./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd04ee7-7882-4cd7-8bbd-8f8fc6f77d71/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd04ee7-7882-4cd7-8bbd-8f8fc6f77d71/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd04ee7-7882-4cd7-8bbd-8f8fc6f77d71/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd04ee7-7882-4cd7-8bbd-8f8fc6f77d71/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd04ee7-7882-4cd7-8bbd-8f8fc6f77d71/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd04ee7-7882-4cd7-8bbd-8f8fc6f77d71/bin/utaipan-Q6hlc19bkW --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 4c8e70dc7f77f825f3ef2e89303bbf356ceb3a21ef4dcf0b5c90667d3d62b0fd --- 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-4e7fbc6 [2022-11-23 14:14:44,090 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:14:44,092 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:14:44,120 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:14:44,120 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:14:44,121 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:14:44,123 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:14:44,125 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:14:44,126 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:14:44,128 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:14:44,129 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:14:44,130 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:14:44,130 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:14:44,132 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:14:44,133 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:14:44,134 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:14:44,135 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:14:44,136 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:14:44,137 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:14:44,139 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:14:44,141 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:14:44,143 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:14:44,144 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:14:44,145 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:14:44,149 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:14:44,149 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:14:44,150 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:14:44,151 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:14:44,151 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:14:44,152 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:14:44,153 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:14:44,154 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:14:44,155 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:14:44,155 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:14:44,160 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:14:44,161 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:14:44,161 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:14:44,162 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:14:44,162 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:14:44,163 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:14:44,164 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:14:44,166 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd04ee7-7882-4cd7-8bbd-8f8fc6f77d71/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 14:14:44,208 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:14:44,208 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:14:44,209 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:14:44,209 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:14:44,210 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:14:44,210 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:14:44,210 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:14:44,216 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:14:44,216 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:14:44,216 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:14:44,217 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:14:44,218 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:14:44,218 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:14:44,218 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:14:44,218 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:14:44,219 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:14:44,219 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:14:44,219 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:14:44,220 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:14:44,220 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:14:44,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:14:44,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:14:44,221 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:14:44,221 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:14:44,221 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:14:44,221 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:14:44,222 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:14:44,222 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:14:44,222 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:14:44,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:14:44,223 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:14:44,223 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:14:44,223 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:14:44,224 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:14:44,224 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:14:44,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:14:44,224 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:14:44,224 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:14:44,224 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_fdd04ee7-7882-4cd7-8bbd-8f8fc6f77d71/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd04ee7-7882-4cd7-8bbd-8f8fc6f77d71/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c8e70dc7f77f825f3ef2e89303bbf356ceb3a21ef4dcf0b5c90667d3d62b0fd [2022-11-23 14:14:44,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:14:44,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:14:44,567 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:14:44,569 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:14:44,569 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:14:44,570 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd04ee7-7882-4cd7-8bbd-8f8fc6f77d71/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i [2022-11-23 14:14:47,793 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:14:48,360 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:14:48,361 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd04ee7-7882-4cd7-8bbd-8f8fc6f77d71/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i [2022-11-23 14:14:48,395 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd04ee7-7882-4cd7-8bbd-8f8fc6f77d71/bin/utaipan-Q6hlc19bkW/data/61da95a93/d8311d068c7e41e991a7acb55fdd7636/FLAGbcbefe6df [2022-11-23 14:14:48,410 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd04ee7-7882-4cd7-8bbd-8f8fc6f77d71/bin/utaipan-Q6hlc19bkW/data/61da95a93/d8311d068c7e41e991a7acb55fdd7636 [2022-11-23 14:14:48,413 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:14:48,414 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:14:48,416 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:14:48,416 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:14:48,420 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:14:48,420 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:14:48" (1/1) ... [2022-11-23 14:14:48,422 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@609c4e66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:48, skipping insertion in model container [2022-11-23 14:14:48,422 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:14:48" (1/1) ... [2022-11-23 14:14:48,430 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:14:48,539 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:14:48,805 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_fdd04ee7-7882-4cd7-8bbd-8f8fc6f77d71/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i[4501,4514] [2022-11-23 14:14:48,817 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_fdd04ee7-7882-4cd7-8bbd-8f8fc6f77d71/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i[4561,4574] [2022-11-23 14:14:49,926 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:14:49,927 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:14:49,927 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:14:49,928 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:14:49,930 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:14:49,948 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:14:49,949 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:14:49,951 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:14:49,951 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:14:50,538 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-23 14:14:50,540 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-23 14:14:50,541 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-23 14:14:50,542 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-23 14:14:50,544 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-23 14:14:50,545 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-23 14:14:50,546 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-23 14:14:50,547 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-23 14:14:50,550 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-23 14:14:50,552 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-23 14:14:50,803 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-23 14:14:50,892 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:14:50,892 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:14:50,962 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:14:51,007 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:14:51,023 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_fdd04ee7-7882-4cd7-8bbd-8f8fc6f77d71/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i[4501,4514] [2022-11-23 14:14:51,024 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_fdd04ee7-7882-4cd7-8bbd-8f8fc6f77d71/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i[4561,4574] [2022-11-23 14:14:51,060 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:14:51,060 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:14:51,061 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:14:51,061 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:14:51,062 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:14:51,068 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:14:51,075 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:14:51,076 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:14:51,077 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:14:51,134 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-23 14:14:51,135 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-23 14:14:51,136 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-23 14:14:51,138 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-23 14:14:51,139 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-23 14:14:51,140 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-23 14:14:51,141 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-23 14:14:51,142 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-23 14:14:51,142 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-23 14:14:51,146 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-23 14:14:51,192 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-23 14:14:51,277 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:14:51,278 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-23 14:14:51,323 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:14:51,562 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:14:51,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:51 WrapperNode [2022-11-23 14:14:51,563 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:14:51,564 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:14:51,564 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:14:51,564 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:14:51,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:51" (1/1) ... [2022-11-23 14:14:51,683 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:51" (1/1) ... [2022-11-23 14:14:51,767 INFO L138 Inliner]: procedures = 691, calls = 2650, calls flagged for inlining = 65, calls inlined = 11, statements flattened = 933 [2022-11-23 14:14:51,768 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:14:51,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:14:51,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:14:51,770 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:14:51,779 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:51" (1/1) ... [2022-11-23 14:14:51,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:51" (1/1) ... [2022-11-23 14:14:51,802 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:51" (1/1) ... [2022-11-23 14:14:51,805 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:51" (1/1) ... [2022-11-23 14:14:51,852 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:51" (1/1) ... [2022-11-23 14:14:51,865 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:51" (1/1) ... [2022-11-23 14:14:51,882 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:51" (1/1) ... [2022-11-23 14:14:51,886 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:51" (1/1) ... [2022-11-23 14:14:51,905 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:14:51,906 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:14:51,906 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:14:51,906 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:14:51,907 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:51" (1/1) ... [2022-11-23 14:14:51,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:14:51,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd04ee7-7882-4cd7-8bbd-8f8fc6f77d71/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:14:51,936 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd04ee7-7882-4cd7-8bbd-8f8fc6f77d71/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:14:51,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd04ee7-7882-4cd7-8bbd-8f8fc6f77d71/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:14:52,023 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2022-11-23 14:14:52,023 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2022-11-23 14:14:52,023 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2022-11-23 14:14:52,024 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2022-11-23 14:14:52,024 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-23 14:14:52,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:14:52,025 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-23 14:14:52,025 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-23 14:14:52,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:14:52,026 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-23 14:14:52,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-23 14:14:52,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 14:14:52,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:14:52,027 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2022-11-23 14:14:52,027 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2022-11-23 14:14:52,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 14:14:52,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:14:52,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:14:52,028 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-23 14:14:52,028 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-23 14:14:52,029 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-23 14:14:52,029 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-23 14:14:52,029 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-23 14:14:52,029 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-23 14:14:52,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:14:52,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 14:14:52,030 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2022-11-23 14:14:52,030 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2022-11-23 14:14:52,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 14:14:52,031 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-23 14:14:52,031 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-23 14:14:52,031 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-23 14:14:52,031 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-23 14:14:52,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:14:52,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:14:52,429 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:14:52,432 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:14:53,854 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:14:54,166 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:14:54,166 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 14:14:54,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:14:54 BoogieIcfgContainer [2022-11-23 14:14:54,170 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:14:54,175 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:14:54,175 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:14:54,178 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:14:54,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:14:48" (1/3) ... [2022-11-23 14:14:54,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@291486ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:14:54, skipping insertion in model container [2022-11-23 14:14:54,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:51" (2/3) ... [2022-11-23 14:14:54,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@291486ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:14:54, skipping insertion in model container [2022-11-23 14:14:54,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:14:54" (3/3) ... [2022-11-23 14:14:54,186 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_eq_byte_buf_harness.i [2022-11-23 14:14:54,205 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:14:54,205 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:14:54,266 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:14:54,272 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;@319ff103, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:14:54,272 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:14:54,277 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 62 states have (on average 1.1935483870967742) internal successors, (74), 63 states have internal predecessors, (74), 42 states have call successors, (42), 11 states have call predecessors, (42), 11 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2022-11-23 14:14:54,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-23 14:14:54,290 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:14:54,291 INFO L195 NwaCegarLoop]: trace histogram [9, 3, 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] [2022-11-23 14:14:54,291 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:14:54,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:14:54,296 INFO L85 PathProgramCache]: Analyzing trace with hash 45101985, now seen corresponding path program 1 times [2022-11-23 14:14:54,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:14:54,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047080673] [2022-11-23 14:14:54,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:14:54,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:14:56,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:15:07,811 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-11-23 14:15:07,811 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:15:07,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047080673] [2022-11-23 14:15:07,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047080673] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:15:07,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421546818] [2022-11-23 14:15:07,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:15:07,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:15:07,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd04ee7-7882-4cd7-8bbd-8f8fc6f77d71/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:15:07,818 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd04ee7-7882-4cd7-8bbd-8f8fc6f77d71/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:15:07,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd04ee7-7882-4cd7-8bbd-8f8fc6f77d71/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 14:15:08,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:15:08,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 2738 conjuncts, 142 conjunts are in the unsatisfiable core [2022-11-23 14:15:08,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:15:08,701 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 10 treesize of output 8 [2022-11-23 14:15:09,047 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 [2022-11-23 14:15:09,065 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 [2022-11-23 14:15:10,416 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:15:10,420 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-23 14:15:10,420 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 17 treesize of output 7 [2022-11-23 14:15:10,430 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:15:10,433 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-23 14:15:10,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 17 treesize of output 7 [2022-11-23 14:15:11,400 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 16 treesize of output 18 [2022-11-23 14:15:11,890 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 14:15:11,906 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 16 treesize of output 18 [2022-11-23 14:15:12,730 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2022-11-23 14:15:12,737 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 5 [2022-11-23 14:15:12,861 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-11-23 14:15:17,514 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 20 proven. 53 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-23 14:15:17,515 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:15:18,646 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 14202 disjunctions. This might take some time... [2022-11-23 14:15:33,363 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 13413 disjunctions.