./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8 --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 0658a835d559c56129f1a85a00e9d3bbd205d66ef64b5c7d14ae72b3d1b496e0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:51:14,226 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:51:14,230 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:51:14,278 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:51:14,279 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:51:14,284 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:51:14,288 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:51:14,294 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:51:14,298 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:51:14,305 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:51:14,306 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:51:14,309 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:51:14,309 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:51:14,313 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:51:14,315 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:51:14,322 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:51:14,324 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:51:14,326 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:51:14,331 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:51:14,342 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:51:14,344 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:51:14,346 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:51:14,351 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:51:14,352 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:51:14,364 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:51:14,365 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:51:14,365 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:51:14,367 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:51:14,368 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:51:14,369 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:51:14,370 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:51:14,371 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:51:14,372 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:51:14,374 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:51:14,375 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:51:14,376 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:51:14,377 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:51:14,377 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:51:14,377 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:51:14,378 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:51:14,379 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:51:14,380 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:51:14,416 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:51:14,417 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:51:14,418 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:51:14,418 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:51:14,418 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:51:14,419 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:51:14,419 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:51:14,419 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:51:14,419 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:51:14,420 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:51:14,420 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:51:14,420 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:51:14,420 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:51:14,421 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:51:14,421 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:51:14,422 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:51:14,422 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:51:14,422 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:51:14,423 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:51:14,423 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:51:14,423 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:51:14,423 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:51:14,424 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:51:14,424 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:51:14,424 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:51:14,424 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:51:14,425 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:51:14,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:51:14,425 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:51:14,426 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:51:14,426 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:51:14,426 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:51:14,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:51:14,427 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:51:14,427 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:51:14,427 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:51:14,427 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0658a835d559c56129f1a85a00e9d3bbd205d66ef64b5c7d14ae72b3d1b496e0 [2021-11-07 01:51:14,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:51:14,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:51:14,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:51:14,851 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:51:14,852 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:51:14,854 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i [2021-11-07 01:51:14,969 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8/data/c8d96ee12/63d0837f8f2b4ce18a12b8e372b2fcef/FLAGccd95504b [2021-11-07 01:51:16,145 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:51:16,147 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i [2021-11-07 01:51:16,208 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8/data/c8d96ee12/63d0837f8f2b4ce18a12b8e372b2fcef/FLAGccd95504b [2021-11-07 01:51:16,428 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8/data/c8d96ee12/63d0837f8f2b4ce18a12b8e372b2fcef [2021-11-07 01:51:16,432 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:51:16,433 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:51:16,435 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:51:16,436 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:51:16,440 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:51:16,442 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:51:16" (1/1) ... [2021-11-07 01:51:16,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21451eb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:16, skipping insertion in model container [2021-11-07 01:51:16,444 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:51:16" (1/1) ... [2021-11-07 01:51:16,452 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:51:16,616 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:51:17,043 WARN L228 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_5c93d6d6-243c-4460-a693-ab365ebc686e/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i[4504,4517] [2021-11-07 01:51:17,056 WARN L228 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_5c93d6d6-243c-4460-a693-ab365ebc686e/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i[4564,4577] [2021-11-07 01:51:17,094 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:51:17,112 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:51:18,406 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:51:18,407 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:51:18,408 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:51:18,409 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:51:18,411 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:51:18,434 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:51:18,435 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:51:18,438 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:51:18,439 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:51:19,011 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:51:19,014 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:51:19,018 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:51:19,022 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:51:19,039 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:51:19,040 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:51:19,041 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:51:19,042 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:51:19,043 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:51:19,044 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:51:19,377 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:51:19,538 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:51:19,539 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:51:19,698 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:51:19,769 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 01:51:19,769 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@392fc214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:19, skipping insertion in model container [2021-11-07 01:51:19,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:51:19,770 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:51:19,773 INFO L168 Benchmark]: Toolchain (without parser) took 3337.84 ms. Allocated memory was 100.7 MB in the beginning and 136.3 MB in the end (delta: 35.7 MB). Free memory was 58.8 MB in the beginning and 92.0 MB in the end (delta: -33.2 MB). Peak memory consumption was 32.4 MB. Max. memory is 16.1 GB. [2021-11-07 01:51:19,774 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 100.7 MB. Free memory is still 53.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:51:19,775 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3334.49 ms. Allocated memory was 100.7 MB in the beginning and 136.3 MB in the end (delta: 35.7 MB). Free memory was 58.6 MB in the beginning and 92.0 MB in the end (delta: -33.4 MB). Peak memory consumption was 32.4 MB. Max. memory is 16.1 GB. [2021-11-07 01:51:19,777 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 100.7 MB. Free memory is still 53.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3334.49 ms. Allocated memory was 100.7 MB in the beginning and 136.3 MB in the end (delta: 35.7 MB). Free memory was 58.6 MB in the beginning and 92.0 MB in the end (delta: -33.4 MB). Peak memory consumption was 32.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6990]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8 --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 0658a835d559c56129f1a85a00e9d3bbd205d66ef64b5c7d14ae72b3d1b496e0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:51:22,361 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:51:22,365 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:51:22,431 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:51:22,432 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:51:22,437 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:51:22,439 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:51:22,445 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:51:22,449 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:51:22,466 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:51:22,467 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:51:22,470 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:51:22,471 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:51:22,474 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:51:22,477 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:51:22,484 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:51:22,486 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:51:22,488 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:51:22,490 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:51:22,499 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:51:22,502 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:51:22,504 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:51:22,507 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:51:22,510 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:51:22,521 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:51:22,521 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:51:22,522 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:51:22,524 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:51:22,525 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:51:22,526 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:51:22,527 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:51:22,528 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:51:22,530 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:51:22,532 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:51:22,533 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:51:22,534 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:51:22,546 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:51:22,547 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:51:22,547 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:51:22,550 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:51:22,551 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:51:22,553 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:51:22,611 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:51:22,611 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:51:22,613 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:51:22,613 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:51:22,613 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:51:22,614 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:51:22,614 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:51:22,614 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:51:22,615 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:51:22,617 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:51:22,618 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:51:22,618 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:51:22,619 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:51:22,619 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:51:22,619 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:51:22,620 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:51:22,620 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:51:22,620 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:51:22,620 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:51:22,621 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:51:22,621 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:51:22,621 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:51:22,622 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:51:22,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:51:22,622 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:51:22,623 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:51:22,623 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:51:22,623 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:51:22,624 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:51:22,624 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:51:22,624 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:51:22,624 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:51:22,625 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0658a835d559c56129f1a85a00e9d3bbd205d66ef64b5c7d14ae72b3d1b496e0 [2021-11-07 01:51:23,164 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:51:23,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:51:23,202 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:51:23,203 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:51:23,205 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:51:23,206 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i [2021-11-07 01:51:23,297 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8/data/93ed4a604/02f428d5e8db4bd89c5effa506aa7805/FLAG7ff948c70 [2021-11-07 01:51:24,430 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:51:24,431 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i [2021-11-07 01:51:24,484 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8/data/93ed4a604/02f428d5e8db4bd89c5effa506aa7805/FLAG7ff948c70 [2021-11-07 01:51:24,806 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8/data/93ed4a604/02f428d5e8db4bd89c5effa506aa7805 [2021-11-07 01:51:24,812 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:51:24,815 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:51:24,816 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:51:24,817 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:51:24,821 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:51:24,822 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:51:24" (1/1) ... [2021-11-07 01:51:24,823 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30bddf87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:24, skipping insertion in model container [2021-11-07 01:51:24,824 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:51:24" (1/1) ... [2021-11-07 01:51:24,834 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:51:24,980 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:51:25,372 WARN L228 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_5c93d6d6-243c-4460-a693-ab365ebc686e/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i[4504,4517] [2021-11-07 01:51:25,380 WARN L228 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_5c93d6d6-243c-4460-a693-ab365ebc686e/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i[4564,4577] [2021-11-07 01:51:25,407 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:51:25,414 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:51:26,613 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:51:26,615 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:51:26,617 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:51:26,621 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:51:26,624 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:51:26,655 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:51:26,656 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:51:26,658 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:51:26,659 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:51:27,260 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:51:27,261 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:51:27,263 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:51:27,265 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:51:27,267 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:51:27,268 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:51:27,269 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:51:27,270 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:51:27,271 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:51:27,272 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:51:27,595 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:51:27,823 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:51:27,824 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:51:27,929 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:51:28,028 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:51:28,147 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:51:28,157 WARN L228 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_5c93d6d6-243c-4460-a693-ab365ebc686e/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i[4504,4517] [2021-11-07 01:51:28,157 WARN L228 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_5c93d6d6-243c-4460-a693-ab365ebc686e/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i[4564,4577] [2021-11-07 01:51:28,168 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:51:28,169 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:51:28,239 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:51:28,240 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:51:28,240 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:51:28,241 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:51:28,242 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:51:28,257 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:51:28,258 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:51:28,260 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:51:28,260 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:51:28,339 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:51:28,340 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:51:28,341 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:51:28,343 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:51:28,344 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:51:28,345 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:51:28,345 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:51:28,346 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:51:28,347 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:51:28,351 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:51:28,396 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:51:28,512 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:51:28,513 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:51:28,557 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:51:28,653 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:51:28,684 WARN L228 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_5c93d6d6-243c-4460-a693-ab365ebc686e/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i[4504,4517] [2021-11-07 01:51:28,685 WARN L228 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_5c93d6d6-243c-4460-a693-ab365ebc686e/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i[4564,4577] [2021-11-07 01:51:28,687 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:51:28,688 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:51:28,736 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:51:28,736 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:51:28,737 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:51:28,737 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:51:28,738 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:51:28,749 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:51:28,750 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:51:28,751 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:51:28,752 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:51:28,793 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:51:28,794 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:51:28,795 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:51:28,796 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:51:28,797 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:51:28,798 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:51:28,799 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:51:28,801 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:51:28,801 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:51:28,802 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:51:28,832 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:51:28,926 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:51:28,927 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:51:28,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:51:29,480 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:51:29,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:29 WrapperNode [2021-11-07 01:51:29,482 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:51:29,483 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:51:29,483 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:51:29,484 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:51:29,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:29" (1/1) ... [2021-11-07 01:51:29,669 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:29" (1/1) ... [2021-11-07 01:51:29,811 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:51:29,812 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:51:29,812 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:51:29,812 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:51:29,823 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:29" (1/1) ... [2021-11-07 01:51:29,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:29" (1/1) ... [2021-11-07 01:51:29,877 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:29" (1/1) ... [2021-11-07 01:51:29,878 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:29" (1/1) ... [2021-11-07 01:51:29,993 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:29" (1/1) ... [2021-11-07 01:51:30,019 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:29" (1/1) ... [2021-11-07 01:51:30,050 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:29" (1/1) ... [2021-11-07 01:51:30,070 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:51:30,071 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:51:30,072 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:51:30,072 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:51:30,073 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:29" (1/1) ... [2021-11-07 01:51:30,081 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:51:30,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:51:30,109 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:51:30,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:51:30,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:51:30,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:51:30,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:51:30,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:51:30,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:51:30,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:51:30,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:51:30,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:51:30,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:51:30,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:51:30,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:51:30,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:51:30,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 01:51:30,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:51:48,400 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:51:48,400 INFO L299 CfgBuilder]: Removed 130 assume(true) statements. [2021-11-07 01:51:48,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:51:48 BoogieIcfgContainer [2021-11-07 01:51:48,403 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:51:48,405 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:51:48,406 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:51:48,409 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:51:48,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:51:24" (1/3) ... [2021-11-07 01:51:48,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ce3b7ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:51:48, skipping insertion in model container [2021-11-07 01:51:48,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:29" (2/3) ... [2021-11-07 01:51:48,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ce3b7ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:51:48, skipping insertion in model container [2021-11-07 01:51:48,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:51:48" (3/3) ... [2021-11-07 01:51:48,413 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_compare_lookup_harness.i [2021-11-07 01:51:48,419 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:51:48,420 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2021-11-07 01:51:48,481 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:51:48,487 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 01:51:48,488 INFO L340 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2021-11-07 01:51:48,513 INFO L276 IsEmpty]: Start isEmpty. Operand has 311 states, 296 states have (on average 1.4864864864864864) internal successors, (440), 310 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:51:48,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 01:51:48,522 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:51:48,523 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:51:48,523 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 01:51:48,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:51:48,530 INFO L85 PathProgramCache]: Analyzing trace with hash -424146730, now seen corresponding path program 1 times [2021-11-07 01:51:48,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:51:48,562 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [983592698] [2021-11-07 01:51:48,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:51:48,563 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:51:48,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:51:48,567 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:51:48,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:51:53,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:51:53,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 1811 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:51:53,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:51:54,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:51:54,122 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:51:54,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:51:54,251 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:51:54,251 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [983592698] [2021-11-07 01:51:54,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [983592698] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:51:54,252 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:51:54,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:51:54,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000572684] [2021-11-07 01:51:54,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:51:54,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:51:54,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:51:54,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:51:54,290 INFO L87 Difference]: Start difference. First operand has 311 states, 296 states have (on average 1.4864864864864864) internal successors, (440), 310 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:51:54,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:51:54,349 INFO L93 Difference]: Finished difference Result 618 states and 875 transitions. [2021-11-07 01:51:54,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:51:54,351 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-11-07 01:51:54,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:51:54,366 INFO L225 Difference]: With dead ends: 618 [2021-11-07 01:51:54,367 INFO L226 Difference]: Without dead ends: 304 [2021-11-07 01:51:54,370 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:51:54,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2021-11-07 01:51:54,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2021-11-07 01:51:54,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 290 states have (on average 1.3827586206896552) internal successors, (401), 303 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:51:54,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 401 transitions. [2021-11-07 01:51:54,443 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 401 transitions. Word has length 39 [2021-11-07 01:51:54,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:51:54,444 INFO L470 AbstractCegarLoop]: Abstraction has 304 states and 401 transitions. [2021-11-07 01:51:54,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:51:54,444 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 401 transitions. [2021-11-07 01:51:54,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 01:51:54,447 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:51:54,447 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:51:54,494 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-07 01:51:54,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:51:54,649 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 01:51:54,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:51:54,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1377522796, now seen corresponding path program 1 times [2021-11-07 01:51:54,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:51:54,656 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1394781647] [2021-11-07 01:51:54,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:51:54,656 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:51:54,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:51:54,658 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:51:54,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:51:59,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:52:00,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 1811 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:52:00,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:52:00,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:52:00,443 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:52:00,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:52:00,702 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:52:00,703 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1394781647] [2021-11-07 01:52:00,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1394781647] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:52:00,703 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:52:00,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:52:00,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524033043] [2021-11-07 01:52:00,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:52:00,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:52:00,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:52:00,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:52:00,712 INFO L87 Difference]: Start difference. First operand 304 states and 401 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:52:01,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:52:01,585 INFO L93 Difference]: Finished difference Result 587 states and 775 transitions. [2021-11-07 01:52:01,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:52:01,590 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-11-07 01:52:01,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:52:01,594 INFO L225 Difference]: With dead ends: 587 [2021-11-07 01:52:01,594 INFO L226 Difference]: Without dead ends: 304 [2021-11-07 01:52:01,596 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:52:01,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2021-11-07 01:52:01,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2021-11-07 01:52:01,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 290 states have (on average 1.3689655172413793) internal successors, (397), 303 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:52:01,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 397 transitions. [2021-11-07 01:52:01,625 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 397 transitions. Word has length 39 [2021-11-07 01:52:01,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:52:01,626 INFO L470 AbstractCegarLoop]: Abstraction has 304 states and 397 transitions. [2021-11-07 01:52:01,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:52:01,627 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 397 transitions. [2021-11-07 01:52:01,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-07 01:52:01,629 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:52:01,629 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:52:01,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:52:01,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:52:01,830 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 01:52:01,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:52:01,831 INFO L85 PathProgramCache]: Analyzing trace with hash 914596510, now seen corresponding path program 1 times [2021-11-07 01:52:01,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:52:01,839 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1480382060] [2021-11-07 01:52:01,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:52:01,840 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:52:01,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:52:01,842 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:52:01,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:52:07,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:52:07,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 1819 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:52:07,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:52:07,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:52:07,759 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:52:08,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:52:08,063 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:52:08,064 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1480382060] [2021-11-07 01:52:08,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1480382060] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:52:08,064 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:52:08,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:52:08,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889593415] [2021-11-07 01:52:08,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:52:08,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:52:08,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:52:08,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:52:08,067 INFO L87 Difference]: Start difference. First operand 304 states and 397 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:52:09,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:52:09,183 INFO L93 Difference]: Finished difference Result 562 states and 736 transitions. [2021-11-07 01:52:09,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:52:09,184 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-11-07 01:52:09,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:52:09,187 INFO L225 Difference]: With dead ends: 562 [2021-11-07 01:52:09,187 INFO L226 Difference]: Without dead ends: 304 [2021-11-07 01:52:09,189 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:52:09,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2021-11-07 01:52:09,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2021-11-07 01:52:09,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 290 states have (on average 1.3517241379310345) internal successors, (392), 303 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:52:09,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 392 transitions. [2021-11-07 01:52:09,212 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 392 transitions. Word has length 43 [2021-11-07 01:52:09,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:52:09,212 INFO L470 AbstractCegarLoop]: Abstraction has 304 states and 392 transitions. [2021-11-07 01:52:09,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:52:09,213 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 392 transitions. [2021-11-07 01:52:09,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-07 01:52:09,215 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:52:09,216 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:52:09,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:52:09,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:52:09,442 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-07 01:52:09,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:52:09,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1965512071, now seen corresponding path program 1 times [2021-11-07 01:52:09,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:52:09,447 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1963803916] [2021-11-07 01:52:09,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:52:09,447 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:52:09,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:52:09,448 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:52:09,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c93d6d6-243c-4460-a693-ab365ebc686e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:52:14,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:52:15,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 1823 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-07 01:52:15,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:52:15,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-07 01:52:15,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2021-11-07 01:52:15,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2021-11-07 01:52:17,196 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:52:17,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 115 treesize of output 51 [2021-11-07 01:52:17,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 43 [2021-11-07 01:52:17,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:52:17,473 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:52:48,404 WARN L207 SmtUtils]: Spent 28.42 s on a formula simplification. DAG size of input: 523 DAG size of output: 269 [2021-11-07 01:52:48,410 INFO L354 Elim1Store]: treesize reduction 837, result has 46.8 percent of original size [2021-11-07 01:52:48,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 143 treesize of output 786