./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 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb93cde-84db-46b3-9c68-ce9d4b2b80b5/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb93cde-84db-46b3-9c68-ce9d4b2b80b5/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb93cde-84db-46b3-9c68-ce9d4b2b80b5/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb93cde-84db-46b3-9c68-ce9d4b2b80b5/bin/utaipan-TEXQjIfE4P/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_efb93cde-84db-46b3-9c68-ce9d4b2b80b5/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb93cde-84db-46b3-9c68-ce9d4b2b80b5/bin/utaipan-TEXQjIfE4P --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 0.2.1-dev-53f42b1 [2021-11-20 23:12:36,847 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 23:12:36,850 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 23:12:36,894 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 23:12:36,898 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 23:12:36,901 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 23:12:36,904 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 23:12:36,908 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 23:12:36,911 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 23:12:36,918 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 23:12:36,919 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 23:12:36,921 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 23:12:36,921 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 23:12:36,924 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 23:12:36,926 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 23:12:36,929 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 23:12:36,931 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 23:12:36,932 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 23:12:36,937 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 23:12:36,946 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 23:12:36,948 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 23:12:36,949 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 23:12:36,952 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 23:12:36,953 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 23:12:36,962 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 23:12:36,962 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 23:12:36,962 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 23:12:36,964 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 23:12:36,965 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 23:12:36,966 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 23:12:36,967 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 23:12:36,968 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 23:12:36,970 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 23:12:36,971 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 23:12:36,972 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 23:12:36,972 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 23:12:36,973 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 23:12:36,973 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 23:12:36,974 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 23:12:36,974 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 23:12:36,975 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 23:12:36,976 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb93cde-84db-46b3-9c68-ce9d4b2b80b5/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-20 23:12:37,017 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 23:12:37,021 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 23:12:37,021 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 23:12:37,022 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 23:12:37,028 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 23:12:37,028 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 23:12:37,029 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 23:12:37,029 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 23:12:37,029 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 23:12:37,029 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 23:12:37,030 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 23:12:37,031 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 23:12:37,031 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 23:12:37,031 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 23:12:37,031 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 23:12:37,032 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 23:12:37,032 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 23:12:37,032 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 23:12:37,033 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 23:12:37,033 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 23:12:37,033 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 23:12:37,033 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 23:12:37,034 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 23:12:37,034 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 23:12:37,034 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 23:12:37,034 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 23:12:37,036 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 23:12:37,036 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 23:12:37,036 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 23:12:37,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:12:37,037 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 23:12:37,037 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 23:12:37,037 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 23:12:37,037 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 23:12:37,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 23:12:37,038 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 23:12:37,038 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 23:12:37,038 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 23:12:37,039 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_efb93cde-84db-46b3-9c68-ce9d4b2b80b5/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb93cde-84db-46b3-9c68-ce9d4b2b80b5/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23ef598a219073b4e1ea2c3302ab5b9fcd0bd41db1d8d7141c8967f07530c02d [2021-11-20 23:12:37,278 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 23:12:37,298 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 23:12:37,300 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 23:12:37,302 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 23:12:37,302 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 23:12:37,304 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb93cde-84db-46b3-9c68-ce9d4b2b80b5/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i [2021-11-20 23:12:37,386 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb93cde-84db-46b3-9c68-ce9d4b2b80b5/bin/utaipan-TEXQjIfE4P/data/1cf068324/aae9cb08d1d542a88b66a0365ac9ced8/FLAG45b70ebc8 [2021-11-20 23:12:38,257 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 23:12:38,259 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb93cde-84db-46b3-9c68-ce9d4b2b80b5/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i [2021-11-20 23:12:38,307 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb93cde-84db-46b3-9c68-ce9d4b2b80b5/bin/utaipan-TEXQjIfE4P/data/1cf068324/aae9cb08d1d542a88b66a0365ac9ced8/FLAG45b70ebc8 [2021-11-20 23:12:38,717 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb93cde-84db-46b3-9c68-ce9d4b2b80b5/bin/utaipan-TEXQjIfE4P/data/1cf068324/aae9cb08d1d542a88b66a0365ac9ced8 [2021-11-20 23:12:38,722 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 23:12:38,725 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 23:12:38,728 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 23:12:38,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 23:12:38,732 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 23:12:38,733 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:12:38" (1/1) ... [2021-11-20 23:12:38,735 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@588b7701 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:38, skipping insertion in model container [2021-11-20 23:12:38,735 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:12:38" (1/1) ... [2021-11-20 23:12:38,743 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 23:12:38,859 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 23:12:39,178 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_efb93cde-84db-46b3-9c68-ce9d4b2b80b5/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i[4504,4517] [2021-11-20 23:12:39,184 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_efb93cde-84db-46b3-9c68-ce9d4b2b80b5/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i[4564,4577] [2021-11-20 23:12:40,028 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-20 23:12:40,095 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:12:40,096 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:12:40,096 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:12:40,097 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:12:40,098 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:12:40,120 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:12:40,121 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:12:40,123 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:12:40,123 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:12:40,475 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-20 23:12:40,476 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-20 23:12:40,477 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-20 23:12:40,478 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-20 23:12:40,480 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-20 23:12:40,481 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-20 23:12:40,482 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-20 23:12:40,482 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-20 23:12:40,483 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-20 23:12:40,484 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-20 23:12:40,665 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:12:40,666 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:12:40,727 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:12:40,756 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 23:12:40,771 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_efb93cde-84db-46b3-9c68-ce9d4b2b80b5/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i[4504,4517] [2021-11-20 23:12:40,772 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_efb93cde-84db-46b3-9c68-ce9d4b2b80b5/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i[4564,4577] [2021-11-20 23:12:40,810 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-20 23:12:40,831 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:12:40,833 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:12:40,838 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:12:40,840 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:12:40,841 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:12:40,849 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:12:40,856 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:12:40,857 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:12:40,858 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:12:40,909 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-20 23:12:40,910 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-20 23:12:40,915 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-20 23:12:40,916 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-20 23:12:40,916 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-20 23:12:40,917 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-20 23:12:40,917 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-20 23:12:40,917 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-20 23:12:40,917 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-20 23:12:40,918 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-20 23:12:40,947 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:12:40,947 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 23:12:40,983 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:12:41,325 INFO L208 MainTranslator]: Completed translation [2021-11-20 23:12:41,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:41 WrapperNode [2021-11-20 23:12:41,326 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 23:12:41,327 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 23:12:41,327 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 23:12:41,327 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 23:12:41,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:41" (1/1) ... [2021-11-20 23:12:41,447 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:41" (1/1) ... [2021-11-20 23:12:41,542 INFO L137 Inliner]: procedures = 689, calls = 1509, calls flagged for inlining = 54, calls inlined = 9, statements flattened = 653 [2021-11-20 23:12:41,542 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 23:12:41,543 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 23:12:41,543 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 23:12:41,543 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 23:12:41,552 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:41" (1/1) ... [2021-11-20 23:12:41,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:41" (1/1) ... [2021-11-20 23:12:41,559 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:41" (1/1) ... [2021-11-20 23:12:41,559 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:41" (1/1) ... [2021-11-20 23:12:41,592 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:41" (1/1) ... [2021-11-20 23:12:41,597 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:41" (1/1) ... [2021-11-20 23:12:41,604 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:41" (1/1) ... [2021-11-20 23:12:41,614 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 23:12:41,615 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 23:12:41,616 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 23:12:41,616 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 23:12:41,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:41" (1/1) ... [2021-11-20 23:12:41,636 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:12:41,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb93cde-84db-46b3-9c68-ce9d4b2b80b5/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:12:41,657 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb93cde-84db-46b3-9c68-ce9d4b2b80b5/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 23:12:41,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb93cde-84db-46b3-9c68-ce9d4b2b80b5/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 23:12:41,719 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2021-11-20 23:12:41,719 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2021-11-20 23:12:41,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 23:12:41,720 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2021-11-20 23:12:41,721 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2021-11-20 23:12:41,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 23:12:41,722 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-11-20 23:12:41,723 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-11-20 23:12:41,723 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-20 23:12:41,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-20 23:12:41,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 23:12:41,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 23:12:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 23:12:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 23:12:41,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 23:12:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-20 23:12:41,724 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-20 23:12:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-11-20 23:12:41,724 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-11-20 23:12:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2021-11-20 23:12:41,725 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2021-11-20 23:12:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-20 23:12:41,725 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-20 23:12:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 23:12:41,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 23:12:41,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 23:12:41,726 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-11-20 23:12:41,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-11-20 23:12:41,727 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-20 23:12:41,727 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-20 23:12:41,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 23:12:41,728 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2021-11-20 23:12:41,728 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2021-11-20 23:12:41,728 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2021-11-20 23:12:41,728 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2021-11-20 23:12:41,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 23:12:42,086 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 23:12:42,088 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 23:12:43,112 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 23:12:43,299 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 23:12:43,299 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-20 23:12:43,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:12:43 BoogieIcfgContainer [2021-11-20 23:12:43,302 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 23:12:43,304 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 23:12:43,304 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 23:12:43,307 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 23:12:43,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:12:38" (1/3) ... [2021-11-20 23:12:43,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3632b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:12:43, skipping insertion in model container [2021-11-20 23:12:43,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:41" (2/3) ... [2021-11-20 23:12:43,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3632b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:12:43, skipping insertion in model container [2021-11-20 23:12:43,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:12:43" (3/3) ... [2021-11-20 23:12:43,317 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_init_static_harness.i [2021-11-20 23:12:43,323 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 23:12:43,324 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 23:12:43,387 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 23:12:43,400 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 [2021-11-20 23:12:43,400 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 23:12:43,423 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) [2021-11-20 23:12:43,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-20 23:12:43,434 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:12:43,435 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] [2021-11-20 23:12:43,435 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:12:43,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:12:43,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1005210511, now seen corresponding path program 1 times [2021-11-20 23:12:43,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:12:43,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857739915] [2021-11-20 23:12:43,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:12:43,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:12:43,809 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:12:43,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [648404585] [2021-11-20 23:12:43,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:12:43,811 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:12:43,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb93cde-84db-46b3-9c68-ce9d4b2b80b5/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:12:43,813 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb93cde-84db-46b3-9c68-ce9d4b2b80b5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:12:43,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb93cde-84db-46b3-9c68-ce9d4b2b80b5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 23:12:44,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:12:44,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 2138 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-20 23:12:44,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:12:44,572 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2021-11-20 23:12:44,572 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:12:44,573 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:12:44,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857739915] [2021-11-20 23:12:44,573 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:12:44,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [648404585] [2021-11-20 23:12:44,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [648404585] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:12:44,574 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:12:44,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 23:12:44,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912285230] [2021-11-20 23:12:44,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:12:44,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 23:12:44,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:12:44,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 23:12:44,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 23:12:44,612 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) [2021-11-20 23:12:45,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:12:45,020 INFO L93 Difference]: Finished difference Result 210 states and 288 transitions. [2021-11-20 23:12:45,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 23:12:45,023 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 [2021-11-20 23:12:45,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:12:45,036 INFO L225 Difference]: With dead ends: 210 [2021-11-20 23:12:45,036 INFO L226 Difference]: Without dead ends: 111 [2021-11-20 23:12:45,042 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 [2021-11-20 23:12:45,048 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:12:45,052 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 23:12:45,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-11-20 23:12:45,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2021-11-20 23:12:45,117 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) [2021-11-20 23:12:45,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 146 transitions. [2021-11-20 23:12:45,129 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 146 transitions. Word has length 78 [2021-11-20 23:12:45,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:12:45,131 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 146 transitions. [2021-11-20 23:12:45,132 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) [2021-11-20 23:12:45,132 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 146 transitions. [2021-11-20 23:12:45,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-20 23:12:45,138 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:12:45,139 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] [2021-11-20 23:12:45,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb93cde-84db-46b3-9c68-ce9d4b2b80b5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 23:12:45,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb93cde-84db-46b3-9c68-ce9d4b2b80b5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:12:45,355 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:12:45,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:12:45,356 INFO L85 PathProgramCache]: Analyzing trace with hash -2022726481, now seen corresponding path program 1 times [2021-11-20 23:12:45,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:12:45,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757021117] [2021-11-20 23:12:45,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:12:45,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:12:45,453 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:12:45,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [801161520] [2021-11-20 23:12:45,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:12:45,454 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:12:45,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb93cde-84db-46b3-9c68-ce9d4b2b80b5/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:12:45,455 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb93cde-84db-46b3-9c68-ce9d4b2b80b5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:12:45,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb93cde-84db-46b3-9c68-ce9d4b2b80b5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 23:12:45,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:12:45,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 2212 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 23:12:45,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:12:46,214 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2021-11-20 23:12:46,215 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:12:46,215 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:12:46,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757021117] [2021-11-20 23:12:46,215 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:12:46,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [801161520] [2021-11-20 23:12:46,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [801161520] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:12:46,216 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:12:46,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 23:12:46,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226074970] [2021-11-20 23:12:46,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:12:46,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 23:12:46,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:12:46,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 23:12:46,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 23:12:46,219 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) [2021-11-20 23:12:47,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:12:47,093 INFO L93 Difference]: Finished difference Result 182 states and 235 transitions. [2021-11-20 23:12:47,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 23:12:47,093 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 [2021-11-20 23:12:47,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:12:47,097 INFO L225 Difference]: With dead ends: 182 [2021-11-20 23:12:47,097 INFO L226 Difference]: Without dead ends: 113 [2021-11-20 23:12:47,099 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-20 23:12:47,100 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 47 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2021-11-20 23:12:47,100 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 586 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-20 23:12:47,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-11-20 23:12:47,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2021-11-20 23:12:47,114 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) [2021-11-20 23:12:47,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 149 transitions. [2021-11-20 23:12:47,116 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 149 transitions. Word has length 91 [2021-11-20 23:12:47,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:12:47,117 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 149 transitions. [2021-11-20 23:12:47,117 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) [2021-11-20 23:12:47,117 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 149 transitions. [2021-11-20 23:12:47,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-20 23:12:47,119 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:12:47,119 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] [2021-11-20 23:12:47,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb93cde-84db-46b3-9c68-ce9d4b2b80b5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 23:12:47,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb93cde-84db-46b3-9c68-ce9d4b2b80b5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:12:47,338 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:12:47,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:12:47,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1323301135, now seen corresponding path program 1 times [2021-11-20 23:12:47,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:12:47,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080373247] [2021-11-20 23:12:47,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:12:47,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:12:47,402 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:12:47,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [140002544] [2021-11-20 23:12:47,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:12:47,403 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:12:47,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb93cde-84db-46b3-9c68-ce9d4b2b80b5/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:12:47,404 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb93cde-84db-46b3-9c68-ce9d4b2b80b5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:12:47,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb93cde-84db-46b3-9c68-ce9d4b2b80b5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 23:12:47,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:12:47,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 2322 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-20 23:12:47,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:12:48,141 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-11-20 23:12:48,145 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:12:48,145 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:12:48,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080373247] [2021-11-20 23:12:48,146 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:12:48,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140002544] [2021-11-20 23:12:48,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [140002544] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:12:48,146 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:12:48,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 23:12:48,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946924828] [2021-11-20 23:12:48,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:12:48,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 23:12:48,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:12:48,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 23:12:48,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 23:12:48,156 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) [2021-11-20 23:12:48,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:12:48,645 INFO L93 Difference]: Finished difference Result 201 states and 261 transitions. [2021-11-20 23:12:48,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 23:12:48,645 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 [2021-11-20 23:12:48,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:12:48,647 INFO L225 Difference]: With dead ends: 201 [2021-11-20 23:12:48,647 INFO L226 Difference]: Without dead ends: 113 [2021-11-20 23:12:48,648 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 [2021-11-20 23:12:48,649 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 8 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2021-11-20 23:12:48,650 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 615 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-20 23:12:48,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-11-20 23:12:48,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2021-11-20 23:12:48,673 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) [2021-11-20 23:12:48,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 148 transitions. [2021-11-20 23:12:48,674 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 148 transitions. Word has length 100 [2021-11-20 23:12:48,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:12:48,675 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 148 transitions. [2021-11-20 23:12:48,675 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) [2021-11-20 23:12:48,675 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 148 transitions. [2021-11-20 23:12:48,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-20 23:12:48,677 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:12:48,677 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] [2021-11-20 23:12:48,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb93cde-84db-46b3-9c68-ce9d4b2b80b5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 23:12:48,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb93cde-84db-46b3-9c68-ce9d4b2b80b5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-11-20 23:12:48,878 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:12:48,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:12:48,878 INFO L85 PathProgramCache]: Analyzing trace with hash 2097300372, now seen corresponding path program 1 times [2021-11-20 23:12:48,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:12:48,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914719760] [2021-11-20 23:12:48,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:12:48,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:12:48,934 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:12:48,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1874667471] [2021-11-20 23:12:48,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:12:48,935 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:12:48,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb93cde-84db-46b3-9c68-ce9d4b2b80b5/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:12:48,936 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb93cde-84db-46b3-9c68-ce9d4b2b80b5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:12:48,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb93cde-84db-46b3-9c68-ce9d4b2b80b5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 23:12:49,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:12:49,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 2329 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 23:12:49,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:12:49,833 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-11-20 23:12:49,834 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:12:49,834 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:12:49,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914719760] [2021-11-20 23:12:49,834 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:12:49,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874667471] [2021-11-20 23:12:49,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1874667471] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:12:49,835 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:12:49,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:12:49,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797470595] [2021-11-20 23:12:49,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:12:49,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:12:49,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:12:49,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:12:49,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:12:49,837 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) [2021-11-20 23:12:50,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:12:50,218 INFO L93 Difference]: Finished difference Result 202 states and 262 transitions. [2021-11-20 23:12:50,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:12:50,219 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 [2021-11-20 23:12:50,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:12:50,221 INFO L225 Difference]: With dead ends: 202 [2021-11-20 23:12:50,222 INFO L226 Difference]: Without dead ends: 114 [2021-11-20 23:12:50,223 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 [2021-11-20 23:12:50,224 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 0 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 23:12:50,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 254 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 23:12:50,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-11-20 23:12:50,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2021-11-20 23:12:50,237 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) [2021-11-20 23:12:50,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 149 transitions. [2021-11-20 23:12:50,239 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 149 transitions. Word has length 101 [2021-11-20 23:12:50,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:12:50,239 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 149 transitions. [2021-11-20 23:12:50,239 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) [2021-11-20 23:12:50,240 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 149 transitions. [2021-11-20 23:12:50,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-20 23:12:50,241 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:12:50,242 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] [2021-11-20 23:12:50,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb93cde-84db-46b3-9c68-ce9d4b2b80b5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-20 23:12:50,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb93cde-84db-46b3-9c68-ce9d4b2b80b5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:12:50,458 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:12:50,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:12:50,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1901639355, now seen corresponding path program 1 times [2021-11-20 23:12:50,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:12:50,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320525696] [2021-11-20 23:12:50,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:12:50,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:12:50,542 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:12:50,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [312946388] [2021-11-20 23:12:50,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:12:50,543 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:12:50,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb93cde-84db-46b3-9c68-ce9d4b2b80b5/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:12:50,544 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb93cde-84db-46b3-9c68-ce9d4b2b80b5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:12:50,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb93cde-84db-46b3-9c68-ce9d4b2b80b5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-20 23:12:51,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:12:51,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 2336 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-20 23:12:51,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:12:51,455 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 104 proven. 1 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-11-20 23:12:51,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:12:52,055 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2021-11-20 23:12:52,056 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:12:52,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320525696] [2021-11-20 23:12:52,056 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:12:52,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [312946388] [2021-11-20 23:12:52,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [312946388] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:12:52,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1588239673] [2021-11-20 23:12:52,079 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2021-11-20 23:12:52,079 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 23:12:52,083 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 23:12:52,089 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 23:12:52,089 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 23:13:00,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:13:00,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:13:00,756 INFO L244 Elim1Store]: Index analysis took 625 ms [2021-11-20 23:13:42,829 WARN L227 SmtUtils]: Spent 41.98s 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) [2021-11-20 23:13:42,839 INFO L354 Elim1Store]: treesize reduction 4524, result has 34.2 percent of original size [2021-11-20 23:13:42,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 197 select indices, 197 select index equivalence classes, 19309 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 [2021-11-20 23:14:37,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:37,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:38,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:39,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:14:40,059 INFO L244 Elim1Store]: Index analysis took 2753 ms [2021-11-20 23:16:16,394 WARN L227 SmtUtils]: Spent 1.60m 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) [2021-11-20 23:16:16,399 INFO L354 Elim1Store]: treesize reduction 7470, result has 25.5 percent of original size [2021-11-20 23:16:16,403 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 [2021-11-20 23:16:55,466 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 197 [2021-11-20 23:16:55,655 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 197 [2021-11-20 23:16:56,341 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 197 [2021-11-20 23:16:58,446 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 22 [2021-11-20 23:16:58,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-20 23:16:58,625 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 [2021-11-20 23:16:58,660 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 [2021-11-20 23:16:58,668 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 [2021-11-20 23:16:58,688 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 [2021-11-20 23:17:03,660 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 [2021-11-20 23:17:03,669 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 [2021-11-20 23:17:03,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2021-11-20 23:17:03,775 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2021-11-20 23:17:09,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2021-11-20 23:17:09,796 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2021-11-20 23:25:08,817 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 11 treesize of output 7 [2021-11-20 23:25:08,990 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 15 treesize of output 1 [2021-11-20 23:25:09,099 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 11 treesize of output 7 [2021-11-20 23:25:09,218 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:25:09,249 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-20 23:25:09,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 22