./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15474095-c388-4020-ad16-7a4286ac6bcd/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15474095-c388-4020-ad16-7a4286ac6bcd/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_15474095-c388-4020-ad16-7a4286ac6bcd/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15474095-c388-4020-ad16-7a4286ac6bcd/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15474095-c388-4020-ad16-7a4286ac6bcd/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_15474095-c388-4020-ad16-7a4286ac6bcd/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 602c22a5759f33fe3c7a18e3ef1531ea38defb370e298f7d0c16de4a5734f1a7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 01:01:51,700 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 01:01:51,818 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15474095-c388-4020-ad16-7a4286ac6bcd/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 01:01:51,832 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 01:01:51,833 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 01:01:51,870 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 01:01:51,871 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 01:01:51,872 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 01:01:51,873 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 01:01:51,878 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 01:01:51,879 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 01:01:51,879 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 01:01:51,880 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 01:01:51,882 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 01:01:51,882 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 01:01:51,883 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 01:01:51,883 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 01:01:51,884 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 01:01:51,884 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 01:01:51,885 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 01:01:51,885 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 01:01:51,886 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 01:01:51,887 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 01:01:51,888 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 01:01:51,888 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 01:01:51,889 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 01:01:51,889 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 01:01:51,890 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 01:01:51,890 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 01:01:51,890 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 01:01:51,892 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 01:01:51,892 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 01:01:51,893 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 01:01:51,893 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:01:51,893 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 01:01:51,894 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 01:01:51,894 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 01:01:51,894 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 01:01:51,895 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 01:01:51,895 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 01:01:51,895 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 01:01:51,896 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 01:01:51,896 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_15474095-c388-4020-ad16-7a4286ac6bcd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15474095-c388-4020-ad16-7a4286ac6bcd/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 602c22a5759f33fe3c7a18e3ef1531ea38defb370e298f7d0c16de4a5734f1a7 [2023-11-12 01:01:52,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 01:01:52,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 01:01:52,264 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 01:01:52,265 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 01:01:52,266 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 01:01:52,268 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15474095-c388-4020-ad16-7a4286ac6bcd/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness.i [2023-11-12 01:01:55,454 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 01:01:55,969 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 01:01:55,971 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15474095-c388-4020-ad16-7a4286ac6bcd/sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness.i [2023-11-12 01:01:56,019 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15474095-c388-4020-ad16-7a4286ac6bcd/bin/utaipan-verify-NcY6lQBIFX/data/06acad0f3/27238a71c8d543e782b39a40b0e5ab04/FLAG1e4532069 [2023-11-12 01:01:56,036 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15474095-c388-4020-ad16-7a4286ac6bcd/bin/utaipan-verify-NcY6lQBIFX/data/06acad0f3/27238a71c8d543e782b39a40b0e5ab04 [2023-11-12 01:01:56,041 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 01:01:56,043 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 01:01:56,046 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 01:01:56,047 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 01:01:56,052 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 01:01:56,053 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:01:56" (1/1) ... [2023-11-12 01:01:56,054 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a93bd08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:56, skipping insertion in model container [2023-11-12 01:01:56,054 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:01:56" (1/1) ... [2023-11-12 01:01:56,197 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 01:01:56,452 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_15474095-c388-4020-ad16-7a4286ac6bcd/sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness.i[4494,4507] [2023-11-12 01:01:56,460 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_15474095-c388-4020-ad16-7a4286ac6bcd/sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness.i[4554,4567] [2023-11-12 01:01:57,548 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:57,549 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:57,550 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:57,551 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:57,553 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:57,567 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:57,568 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:57,570 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:57,571 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:57,573 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:57,574 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:57,575 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:57,576 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:58,085 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 01:01:58,090 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 01:01:58,091 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 01:01:58,093 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 01:01:58,098 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 01:01:58,100 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 01:01:58,101 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 01:01:58,102 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 01:01:58,106 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 01:01:58,107 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 01:01:58,267 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:58,278 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:58,365 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:01:58,398 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 01:01:58,412 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_15474095-c388-4020-ad16-7a4286ac6bcd/sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness.i[4494,4507] [2023-11-12 01:01:58,413 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_15474095-c388-4020-ad16-7a4286ac6bcd/sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness.i[4554,4567] [2023-11-12 01:01:58,465 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:58,466 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:58,466 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:58,467 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:58,468 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:58,475 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:58,476 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:58,477 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:58,477 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:58,479 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:58,479 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:58,480 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:58,480 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:58,544 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 01:01:58,546 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 01:01:58,548 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 01:01:58,551 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 01:01:58,561 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 01:01:58,562 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 01:01:58,562 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 01:01:58,563 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 01:01:58,563 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 01:01:58,564 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 01:01:58,590 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:58,602 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:58,618 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7529-7540] [2023-11-12 01:01:58,654 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:01:58,952 WARN L672 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:58,952 WARN L672 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:58,952 WARN L672 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:58,953 WARN L672 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:58,953 WARN L672 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:58,954 WARN L672 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:58,954 WARN L672 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:58,954 WARN L672 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:58,955 WARN L672 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:58,955 WARN L672 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:58,955 WARN L672 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:58,955 WARN L672 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:58,955 WARN L672 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:58,956 WARN L672 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:58,956 WARN L672 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:58,964 INFO L206 MainTranslator]: Completed translation [2023-11-12 01:01:58,964 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:58 WrapperNode [2023-11-12 01:01:58,965 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 01:01:58,967 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 01:01:58,968 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 01:01:58,968 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 01:01:58,976 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:58" (1/1) ... [2023-11-12 01:01:59,080 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:58" (1/1) ... [2023-11-12 01:01:59,164 INFO L138 Inliner]: procedures = 689, calls = 1580, calls flagged for inlining = 46, calls inlined = 6, statements flattened = 586 [2023-11-12 01:01:59,164 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 01:01:59,165 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 01:01:59,165 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 01:01:59,165 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 01:01:59,177 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:58" (1/1) ... [2023-11-12 01:01:59,178 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:58" (1/1) ... [2023-11-12 01:01:59,185 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:58" (1/1) ... [2023-11-12 01:01:59,185 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:58" (1/1) ... [2023-11-12 01:01:59,231 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:58" (1/1) ... [2023-11-12 01:01:59,250 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:58" (1/1) ... [2023-11-12 01:01:59,273 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:58" (1/1) ... [2023-11-12 01:01:59,277 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:58" (1/1) ... [2023-11-12 01:01:59,288 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 01:01:59,304 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 01:01:59,304 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 01:01:59,304 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 01:01:59,305 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:58" (1/1) ... [2023-11-12 01:01:59,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:01:59,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15474095-c388-4020-ad16-7a4286ac6bcd/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:01:59,353 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15474095-c388-4020-ad16-7a4286ac6bcd/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 01:01:59,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15474095-c388-4020-ad16-7a4286ac6bcd/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 01:01:59,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 01:01:59,400 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2023-11-12 01:01:59,401 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2023-11-12 01:01:59,401 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2023-11-12 01:01:59,401 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2023-11-12 01:01:59,401 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-12 01:01:59,402 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-12 01:01:59,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 01:01:59,402 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-12 01:01:59,402 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-12 01:01:59,403 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 01:01:59,403 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 01:01:59,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 01:01:59,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 01:01:59,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 01:01:59,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 01:01:59,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 01:01:59,404 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-12 01:01:59,404 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-12 01:01:59,404 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-12 01:01:59,405 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-12 01:01:59,405 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 01:01:59,405 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 01:01:59,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 01:01:59,405 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_clear [2023-11-12 01:01:59,405 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_clear [2023-11-12 01:01:59,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 01:01:59,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 01:01:59,406 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-12 01:01:59,406 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-12 01:01:59,407 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-12 01:01:59,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-12 01:01:59,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 01:01:59,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 01:01:59,770 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 01:01:59,772 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 01:02:00,775 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 01:02:00,983 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 01:02:00,984 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 01:02:00,987 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:02:00 BoogieIcfgContainer [2023-11-12 01:02:00,987 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 01:02:00,990 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 01:02:00,991 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 01:02:00,994 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 01:02:00,995 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 01:01:56" (1/3) ... [2023-11-12 01:02:00,995 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dba39e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:02:00, skipping insertion in model container [2023-11-12 01:02:00,996 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:58" (2/3) ... [2023-11-12 01:02:00,996 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dba39e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:02:00, skipping insertion in model container [2023-11-12 01:02:00,996 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:02:00" (3/3) ... [2023-11-12 01:02:00,998 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_clear_harness.i [2023-11-12 01:02:01,020 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 01:02:01,020 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 01:02:01,076 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 01:02:01,083 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;@3d906ad5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 01:02:01,084 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 01:02:01,088 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 40 states have (on average 1.15) internal successors, (46), 41 states have internal predecessors, (46), 25 states have call successors, (25), 11 states have call predecessors, (25), 11 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-12 01:02:01,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-12 01:02:01,099 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:02:01,100 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:01,101 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:02:01,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:02:01,107 INFO L85 PathProgramCache]: Analyzing trace with hash 2006160867, now seen corresponding path program 1 times [2023-11-12 01:02:01,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:02:01,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160498557] [2023-11-12 01:02:01,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:01,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:02:01,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:02:02,122 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-12 01:02:02,123 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:02:02,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160498557] [2023-11-12 01:02:02,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160498557] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 01:02:02,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537035760] [2023-11-12 01:02:02,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:02,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 01:02:02,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15474095-c388-4020-ad16-7a4286ac6bcd/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:02:02,131 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15474095-c388-4020-ad16-7a4286ac6bcd/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 01:02:02,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15474095-c388-4020-ad16-7a4286ac6bcd/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 01:02:02,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:02:02,681 INFO L262 TraceCheckSpWp]: Trace formula consists of 1990 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 01:02:02,690 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:02:02,783 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-12 01:02:02,783 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 01:02:02,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537035760] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:02:02,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 01:02:02,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2023-11-12 01:02:02,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827932769] [2023-11-12 01:02:02,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:02:02,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 01:02:02,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:02:02,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 01:02:02,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-12 01:02:02,824 INFO L87 Difference]: Start difference. First operand has 78 states, 40 states have (on average 1.15) internal successors, (46), 41 states have internal predecessors, (46), 25 states have call successors, (25), 11 states have call predecessors, (25), 11 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-12 01:02:03,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:02:03,232 INFO L93 Difference]: Finished difference Result 130 states and 170 transitions. [2023-11-12 01:02:03,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 01:02:03,235 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 47 [2023-11-12 01:02:03,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:02:03,245 INFO L225 Difference]: With dead ends: 130 [2023-11-12 01:02:03,245 INFO L226 Difference]: Without dead ends: 78 [2023-11-12 01:02:03,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-12 01:02:03,253 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 17 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 01:02:03,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 238 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 01:02:03,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-11-12 01:02:03,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2023-11-12 01:02:03,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 40 states have (on average 1.125) internal successors, (45), 42 states have internal predecessors, (45), 25 states have call successors, (25), 11 states have call predecessors, (25), 12 states have return successors, (26), 24 states have call predecessors, (26), 24 states have call successors, (26) [2023-11-12 01:02:03,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 96 transitions. [2023-11-12 01:02:03,324 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 96 transitions. Word has length 47 [2023-11-12 01:02:03,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:02:03,325 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 96 transitions. [2023-11-12 01:02:03,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-12 01:02:03,326 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 96 transitions. [2023-11-12 01:02:03,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-12 01:02:03,329 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:02:03,329 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 01:02:03,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15474095-c388-4020-ad16-7a4286ac6bcd/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 01:02:03,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15474095-c388-4020-ad16-7a4286ac6bcd/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 01:02:03,531 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:02:03,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:02:03,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1705827380, now seen corresponding path program 1 times [2023-11-12 01:02:03,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:02:03,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988549048] [2023-11-12 01:02:03,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:03,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:02:03,655 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 01:02:03,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1790659118] [2023-11-12 01:02:03,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:03,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 01:02:03,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15474095-c388-4020-ad16-7a4286ac6bcd/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:02:03,657 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15474095-c388-4020-ad16-7a4286ac6bcd/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 01:02:03,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15474095-c388-4020-ad16-7a4286ac6bcd/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 01:02:04,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:02:04,264 INFO L262 TraceCheckSpWp]: Trace formula consists of 2122 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-12 01:02:04,270 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:02:04,382 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-12 01:02:04,383 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 01:02:04,383 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:02:04,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988549048] [2023-11-12 01:02:04,383 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 01:02:04,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1790659118] [2023-11-12 01:02:04,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1790659118] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:02:04,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:02:04,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 01:02:04,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893489596] [2023-11-12 01:02:04,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:02:04,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 01:02:04,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:02:04,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 01:02:04,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-12 01:02:04,388 INFO L87 Difference]: Start difference. First operand 78 states and 96 transitions. Second operand has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-12 01:02:04,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:02:04,922 INFO L93 Difference]: Finished difference Result 123 states and 149 transitions. [2023-11-12 01:02:04,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 01:02:04,924 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 56 [2023-11-12 01:02:04,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:02:04,925 INFO L225 Difference]: With dead ends: 123 [2023-11-12 01:02:04,926 INFO L226 Difference]: Without dead ends: 76 [2023-11-12 01:02:04,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-12 01:02:04,930 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 21 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-12 01:02:04,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 355 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-12 01:02:04,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-11-12 01:02:04,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2023-11-12 01:02:04,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 39 states have (on average 1.1025641025641026) internal successors, (43), 40 states have internal predecessors, (43), 25 states have call successors, (25), 11 states have call predecessors, (25), 11 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-12 01:02:04,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 92 transitions. [2023-11-12 01:02:04,949 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 92 transitions. Word has length 56 [2023-11-12 01:02:04,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:02:04,950 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 92 transitions. [2023-11-12 01:02:04,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-12 01:02:04,951 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 92 transitions. [2023-11-12 01:02:04,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-12 01:02:04,954 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:02:04,954 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:04,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15474095-c388-4020-ad16-7a4286ac6bcd/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 01:02:05,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15474095-c388-4020-ad16-7a4286ac6bcd/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 01:02:05,166 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:02:05,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:02:05,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1927327198, now seen corresponding path program 1 times [2023-11-12 01:02:05,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:02:05,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573370319] [2023-11-12 01:02:05,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:05,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:02:05,314 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 01:02:05,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [366813972] [2023-11-12 01:02:05,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:05,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 01:02:05,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15474095-c388-4020-ad16-7a4286ac6bcd/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:02:05,324 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15474095-c388-4020-ad16-7a4286ac6bcd/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 01:02:05,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15474095-c388-4020-ad16-7a4286ac6bcd/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 01:02:06,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:02:06,070 INFO L262 TraceCheckSpWp]: Trace formula consists of 2386 conjuncts, 291 conjunts are in the unsatisfiable core [2023-11-12 01:02:06,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:02:06,160 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 01:02:07,550 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-12 01:02:07,550 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 21 [2023-11-12 01:02:07,570 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-12 01:02:07,570 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 21 [2023-11-12 01:02:07,591 INFO L322 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2023-11-12 01:02:07,592 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 52 treesize of output 49 [2023-11-12 01:02:09,124 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-12 01:02:09,125 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 133 treesize of output 164 [2023-11-12 01:02:09,503 INFO L322 Elim1Store]: treesize reduction 217, result has 28.9 percent of original size [2023-11-12 01:02:09,503 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 120 treesize of output 214 [2023-11-12 01:02:09,631 INFO L322 Elim1Store]: treesize reduction 82, result has 11.8 percent of original size [2023-11-12 01:02:09,632 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 97 treesize of output 116 [2023-11-12 01:02:09,754 INFO L322 Elim1Store]: treesize reduction 82, result has 11.8 percent of original size [2023-11-12 01:02:09,754 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 65 treesize of output 88 [2023-11-12 01:02:13,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 01:02:13,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 01:02:13,643 INFO L322 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2023-11-12 01:02:13,644 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 25 [2023-11-12 01:02:13,802 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-12 01:02:13,806 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 39 treesize of output 25 [2023-11-12 01:02:13,937 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2023-11-12 01:02:13,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 01:02:14,005 INFO L322 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-11-12 01:02:14,005 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 39 treesize of output 25 [2023-11-12 01:02:14,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 01:02:14,117 INFO L322 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-11-12 01:02:14,117 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 25 [2023-11-12 01:02:14,442 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2023-11-12 01:02:14,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 01:02:14,496 INFO L322 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-11-12 01:02:14,497 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 39 treesize of output 25 [2023-11-12 01:02:17,113 INFO L322 Elim1Store]: treesize reduction 45, result has 10.0 percent of original size [2023-11-12 01:02:17,114 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 case distinctions, treesize of input 33 treesize of output 19 [2023-11-12 01:02:17,506 INFO L322 Elim1Store]: treesize reduction 118, result has 0.8 percent of original size [2023-11-12 01:02:17,507 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 43 treesize of output 1 [2023-11-12 01:02:17,602 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-12 01:02:17,629 INFO L322 Elim1Store]: treesize reduction 145, result has 0.7 percent of original size [2023-11-12 01:02:17,629 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 41 treesize of output 1 [2023-11-12 01:02:18,705 INFO L322 Elim1Store]: treesize reduction 44, result has 44.3 percent of original size [2023-11-12 01:02:18,705 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 7 case distinctions, treesize of input 39 treesize of output 54 [2023-11-12 01:02:18,783 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2023-11-12 01:02:20,094 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2023-11-12 01:02:20,756 INFO L322 Elim1Store]: treesize reduction 37, result has 11.9 percent of original size [2023-11-12 01:02:20,756 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 28 treesize of output 16 [2023-11-12 01:02:20,960 INFO L322 Elim1Store]: treesize reduction 37, result has 11.9 percent of original size [2023-11-12 01:02:20,961 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 4 case distinctions, treesize of input 28 treesize of output 16 [2023-11-12 01:02:29,647 INFO L322 Elim1Store]: treesize reduction 1036, result has 18.8 percent of original size [2023-11-12 01:02:29,648 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 135 case distinctions, treesize of input 1182 treesize of output 1337