of output 140 [2021-11-23 03:10:50,496 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-23 03:10:50,496 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 140 treesize of output 144 [2021-11-23 03:10:50,623 INFO L354 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2021-11-23 03:10:50,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 19 [2021-11-23 03:10:50,671 INFO L354 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2021-11-23 03:10:50,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 27 [2021-11-23 03:10:50,718 INFO L354 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2021-11-23 03:10:50,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 27 [2021-11-23 03:10:55,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 03:10:55,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-23 03:10:55,483 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-23 03:10:55,490 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-23 03:10:55,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:10:55,504 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-23 03:10:55,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:10:55,552 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-23 03:10:55,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-23 03:10:55,565 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:10:55,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-23 03:10:55,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-23 03:10:55,656 INFO L388 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 0 case distinctions, treesize of input 14 treesize of output 13 [2021-11-23 03:10:55,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 66 [2021-11-23 03:10:55,744 INFO L388 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 66 treesize of output 62 [2021-11-23 03:10:55,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 58 [2021-11-23 03:10:55,768 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 54 [2021-11-23 03:10:55,794 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 03:10:55,795 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 55 [2021-11-23 03:10:55,827 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:10:56,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 66 [2021-11-23 03:10:56,304 INFO L388 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 66 treesize of output 62 [2021-11-23 03:10:56,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 58 [2021-11-23 03:10:56,337 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 03:10:56,338 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 62 [2021-11-23 03:10:56,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 55 [2021-11-23 03:10:56,371 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:10:56,665 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:10:56,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:56,677 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:10:56,678 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:10:56,768 INFO L354 Elim1Store]: treesize reduction 76, result has 23.2 percent of original size [2021-11-23 03:10:56,768 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 191 treesize of output 161 [2021-11-23 03:10:56,787 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:10:56,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:56,801 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:10:56,802 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:10:56,882 INFO L354 Elim1Store]: treesize reduction 76, result has 23.2 percent of original size [2021-11-23 03:10:56,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 197 treesize of output 167 [2021-11-23 03:10:56,920 INFO L388 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 0 case distinctions, treesize of input 166 treesize of output 165 [2021-11-23 03:10:57,004 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-23 03:10:57,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 165 treesize of output 165 [2021-11-23 03:10:57,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:57,117 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:10:57,133 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 03:10:57,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 30 [2021-11-23 03:10:57,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2021-11-23 03:10:57,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:57,225 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:10:57,242 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 03:10:57,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 26 [2021-11-23 03:10:57,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 03:10:57,322 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:10:57,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:57,434 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 7 [2021-11-23 03:10:57,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:57,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 7 [2021-11-23 03:11:01,359 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 198 [2021-11-23 03:11:01,684 INFO L197 IcfgInterpreter]: Interpreting procedure ensure_allocated_hash_table with input of size 85 for LOIs [2021-11-23 03:11:02,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-23 03:11:02,393 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 03:11:02,520 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 03:11:02,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-23 03:11:03,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:11:03,035 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:11:03,064 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-23 03:11:03,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 40 [2021-11-23 03:11:03,100 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-23 03:11:03,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 43 [2021-11-23 03:11:03,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:11:03,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 9 [2021-11-23 03:11:03,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:11:03,174 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 17 [2021-11-23 03:11:03,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:11:03,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 17 [2021-11-23 03:11:03,325 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-23 03:11:03,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 03:11:03,452 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 131 for LOIs [2021-11-23 03:11:05,646 INFO L197 IcfgInterpreter]: Interpreting procedure save_byte_from_hash_table with input of size 155 for LOIs [2021-11-23 03:11:06,033 INFO L354 Elim1Store]: treesize reduction 52, result has 40.2 percent of original size [2021-11-23 03:11:06,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 3 case distinctions, treesize of input 199 treesize of output 208 [2021-11-23 03:11:06,295 INFO L354 Elim1Store]: treesize reduction 128, result has 42.1 percent of original size [2021-11-23 03:11:06,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 208 treesize of output 281