./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92af11a1-a973-427b-b8de-619acd7fdfa9/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92af11a1-a973-427b-b8de-619acd7fdfa9/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92af11a1-a973-427b-b8de-619acd7fdfa9/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92af11a1-a973-427b-b8de-619acd7fdfa9/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92af11a1-a973-427b-b8de-619acd7fdfa9/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92af11a1-a973-427b-b8de-619acd7fdfa9/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 50333b6a17e96dff6400d2c6a85c0145ae494daf76266f6b6d6936a12a6b2527 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:17:40,887 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:17:40,889 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:17:40,918 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:17:40,919 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:17:40,923 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:17:40,926 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:17:40,930 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:17:40,932 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:17:40,937 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:17:40,939 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:17:40,941 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:17:40,942 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:17:40,945 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:17:40,947 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:17:40,951 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:17:40,953 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:17:40,954 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:17:40,955 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:17:40,962 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:17:40,964 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:17:40,966 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:17:40,967 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:17:40,968 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:17:40,979 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:17:40,979 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:17:40,980 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:17:40,980 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:17:40,981 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:17:40,982 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:17:40,983 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:17:40,984 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:17:40,984 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:17:40,985 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:17:40,986 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:17:40,987 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:17:40,987 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:17:40,988 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:17:40,988 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:17:40,989 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:17:40,990 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:17:40,991 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92af11a1-a973-427b-b8de-619acd7fdfa9/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-26 00:17:41,013 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:17:41,014 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:17:41,014 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:17:41,014 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:17:41,015 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:17:41,015 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:17:41,016 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:17:41,016 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:17:41,016 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:17:41,017 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:17:41,017 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:17:41,017 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:17:41,017 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:17:41,018 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:17:41,018 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:17:41,018 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:17:41,019 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:17:41,019 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:17:41,020 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:17:41,020 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:17:41,020 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:17:41,020 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:17:41,021 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:17:41,021 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:17:41,021 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:17:41,021 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:17:41,022 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:17:41,022 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:17:41,022 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:17:41,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:17:41,023 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:17:41,023 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:17:41,024 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:17:41,024 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:17:41,024 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:17:41,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:17:41,025 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:17:41,025 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:17:41,025 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92af11a1-a973-427b-b8de-619acd7fdfa9/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92af11a1-a973-427b-b8de-619acd7fdfa9/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50333b6a17e96dff6400d2c6a85c0145ae494daf76266f6b6d6936a12a6b2527 [2022-11-26 00:17:41,325 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:17:41,363 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:17:41,366 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:17:41,367 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:17:41,368 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:17:41,370 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92af11a1-a973-427b-b8de-619acd7fdfa9/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i [2022-11-26 00:17:44,401 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:17:45,049 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:17:45,049 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92af11a1-a973-427b-b8de-619acd7fdfa9/sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i [2022-11-26 00:17:45,095 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92af11a1-a973-427b-b8de-619acd7fdfa9/bin/utaipan-ByfvJB40ur/data/e0a7b8b16/a7fd672dc56e4398814763fd27ba719b/FLAG2fd85d2e0 [2022-11-26 00:17:45,115 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92af11a1-a973-427b-b8de-619acd7fdfa9/bin/utaipan-ByfvJB40ur/data/e0a7b8b16/a7fd672dc56e4398814763fd27ba719b [2022-11-26 00:17:45,120 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:17:45,121 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:17:45,127 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:17:45,127 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:17:45,131 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:17:45,132 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:17:45" (1/1) ... [2022-11-26 00:17:45,133 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76ea6874 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:17:45, skipping insertion in model container [2022-11-26 00:17:45,133 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:17:45" (1/1) ... [2022-11-26 00:17:45,141 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:17:45,273 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:17:45,617 WARN L237 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_92af11a1-a973-427b-b8de-619acd7fdfa9/sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i[4493,4506] [2022-11-26 00:17:45,627 WARN L237 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_92af11a1-a973-427b-b8de-619acd7fdfa9/sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i[4553,4566] [2022-11-26 00:17:46,846 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:46,847 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:46,848 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:46,849 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:46,850 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:46,863 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:46,866 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:46,868 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:46,869 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:46,871 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:46,873 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:46,874 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:46,875 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:46,963 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:17:46,964 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:17:46,965 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:17:46,971 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-26 00:17:46,973 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-26 00:17:46,974 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-26 00:17:47,321 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-26 00:17:47,323 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-26 00:17:47,324 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-26 00:17:47,325 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-26 00:17:47,327 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-26 00:17:47,329 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-26 00:17:47,329 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-26 00:17:47,330 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-26 00:17:47,331 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-26 00:17:47,332 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-26 00:17:47,333 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-26 00:17:47,604 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-26 00:17:47,667 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:17:47,928 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:47,928 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:47,950 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:47,951 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:47,959 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:47,960 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:47,974 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:47,975 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:47,976 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:47,976 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:47,977 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:47,977 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:47,978 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:48,012 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:17:48,041 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:17:48,054 WARN L237 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_92af11a1-a973-427b-b8de-619acd7fdfa9/sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i[4493,4506] [2022-11-26 00:17:48,055 WARN L237 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_92af11a1-a973-427b-b8de-619acd7fdfa9/sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i[4553,4566] [2022-11-26 00:17:48,087 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:48,088 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:48,088 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:48,089 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:48,089 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:48,096 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:48,096 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:48,097 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:48,098 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:48,100 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:48,103 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:48,103 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:48,104 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:48,110 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:17:48,111 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:17:48,112 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:17:48,117 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-26 00:17:48,119 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-26 00:17:48,120 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-26 00:17:48,154 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-26 00:17:48,156 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-26 00:17:48,163 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-26 00:17:48,167 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-26 00:17:48,169 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-26 00:17:48,171 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-26 00:17:48,172 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-26 00:17:48,172 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-26 00:17:48,173 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-26 00:17:48,173 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-26 00:17:48,174 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-26 00:17:48,209 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-26 00:17:48,243 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:17:48,354 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:48,355 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:48,365 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:48,369 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:48,373 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:48,373 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:48,391 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:48,391 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:48,393 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:48,393 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:48,393 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:48,395 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:48,395 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:17:48,419 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:17:48,766 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:17:48,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:17:48 WrapperNode [2022-11-26 00:17:48,767 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:17:48,769 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:17:48,769 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:17:48,769 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:17:48,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:17:48" (1/1) ... [2022-11-26 00:17:48,892 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:17:48" (1/1) ... [2022-11-26 00:17:48,970 INFO L138 Inliner]: procedures = 774, calls = 2440, calls flagged for inlining = 66, calls inlined = 9, statements flattened = 598 [2022-11-26 00:17:48,977 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:17:48,978 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:17:48,978 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:17:48,978 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:17:48,988 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:17:48" (1/1) ... [2022-11-26 00:17:48,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:17:48" (1/1) ... [2022-11-26 00:17:49,001 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:17:48" (1/1) ... [2022-11-26 00:17:49,002 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:17:48" (1/1) ... [2022-11-26 00:17:49,055 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:17:48" (1/1) ... [2022-11-26 00:17:49,057 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:17:48" (1/1) ... [2022-11-26 00:17:49,075 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:17:48" (1/1) ... [2022-11-26 00:17:49,079 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:17:48" (1/1) ... [2022-11-26 00:17:49,087 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:17:49,087 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:17:49,088 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:17:49,088 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:17:49,099 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:17:48" (1/1) ... [2022-11-26 00:17:49,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:17:49,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92af11a1-a973-427b-b8de-619acd7fdfa9/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:17:49,140 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92af11a1-a973-427b-b8de-619acd7fdfa9/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:17:49,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92af11a1-a973-427b-b8de-619acd7fdfa9/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:17:49,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-26 00:17:49,190 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_hash_table [2022-11-26 00:17:49,190 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_hash_table [2022-11-26 00:17:49,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:17:49,191 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-26 00:17:49,191 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-26 00:17:49,191 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-26 00:17:49,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-26 00:17:49,192 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2022-11-26 00:17:49,192 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2022-11-26 00:17:49,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:17:49,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:17:49,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 00:17:49,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:17:49,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:17:49,193 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-26 00:17:49,193 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-26 00:17:49,194 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-26 00:17:49,194 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-26 00:17:49,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:17:49,197 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2022-11-26 00:17:49,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2022-11-26 00:17:49,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 00:17:49,198 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-26 00:17:49,198 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-26 00:17:49,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:17:49,200 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2022-11-26 00:17:49,200 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2022-11-26 00:17:49,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:17:49,205 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2022-11-26 00:17:49,205 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2022-11-26 00:17:49,205 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-26 00:17:49,206 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-26 00:17:49,206 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2022-11-26 00:17:49,206 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2022-11-26 00:17:49,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-26 00:17:49,206 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_allocated_hash_table [2022-11-26 00:17:49,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_allocated_hash_table [2022-11-26 00:17:49,206 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-26 00:17:49,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-26 00:17:49,207 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2022-11-26 00:17:49,207 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2022-11-26 00:17:49,207 INFO L130 BoogieDeclarations]: Found specification of procedure check_hash_table_unchanged [2022-11-26 00:17:49,207 INFO L138 BoogieDeclarations]: Found implementation of procedure check_hash_table_unchanged [2022-11-26 00:17:49,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:17:49,631 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:17:49,634 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:17:50,730 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:17:50,876 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:17:50,877 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:17:50,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:17:50 BoogieIcfgContainer [2022-11-26 00:17:50,879 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:17:50,882 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:17:50,882 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:17:50,886 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:17:50,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:17:45" (1/3) ... [2022-11-26 00:17:50,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cc288fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:17:50, skipping insertion in model container [2022-11-26 00:17:50,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:17:48" (2/3) ... [2022-11-26 00:17:50,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cc288fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:17:50, skipping insertion in model container [2022-11-26 00:17:50,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:17:50" (3/3) ... [2022-11-26 00:17:50,891 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_hash_table_swap_harness.i [2022-11-26 00:17:50,911 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:17:50,912 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 00:17:50,979 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:17:50,986 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2a6cd398, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:17:50,986 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-26 00:17:50,991 INFO L276 IsEmpty]: Start isEmpty. Operand has 112 states, 59 states have (on average 1.2033898305084745) internal successors, (71), 64 states have internal predecessors, (71), 35 states have call successors, (35), 16 states have call predecessors, (35), 16 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2022-11-26 00:17:51,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-26 00:17:51,003 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:17:51,003 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:17:51,004 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:17:51,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:17:51,012 INFO L85 PathProgramCache]: Analyzing trace with hash 2033396556, now seen corresponding path program 1 times [2022-11-26 00:17:51,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:17:51,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660621383] [2022-11-26 00:17:51,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:17:51,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:17:51,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:17:51,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:17:51,758 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:17:51,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660621383] [2022-11-26 00:17:51,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660621383] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:17:51,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:17:51,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:17:51,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343844423] [2022-11-26 00:17:51,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:17:51,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:17:51,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:17:51,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:17:51,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:17:51,801 INFO L87 Difference]: Start difference. First operand has 112 states, 59 states have (on average 1.2033898305084745) internal successors, (71), 64 states have internal predecessors, (71), 35 states have call successors, (35), 16 states have call predecessors, (35), 16 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:17:52,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:17:52,342 INFO L93 Difference]: Finished difference Result 164 states and 217 transitions. [2022-11-26 00:17:52,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:17:52,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2022-11-26 00:17:52,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:17:52,358 INFO L225 Difference]: With dead ends: 164 [2022-11-26 00:17:52,358 INFO L226 Difference]: Without dead ends: 125 [2022-11-26 00:17:52,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:17:52,371 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 7 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:17:52,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 245 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-26 00:17:52,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2022-11-26 00:17:52,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 120. [2022-11-26 00:17:52,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 63 states have (on average 1.1746031746031746) internal successors, (74), 67 states have internal predecessors, (74), 40 states have call successors, (40), 16 states have call predecessors, (40), 16 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2022-11-26 00:17:52,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 153 transitions. [2022-11-26 00:17:52,453 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 153 transitions. Word has length 18 [2022-11-26 00:17:52,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:17:52,454 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 153 transitions. [2022-11-26 00:17:52,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:17:52,454 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 153 transitions. [2022-11-26 00:17:52,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-26 00:17:52,456 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:17:52,456 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:17:52,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:17:52,456 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:17:52,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:17:52,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1073144067, now seen corresponding path program 1 times [2022-11-26 00:17:52,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:17:52,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421464948] [2022-11-26 00:17:52,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:17:52,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:17:52,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:17:52,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:17:52,825 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:17:52,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421464948] [2022-11-26 00:17:52,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421464948] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:17:52,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:17:52,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:17:52,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106875347] [2022-11-26 00:17:52,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:17:52,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:17:52,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:17:52,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:17:52,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:17:52,830 INFO L87 Difference]: Start difference. First operand 120 states and 153 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:17:53,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:17:53,302 INFO L93 Difference]: Finished difference Result 161 states and 202 transitions. [2022-11-26 00:17:53,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:17:53,303 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19 [2022-11-26 00:17:53,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:17:53,305 INFO L225 Difference]: With dead ends: 161 [2022-11-26 00:17:53,305 INFO L226 Difference]: Without dead ends: 128 [2022-11-26 00:17:53,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:17:53,307 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 2 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:17:53,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 239 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-26 00:17:53,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2022-11-26 00:17:53,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2022-11-26 00:17:53,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 67 states have (on average 1.1492537313432836) internal successors, (77), 70 states have internal predecessors, (77), 44 states have call successors, (44), 16 states have call predecessors, (44), 16 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2022-11-26 00:17:53,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 163 transitions. [2022-11-26 00:17:53,326 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 163 transitions. Word has length 19 [2022-11-26 00:17:53,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:17:53,327 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 163 transitions. [2022-11-26 00:17:53,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:17:53,327 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 163 transitions. [2022-11-26 00:17:53,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-26 00:17:53,331 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:17:53,332 INFO L195 NwaCegarLoop]: trace histogram [7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:17:53,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:17:53,332 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:17:53,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:17:53,333 INFO L85 PathProgramCache]: Analyzing trace with hash -19964286, now seen corresponding path program 1 times [2022-11-26 00:17:53,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:17:53,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504277162] [2022-11-26 00:17:53,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:17:53,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:17:53,485 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:17:53,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1937924152] [2022-11-26 00:17:53,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:17:53,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:17:53,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92af11a1-a973-427b-b8de-619acd7fdfa9/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:17:53,490 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92af11a1-a973-427b-b8de-619acd7fdfa9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:17:53,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92af11a1-a973-427b-b8de-619acd7fdfa9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:17:54,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:17:54,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 2443 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-26 00:17:54,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:17:54,376 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-26 00:17:54,377 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:17:54,378 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:17:54,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504277162] [2022-11-26 00:17:54,381 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:17:54,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937924152] [2022-11-26 00:17:54,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1937924152] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:17:54,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:17:54,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:17:54,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393728369] [2022-11-26 00:17:54,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:17:54,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:17:54,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:17:54,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:17:54,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:17:54,386 INFO L87 Difference]: Start difference. First operand 128 states and 163 transitions. Second operand has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-26 00:17:55,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:17:55,103 INFO L93 Difference]: Finished difference Result 255 states and 331 transitions. [2022-11-26 00:17:55,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:17:55,104 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 96 [2022-11-26 00:17:55,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:17:55,106 INFO L225 Difference]: With dead ends: 255 [2022-11-26 00:17:55,106 INFO L226 Difference]: Without dead ends: 132 [2022-11-26 00:17:55,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:17:55,109 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 1 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:17:55,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 463 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-26 00:17:55,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-11-26 00:17:55,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2022-11-26 00:17:55,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 70 states have (on average 1.1428571428571428) internal successors, (80), 73 states have internal predecessors, (80), 44 states have call successors, (44), 16 states have call predecessors, (44), 17 states have return successors, (43), 43 states have call predecessors, (43), 42 states have call successors, (43) [2022-11-26 00:17:55,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 167 transitions. [2022-11-26 00:17:55,136 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 167 transitions. Word has length 96 [2022-11-26 00:17:55,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:17:55,146 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 167 transitions. [2022-11-26 00:17:55,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-26 00:17:55,147 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 167 transitions. [2022-11-26 00:17:55,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-26 00:17:55,150 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:17:55,150 INFO L195 NwaCegarLoop]: trace histogram [7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:17:55,179 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92af11a1-a973-427b-b8de-619acd7fdfa9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-26 00:17:55,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92af11a1-a973-427b-b8de-619acd7fdfa9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:17:55,360 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:17:55,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:17:55,361 INFO L85 PathProgramCache]: Analyzing trace with hash -882981322, now seen corresponding path program 1 times [2022-11-26 00:17:55,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:17:55,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730661398] [2022-11-26 00:17:55,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:17:55,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:17:55,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:17:57,659 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-26 00:17:57,659 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:17:57,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730661398] [2022-11-26 00:17:57,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730661398] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:17:57,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1040114169] [2022-11-26 00:17:57,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:17:57,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:17:57,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92af11a1-a973-427b-b8de-619acd7fdfa9/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:17:57,662 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92af11a1-a973-427b-b8de-619acd7fdfa9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:17:57,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92af11a1-a973-427b-b8de-619acd7fdfa9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 00:17:58,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:17:58,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 2447 conjuncts, 39 conjunts are in the unsatisfiable core [2022-11-26 00:17:58,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:17:58,446 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:17:59,008 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-26 00:17:59,009 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:17:59,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1040114169] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:17:59,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:17:59,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [10] total 15 [2022-11-26 00:17:59,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146942547] [2022-11-26 00:17:59,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:17:59,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:17:59,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:17:59,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:17:59,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-11-26 00:17:59,013 INFO L87 Difference]: Start difference. First operand 132 states and 167 transitions. Second operand has 11 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 5 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) [2022-11-26 00:18:03,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:18:05,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:18:07,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:18:09,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:18:11,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:18:13,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:18:15,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:18:18,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:18:20,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:18:22,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:18:24,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:18:26,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:18:28,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:18:28,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:28,587 INFO L93 Difference]: Finished difference Result 328 states and 409 transitions. [2022-11-26 00:18:28,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-26 00:18:28,588 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 5 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) Word has length 103 [2022-11-26 00:18:28,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:28,591 INFO L225 Difference]: With dead ends: 328 [2022-11-26 00:18:28,592 INFO L226 Difference]: Without dead ends: 208 [2022-11-26 00:18:28,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2022-11-26 00:18:28,594 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 92 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 24 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 982 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:28,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 982 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 528 Invalid, 13 Unknown, 0 Unchecked, 29.3s Time] [2022-11-26 00:18:28,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-11-26 00:18:28,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 206. [2022-11-26 00:18:28,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 111 states have (on average 1.1441441441441442) internal successors, (127), 115 states have internal predecessors, (127), 64 states have call successors, (64), 30 states have call predecessors, (64), 30 states have return successors, (68), 61 states have call predecessors, (68), 62 states have call successors, (68) [2022-11-26 00:18:28,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 259 transitions. [2022-11-26 00:18:28,651 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 259 transitions. Word has length 103 [2022-11-26 00:18:28,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:28,654 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 259 transitions. [2022-11-26 00:18:28,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 5 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) [2022-11-26 00:18:28,654 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 259 transitions. [2022-11-26 00:18:28,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-26 00:18:28,665 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:28,667 INFO L195 NwaCegarLoop]: trace histogram [7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:18:28,678 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92af11a1-a973-427b-b8de-619acd7fdfa9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-26 00:18:28,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92af11a1-a973-427b-b8de-619acd7fdfa9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:18:28,876 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:18:28,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:28,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1169025982, now seen corresponding path program 1 times [2022-11-26 00:18:28,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:18:28,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514903798] [2022-11-26 00:18:28,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:28,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:18:28,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:18:30,219 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-26 00:18:30,219 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:18:30,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514903798] [2022-11-26 00:18:30,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514903798] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:18:30,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375491674] [2022-11-26 00:18:30,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:30,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:18:30,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92af11a1-a973-427b-b8de-619acd7fdfa9/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:18:30,222 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92af11a1-a973-427b-b8de-619acd7fdfa9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:18:30,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92af11a1-a973-427b-b8de-619acd7fdfa9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-26 00:18:30,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:18:30,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 2471 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-26 00:18:30,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:18:30,974 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:18:31,380 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-26 00:18:31,380 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:18:31,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1375491674] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:18:31,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:18:31,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [8] total 20 [2022-11-26 00:18:31,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349341633] [2022-11-26 00:18:31,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:18:31,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:18:31,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:18:31,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:18:31,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2022-11-26 00:18:31,385 INFO L87 Difference]: Start difference. First operand 206 states and 259 transitions. Second operand has 14 states, 10 states have (on average 5.7) internal successors, (57), 11 states have internal predecessors, (57), 6 states have call successors, (24), 3 states have call predecessors, (24), 6 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) [2022-11-26 00:18:36,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:18:38,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:18:40,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:18:42,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:18:44,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:18:46,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:18:49,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:18:51,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:18:53,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:18:55,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:18:57,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:18:59,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:19:01,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:19:03,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:19:05,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:19:05,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:19:05,693 INFO L93 Difference]: Finished difference Result 451 states and 567 transitions. [2022-11-26 00:19:05,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-26 00:19:05,694 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 10 states have (on average 5.7) internal successors, (57), 11 states have internal predecessors, (57), 6 states have call successors, (24), 3 states have call predecessors, (24), 6 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) Word has length 109 [2022-11-26 00:19:05,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:19:05,698 INFO L225 Difference]: With dead ends: 451 [2022-11-26 00:19:05,698 INFO L226 Difference]: Without dead ends: 266 [2022-11-26 00:19:05,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=89, Invalid=667, Unknown=0, NotChecked=0, Total=756 [2022-11-26 00:19:05,705 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 94 mSDsluCounter, 750 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 28 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 883 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:19:05,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 883 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 709 Invalid, 15 Unknown, 0 Unchecked, 34.0s Time] [2022-11-26 00:19:05,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-11-26 00:19:05,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 261. [2022-11-26 00:19:05,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 140 states have (on average 1.1428571428571428) internal successors, (160), 146 states have internal predecessors, (160), 81 states have call successors, (81), 40 states have call predecessors, (81), 39 states have return successors, (91), 75 states have call predecessors, (91), 79 states have call successors, (91) [2022-11-26 00:19:05,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 332 transitions. [2022-11-26 00:19:05,767 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 332 transitions. Word has length 109 [2022-11-26 00:19:05,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:19:05,768 INFO L495 AbstractCegarLoop]: Abstraction has 261 states and 332 transitions. [2022-11-26 00:19:05,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 10 states have (on average 5.7) internal successors, (57), 11 states have internal predecessors, (57), 6 states have call successors, (24), 3 states have call predecessors, (24), 6 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) [2022-11-26 00:19:05,768 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 332 transitions. [2022-11-26 00:19:05,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-26 00:19:05,776 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:19:05,777 INFO L195 NwaCegarLoop]: trace histogram [7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:19:05,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92af11a1-a973-427b-b8de-619acd7fdfa9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-26 00:19:05,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92af11a1-a973-427b-b8de-619acd7fdfa9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:19:05,987 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:19:05,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:19:05,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1005422526, now seen corresponding path program 1 times [2022-11-26 00:19:05,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:19:05,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268619306] [2022-11-26 00:19:05,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:05,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:19:06,074 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:19:06,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [414364925] [2022-11-26 00:19:06,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:06,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:19:06,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92af11a1-a973-427b-b8de-619acd7fdfa9/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:19:06,076 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92af11a1-a973-427b-b8de-619acd7fdfa9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:19:06,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92af11a1-a973-427b-b8de-619acd7fdfa9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-26 00:19:06,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:06,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 2549 conjuncts, 39 conjunts are in the unsatisfiable core [2022-11-26 00:19:06,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:19:06,770 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:19:07,175 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-26 00:19:07,175 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:19:07,175 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:19:07,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268619306] [2022-11-26 00:19:07,175 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:19:07,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414364925] [2022-11-26 00:19:07,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [414364925] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:19:07,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:19:07,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-26 00:19:07,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783149959] [2022-11-26 00:19:07,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:19:07,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:19:07,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:19:07,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:19:07,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:19:07,178 INFO L87 Difference]: Start difference. First operand 261 states and 332 transitions. Second operand has 11 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 5 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2022-11-26 00:19:11,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:19:13,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:19:15,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:19:17,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:19:19,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:19:21,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:19:23,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:19:25,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:19:27,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:19:29,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:19:31,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:19:33,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:19:35,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:19:38,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:19:40,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:19:42,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:19:44,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:19:44,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:19:44,566 INFO L93 Difference]: Finished difference Result 471 states and 583 transitions. [2022-11-26 00:19:44,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-26 00:19:44,567 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 5 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) Word has length 109 [2022-11-26 00:19:44,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:19:44,570 INFO L225 Difference]: With dead ends: 471 [2022-11-26 00:19:44,570 INFO L226 Difference]: Without dead ends: 378 [2022-11-26 00:19:44,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2022-11-26 00:19:44,572 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 89 mSDsluCounter, 947 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 24 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 1098 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:19:44,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 1098 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 571 Invalid, 17 Unknown, 0 Unchecked, 37.2s Time] [2022-11-26 00:19:44,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2022-11-26 00:19:44,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 375. [2022-11-26 00:19:44,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 203 states have (on average 1.1379310344827587) internal successors, (231), 210 states have internal predecessors, (231), 109 states have call successors, (109), 63 states have call predecessors, (109), 62 states have return successors, (128), 102 states have call predecessors, (128), 107 states have call successors, (128) [2022-11-26 00:19:44,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 468 transitions. [2022-11-26 00:19:44,623 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 468 transitions. Word has length 109 [2022-11-26 00:19:44,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:19:44,624 INFO L495 AbstractCegarLoop]: Abstraction has 375 states and 468 transitions. [2022-11-26 00:19:44,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 5 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2022-11-26 00:19:44,625 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 468 transitions. [2022-11-26 00:19:44,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-26 00:19:44,627 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:19:44,627 INFO L195 NwaCegarLoop]: trace histogram [7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:19:44,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92af11a1-a973-427b-b8de-619acd7fdfa9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-26 00:19:44,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92af11a1-a973-427b-b8de-619acd7fdfa9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-26 00:19:44,837 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:19:44,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:19:44,837 INFO L85 PathProgramCache]: Analyzing trace with hash -525855814, now seen corresponding path program 1 times [2022-11-26 00:19:44,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:19:44,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609890402] [2022-11-26 00:19:44,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:44,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:19:44,940 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:19:44,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2106361684] [2022-11-26 00:19:44,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:44,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:19:44,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92af11a1-a973-427b-b8de-619acd7fdfa9/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:19:44,942 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92af11a1-a973-427b-b8de-619acd7fdfa9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:19:44,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92af11a1-a973-427b-b8de-619acd7fdfa9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-26 00:19:45,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:45,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 2573 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-26 00:19:45,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:19:45,716 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:19:45,982 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-26 00:19:45,982 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:19:45,982 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:19:45,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609890402] [2022-11-26 00:19:45,982 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:19:45,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2106361684] [2022-11-26 00:19:45,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2106361684] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:19:45,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:19:45,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-26 00:19:45,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770066887] [2022-11-26 00:19:45,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:19:45,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:19:45,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:19:45,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:19:45,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:19:45,986 INFO L87 Difference]: Start difference. First operand 375 states and 468 transitions. Second operand has 14 states, 10 states have (on average 6.1) internal successors, (61), 11 states have internal predecessors, (61), 6 states have call successors, (25), 3 states have call predecessors, (25), 6 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) [2022-11-26 00:19:49,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:19:54,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:19:56,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:19:58,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:20:00,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:20:02,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:20:04,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:20:06,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:20:08,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:20:10,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:20:12,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:20:14,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:20:16,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:20:19,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:20:21,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:20:23,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:20:23,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:20:23,699 INFO L93 Difference]: Finished difference Result 501 states and 618 transitions. [2022-11-26 00:20:23,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-26 00:20:23,699 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 10 states have (on average 6.1) internal successors, (61), 11 states have internal predecessors, (61), 6 states have call successors, (25), 3 states have call predecessors, (25), 6 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) Word has length 115 [2022-11-26 00:20:23,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:20:23,702 INFO L225 Difference]: With dead ends: 501 [2022-11-26 00:20:23,702 INFO L226 Difference]: Without dead ends: 378 [2022-11-26 00:20:23,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=427, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:20:23,704 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 87 mSDsluCounter, 1160 mSDsCounter, 0 mSdLazyCounter, 864 mSolverCounterSat, 28 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 1308 SdHoareTripleChecker+Invalid, 907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 864 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:20:23,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 1308 Invalid, 907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 864 Invalid, 15 Unknown, 0 Unchecked, 37.4s Time] [2022-11-26 00:20:23,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2022-11-26 00:20:23,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 375. [2022-11-26 00:20:23,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 203 states have (on average 1.1330049261083743) internal successors, (230), 210 states have internal predecessors, (230), 109 states have call successors, (109), 63 states have call predecessors, (109), 62 states have return successors, (128), 102 states have call predecessors, (128), 107 states have call successors, (128) [2022-11-26 00:20:23,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 467 transitions. [2022-11-26 00:20:23,747 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 467 transitions. Word has length 115 [2022-11-26 00:20:23,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:20:23,748 INFO L495 AbstractCegarLoop]: Abstraction has 375 states and 467 transitions. [2022-11-26 00:20:23,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 10 states have (on average 6.1) internal successors, (61), 11 states have internal predecessors, (61), 6 states have call successors, (25), 3 states have call predecessors, (25), 6 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) [2022-11-26 00:20:23,748 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 467 transitions. [2022-11-26 00:20:23,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-26 00:20:23,750 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:20:23,751 INFO L195 NwaCegarLoop]: trace histogram [7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:20:23,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92af11a1-a973-427b-b8de-619acd7fdfa9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-26 00:20:23,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92af11a1-a973-427b-b8de-619acd7fdfa9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-26 00:20:23,961 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:20:23,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:20:23,961 INFO L85 PathProgramCache]: Analyzing trace with hash -392164161, now seen corresponding path program 1 times [2022-11-26 00:20:23,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:20:23,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928675065] [2022-11-26 00:20:23,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:20:23,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:20:24,056 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:20:24,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [410291021] [2022-11-26 00:20:24,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:20:24,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:20:24,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92af11a1-a973-427b-b8de-619acd7fdfa9/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:20:24,058 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92af11a1-a973-427b-b8de-619acd7fdfa9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:20:24,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92af11a1-a973-427b-b8de-619acd7fdfa9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-26 00:20:24,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:20:24,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 2602 conjuncts, 146 conjunts are in the unsatisfiable core [2022-11-26 00:20:24,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:20:24,907 INFO L321 Elim1Store]: treesize reduction 117, result has 12.0 percent of original size [2022-11-26 00:20:24,908 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 8 case distinctions, treesize of input 55 treesize of output 54 [2022-11-26 00:20:25,001 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-26 00:20:25,243 INFO L350 Elim1Store]: Elim1 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 12 treesize of output 9 [2022-11-26 00:20:25,556 INFO L321 Elim1Store]: treesize reduction 51, result has 35.4 percent of original size [2022-11-26 00:20:25,557 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 83 treesize of output 94 [2022-11-26 00:20:25,872 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:20:26,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:26,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:26,232 INFO L321 Elim1Store]: treesize reduction 232, result has 28.6 percent of original size [2022-11-26 00:20:26,233 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 16 case distinctions, treesize of input 103 treesize of output 165 [2022-11-26 00:20:27,486 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_1160 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_1160))) is different from true [2022-11-26 00:20:27,620 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_1161 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_aws_add_size_checked_#in~r#1.base| v_ArrVal_1161))) is different from true [2022-11-26 00:20:27,897 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-26 00:20:27,897 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 9 treesize of output 15 [2022-11-26 00:20:27,921 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-26 00:20:27,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2022-11-26 00:20:27,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:27,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:28,013 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-26 00:20:28,013 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 40 [2022-11-26 00:20:28,071 INFO L321 Elim1Store]: treesize reduction 21, result has 48.8 percent of original size [2022-11-26 00:20:28,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 34 treesize of output 45 [2022-11-26 00:20:30,308 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_hash_table_swap_~b#1.base_BEFORE_CALL_1| Int)) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_hash_table_swap_~b#1.base_BEFORE_CALL_1|) 0))) (and (<= (+ 2 .cse0) |v_ULTIMATE.start_aws_hash_table_swap_~b#1.base_BEFORE_CALL_1|) (<= 2 |v_ULTIMATE.start_aws_hash_table_swap_~b#1.base_BEFORE_CALL_1|) (not (= .cse0 0))))) is different from true [2022-11-26 00:20:30,437 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 35 [2022-11-26 00:20:30,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 38 [2022-11-26 00:20:30,446 INFO L350 Elim1Store]: Elim1 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 23 treesize of output 17 [2022-11-26 00:20:32,527 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_hash_table_swap_harness_~#a~5#1.base_BEFORE_CALL_9| Int)) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_hash_table_swap_harness_~#a~5#1.base_BEFORE_CALL_9|) 0))) (and (<= (+ 2 .cse0) |v_ULTIMATE.start_aws_hash_table_swap_harness_~#a~5#1.base_BEFORE_CALL_9|) (not (= .cse0 0)) (<= 2 |v_ULTIMATE.start_aws_hash_table_swap_harness_~#a~5#1.base_BEFORE_CALL_9|)))) is different from true [2022-11-26 00:20:37,190 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 2 proven. 34 refuted. 0 times theorem prover too weak. 12 trivial. 13 not checked. [2022-11-26 00:20:37,190 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:20:37,576 INFO L350 Elim1Store]: Elim1 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 10 treesize of output 6 [2022-11-26 00:20:37,922 INFO L350 Elim1Store]: Elim1 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 38 treesize of output 34 [2022-11-26 00:20:38,081 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:20:38,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928675065] [2022-11-26 00:20:38,082 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:20:38,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [410291021] [2022-11-26 00:20:38,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [410291021] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:20:38,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1867042303] [2022-11-26 00:20:38,107 INFO L159 IcfgInterpreter]: Started Sifa with 89 locations of interest [2022-11-26 00:20:38,107 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:20:38,113 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:20:38,119 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:20:38,119 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:20:41,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:41,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:41,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:41,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:42,212 INFO L217 Elim1Store]: Index analysis took 1297 ms [2022-11-26 00:23:05,352 WARN L233 SmtUtils]: Spent 2.38m on a formula simplification. DAG size of input: 3740 DAG size of output: 1771 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-26 00:23:05,368 INFO L321 Elim1Store]: treesize reduction 11395, result has 23.7 percent of original size [2022-11-26 00:23:05,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 196 select indices, 196 select index equivalence classes, 19118 disjoint index pairs (out of 19110 index pairs), introduced 196 new quantified variables, introduced 198 case distinctions, treesize of input 996 treesize of output 4132 [2022-11-26 00:23:11,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:14,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:16,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:16,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:19,203 INFO L217 Elim1Store]: Index analysis took 8672 ms [2022-11-26 00:27:30,566 WARN L233 SmtUtils]: Spent 4.19m on a formula simplification. DAG size of input: 5120 DAG size of output: 2353 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-26 00:27:30,572 INFO L321 Elim1Store]: treesize reduction 17106, result has 19.4 percent of original size [2022-11-26 00:27:30,578 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 201 select indices, 201 select index equivalence classes, 19314 disjoint index pairs (out of 20100 index pairs), introduced 201 new quantified variables, introduced 987 case distinctions, treesize of input 1045 treesize of output 4753 [2022-11-26 00:28:29,239 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:28:29,246 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:28:29,275 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:28:29,280 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:28:29,302 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:28:29,307 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:28:29,349 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:28:29,355 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:28:29,363 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:28:29,373 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:28:29,530 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:28:29,539 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:28:29,578 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:28:29,584 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:28:29,610 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:28:29,630 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:28:29,635 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:28:29,670 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:28:29,676 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:28:29,683 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:28:29,692 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:28:29,713 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:28:29,731 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:28:29,750 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-26 00:28:29,751 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:28:29,793 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:28:29,801 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:28:29,829 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:28:29,837 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:28:29,875 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:28:29,881 INFO L350 Elim1Store]: Elim1 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 8 treesize of output 7 [2022-11-26 00:28:29,924 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-26 00:28:29,925 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 27 [2022-11-26 00:28:29,958 INFO L321 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-11-26 00:28:29,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 19 [2022-11-26 00:28:29,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:30,025 INFO L321 Elim1Store]: treesize reduction 44, result has 44.3 percent of original size [2022-11-26 00:28:30,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 60 [2022-11-26 00:28:30,058 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-26 00:28:30,058 INFO L350 Elim1Store]: Elim1 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 18 [2022-11-26 00:28:30,127 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-26 00:28:30,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 27 [2022-11-26 00:28:40,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:40,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:40,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:40,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:40,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 200 select indices, 200 select index equivalence classes, 19904 disjoint index pairs (out of 19900 index pairs), introduced 200 new quantified variables, introduced 0 case distinctions, treesize of input 1001 treesize of output 601 [2022-11-26 00:28:42,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:42,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:42,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:42,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:42,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:42,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:42,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:42,616 INFO L217 Elim1Store]: Index analysis took 130 ms [2022-11-26 00:28:42,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 193 select indices, 193 select index equivalence classes, 16855 disjoint index pairs (out of 18528 index pairs), introduced 193 new quantified variables, introduced 0 case distinctions, treesize of input 1736 treesize of output 580 [2022-11-26 00:28:43,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:43,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 53 select indices, 53 select index equivalence classes, 1045 disjoint index pairs (out of 1378 index pairs), introduced 53 new quantified variables, introduced 0 case distinctions, treesize of input 464 treesize of output 160 [2022-11-26 00:28:44,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:44,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:44,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:44,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:44,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:44,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:44,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:44,922 INFO L217 Elim1Store]: Index analysis took 132 ms [2022-11-26 00:28:44,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 193 select indices, 193 select index equivalence classes, 16855 disjoint index pairs (out of 18528 index pairs), introduced 193 new quantified variables, introduced 0 case distinctions, treesize of input 1736 treesize of output 580 [2022-11-26 00:28:47,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:47,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:47,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:47,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:28:47,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 201 select indices, 201 select index equivalence classes, 20100 disjoint index pairs (out of 20100 index pairs), introduced 201 new quantified variables, introduced 0 case distinctions, treesize of input 1006 treesize of output 604 [2022-11-26 00:29:21,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:21,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 53 select indices, 53 select index equivalence classes, 1045 disjoint index pairs (out of 1378 index pairs), introduced 53 new quantified variables, introduced 0 case distinctions, treesize of input 464 treesize of output 160 [2022-11-26 00:29:23,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:23,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:23,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:23,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:23,234 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 200 select indices, 200 select index equivalence classes, 19904 disjoint index pairs (out of 19900 index pairs), introduced 200 new quantified variables, introduced 0 case distinctions, treesize of input 1001 treesize of output 601 [2022-11-26 00:29:24,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:24,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:24,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:24,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:24,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:24,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:24,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:24,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 193 select indices, 193 select index equivalence classes, 16855 disjoint index pairs (out of 18528 index pairs), introduced 193 new quantified variables, introduced 0 case distinctions, treesize of input 1736 treesize of output 580 [2022-11-26 00:29:25,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:25,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:25,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:25,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:25,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:25,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:25,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:26,036 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 193 select indices, 193 select index equivalence classes, 16855 disjoint index pairs (out of 18528 index pairs), introduced 193 new quantified variables, introduced 0 case distinctions, treesize of input 1736 treesize of output 580 [2022-11-26 00:29:27,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:27,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:27,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:27,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:27,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 201 select indices, 201 select index equivalence classes, 20100 disjoint index pairs (out of 20100 index pairs), introduced 201 new quantified variables, introduced 0 case distinctions, treesize of input 1006 treesize of output 604 [2022-11-26 00:29:35,518 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:29:35,526 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:29:35,549 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:29:35,559 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:29:35,565 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:29:35,570 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:29:35,577 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:29:35,606 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:29:35,614 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:29:35,619 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:29:35,624 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:29:35,630 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:29:35,665 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:29:35,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:35,898 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 7 [2022-11-26 00:29:35,912 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:29:35,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:35,928 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:29:35,929 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:29:35,992 INFO L321 Elim1Store]: treesize reduction 88, result has 11.1 percent of original size [2022-11-26 00:29:35,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 100 treesize of output 82 [2022-11-26 00:29:36,005 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:29:36,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:36,024 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:29:36,025 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:29:36,082 INFO L321 Elim1Store]: treesize reduction 88, result has 11.1 percent of original size [2022-11-26 00:29:36,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 100 treesize of output 82 [2022-11-26 00:29:36,126 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-26 00:29:36,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 17 [2022-11-26 00:29:36,148 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:29:36,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:36,236 INFO L321 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-11-26 00:29:36,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 57 treesize of output 43 [2022-11-26 00:29:36,257 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 5 [2022-11-26 00:29:36,276 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:29:36,302 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:29:36,304 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2022-11-26 00:29:36,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:36,335 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 9 [2022-11-26 00:29:36,349 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:29:36,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:29:36,476 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 7 [2022-11-26 00:29:56,646 INFO L197 IcfgInterpreter]: Interpreting procedure ensure_allocated_hash_table with input of size 4034 for LOIs