./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/bin/utaipan-eEHZpOm5b7 --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 23ef598a219073b4e1ea2c3302ab5b9fcd0bd41db1d8d7141c8967f07530c02d --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 19:25:43,879 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 19:25:43,881 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 19:25:43,933 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 19:25:43,934 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 19:25:43,939 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 19:25:43,942 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 19:25:43,946 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 19:25:43,948 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 19:25:43,950 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 19:25:43,951 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 19:25:43,952 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 19:25:43,953 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 19:25:43,954 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 19:25:43,956 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 19:25:43,966 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 19:25:43,968 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 19:25:43,970 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 19:25:43,973 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 19:25:43,981 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 19:25:43,984 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 19:25:43,986 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 19:25:43,990 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 19:25:43,991 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 19:25:43,999 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 19:25:43,999 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 19:25:44,000 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 19:25:44,001 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 19:25:44,001 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 19:25:44,003 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 19:25:44,003 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 19:25:44,004 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 19:25:44,005 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 19:25:44,006 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 19:25:44,008 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 19:25:44,008 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 19:25:44,009 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 19:25:44,009 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 19:25:44,009 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 19:25:44,010 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 19:25:44,011 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 19:25:44,012 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 19:25:44,043 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 19:25:44,043 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 19:25:44,044 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 19:25:44,044 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 19:25:44,045 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 19:25:44,045 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 19:25:44,045 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 19:25:44,046 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 19:25:44,046 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 19:25:44,046 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 19:25:44,047 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 19:25:44,047 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 19:25:44,047 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 19:25:44,047 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 19:25:44,048 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 19:25:44,048 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 19:25:44,048 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 19:25:44,049 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 19:25:44,049 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 19:25:44,050 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 19:25:44,050 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 19:25:44,050 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 19:25:44,051 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 19:25:44,051 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 19:25:44,051 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 19:25:44,051 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 19:25:44,052 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 19:25:44,052 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 19:25:44,052 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 19:25:44,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:25:44,053 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 19:25:44,053 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 19:25:44,053 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 19:25:44,054 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 19:25:44,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 19:25:44,054 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 19:25:44,054 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 19:25:44,055 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 19:25:44,055 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_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23ef598a219073b4e1ea2c3302ab5b9fcd0bd41db1d8d7141c8967f07530c02d [2021-11-25 19:25:44,379 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 19:25:44,403 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 19:25:44,406 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 19:25:44,408 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 19:25:44,409 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 19:25:44,410 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i [2021-11-25 19:25:44,476 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/bin/utaipan-eEHZpOm5b7/data/822a610f5/2469950a3709476b89e822897c54c300/FLAGb9353f510 [2021-11-25 19:25:45,445 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 19:25:45,448 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i [2021-11-25 19:25:45,517 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/bin/utaipan-eEHZpOm5b7/data/822a610f5/2469950a3709476b89e822897c54c300/FLAGb9353f510 [2021-11-25 19:25:45,867 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/bin/utaipan-eEHZpOm5b7/data/822a610f5/2469950a3709476b89e822897c54c300 [2021-11-25 19:25:45,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 19:25:45,875 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 19:25:45,878 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 19:25:45,879 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 19:25:45,888 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 19:25:45,890 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:25:45" (1/1) ... [2021-11-25 19:25:45,892 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cf32f05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:25:45, skipping insertion in model container [2021-11-25 19:25:45,892 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:25:45" (1/1) ... [2021-11-25 19:25:45,902 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 19:25:46,054 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 19:25:46,351 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_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i[4504,4517] [2021-11-25 19:25:46,361 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_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i[4564,4577] [2021-11-25 19:25:47,311 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-25 19:25:47,422 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:25:47,423 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:25:47,426 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:25:47,427 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:25:47,429 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:25:47,449 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:25:47,455 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:25:47,458 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:25:47,463 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:25:47,846 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-25 19:25:47,848 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-25 19:25:47,849 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-25 19:25:47,851 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-25 19:25:47,853 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-25 19:25:47,854 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-25 19:25:47,855 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-25 19:25:47,856 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-25 19:25:47,857 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-25 19:25:47,858 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-25 19:25:48,020 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:25:48,021 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:25:48,089 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:25:48,154 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 19:25:48,170 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_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i[4504,4517] [2021-11-25 19:25:48,170 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_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i[4564,4577] [2021-11-25 19:25:48,228 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-25 19:25:48,247 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:25:48,248 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:25:48,249 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:25:48,250 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:25:48,251 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:25:48,262 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:25:48,263 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:25:48,264 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:25:48,265 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:25:48,334 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-25 19:25:48,336 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-25 19:25:48,337 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-25 19:25:48,338 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-25 19:25:48,339 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-25 19:25:48,340 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-25 19:25:48,340 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-25 19:25:48,352 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-25 19:25:48,353 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-25 19:25:48,353 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-25 19:25:48,404 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:25:48,404 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:25:48,461 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:25:48,845 INFO L208 MainTranslator]: Completed translation [2021-11-25 19:25:48,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:25:48 WrapperNode [2021-11-25 19:25:48,846 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 19:25:48,847 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 19:25:48,848 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 19:25:48,848 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 19:25:48,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:25:48" (1/1) ... [2021-11-25 19:25:49,021 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:25:48" (1/1) ... [2021-11-25 19:25:49,135 INFO L137 Inliner]: procedures = 689, calls = 1509, calls flagged for inlining = 54, calls inlined = 9, statements flattened = 653 [2021-11-25 19:25:49,136 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 19:25:49,137 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 19:25:49,137 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 19:25:49,138 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 19:25:49,148 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:25:48" (1/1) ... [2021-11-25 19:25:49,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:25:48" (1/1) ... [2021-11-25 19:25:49,156 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:25:48" (1/1) ... [2021-11-25 19:25:49,157 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:25:48" (1/1) ... [2021-11-25 19:25:49,194 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:25:48" (1/1) ... [2021-11-25 19:25:49,213 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:25:48" (1/1) ... [2021-11-25 19:25:49,221 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:25:48" (1/1) ... [2021-11-25 19:25:49,244 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 19:25:49,245 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 19:25:49,245 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 19:25:49,245 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 19:25:49,252 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:25:48" (1/1) ... [2021-11-25 19:25:49,261 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:25:49,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:25:49,296 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 19:25:49,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 19:25:49,358 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2021-11-25 19:25:49,359 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2021-11-25 19:25:49,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 19:25:49,360 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2021-11-25 19:25:49,361 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2021-11-25 19:25:49,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 19:25:49,361 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-11-25 19:25:49,362 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-11-25 19:25:49,362 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-25 19:25:49,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-25 19:25:49,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 19:25:49,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 19:25:49,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 19:25:49,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 19:25:49,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 19:25:49,365 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-25 19:25:49,365 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-25 19:25:49,365 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-11-25 19:25:49,365 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-11-25 19:25:49,366 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2021-11-25 19:25:49,366 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2021-11-25 19:25:49,366 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-25 19:25:49,366 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-25 19:25:49,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 19:25:49,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 19:25:49,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 19:25:49,369 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-11-25 19:25:49,369 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-11-25 19:25:49,369 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-25 19:25:49,369 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-25 19:25:49,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 19:25:49,370 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2021-11-25 19:25:49,370 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2021-11-25 19:25:49,370 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2021-11-25 19:25:49,371 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2021-11-25 19:25:49,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 19:25:49,767 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 19:25:49,770 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 19:25:50,682 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 19:25:50,824 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 19:25:50,824 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-25 19:25:50,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:25:50 BoogieIcfgContainer [2021-11-25 19:25:50,827 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 19:25:50,829 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 19:25:50,829 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 19:25:50,833 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 19:25:50,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 07:25:45" (1/3) ... [2021-11-25 19:25:50,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58d22edb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:25:50, skipping insertion in model container [2021-11-25 19:25:50,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:25:48" (2/3) ... [2021-11-25 19:25:50,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58d22edb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:25:50, skipping insertion in model container [2021-11-25 19:25:50,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:25:50" (3/3) ... [2021-11-25 19:25:50,836 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_init_static_harness.i [2021-11-25 19:25:50,842 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 19:25:50,843 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 19:25:50,895 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:25:50,903 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 [2021-11-25 19:25:50,903 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 19:25:50,925 INFO L276 IsEmpty]: Start isEmpty. Operand has 114 states, 62 states have (on average 1.2096774193548387) internal successors, (75), 62 states have internal predecessors, (75), 39 states have call successors, (39), 12 states have call predecessors, (39), 12 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2021-11-25 19:25:50,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-25 19:25:50,935 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:25:50,936 INFO L514 BasicCegarLoop]: trace histogram [13, 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] [2021-11-25 19:25:50,936 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:25:50,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:25:50,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1005210511, now seen corresponding path program 1 times [2021-11-25 19:25:50,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:25:50,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772657179] [2021-11-25 19:25:50,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:25:50,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:25:51,357 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:25:51,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [411343131] [2021-11-25 19:25:51,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:25:51,358 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:25:51,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:25:51,378 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:25:51,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 19:25:52,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:25:52,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 2242 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-25 19:25:52,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:25:52,347 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2021-11-25 19:25:52,347 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:25:52,347 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:25:52,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772657179] [2021-11-25 19:25:52,348 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:25:52,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411343131] [2021-11-25 19:25:52,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [411343131] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:25:52,349 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:25:52,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 19:25:52,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364416780] [2021-11-25 19:25:52,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:25:52,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-25 19:25:52,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:25:52,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-25 19:25:52,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 19:25:52,395 INFO L87 Difference]: Start difference. First operand has 114 states, 62 states have (on average 1.2096774193548387) internal successors, (75), 62 states have internal predecessors, (75), 39 states have call successors, (39), 12 states have call predecessors, (39), 12 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-25 19:25:52,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:25:52,865 INFO L93 Difference]: Finished difference Result 210 states and 288 transitions. [2021-11-25 19:25:52,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 19:25:52,868 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 78 [2021-11-25 19:25:52,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:25:52,880 INFO L225 Difference]: With dead ends: 210 [2021-11-25 19:25:52,881 INFO L226 Difference]: Without dead ends: 111 [2021-11-25 19:25:52,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 19:25:52,891 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-25 19:25:52,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-25 19:25:52,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-11-25 19:25:52,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2021-11-25 19:25:52,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 59 states have (on average 1.1694915254237288) internal successors, (69), 60 states have internal predecessors, (69), 39 states have call successors, (39), 12 states have call predecessors, (39), 12 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2021-11-25 19:25:52,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 146 transitions. [2021-11-25 19:25:52,959 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 146 transitions. Word has length 78 [2021-11-25 19:25:52,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:25:52,961 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 146 transitions. [2021-11-25 19:25:52,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-25 19:25:52,961 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 146 transitions. [2021-11-25 19:25:52,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-25 19:25:52,967 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:25:52,967 INFO L514 BasicCegarLoop]: trace histogram [14, 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] [2021-11-25 19:25:53,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 19:25:53,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-25 19:25:53,194 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:25:53,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:25:53,195 INFO L85 PathProgramCache]: Analyzing trace with hash -2022726481, now seen corresponding path program 1 times [2021-11-25 19:25:53,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:25:53,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086739598] [2021-11-25 19:25:53,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:25:53,196 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:25:53,361 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:25:53,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1040863045] [2021-11-25 19:25:53,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:25:53,362 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:25:53,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:25:53,370 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:25:53,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 19:25:53,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:25:53,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 2316 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-25 19:25:53,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:25:54,251 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2021-11-25 19:25:54,252 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:25:54,252 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:25:54,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086739598] [2021-11-25 19:25:54,254 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:25:54,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1040863045] [2021-11-25 19:25:54,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1040863045] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:25:54,255 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:25:54,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 19:25:54,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069532023] [2021-11-25 19:25:54,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:25:54,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-25 19:25:54,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:25:54,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-25 19:25:54,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-25 19:25:54,260 INFO L87 Difference]: Start difference. First operand 111 states and 146 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 5 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2021-11-25 19:25:55,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:25:55,377 INFO L93 Difference]: Finished difference Result 182 states and 235 transitions. [2021-11-25 19:25:55,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 19:25:55,378 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 5 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) Word has length 91 [2021-11-25 19:25:55,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:25:55,383 INFO L225 Difference]: With dead ends: 182 [2021-11-25 19:25:55,384 INFO L226 Difference]: Without dead ends: 113 [2021-11-25 19:25:55,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-25 19:25:55,387 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 47 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:25:55,390 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 586 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-25 19:25:55,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-11-25 19:25:55,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2021-11-25 19:25:55,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 60 states have (on average 1.1666666666666667) internal successors, (70), 62 states have internal predecessors, (70), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (40), 38 states have call predecessors, (40), 38 states have call successors, (40) [2021-11-25 19:25:55,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 149 transitions. [2021-11-25 19:25:55,433 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 149 transitions. Word has length 91 [2021-11-25 19:25:55,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:25:55,434 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 149 transitions. [2021-11-25 19:25:55,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 5 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2021-11-25 19:25:55,434 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 149 transitions. [2021-11-25 19:25:55,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-25 19:25:55,436 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:25:55,437 INFO L514 BasicCegarLoop]: trace histogram [14, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:25:55,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 19:25:55,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:25:55,637 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:25:55,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:25:55,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1323301135, now seen corresponding path program 1 times [2021-11-25 19:25:55,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:25:55,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672275073] [2021-11-25 19:25:55,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:25:55,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:25:55,755 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:25:55,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [587799718] [2021-11-25 19:25:55,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:25:55,756 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:25:55,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:25:55,757 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:25:55,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 19:25:56,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:25:56,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 2448 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-25 19:25:56,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:25:56,538 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-11-25 19:25:56,539 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:25:56,539 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:25:56,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672275073] [2021-11-25 19:25:56,539 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:25:56,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [587799718] [2021-11-25 19:25:56,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [587799718] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:25:56,540 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:25:56,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 19:25:56,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721543896] [2021-11-25 19:25:56,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:25:56,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 19:25:56,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:25:56,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 19:25:56,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 19:25:56,542 INFO L87 Difference]: Start difference. First operand 113 states and 149 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 4 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2021-11-25 19:25:57,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:25:57,236 INFO L93 Difference]: Finished difference Result 201 states and 261 transitions. [2021-11-25 19:25:57,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 19:25:57,237 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 4 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 100 [2021-11-25 19:25:57,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:25:57,240 INFO L225 Difference]: With dead ends: 201 [2021-11-25 19:25:57,240 INFO L226 Difference]: Without dead ends: 113 [2021-11-25 19:25:57,242 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:25:57,243 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 8 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-25 19:25:57,244 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 615 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-25 19:25:57,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-11-25 19:25:57,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2021-11-25 19:25:57,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 60 states have (on average 1.15) internal successors, (69), 62 states have internal predecessors, (69), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (40), 38 states have call predecessors, (40), 38 states have call successors, (40) [2021-11-25 19:25:57,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 148 transitions. [2021-11-25 19:25:57,266 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 148 transitions. Word has length 100 [2021-11-25 19:25:57,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:25:57,269 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 148 transitions. [2021-11-25 19:25:57,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 4 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2021-11-25 19:25:57,269 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 148 transitions. [2021-11-25 19:25:57,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-25 19:25:57,275 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:25:57,276 INFO L514 BasicCegarLoop]: trace histogram [14, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:25:57,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-25 19:25:57,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:25:57,490 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:25:57,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:25:57,491 INFO L85 PathProgramCache]: Analyzing trace with hash 2097300372, now seen corresponding path program 1 times [2021-11-25 19:25:57,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:25:57,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326416053] [2021-11-25 19:25:57,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:25:57,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:25:57,594 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:25:57,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1022529683] [2021-11-25 19:25:57,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:25:57,595 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:25:57,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:25:57,596 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:25:57,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 19:25:58,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:25:58,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 2455 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-25 19:25:58,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:25:58,478 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-11-25 19:25:58,478 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:25:58,478 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:25:58,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326416053] [2021-11-25 19:25:58,479 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:25:58,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022529683] [2021-11-25 19:25:58,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022529683] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:25:58,479 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:25:58,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:25:58,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312854384] [2021-11-25 19:25:58,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:25:58,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:25:58,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:25:58,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:25:58,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:25:58,481 INFO L87 Difference]: Start difference. First operand 113 states and 148 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-25 19:25:59,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:25:59,148 INFO L93 Difference]: Finished difference Result 202 states and 262 transitions. [2021-11-25 19:25:59,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:25:59,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 101 [2021-11-25 19:25:59,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:25:59,151 INFO L225 Difference]: With dead ends: 202 [2021-11-25 19:25:59,152 INFO L226 Difference]: Without dead ends: 114 [2021-11-25 19:25:59,153 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:25:59,154 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 0 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-25 19:25:59,154 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 254 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-25 19:25:59,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-11-25 19:25:59,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2021-11-25 19:25:59,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 61 states have (on average 1.1475409836065573) internal successors, (70), 63 states have internal predecessors, (70), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (40), 38 states have call predecessors, (40), 38 states have call successors, (40) [2021-11-25 19:25:59,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 149 transitions. [2021-11-25 19:25:59,173 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 149 transitions. Word has length 101 [2021-11-25 19:25:59,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:25:59,173 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 149 transitions. [2021-11-25 19:25:59,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-25 19:25:59,174 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 149 transitions. [2021-11-25 19:25:59,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-25 19:25:59,176 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:25:59,177 INFO L514 BasicCegarLoop]: trace histogram [14, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:25:59,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-25 19:25:59,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:25:59,390 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:25:59,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:25:59,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1901639355, now seen corresponding path program 1 times [2021-11-25 19:25:59,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:25:59,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849876404] [2021-11-25 19:25:59,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:25:59,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:25:59,509 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:25:59,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1662504723] [2021-11-25 19:25:59,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:25:59,510 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:25:59,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:25:59,514 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:25:59,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-25 19:26:00,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:26:00,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 2474 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-25 19:26:00,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:26:00,440 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 104 proven. 1 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-11-25 19:26:00,440 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:26:01,097 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2021-11-25 19:26:01,097 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:26:01,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849876404] [2021-11-25 19:26:01,098 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:26:01,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662504723] [2021-11-25 19:26:01,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1662504723] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:26:01,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1460145389] [2021-11-25 19:26:01,124 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2021-11-25 19:26:01,125 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:26:01,130 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:26:01,136 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:26:01,137 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:26:04,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:26:04,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:26:05,104 INFO L244 Elim1Store]: Index analysis took 697 ms [2021-11-25 19:26:52,483 WARN L227 SmtUtils]: Spent 47.23s on a formula simplification. DAG size of input: 2559 DAG size of output: 1378 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 19:26:52,492 INFO L354 Elim1Store]: treesize reduction 4524, result has 34.2 percent of original size [2021-11-25 19:26:52,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 197 select indices, 197 select index equivalence classes, 19310 disjoint index pairs (out of 19306 index pairs), introduced 197 new quantified variables, introduced 197 case distinctions, treesize of input 995 treesize of output 2957 [2021-11-25 19:26:56,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:26:56,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:26:59,110 INFO L244 Elim1Store]: Index analysis took 3001 ms [2021-11-25 19:28:47,533 WARN L227 SmtUtils]: Spent 1.81m on a formula simplification. DAG size of input: 3151 DAG size of output: 1575 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 19:28:47,540 INFO L354 Elim1Store]: treesize reduction 7470, result has 25.5 percent of original size [2021-11-25 19:28:47,546 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 200 select indices, 200 select index equivalence classes, 19507 disjoint index pairs (out of 19900 index pairs), introduced 200 new quantified variables, introduced 591 case distinctions, treesize of input 1014 treesize of output 3173 [2021-11-25 19:28:50,585 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 197 [2021-11-25 19:28:50,775 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 197 [2021-11-25 19:28:51,136 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 197 [2021-11-25 19:28:51,661 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 [2021-11-25 19:28:51,669 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 [2021-11-25 19:28:51,743 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 [2021-11-25 19:28:51,750 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 [2021-11-25 19:28:51,758 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 [2021-11-25 19:28:51,779 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 [2021-11-25 19:28:52,511 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 [2021-11-25 19:28:52,518 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 [2021-11-25 19:28:52,587 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 [2021-11-25 19:28:52,614 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 [2021-11-25 19:28:52,768 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 [2021-11-25 19:28:52,790 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 [2021-11-25 19:28:54,564 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 [2021-11-25 19:28:54,601 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 11 treesize of output 7 [2021-11-25 19:28:54,634 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:28:54,681 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-25 19:28:54,681 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 1 case distinctions, treesize of input 34 treesize of output 22 [2021-11-25 19:28:54,721 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 11 treesize of output 7 [2021-11-25 19:28:54,927 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 45 treesize of output 41 [2021-11-25 19:28:54,936 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 57 treesize of output 1 [2021-11-25 19:28:54,947 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 57 treesize of output 1 [2021-11-25 19:28:54,955 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 57 treesize of output 1 [2021-11-25 19:28:55,035 INFO L354 Elim1Store]: treesize reduction 135, result has 17.2 percent of original size [2021-11-25 19:28:55,036 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 1 case distinctions, treesize of input 209 treesize of output 208 [2021-11-25 19:28:55,057 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 57 treesize of output 1 [2021-11-25 19:28:55,067 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 57 treesize of output 1 [2021-11-25 19:28:55,078 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 57 treesize of output 1 [2021-11-25 19:28:55,102 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 57 treesize of output 1 [2021-11-25 19:28:55,108 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 57 treesize of output 1 [2021-11-25 19:28:55,113 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 57 treesize of output 1 [2021-11-25 19:28:55,120 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 45 treesize of output 41 [2021-11-25 19:28:55,265 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 [2021-11-25 19:28:55,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 9 treesize of output 5 [2021-11-25 19:28:55,348 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 [2021-11-25 19:28:55,724 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 [2021-11-25 19:28:55,754 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 [2021-11-25 19:28:55,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 9 treesize of output 5 [2021-11-25 19:28:57,725 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 11 treesize of output 7 [2021-11-25 19:28:57,774 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 11 treesize of output 7 [2021-11-25 19:28:57,819 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 [2021-11-25 19:28:57,866 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 [2021-11-25 19:28:58,067 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 [2021-11-25 19:28:58,107 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 [2021-11-25 19:28:58,148 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 28 treesize of output 24 [2021-11-25 19:28:58,221 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 [2021-11-25 19:28:58,423 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 [2021-11-25 19:28:58,502 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 28 treesize of output 24 [2021-11-25 19:28:58,533 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 [2021-11-25 19:28:58,570 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 [2021-11-25 19:28:59,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:28:59,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:28:59,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:28:59,507 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 28 [2021-11-25 19:28:59,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:28:59,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:28:59,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:28:59,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-25 19:28:59,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:28:59,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:28:59,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:28:59,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:28:59,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:28:59,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:28:59,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:28:59,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2021-11-25 19:28:59,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:28:59,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:28:59,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:28:59,765 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 28 [2021-11-25 19:28:59,947 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 [2021-11-25 19:28:59,954 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 [2021-11-25 19:29:00,003 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 [2021-11-25 19:29:00,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:00,034 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:29:00,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 38 [2021-11-25 19:29:00,051 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 [2021-11-25 19:29:00,099 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 [2021-11-25 19:29:00,107 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 [2021-11-25 19:29:00,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:00,141 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:29:00,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 38 [2021-11-25 19:29:00,404 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 [2021-11-25 19:29:00,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:00,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:00,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:00,626 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 0 case distinctions, treesize of input 30 treesize of output 12 [2021-11-25 19:29:00,677 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 [2021-11-25 19:29:00,734 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 [2021-11-25 19:29:00,770 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 [2021-11-25 19:29:01,674 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 [2021-11-25 19:29:02,041 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 [2021-11-25 19:29:02,076 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 [2021-11-25 19:29:03,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:03,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:03,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:29:03,292 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 0 case distinctions, treesize of input 30 treesize of output 12 [2021-11-25 19:29:03,344 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 [2021-11-25 19:29:03,378 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 [2021-11-25 19:29:25,631 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 197 [2021-11-25 19:29:25,876 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 197 [2021-11-25 19:29:26,009 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 197 for LOIs [2021-11-25 19:29:28,077 INFO L197 IcfgInterpreter]: Interpreting procedure aws_array_list_is_valid with input of size 222 for LOIs [2021-11-25 19:29:28,731 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 19:29:28,731 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 12 treesize of output 14 [2021-11-25 19:29:28,870 INFO L197 IcfgInterpreter]: Interpreting procedure aws_mul_size_checked with input of size 60 for LOIs [2021-11-25 19:29:29,054 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 [2021-11-25 19:29:29,064 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 [2021-11-25 19:29:29,076 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 [2021-11-25 19:29:29,092 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 [2021-11-25 19:29:29,176 INFO L197 IcfgInterpreter]: Interpreting procedure __CPROVER_overflow_mult with input of size 60 for LOIs [2021-11-25 19:29:29,220 INFO L197 IcfgInterpreter]: Interpreting procedure my_memset with input of size 170 for LOIs [2021-11-25 19:29:29,981 INFO L197 IcfgInterpreter]: Interpreting procedure memset_impl with input of size 170 for LOIs [2021-11-25 19:29:32,549 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 57 treesize of output 1 [2021-11-25 19:29:32,562 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 57 treesize of output 1 [2021-11-25 19:29:32,586 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 57 treesize of output 1 [2021-11-25 19:29:32,599 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 45 treesize of output 41 [2021-11-25 19:29:32,758 INFO L197 IcfgInterpreter]: Interpreting procedure bounded_malloc with input of size 111 for LOIs [2021-11-25 19:29:33,119 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 116 for LOIs [2021-11-25 19:29:33,141 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:30:00,720 WARN L227 SmtUtils]: Spent 13.32s on a formula simplification. DAG size of input: 131 DAG size of output: 119 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:30:16,212 WARN L227 SmtUtils]: Spent 13.35s on a formula simplification. DAG size of input: 152 DAG size of output: 150 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:30:29,799 WARN L227 SmtUtils]: Spent 12.59s on a formula simplification. DAG size of input: 171 DAG size of output: 164 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:30:54,504 WARN L227 SmtUtils]: Spent 16.42s on a formula simplification. DAG size of input: 208 DAG size of output: 183 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:31:11,688 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (+ (- 48) |c_memset_impl_#in~s.offset|))) (and (<= c_~s_common_log_subject_list~0.subject_list.offset 0) (= |#funAddr~nondet_compare.offset| (select (select |c_old(#memory_$Pointer$.offset)| |c_memset_impl_#in~s.base|) .cse0)) (<= 195 |c_~#s_can_fail_allocator_static~0.base|) (<= 0 |c_#NULL.base|) (<= 196 |c_~#errors~0.base|) (<= 2 c_~s_common_log_subject_list~0.count) (= |c_old(#memory_real)| |c_#memory_real|) (= |c_memset_impl_#in~s.base| c_memset_impl_~s.base) (<= 197 |c_~#s_common_log_subject_infos~0.base|) (<= 0 |c_~#s_can_fail_allocator_static~0.offset|) (= c_memset_impl_~s.offset |c_memset_impl_#in~s.offset|) (<= |c_~#errors~0.offset| 0) (= |c_#memory_int| |c_old(#memory_int)|) (<= 0 |c_~#errors~0.offset|) (= |c_memset_impl_#in~n| 40) (<= |c_~#s_common_log_subject_infos~0.base| 197) (<= 0 |c_memset_impl_#in~s.base|) (= |c_#memory_$Pointer$.base| |c_old(#memory_$Pointer$.base)|) (<= 196 c_~s_list~0.error_list.base) (<= |c_~#s_common_log_subject_infos~0.offset| 0) (<= 46 c_~s_list~0.count) (= |c_memset_impl_#in~c| 0) (<= |c_#NULL.offset| 0) (= |#funAddr~nondet_compare.base| (select (select |c_old(#memory_$Pointer$.base)| |c_memset_impl_#in~s.base|) .cse0)) (<= c_~s_common_log_subject_list~0.count 2) (<= c_~s_list~0.error_list.offset 0) (= |c_#memory_$Pointer$.offset| |c_old(#memory_$Pointer$.offset)|) (<= 0 |c_~#s_common_log_subject_infos~0.offset|) (= |c_memset_impl_#in~c| c_memset_impl_~c) (<= 0 c_~s_common_log_subject_list~0.subject_list.offset) (<= 48 |c_memset_impl_#in~s.offset|) (<= 0 c_~s_list~0.error_list.offset) (<= 197 c_~s_common_log_subject_list~0.subject_list.base) (<= 0 c_~s_common_library_initialized~0) (<= c_~s_common_library_initialized~0 0) (<= |c_#NULL.base| 0) (<= |c_~#errors~0.base| 196) (exists ((|v_ULTIMATE.start_aws_priority_queue_init_static_~heap#1.base_BEFORE_CALL_33| Int) (|v_ULTIMATE.start_aws_priority_queue_init_static_~item_size#1_BEFORE_CALL_33| Int)) (let ((.cse2 (mod |v_ULTIMATE.start_aws_priority_queue_init_static_~item_size#1_BEFORE_CALL_33| 18446744073709551616))) (let ((.cse1 (not (= |v_ULTIMATE.start_aws_priority_queue_init_static_~heap#1.base_BEFORE_CALL_33| 0))) (.cse5 (select |c_#length| |v_ULTIMATE.start_aws_priority_queue_init_static_~heap#1.base_BEFORE_CALL_33|)) (.cse3 (< 0 .cse2))) (and (not (= (mod (ite (= (ite .cse1 1 0) 0) 0 1) 256) 0)) (< |v_ULTIMATE.start_aws_priority_queue_init_static_~heap#1.base_BEFORE_CALL_33| |c_#StackHeapBarrier|) (not (= (mod (ite (= (ite (and (<= .cse2 2) .cse3) 1 0) 0) 0 1) 256) 0)) (let ((.cse4 (= |v_ULTIMATE.start_aws_priority_queue_init_static_~item_size#1_BEFORE_CALL_33| 0))) (or (and .cse4 (= .cse5 0)) (let ((.cse7 (mod (div .cse5 |v_ULTIMATE.start_aws_priority_queue_init_static_~item_size#1_BEFORE_CALL_33|) 18446744073709551616))) (let ((.cse6 (< 0 .cse7))) (and (not (= (mod (ite (= (ite .cse6 1 0) 0) 0 1) 256) 0)) (not (= (mod (ite (= (ite (and .cse6 (<= .cse7 9223372036854775808)) 1 0) 0) 0 1) 256) 0)) (= (mod .cse5 |v_ULTIMATE.start_aws_priority_queue_init_static_~item_size#1_BEFORE_CALL_33|) 0) (not .cse4)))))) .cse1 (not (= (mod (ite (= (ite (<= (mod .cse5 18446744073709551616) 36028797018963967) 1 0) 0) 0 1) 256) 0)) (not (= (mod (ite (= (ite .cse3 1 0) 0) 0 1) 256) 0)) (= (select |c_#valid| |v_ULTIMATE.start_aws_priority_queue_init_static_~heap#1.base_BEFORE_CALL_33|) 1))))) (<= c_~s_common_log_subject_list~0.subject_list.base 197) (<= c_~s_list~0.error_list.base 196) (<= 0 |c_#NULL.offset|) (<= |c_~#s_can_fail_allocator_static~0.base| 195) (<= |c_memset_impl_#in~s.offset| 48) (not (= (mod (ite (= (ite (or (not (= |c_memset_impl_#in~s.base| 0)) (not (= .cse0 0))) 1 0) 0) 0 1) 256) 0)) (<= 0 |c_#StackHeapBarrier|) (<= c_~s_list~0.count 46) (<= |c_~#s_can_fail_allocator_static~0.offset| 0) (= |c_memset_impl_#in~n| c_memset_impl_~n))) is different from false [2021-11-25 19:31:46,031 WARN L227 SmtUtils]: Spent 12.38s on a formula simplification. DAG size of input: 194 DAG size of output: 169 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:32:04,017 WARN L227 SmtUtils]: Spent 15.38s on a formula simplification. DAG size of input: 220 DAG size of output: 195 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:32:50,329 WARN L227 SmtUtils]: Spent 24.07s on a formula simplification. DAG size of input: 276 DAG size of output: 205 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:33:05,871 WARN L227 SmtUtils]: Spent 12.99s on a formula simplification. DAG size of input: 282 DAG size of output: 211 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:33:32,076 WARN L227 SmtUtils]: Spent 21.69s on a formula simplification. DAG size of input: 282 DAG size of output: 211 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:34:00,970 WARN L227 SmtUtils]: Spent 23.74s on a formula simplification. DAG size of input: 305 DAG size of output: 229 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:34:15,935 WARN L227 SmtUtils]: Spent 9.23s on a formula simplification. DAG size of input: 222 DAG size of output: 168 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:34:37,256 WARN L227 SmtUtils]: Spent 13.27s on a formula simplification. DAG size of input: 226 DAG size of output: 172 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:35:16,460 WARN L227 SmtUtils]: Spent 23.17s on a formula simplification. DAG size of input: 400 DAG size of output: 263 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:35:22,326 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3703#(and (<= ~s_common_log_subject_list~0.subject_list.offset 0) (<= 195 |~#s_can_fail_allocator_static~0.base|) (exists ((|v_aws_array_list_is_valid_~#required_size~0.base_21| Int)) (and (or (exists ((v_aws_array_list_is_valid_~list.offset_BEFORE_RETURN_2 Int) (v_aws_array_list_is_valid_~list.base_BEFORE_RETURN_2 Int)) (and (= (mod (select (select |#memory_int| v_aws_array_list_is_valid_~list.base_BEFORE_RETURN_2) (+ v_aws_array_list_is_valid_~list.offset_BEFORE_RETURN_2 8)) 18446744073709551616) 0) (= (select (select |#memory_$Pointer$.base| v_aws_array_list_is_valid_~list.base_BEFORE_RETURN_2) (+ v_aws_array_list_is_valid_~list.offset_BEFORE_RETURN_2 32)) 0) (= (ite (= (ite (and (not (= (mod (ite (= (ite (<= (mod (select (select |#memory_int| |v_aws_array_list_is_valid_~#required_size~0.base_21|) 0) 18446744073709551616) (mod (select (select |#memory_int| v_aws_array_list_is_valid_~list.base_BEFORE_RETURN_2) (+ v_aws_array_list_is_valid_~list.offset_BEFORE_RETURN_2 8)) 18446744073709551616)) 1 0) 0) 0 1) 256) 0)) (not (= (mod (ite (= (ite (not (= (mod (select (select |#memory_int| v_aws_array_list_is_valid_~list.base_BEFORE_RETURN_2) (+ v_aws_array_list_is_valid_~list.offset_BEFORE_RETURN_2 24)) 18446744073709551616) 0)) 1 0) 0) 0 1) 256) 0))) 1 0) 0) 0 1) |__VERIFIER_assert_#in~cond|) (= (select (select |#memory_$Pointer$.offset| v_aws_array_list_is_valid_~list.base_BEFORE_RETURN_2) (+ v_aws_array_list_is_valid_~list.offset_BEFORE_RETURN_2 32)) 0))) (exists ((v_aws_array_list_is_valid_~list.offset_BEFORE_RETURN_2 Int) (v_aws_array_list_is_valid_~list.base_BEFORE_RETURN_2 Int)) (and (or (not (= (mod (select (select |#memory_int| v_aws_array_list_is_valid_~list.base_BEFORE_RETURN_2) (+ v_aws_array_list_is_valid_~list.offset_BEFORE_RETURN_2 8)) 18446744073709551616) 0)) (not (= (select (select |#memory_$Pointer$.offset| v_aws_array_list_is_valid_~list.base_BEFORE_RETURN_2) (+ v_aws_array_list_is_valid_~list.offset_BEFORE_RETURN_2 32)) 0)) (not (= (select (select |#memory_$Pointer$.base| v_aws_array_list_is_valid_~list.base_BEFORE_RETURN_2) (+ v_aws_array_list_is_valid_~list.offset_BEFORE_RETURN_2 32)) 0))) (or (and (= (mod (select (select |#memory_int| v_aws_array_list_is_valid_~list.base_BEFORE_RETURN_2) (+ v_aws_array_list_is_valid_~list.offset_BEFORE_RETURN_2 8)) 18446744073709551616) 0) (= (ite (= (ite (and (not (= (mod (ite (= (ite (<= (mod (select (select |#memory_int| |v_aws_array_list_is_valid_~#required_size~0.base_21|) 0) 18446744073709551616) (mod (select (select |#memory_int| v_aws_array_list_is_valid_~list.base_BEFORE_RETURN_2) (+ v_aws_array_list_is_valid_~list.offset_BEFORE_RETURN_2 8)) 18446744073709551616)) 1 0) 0) 0 1) 256) 0)) (not (= (mod (ite (= (ite (not (= (mod (select (select |#memory_int| v_aws_array_list_is_valid_~list.base_BEFORE_RETURN_2) (+ v_aws_array_list_is_valid_~list.offset_BEFORE_RETURN_2 24)) 18446744073709551616) 0)) 1 0) 0) 0 1) 256) 0))) 1 0) 0) 0 1) |__VERIFIER_assert_#in~cond|)) (and (or (and (or (not (= (select (select |#memory_$Pointer$.offset| v_aws_array_list_is_valid_~list.base_BEFORE_RETURN_2) (+ v_aws_array_list_is_valid_~list.offset_BEFORE_RETURN_2 32)) 0)) (not (= (select (select |#memory_$Pointer$.base| v_aws_array_list_is_valid_~list.base_BEFORE_RETURN_2) (+ v_aws_array_list_is_valid_~list.offset_BEFORE_RETURN_2 32)) 0))) (= (ite (= (ite (and (not (= (mod (ite (= (ite (<= (mod (select (select |#memory_int| |v_aws_array_list_is_valid_~#required_size~0.base_21|) 0) 18446744073709551616) (mod (select (select |#memory_int| v_aws_array_list_is_valid_~list.base_BEFORE_RETURN_2) (+ v_aws_array_list_is_valid_~list.offset_BEFORE_RETURN_2 8)) 18446744073709551616)) 1 0) 0) 0 1) 256) 0)) (not (= (mod (ite (= (ite (not (= (mod (select (select |#memory_int| v_aws_array_list_is_valid_~list.base_BEFORE_RETURN_2) (+ v_aws_array_list_is_valid_~list.offset_BEFORE_RETURN_2 24)) 18446744073709551616) 0)) 1 0) 0) 0 1) 256) 0))) 1 0) 0) 0 1) |__VERIFIER_assert_#in~cond|)) (and (= (select (select |#memory_$Pointer$.base| v_aws_array_list_is_valid_~list.base_BEFORE_RETURN_2) (+ v_aws_array_list_is_valid_~list.offset_BEFORE_RETURN_2 32)) 0) (= |__VERIFIER_assert_#in~cond| 0) (= (select (select |#memory_$Pointer$.offset| v_aws_array_list_is_valid_~list.base_BEFORE_RETURN_2) (+ v_aws_array_list_is_valid_~list.offset_BEFORE_RETURN_2 32)) 0))) (not (= (mod (select (select |#memory_int| v_aws_array_list_is_valid_~list.base_BEFORE_RETURN_2) (+ v_aws_array_list_is_valid_~list.offset_BEFORE_RETURN_2 8)) 18446744073709551616) 0))))))) (= (select |#valid| |v_aws_array_list_is_valid_~#required_size~0.base_21|) 0))) (<= 0 |#NULL.base|) (<= 196 |~#errors~0.base|) (<= 2 ~s_common_log_subject_list~0.count) (<= 197 |~#s_common_log_subject_infos~0.base|) (<= 0 |~#s_can_fail_allocator_static~0.offset|) (= (mod __VERIFIER_assert_~cond 256) 0) (<= |~#errors~0.offset| 0) (<= 0 |~#errors~0.offset|) (<= |~#s_common_log_subject_infos~0.base| 197) (<= 196 ~s_list~0.error_list.base) (<= |~#s_common_log_subject_infos~0.offset| 0) (<= 46 ~s_list~0.count) (<= |#NULL.offset| 0) (<= ~s_common_log_subject_list~0.count 2) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (<= ~s_list~0.error_list.offset 0) (<= 0 |~#s_common_log_subject_infos~0.offset|) (<= 0 ~s_common_log_subject_list~0.subject_list.offset) (<= 0 ~s_list~0.error_list.offset) (<= 197 ~s_common_log_subject_list~0.subject_list.base) (<= 0 ~s_common_library_initialized~0) (<= ~s_common_library_initialized~0 0) (<= |#NULL.base| 0) (<= |~#errors~0.base| 196) (<= ~s_common_log_subject_list~0.subject_list.base 197) (<= ~s_list~0.error_list.base 196) (<= 0 |#NULL.offset|) (<= |~#s_can_fail_allocator_static~0.base| 195) (<= 0 |#StackHeapBarrier|) (<= ~s_list~0.count 46) (<= |~#s_can_fail_allocator_static~0.offset| 0))' at error location [2021-11-25 19:35:22,326 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 19:35:22,326 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 19:35:22,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-11-25 19:35:22,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856404061] [2021-11-25 19:35:22,327 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 19:35:22,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-25 19:35:22,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:35:22,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-25 19:35:22,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=225, Invalid=3079, Unknown=6, NotChecked=112, Total=3422 [2021-11-25 19:35:22,331 INFO L87 Difference]: Start difference. First operand 114 states and 149 transitions. Second operand has 13 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 13 states have internal predecessors, (47), 6 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) [2021-11-25 19:35:23,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:35:23,713 INFO L93 Difference]: Finished difference Result 203 states and 263 transitions. [2021-11-25 19:35:23,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 19:35:23,714 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 13 states have internal predecessors, (47), 6 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) Word has length 102 [2021-11-25 19:35:23,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:35:23,716 INFO L225 Difference]: With dead ends: 203 [2021-11-25 19:35:23,716 INFO L226 Difference]: Without dead ends: 115 [2021-11-25 19:35:23,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 238 SyntacticMatches, 9 SemanticMatches, 59 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1142 ImplicationChecksByTransitivity, 349.4s TimeCoverageRelationStatistics Valid=239, Invalid=3299, Unknown=6, NotChecked=116, Total=3660 [2021-11-25 19:35:23,719 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 11 mSDsluCounter, 825 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 859 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-25 19:35:23,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 859 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-25 19:35:23,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-11-25 19:35:23,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2021-11-25 19:35:23,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 62 states have (on average 1.1451612903225807) internal successors, (71), 64 states have internal predecessors, (71), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (40), 38 states have call predecessors, (40), 38 states have call successors, (40) [2021-11-25 19:35:23,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 150 transitions. [2021-11-25 19:35:23,732 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 150 transitions. Word has length 102 [2021-11-25 19:35:23,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:35:23,733 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 150 transitions. [2021-11-25 19:35:23,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 13 states have internal predecessors, (47), 6 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) [2021-11-25 19:35:23,734 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 150 transitions. [2021-11-25 19:35:23,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-25 19:35:23,737 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:35:23,737 INFO L514 BasicCegarLoop]: trace histogram [14, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:35:23,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-25 19:35:23,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:35:23,942 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:35:23,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:35:23,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1314719308, now seen corresponding path program 2 times [2021-11-25 19:35:23,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:35:23,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787352629] [2021-11-25 19:35:23,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:35:23,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:35:24,023 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:35:24,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1724116673] [2021-11-25 19:35:24,024 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 19:35:24,024 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:35:24,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:35:24,025 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:35:24,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c7a021-6c2a-4f97-b15c-9b9e8d35a0c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-25 19:35:31,886 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-11-25 19:35:31,886 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 19:35:31,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 2359 conjuncts, 179 conjunts are in the unsatisfiable core [2021-11-25 19:35:31,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:35:31,968 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 [2021-11-25 19:35:32,062 INFO L354 Elim1Store]: treesize reduction 60, result has 50.4 percent of original size [2021-11-25 19:35:32,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 105 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 15 case distinctions, treesize of input 81 treesize of output 109 [2021-11-25 19:35:38,206 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 [2021-11-25 19:35:38,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:38,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:38,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:38,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 32 [2021-11-25 19:35:38,230 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 13 treesize of output 9 [2021-11-25 19:35:44,064 WARN L227 SmtUtils]: Spent 5.50s on a formula simplification that was a NOOP. DAG size: 32 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:35:54,471 WARN L227 SmtUtils]: Spent 5.38s on a formula simplification that was a NOOP. DAG size: 44 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:36:01,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:36:01,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:36:01,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:36:01,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:36:01,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:36:01,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:36:01,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:36:01,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:36:01,281 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:36:01,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 174 treesize of output 110 [2021-11-25 19:36:01,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:36:01,305 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 71 treesize of output 59 [2021-11-25 19:36:01,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:36:01,323 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 46 treesize of output 40 [2021-11-25 19:36:01,487 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 25 proven. 9 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2021-11-25 19:36:01,487 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:38:35,323 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:38:35,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787352629] [2021-11-25 19:38:35,323 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:38:35,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1724116673] [2021-11-25 19:38:35,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1724116673] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 19:38:35,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [301105799] [2021-11-25 19:38:35,327 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2021-11-25 19:38:35,328 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:38:35,328 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:38:35,329 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:38:35,329 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:38:37,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:38:37,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:38:38,238 INFO L244 Elim1Store]: Index analysis took 614 ms