./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16550a5f-57f6-4dc9-9a3b-19f8a05b9818/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16550a5f-57f6-4dc9-9a3b-19f8a05b9818/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16550a5f-57f6-4dc9-9a3b-19f8a05b9818/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16550a5f-57f6-4dc9-9a3b-19f8a05b9818/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16550a5f-57f6-4dc9-9a3b-19f8a05b9818/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16550a5f-57f6-4dc9-9a3b-19f8a05b9818/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --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 f26a5d85d152e590b5f8a93f229efbb28bdd5e77c34d7106bb5825fc4b732cf6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:56:27,406 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:56:27,476 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16550a5f-57f6-4dc9-9a3b-19f8a05b9818/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:56:27,482 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:56:27,483 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:56:27,525 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:56:27,526 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:56:27,527 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:56:27,528 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:56:27,528 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:56:27,529 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:56:27,530 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:56:27,530 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:56:27,531 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:56:27,531 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:56:27,532 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:56:27,533 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:56:27,533 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:56:27,534 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:56:27,535 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:56:27,535 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:56:27,536 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:56:27,537 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:56:27,551 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:56:27,551 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:56:27,552 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:56:27,552 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:56:27,553 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:56:27,553 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:56:27,554 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:56:27,554 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:56:27,555 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:56:27,555 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:56:27,555 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:56:27,556 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:56:27,556 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:56:27,556 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:56:27,557 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:56:27,557 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:56:27,557 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:56:27,557 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:56:27,558 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:56:27,558 INFO L153 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_16550a5f-57f6-4dc9-9a3b-19f8a05b9818/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16550a5f-57f6-4dc9-9a3b-19f8a05b9818/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f26a5d85d152e590b5f8a93f229efbb28bdd5e77c34d7106bb5825fc4b732cf6 [2023-11-12 00:56:27,805 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:56:27,828 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:56:27,830 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:56:27,832 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:56:27,832 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:56:27,834 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16550a5f-57f6-4dc9-9a3b-19f8a05b9818/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness.i [2023-11-12 00:56:30,980 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:56:31,575 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:56:31,577 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16550a5f-57f6-4dc9-9a3b-19f8a05b9818/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness.i [2023-11-12 00:56:31,623 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16550a5f-57f6-4dc9-9a3b-19f8a05b9818/bin/utaipan-verify-NcY6lQBIFX/data/9db5de571/4a5dc56433a942f6ad6351d8821700b6/FLAG363aa36f7 [2023-11-12 00:56:31,641 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16550a5f-57f6-4dc9-9a3b-19f8a05b9818/bin/utaipan-verify-NcY6lQBIFX/data/9db5de571/4a5dc56433a942f6ad6351d8821700b6 [2023-11-12 00:56:31,647 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:56:31,649 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:56:31,652 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:56:31,653 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:56:31,658 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:56:31,661 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:56:31" (1/1) ... [2023-11-12 00:56:31,662 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c7bddab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:31, skipping insertion in model container [2023-11-12 00:56:31,662 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:56:31" (1/1) ... [2023-11-12 00:56:31,805 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:56:32,118 WARN L240 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_16550a5f-57f6-4dc9-9a3b-19f8a05b9818/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness.i[4497,4510] [2023-11-12 00:56:32,127 WARN L240 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_16550a5f-57f6-4dc9-9a3b-19f8a05b9818/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness.i[4557,4570] [2023-11-12 00:56:33,415 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:56:33,416 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:56:33,417 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:56:33,418 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:56:33,419 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:56:33,444 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:56:33,445 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:56:33,447 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:56:33,448 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:56:34,053 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 00:56:34,055 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 00:56:34,056 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 00:56:34,058 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 00:56:34,060 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 00:56:34,060 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 00:56:34,061 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 00:56:34,062 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 00:56:34,063 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 00:56:34,064 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 00:56:34,474 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:56:34,475 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:56:34,580 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:56:34,656 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:56:34,680 WARN L240 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_16550a5f-57f6-4dc9-9a3b-19f8a05b9818/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness.i[4497,4510] [2023-11-12 00:56:34,681 WARN L240 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_16550a5f-57f6-4dc9-9a3b-19f8a05b9818/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness.i[4557,4570] [2023-11-12 00:56:34,738 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:56:34,739 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:56:34,740 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:56:34,740 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:56:34,741 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:56:34,757 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:56:34,758 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:56:34,759 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:56:34,760 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:56:34,805 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 00:56:34,807 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 00:56:34,808 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 00:56:34,808 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 00:56:34,809 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 00:56:34,810 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 00:56:34,810 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 00:56:34,814 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 00:56:34,814 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 00:56:34,815 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 00:56:34,919 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8269] [2023-11-12 00:56:34,920 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:56:34,922 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:56:34,936 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8755-8766] [2023-11-12 00:56:34,967 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:56:35,352 WARN L672 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:56:35,353 WARN L672 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:56:35,353 WARN L672 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:56:35,353 WARN L672 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:56:35,354 WARN L672 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:56:35,354 WARN L672 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:56:35,355 WARN L672 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:56:35,355 WARN L672 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:56:35,355 WARN L672 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:56:35,356 WARN L672 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:56:35,356 WARN L672 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:56:35,357 WARN L672 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:56:35,357 WARN L672 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:56:35,357 WARN L672 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:56:35,357 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:56:35,358 WARN L672 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:56:35,358 WARN L672 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:56:35,358 WARN L672 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:56:35,366 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:56:35,368 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:35 WrapperNode [2023-11-12 00:56:35,368 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:56:35,369 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:56:35,370 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:56:35,370 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:56:35,378 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:35" (1/1) ... [2023-11-12 00:56:35,476 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:35" (1/1) ... [2023-11-12 00:56:35,555 INFO L138 Inliner]: procedures = 689, calls = 2645, calls flagged for inlining = 60, calls inlined = 7, statements flattened = 883 [2023-11-12 00:56:35,556 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:56:35,557 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:56:35,557 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:56:35,557 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:56:35,566 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:35" (1/1) ... [2023-11-12 00:56:35,567 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:35" (1/1) ... [2023-11-12 00:56:35,624 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:35" (1/1) ... [2023-11-12 00:56:35,625 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:35" (1/1) ... [2023-11-12 00:56:35,666 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:35" (1/1) ... [2023-11-12 00:56:35,669 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:35" (1/1) ... [2023-11-12 00:56:35,676 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:35" (1/1) ... [2023-11-12 00:56:35,682 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:35" (1/1) ... [2023-11-12 00:56:35,695 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:56:35,696 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:56:35,696 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:56:35,696 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:56:35,712 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:35" (1/1) ... [2023-11-12 00:56:35,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:56:35,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16550a5f-57f6-4dc9-9a3b-19f8a05b9818/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:56:35,742 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16550a5f-57f6-4dc9-9a3b-19f8a05b9818/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:56:35,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16550a5f-57f6-4dc9-9a3b-19f8a05b9818/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:56:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2023-11-12 00:56:35,787 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2023-11-12 00:56:35,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:56:35,787 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-12 00:56:35,787 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-12 00:56:35,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:56:35,787 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 00:56:35,788 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 00:56:35,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:56:35,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:56:35,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:56:35,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:56:35,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:56:35,789 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-12 00:56:35,789 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-12 00:56:35,790 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-11-12 00:56:35,790 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-11-12 00:56:35,790 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:56:35,790 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:56:35,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:56:35,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:56:35,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:56:35,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:56:35,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:56:36,146 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:56:36,148 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:56:37,802 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:56:38,054 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:56:38,055 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 00:56:38,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:56:38 BoogieIcfgContainer [2023-11-12 00:56:38,058 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:56:38,060 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:56:38,061 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:56:38,064 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:56:38,064 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:56:31" (1/3) ... [2023-11-12 00:56:38,065 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@771b97a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:56:38, skipping insertion in model container [2023-11-12 00:56:38,065 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:35" (2/3) ... [2023-11-12 00:56:38,066 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@771b97a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:56:38, skipping insertion in model container [2023-11-12 00:56:38,066 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:56:38" (3/3) ... [2023-11-12 00:56:38,067 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_advance_harness.i [2023-11-12 00:56:38,088 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:56:38,088 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:56:38,138 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:56:38,144 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=LoopHeads, 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;@46d35b9b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:56:38,144 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:56:38,149 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 35 states have (on average 1.2) internal successors, (42), 36 states have internal predecessors, (42), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-12 00:56:38,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-12 00:56:38,157 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:56:38,158 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:56:38,158 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:56:38,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:56:38,164 INFO L85 PathProgramCache]: Analyzing trace with hash -480854068, now seen corresponding path program 1 times [2023-11-12 00:56:38,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:56:38,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075017458] [2023-11-12 00:56:38,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:38,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:56:46,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:59,563 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:56:59,563 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:56:59,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075017458] [2023-11-12 00:56:59,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075017458] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:56:59,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577474582] [2023-11-12 00:56:59,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:59,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:56:59,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16550a5f-57f6-4dc9-9a3b-19f8a05b9818/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:56:59,572 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16550a5f-57f6-4dc9-9a3b-19f8a05b9818/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:56:59,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16550a5f-57f6-4dc9-9a3b-19f8a05b9818/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:57:00,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:57:00,760 INFO L262 TraceCheckSpWp]: Trace formula consists of 2505 conjuncts, 101 conjunts are in the unsatisfiable core [2023-11-12 00:57:00,785 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:57:00,864 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-12 00:57:01,185 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-12 00:57:01,191 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-12 00:57:01,198 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-12 00:57:01,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:57:01,756 INFO L322 Elim1Store]: treesize reduction 42, result has 25.0 percent of original size [2023-11-12 00:57:01,757 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 23 [2023-11-12 00:57:01,781 INFO L322 Elim1Store]: treesize reduction 29, result has 3.3 percent of original size [2023-11-12 00:57:01,782 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 1 [2023-11-12 00:57:01,857 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-12 00:57:01,858 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-12 00:57:04,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:57:04,621 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 200 treesize of output 218 [2023-11-12 00:57:04,675 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 145 treesize of output 158 [2023-11-12 00:57:04,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:57:04,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:57:04,756 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-12 00:57:04,758 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 154 treesize of output 182 [2023-11-12 00:57:04,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:57:04,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:57:04,838 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-12 00:57:04,839 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 148 treesize of output 176 [2023-11-12 00:57:04,977 INFO L322 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2023-11-12 00:57:04,977 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 16 treesize of output 18 [2023-11-12 00:57:05,378 INFO L351 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 21 treesize of output 17 [2023-11-12 00:57:05,389 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-11-12 00:57:05,408 INFO L351 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 22 treesize of output 18 [2023-11-12 00:57:05,420 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 11 [2023-11-12 00:57:05,706 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-12 00:57:05,707 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 11 [2023-11-12 00:57:05,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:57:05,792 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 138 [2023-11-12 00:57:05,954 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 34 [2023-11-12 00:57:05,963 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2023-11-12 00:57:05,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:57:06,006 INFO L322 Elim1Store]: treesize reduction 29, result has 3.3 percent of original size [2023-11-12 00:57:06,007 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 96 treesize of output 115 [2023-11-12 00:57:06,064 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-12 00:57:06,065 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 48 [2023-11-12 00:57:06,093 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 11 [2023-11-12 00:57:06,118 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 11 [2023-11-12 00:57:06,264 INFO L322 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-12 00:57:06,264 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 28 [2023-11-12 00:57:07,939 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:57:07,940 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:57:09,166 WARN L176 XnfTransformerHelper]: Simplifying conjunction of 10832 disjunctions. This might take some time...