./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_buf_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_df894666-363e-4714-88de-080e47637512/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df894666-363e-4714-88de-080e47637512/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df894666-363e-4714-88de-080e47637512/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df894666-363e-4714-88de-080e47637512/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_buf_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df894666-363e-4714-88de-080e47637512/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df894666-363e-4714-88de-080e47637512/bin/utaipan-g80aRyZoba --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 13ec24500153ff48401c44b6cbf6e64bbffda498093f21927cfcfb52ad2376ab --- 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-b5237d8 [2022-11-22 01:23:22,700 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:23:22,703 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:23:22,745 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:23:22,745 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:23:22,749 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:23:22,751 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:23:22,754 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:23:22,756 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:23:22,762 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:23:22,764 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:23:22,766 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:23:22,766 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:23:22,769 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:23:22,771 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:23:22,773 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:23:22,775 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:23:22,776 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:23:22,777 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:23:22,784 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:23:22,785 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:23:22,796 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:23:22,798 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:23:22,799 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:23:22,809 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:23:22,809 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:23:22,809 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:23:22,811 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:23:22,812 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:23:22,813 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:23:22,813 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:23:22,814 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:23:22,816 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:23:22,817 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:23:22,819 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:23:22,819 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:23:22,820 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:23:22,820 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:23:22,821 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:23:22,821 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:23:22,834 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:23:22,834 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df894666-363e-4714-88de-080e47637512/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:23:22,853 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:23:22,854 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:23:22,854 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:23:22,854 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:23:22,855 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:23:22,855 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:23:22,855 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:23:22,855 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:23:22,856 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:23:22,856 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:23:22,856 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:23:22,856 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:23:22,856 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:23:22,857 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:23:22,857 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:23:22,857 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:23:22,857 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:23:22,857 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:23:22,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:23:22,858 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:23:22,858 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:23:22,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:23:22,859 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:23:22,859 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:23:22,859 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:23:22,859 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:23:22,859 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:23:22,860 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:23:22,860 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:23:22,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:23:22,860 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:23:22,860 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:23:22,861 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:23:22,861 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:23:22,861 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:23:22,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:23:22,861 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:23:22,862 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:23:22,862 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_df894666-363e-4714-88de-080e47637512/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df894666-363e-4714-88de-080e47637512/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13ec24500153ff48401c44b6cbf6e64bbffda498093f21927cfcfb52ad2376ab [2022-11-22 01:23:23,107 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:23:23,154 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:23:23,158 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:23:23,172 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:23:23,172 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:23:23,174 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df894666-363e-4714-88de-080e47637512/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_buf_harness.i [2022-11-22 01:23:26,108 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:23:26,822 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:23:26,824 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df894666-363e-4714-88de-080e47637512/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_buf_harness.i [2022-11-22 01:23:26,863 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df894666-363e-4714-88de-080e47637512/bin/utaipan-g80aRyZoba/data/98fe355c8/280bb8c648ef4ebf8ff076acefdb2f38/FLAGd401a16e2 [2022-11-22 01:23:26,882 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df894666-363e-4714-88de-080e47637512/bin/utaipan-g80aRyZoba/data/98fe355c8/280bb8c648ef4ebf8ff076acefdb2f38 [2022-11-22 01:23:26,887 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:23:26,889 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:23:26,892 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:23:26,893 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:23:26,896 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:23:26,897 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:23:26" (1/1) ... [2022-11-22 01:23:26,898 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49004a35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:26, skipping insertion in model container [2022-11-22 01:23:26,899 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:23:26" (1/1) ... [2022-11-22 01:23:26,906 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:23:27,040 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:23:27,305 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_df894666-363e-4714-88de-080e47637512/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_buf_harness.i[4498,4511] [2022-11-22 01:23:27,313 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_df894666-363e-4714-88de-080e47637512/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_buf_harness.i[4558,4571] [2022-11-22 01:23:28,489 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:23:28,496 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:23:28,497 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:23:28,498 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:23:28,500 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:23:28,523 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:23:28,524 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:23:28,533 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:23:28,533 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:23:29,117 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-22 01:23:29,118 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-22 01:23:29,120 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-22 01:23:29,121 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-22 01:23:29,123 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-22 01:23:29,124 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-22 01:23:29,125 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-22 01:23:29,126 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-22 01:23:29,127 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-22 01:23:29,128 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-22 01:23:29,404 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-22 01:23:29,581 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:23:29,582 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:23:29,656 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:23:29,697 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:23:29,711 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_df894666-363e-4714-88de-080e47637512/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_buf_harness.i[4498,4511] [2022-11-22 01:23:29,711 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_df894666-363e-4714-88de-080e47637512/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_buf_harness.i[4558,4571] [2022-11-22 01:23:29,749 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:23:29,749 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:23:29,750 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:23:29,750 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:23:29,751 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:23:29,756 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:23:29,757 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:23:29,758 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:23:29,758 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:23:29,817 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-22 01:23:29,817 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-22 01:23:29,818 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-22 01:23:29,819 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-22 01:23:29,820 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-22 01:23:29,820 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-22 01:23:29,821 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-22 01:23:29,824 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-22 01:23:29,824 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-22 01:23:29,825 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-22 01:23:29,853 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-22 01:23:29,936 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:23:29,936 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:23:29,976 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:23:30,237 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:23:30,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:30 WrapperNode [2022-11-22 01:23:30,238 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:23:30,239 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:23:30,239 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:23:30,239 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:23:30,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:30" (1/1) ... [2022-11-22 01:23:30,354 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:30" (1/1) ... [2022-11-22 01:23:30,420 INFO L138 Inliner]: procedures = 690, calls = 2638, calls flagged for inlining = 61, calls inlined = 9, statements flattened = 867 [2022-11-22 01:23:30,420 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:23:30,421 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:23:30,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:23:30,421 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:23:30,444 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:30" (1/1) ... [2022-11-22 01:23:30,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:30" (1/1) ... [2022-11-22 01:23:30,452 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:30" (1/1) ... [2022-11-22 01:23:30,452 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:30" (1/1) ... [2022-11-22 01:23:30,507 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:30" (1/1) ... [2022-11-22 01:23:30,510 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:30" (1/1) ... [2022-11-22 01:23:30,555 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:30" (1/1) ... [2022-11-22 01:23:30,559 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:30" (1/1) ... [2022-11-22 01:23:30,568 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:23:30,583 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:23:30,583 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:23:30,584 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:23:30,584 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:30" (1/1) ... [2022-11-22 01:23:30,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:23:30,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df894666-363e-4714-88de-080e47637512/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:23:30,625 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df894666-363e-4714-88de-080e47637512/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:23:30,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df894666-363e-4714-88de-080e47637512/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:23:30,668 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2022-11-22 01:23:30,668 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2022-11-22 01:23:30,668 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2022-11-22 01:23:30,669 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2022-11-22 01:23:30,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:23:30,670 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-22 01:23:30,671 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-22 01:23:30,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:23:30,671 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-22 01:23:30,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-22 01:23:30,672 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_from_buf [2022-11-22 01:23:30,672 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_from_buf [2022-11-22 01:23:30,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:23:30,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:23:30,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:23:30,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:23:30,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:23:30,674 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-22 01:23:30,674 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-22 01:23:30,674 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-22 01:23:30,675 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-22 01:23:30,675 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-22 01:23:30,675 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-22 01:23:30,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:23:30,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:23:30,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:23:30,676 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-22 01:23:30,676 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-22 01:23:30,677 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-22 01:23:30,677 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-22 01:23:30,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:23:30,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:23:31,016 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:23:31,020 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:23:32,394 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:23:32,817 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:23:32,818 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 01:23:32,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:23:32 BoogieIcfgContainer [2022-11-22 01:23:32,821 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:23:32,825 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:23:32,825 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:23:32,828 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:23:32,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:23:26" (1/3) ... [2022-11-22 01:23:32,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fad2c69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:23:32, skipping insertion in model container [2022-11-22 01:23:32,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:30" (2/3) ... [2022-11-22 01:23:32,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fad2c69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:23:32, skipping insertion in model container [2022-11-22 01:23:32,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:23:32" (3/3) ... [2022-11-22 01:23:32,843 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_from_buf_harness.i [2022-11-22 01:23:32,864 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:23:32,865 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:23:32,934 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:23:32,946 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;@5af4af19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:23:32,947 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:23:32,951 INFO L276 IsEmpty]: Start isEmpty. Operand has 88 states, 48 states have (on average 1.1875) internal successors, (57), 49 states have internal predecessors, (57), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2022-11-22 01:23:32,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-22 01:23:32,961 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:23:32,962 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-11-22 01:23:32,962 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:23:32,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:23:32,971 INFO L85 PathProgramCache]: Analyzing trace with hash 2075530696, now seen corresponding path program 1 times [2022-11-22 01:23:32,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:23:32,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669867201] [2022-11-22 01:23:32,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:23:32,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:23:33,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:23:41,000 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-22 01:23:41,001 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:23:41,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669867201] [2022-11-22 01:23:41,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669867201] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:23:41,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:23:41,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-11-22 01:23:41,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587706045] [2022-11-22 01:23:41,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:23:41,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-22 01:23:41,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:23:41,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-22 01:23:41,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2022-11-22 01:23:41,063 INFO L87 Difference]: Start difference. First operand has 88 states, 48 states have (on average 1.1875) internal successors, (57), 49 states have internal predecessors, (57), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 16 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 8 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 7 states have call predecessors, (9), 6 states have call successors, (9) [2022-11-22 01:23:42,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:23:42,780 INFO L93 Difference]: Finished difference Result 191 states and 276 transitions. [2022-11-22 01:23:42,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-22 01:23:42,784 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 8 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 7 states have call predecessors, (9), 6 states have call successors, (9) Word has length 43 [2022-11-22 01:23:42,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:23:42,796 INFO L225 Difference]: With dead ends: 191 [2022-11-22 01:23:42,796 INFO L226 Difference]: Without dead ends: 128 [2022-11-22 01:23:42,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=82, Invalid=470, Unknown=0, NotChecked=0, Total=552 [2022-11-22 01:23:42,817 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 91 mSDsluCounter, 749 mSDsCounter, 0 mSdLazyCounter, 880 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 845 SdHoareTripleChecker+Invalid, 924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:23:42,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 845 Invalid, 924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 880 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-22 01:23:42,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2022-11-22 01:23:42,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 98. [2022-11-22 01:23:42,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 52 states have (on average 1.1153846153846154) internal successors, (58), 54 states have internal predecessors, (58), 33 states have call successors, (33), 12 states have call predecessors, (33), 12 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2022-11-22 01:23:42,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 123 transitions. [2022-11-22 01:23:42,902 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 123 transitions. Word has length 43 [2022-11-22 01:23:42,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:23:42,903 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 123 transitions. [2022-11-22 01:23:42,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 8 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 7 states have call predecessors, (9), 6 states have call successors, (9) [2022-11-22 01:23:42,903 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 123 transitions. [2022-11-22 01:23:42,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-22 01:23:42,905 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:23:42,906 INFO L195 NwaCegarLoop]: trace histogram [5, 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] [2022-11-22 01:23:42,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:23:42,906 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:23:42,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:23:42,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1091548635, now seen corresponding path program 1 times [2022-11-22 01:23:42,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:23:42,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847962236] [2022-11-22 01:23:42,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:23:42,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:23:44,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:23:52,655 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-22 01:23:52,655 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:23:52,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847962236] [2022-11-22 01:23:52,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847962236] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:23:52,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:23:52,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-22 01:23:52,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548464067] [2022-11-22 01:23:52,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:23:52,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-22 01:23:52,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:23:52,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-22 01:23:52,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-11-22 01:23:52,659 INFO L87 Difference]: Start difference. First operand 98 states and 123 transitions. Second operand has 19 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 10 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2022-11-22 01:23:54,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:23:54,809 INFO L93 Difference]: Finished difference Result 134 states and 173 transitions. [2022-11-22 01:23:54,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-22 01:23:54,810 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 10 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) Word has length 47 [2022-11-22 01:23:54,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:23:54,811 INFO L225 Difference]: With dead ends: 134 [2022-11-22 01:23:54,812 INFO L226 Difference]: Without dead ends: 132 [2022-11-22 01:23:54,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=112, Invalid=818, Unknown=0, NotChecked=0, Total=930 [2022-11-22 01:23:54,813 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 73 mSDsluCounter, 790 mSDsCounter, 0 mSdLazyCounter, 1746 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 896 SdHoareTripleChecker+Invalid, 1823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:23:54,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 896 Invalid, 1823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1746 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-22 01:23:54,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-11-22 01:23:54,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 88. [2022-11-22 01:23:54,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 48 states have (on average 1.125) internal successors, (54), 49 states have internal predecessors, (54), 28 states have call successors, (28), 11 states have call predecessors, (28), 11 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-11-22 01:23:54,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 109 transitions. [2022-11-22 01:23:54,838 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 109 transitions. Word has length 47 [2022-11-22 01:23:54,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:23:54,839 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 109 transitions. [2022-11-22 01:23:54,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 10 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2022-11-22 01:23:54,840 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 109 transitions. [2022-11-22 01:23:54,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-22 01:23:54,843 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:23:54,843 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:23:54,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:23:54,844 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:23:54,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:23:54,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1403934463, now seen corresponding path program 1 times [2022-11-22 01:23:54,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:23:54,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8208510] [2022-11-22 01:23:54,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:23:54,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:23:56,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:24:08,223 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-22 01:24:08,224 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:24:08,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8208510] [2022-11-22 01:24:08,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8208510] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:24:08,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [13953104] [2022-11-22 01:24:08,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:24:08,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:24:08,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df894666-363e-4714-88de-080e47637512/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:24:08,243 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df894666-363e-4714-88de-080e47637512/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:24:08,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df894666-363e-4714-88de-080e47637512/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:24:09,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:24:09,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 2603 conjuncts, 130 conjunts are in the unsatisfiable core [2022-11-22 01:24:09,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:24:09,596 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 [2022-11-22 01:24:09,602 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 13 treesize of output 9 [2022-11-22 01:24:13,912 INFO L321 Elim1Store]: treesize reduction 89, result has 27.6 percent of original size [2022-11-22 01:24:13,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 94 [2022-11-22 01:24:13,952 INFO L321 Elim1Store]: treesize reduction 55, result has 25.7 percent of original size [2022-11-22 01:24:13,952 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 1 case distinctions, treesize of input 20 treesize of output 34 [2022-11-22 01:24:14,009 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 17 treesize of output 11 [2022-11-22 01:24:14,027 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:24:14,062 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:24:14,063 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 25 [2022-11-22 01:24:14,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2022-11-22 01:24:14,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2022-11-22 01:24:14,136 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 17 treesize of output 11 [2022-11-22 01:24:15,794 INFO L321 Elim1Store]: treesize reduction 55, result has 25.7 percent of original size [2022-11-22 01:24:15,795 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 1 case distinctions, treesize of input 20 treesize of output 34 [2022-11-22 01:24:15,903 INFO L321 Elim1Store]: treesize reduction 89, result has 27.6 percent of original size [2022-11-22 01:24:15,904 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 94 [2022-11-22 01:24:15,949 INFO L321 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-11-22 01:24:15,949 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 2 case distinctions, treesize of input 53 treesize of output 54 [2022-11-22 01:24:15,958 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 17 treesize of output 11 [2022-11-22 01:24:15,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:24:15,999 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:24:15,999 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 37 [2022-11-22 01:24:16,062 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 [2022-11-22 01:24:16,211 INFO L321 Elim1Store]: treesize reduction 55, result has 25.7 percent of original size [2022-11-22 01:24:16,211 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 1 case distinctions, treesize of input 20 treesize of output 34 [2022-11-22 01:24:16,296 INFO L321 Elim1Store]: treesize reduction 89, result has 27.6 percent of original size [2022-11-22 01:24:16,296 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 94 [2022-11-22 01:24:16,357 INFO L321 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-11-22 01:24:16,357 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 2 case distinctions, treesize of input 53 treesize of output 54 [2022-11-22 01:24:16,372 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 17 treesize of output 11 [2022-11-22 01:24:16,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:24:16,416 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:24:16,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 37 [2022-11-22 01:24:16,465 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 [2022-11-22 01:24:16,598 INFO L321 Elim1Store]: treesize reduction 55, result has 25.7 percent of original size [2022-11-22 01:24:16,598 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 1 case distinctions, treesize of input 20 treesize of output 34 [2022-11-22 01:24:16,696 INFO L321 Elim1Store]: treesize reduction 89, result has 27.6 percent of original size [2022-11-22 01:24:16,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 94 [2022-11-22 01:24:16,761 INFO L321 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-11-22 01:24:16,762 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 2 case distinctions, treesize of input 53 treesize of output 54 [2022-11-22 01:24:16,780 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 17 treesize of output 11 [2022-11-22 01:24:16,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:24:16,818 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:24:16,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 37 [2022-11-22 01:24:16,847 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 [2022-11-22 01:24:16,973 INFO L321 Elim1Store]: treesize reduction 55, result has 25.7 percent of original size [2022-11-22 01:24:16,973 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 1 case distinctions, treesize of input 20 treesize of output 34 [2022-11-22 01:24:17,054 INFO L321 Elim1Store]: treesize reduction 89, result has 27.6 percent of original size [2022-11-22 01:24:17,055 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 94 [2022-11-22 01:24:17,102 INFO L321 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-11-22 01:24:17,102 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 2 case distinctions, treesize of input 53 treesize of output 54 [2022-11-22 01:24:17,110 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 17 treesize of output 11 [2022-11-22 01:24:17,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:24:17,154 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:24:17,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 37 [2022-11-22 01:24:17,213 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 [2022-11-22 01:24:17,641 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_old(#memory_$Pointer$.base)| |c_aws_byte_cursor_from_buf_#in~buf.base|) (+ |c_aws_byte_cursor_from_buf_#in~buf.offset| 8)))) (or (exists ((v_ArrVal_200 Int) (|aws_byte_cursor_from_buf_~#cur~0.base| Int) (v_ArrVal_197 Int)) (and (not (= (select (select |c_#memory_$Pointer$.base| |aws_byte_cursor_from_buf_~#cur~0.base|) 8) 0)) (= (store |c_old(#memory_$Pointer$.base)| |aws_byte_cursor_from_buf_~#cur~0.base| (store (store (select |c_old(#memory_$Pointer$.base)| |aws_byte_cursor_from_buf_~#cur~0.base|) 8 .cse0) 0 v_ArrVal_197)) |c_#memory_$Pointer$.base|) (not (= |aws_byte_cursor_from_buf_~#cur~0.base| 0)) (= |c_#memory_int| (store |c_old(#memory_int)| |aws_byte_cursor_from_buf_~#cur~0.base| (let ((.cse1 (store (select |c_old(#memory_int)| |aws_byte_cursor_from_buf_~#cur~0.base|) 8 v_ArrVal_200))) (store .cse1 0 (select (select (store |c_old(#memory_int)| |aws_byte_cursor_from_buf_~#cur~0.base| .cse1) |c_aws_byte_cursor_from_buf_#in~buf.base|) |c_aws_byte_cursor_from_buf_#in~buf.offset|))))))) (exists ((v_ArrVal_200 Int) (|aws_byte_cursor_from_buf_~#cur~0.base| Int) (v_ArrVal_197 Int)) (and (= (store |c_old(#memory_$Pointer$.base)| |aws_byte_cursor_from_buf_~#cur~0.base| (store (store (select |c_old(#memory_$Pointer$.base)| |aws_byte_cursor_from_buf_~#cur~0.base|) 8 .cse0) 0 v_ArrVal_197)) |c_#memory_$Pointer$.base|) (not (= |aws_byte_cursor_from_buf_~#cur~0.base| 0)) (= (mod (select (select |c_#memory_int| |aws_byte_cursor_from_buf_~#cur~0.base|) 0) 18446744073709551616) 0) (= |c_#memory_int| (store |c_old(#memory_int)| |aws_byte_cursor_from_buf_~#cur~0.base| (let ((.cse2 (store (select |c_old(#memory_int)| |aws_byte_cursor_from_buf_~#cur~0.base|) 8 v_ArrVal_200))) (store .cse2 0 (select (select (store |c_old(#memory_int)| |aws_byte_cursor_from_buf_~#cur~0.base| .cse2) |c_aws_byte_cursor_from_buf_#in~buf.base|) |c_aws_byte_cursor_from_buf_#in~buf.offset|))))))) (exists ((v_ArrVal_200 Int) (|aws_byte_cursor_from_buf_~#cur~0.base| Int) (v_ArrVal_197 Int)) (and (= (store |c_old(#memory_$Pointer$.base)| |aws_byte_cursor_from_buf_~#cur~0.base| (store (store (select |c_old(#memory_$Pointer$.base)| |aws_byte_cursor_from_buf_~#cur~0.base|) 8 .cse0) 0 v_ArrVal_197)) |c_#memory_$Pointer$.base|) (not (= (select (select |c_#memory_$Pointer$.offset| |aws_byte_cursor_from_buf_~#cur~0.base|) 8) 0)) (not (= |aws_byte_cursor_from_buf_~#cur~0.base| 0)) (= |c_#memory_int| (store |c_old(#memory_int)| |aws_byte_cursor_from_buf_~#cur~0.base| (let ((.cse3 (store (select |c_old(#memory_int)| |aws_byte_cursor_from_buf_~#cur~0.base|) 8 v_ArrVal_200))) (store .cse3 0 (select (select (store |c_old(#memory_int)| |aws_byte_cursor_from_buf_~#cur~0.base| .cse3) |c_aws_byte_cursor_from_buf_#in~buf.base|) |c_aws_byte_cursor_from_buf_#in~buf.offset|))))))))) is different from true [2022-11-22 01:24:17,747 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:24:17,930 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-22 01:24:17,931 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 190 treesize of output 241 [2022-11-22 01:24:17,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:24:17,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:24:17,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:24:18,027 INFO L321 Elim1Store]: treesize reduction 48, result has 31.4 percent of original size [2022-11-22 01:24:18,027 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 127 treesize of output 201 [2022-11-22 01:24:18,648 INFO L321 Elim1Store]: treesize reduction 78, result has 29.7 percent of original size [2022-11-22 01:24:18,648 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 106 treesize of output 121 [2022-11-22 01:24:18,668 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 [2022-11-22 01:24:18,736 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 57 treesize of output 37 [2022-11-22 01:24:18,772 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 57 treesize of output 37 [2022-11-22 01:24:18,838 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 57 treesize of output 37 [2022-11-22 01:24:19,090 INFO L321 Elim1Store]: treesize reduction 78, result has 29.7 percent of original size [2022-11-22 01:24:19,090 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 106 treesize of output 121 [2022-11-22 01:24:19,109 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 [2022-11-22 01:24:19,146 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 57 treesize of output 37 [2022-11-22 01:24:19,198 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 57 treesize of output 37 [2022-11-22 01:24:19,240 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 57 treesize of output 37 [2022-11-22 01:24:19,650 INFO L321 Elim1Store]: treesize reduction 98, result has 28.5 percent of original size [2022-11-22 01:24:19,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 74 treesize of output 99 [2022-11-22 01:24:19,871 INFO L321 Elim1Store]: treesize reduction 112, result has 22.8 percent of original size [2022-11-22 01:24:19,872 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 8 case distinctions, treesize of input 648 treesize of output 645 [2022-11-22 01:24:20,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:24:20,306 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 443 treesize of output 421 [2022-11-22 01:24:21,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:24:21,316 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 125 treesize of output 105 [2022-11-22 01:24:21,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:24:21,393 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 125 treesize of output 105 [2022-11-22 01:24:21,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:24:21,501 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 301 treesize of output 281 [2022-11-22 01:24:21,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:24:21,839 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 162 treesize of output 128 [2022-11-22 01:24:22,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:24:22,078 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 162 treesize of output 128 [2022-11-22 01:24:22,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:24:22,129 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 40 treesize of output 28 [2022-11-22 01:24:22,291 INFO L321 Elim1Store]: treesize reduction 39, result has 35.0 percent of original size [2022-11-22 01:24:22,292 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 4 case distinctions, treesize of input 65 treesize of output 62 [2022-11-22 01:24:22,302 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 [2022-11-22 01:24:22,317 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 33 treesize of output 21 [2022-11-22 01:24:22,337 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 33 treesize of output 21 [2022-11-22 01:24:25,931 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:24:25,931 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 4 case distinctions, treesize of input 81 treesize of output 65 [2022-11-22 01:24:25,983 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:24:25,984 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 17 treesize of output 17 [2022-11-22 01:24:26,258 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 01:24:26,258 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:24:29,025 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 76449 disjunctions. This might take some time... [2022-11-22 01:32:11,924 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 76449 disjunctions.