./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_0d6ec850-2791-4a1e-94a0-1f16fb2e8980/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6ec850-2791-4a1e-94a0-1f16fb2e8980/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6ec850-2791-4a1e-94a0-1f16fb2e8980/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6ec850-2791-4a1e-94a0-1f16fb2e8980/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6ec850-2791-4a1e-94a0-1f16fb2e8980/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6ec850-2791-4a1e-94a0-1f16fb2e8980/bin/utaipan-verify-SwPr7d2a91 --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 7e3410638a547f2efce35a13c7d23c64ee660b1c493ec273ce9d4043edc218c3 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:49:39,373 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:49:39,453 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6ec850-2791-4a1e-94a0-1f16fb2e8980/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-24 23:49:39,458 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:49:39,458 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:49:39,486 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:49:39,487 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:49:39,488 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:49:39,489 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:49:39,489 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:49:39,490 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:49:39,491 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:49:39,491 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:49:39,492 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:49:39,493 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:49:39,493 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:49:39,494 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:49:39,494 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:49:39,495 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:49:39,495 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:49:39,496 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:49:39,497 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:49:39,497 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:49:39,498 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:49:39,498 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:49:39,499 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:49:39,499 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:49:39,500 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:49:39,500 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:49:39,500 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:49:39,501 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:49:39,502 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:49:39,502 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:49:39,502 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:49:39,503 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:49:39,503 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:49:39,504 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:49:39,504 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:49:39,505 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:49:39,505 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:49:39,506 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:49:39,506 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:49:39,507 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:49:39,507 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:49:39,507 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_0d6ec850-2791-4a1e-94a0-1f16fb2e8980/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6ec850-2791-4a1e-94a0-1f16fb2e8980/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e3410638a547f2efce35a13c7d23c64ee660b1c493ec273ce9d4043edc218c3 [2023-11-24 23:49:39,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:49:39,818 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:49:39,821 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:49:39,823 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:49:39,823 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:49:39,825 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6ec850-2791-4a1e-94a0-1f16fb2e8980/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i [2023-11-24 23:49:43,131 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:49:43,797 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:49:43,798 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6ec850-2791-4a1e-94a0-1f16fb2e8980/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i [2023-11-24 23:49:43,850 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6ec850-2791-4a1e-94a0-1f16fb2e8980/bin/utaipan-verify-SwPr7d2a91/data/b19b9438e/62156bc478ed49ca82d1bfe298c09e07/FLAG609effd51 [2023-11-24 23:49:43,871 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6ec850-2791-4a1e-94a0-1f16fb2e8980/bin/utaipan-verify-SwPr7d2a91/data/b19b9438e/62156bc478ed49ca82d1bfe298c09e07 [2023-11-24 23:49:43,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:49:43,879 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:49:43,882 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:49:43,882 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:49:43,887 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:49:43,888 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:49:43" (1/1) ... [2023-11-24 23:49:43,890 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6987a9f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:43, skipping insertion in model container [2023-11-24 23:49:43,890 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:49:43" (1/1) ... [2023-11-24 23:49:44,065 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:49:44,450 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_0d6ec850-2791-4a1e-94a0-1f16fb2e8980/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i[4492,4505] [2023-11-24 23:49:44,462 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_0d6ec850-2791-4a1e-94a0-1f16fb2e8980/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i[4552,4565] [2023-11-24 23:49:45,825 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:45,826 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:45,827 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:45,829 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:45,830 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:45,846 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:45,847 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:45,849 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:45,850 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:45,853 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:45,854 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:45,855 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:45,856 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:46,486 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-24 23:49:46,487 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-24 23:49:46,489 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-24 23:49:46,491 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-24 23:49:46,493 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-24 23:49:46,494 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-24 23:49:46,495 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-24 23:49:46,496 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-24 23:49:46,497 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-24 23:49:46,498 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-24 23:49:47,288 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:47,290 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:47,336 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:47,338 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:47,348 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:47,349 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:47,377 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:47,378 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:47,379 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:47,380 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:47,380 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:47,381 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:47,382 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:47,432 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:49:47,493 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:49:47,521 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_0d6ec850-2791-4a1e-94a0-1f16fb2e8980/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i[4492,4505] [2023-11-24 23:49:47,522 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_0d6ec850-2791-4a1e-94a0-1f16fb2e8980/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i[4552,4565] [2023-11-24 23:49:47,629 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:47,629 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:47,630 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:47,643 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:47,644 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:47,651 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:47,667 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:47,668 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:47,669 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:47,670 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:47,670 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:47,671 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:47,672 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:47,745 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-24 23:49:47,746 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-24 23:49:47,747 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-24 23:49:47,748 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-24 23:49:47,749 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-24 23:49:47,751 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-24 23:49:47,751 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-24 23:49:47,752 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-24 23:49:47,753 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-24 23:49:47,754 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-24 23:49:47,797 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7576-7587] [2023-11-24 23:49:47,906 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:47,907 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:47,915 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:47,915 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:47,919 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:47,919 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:47,934 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:47,934 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:47,935 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:47,936 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:47,936 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:47,936 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:47,937 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:49:47,963 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:49:48,252 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:49:48,253 WARN L675 CHandler]: The function equals_fn is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:49:48,253 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:49:48,253 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:49:48,253 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:49:48,253 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:49:48,253 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:49:48,254 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:49:48,254 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:49:48,254 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:49:48,254 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:49:48,254 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:49:48,254 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:49:48,255 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:49:48,255 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:49:48,255 WARN L675 CHandler]: The function callback is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:49:48,255 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:49:48,255 WARN L675 CHandler]: The function aws_array_list_ensure_capacity is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:49:48,263 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:49:48,263 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:48 WrapperNode [2023-11-24 23:49:48,263 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:49:48,264 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:49:48,265 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:49:48,265 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:49:48,295 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:48" (1/1) ... [2023-11-24 23:49:48,461 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:48" (1/1) ... [2023-11-24 23:49:48,603 INFO L138 Inliner]: procedures = 773, calls = 2490, calls flagged for inlining = 70, calls inlined = 25, statements flattened = 1457 [2023-11-24 23:49:48,604 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:49:48,605 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:49:48,605 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:49:48,605 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:49:48,615 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:48" (1/1) ... [2023-11-24 23:49:48,616 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:48" (1/1) ... [2023-11-24 23:49:48,637 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:48" (1/1) ... [2023-11-24 23:49:48,639 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:48" (1/1) ... [2023-11-24 23:49:48,706 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:48" (1/1) ... [2023-11-24 23:49:48,715 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:48" (1/1) ... [2023-11-24 23:49:48,728 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:48" (1/1) ... [2023-11-24 23:49:48,738 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:48" (1/1) ... [2023-11-24 23:49:48,757 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:49:48,758 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:49:48,758 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:49:48,758 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:49:48,759 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:48" (1/1) ... [2023-11-24 23:49:48,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:49:48,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6ec850-2791-4a1e-94a0-1f16fb2e8980/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:49:48,819 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6ec850-2791-4a1e-94a0-1f16fb2e8980/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:49:48,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6ec850-2791-4a1e-94a0-1f16fb2e8980/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:49:48,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-24 23:49:48,865 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-24 23:49:48,865 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-24 23:49:48,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2023-11-24 23:49:48,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:49:48,866 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-24 23:49:48,866 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-24 23:49:48,866 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 23:49:48,866 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 23:49:48,867 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2023-11-24 23:49:48,867 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2023-11-24 23:49:48,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 23:49:48,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:49:48,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 23:49:48,867 INFO L130 BoogieDeclarations]: Found specification of procedure s_emplace_item [2023-11-24 23:49:48,868 INFO L138 BoogieDeclarations]: Found implementation of procedure s_emplace_item [2023-11-24 23:49:48,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:49:48,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:49:48,869 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-24 23:49:48,870 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-24 23:49:48,870 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-24 23:49:48,870 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-24 23:49:48,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-24 23:49:48,870 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2023-11-24 23:49:48,870 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2023-11-24 23:49:48,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:49:48,871 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2023-11-24 23:49:48,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2023-11-24 23:49:48,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 23:49:48,871 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-24 23:49:48,871 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-24 23:49:48,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:49:48,872 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_for [2023-11-24 23:49:48,872 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_for [2023-11-24 23:49:48,872 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2023-11-24 23:49:48,872 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2023-11-24 23:49:48,872 INFO L130 BoogieDeclarations]: Found specification of procedure s_update_template_size [2023-11-24 23:49:48,872 INFO L138 BoogieDeclarations]: Found implementation of procedure s_update_template_size [2023-11-24 23:49:48,873 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_keys_eq [2023-11-24 23:49:48,873 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_keys_eq [2023-11-24 23:49:48,873 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_equals [2023-11-24 23:49:48,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_equals [2023-11-24 23:49:48,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:49:48,874 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2023-11-24 23:49:48,874 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2023-11-24 23:49:48,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-24 23:49:48,875 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_calloc [2023-11-24 23:49:48,875 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_calloc [2023-11-24 23:49:48,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-24 23:49:48,876 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2023-11-24 23:49:48,876 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2023-11-24 23:49:48,876 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-24 23:49:48,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-24 23:49:48,877 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_hasher [2023-11-24 23:49:48,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_hasher [2023-11-24 23:49:48,881 INFO L130 BoogieDeclarations]: Found specification of procedure s_safe_eq_check [2023-11-24 23:49:48,882 INFO L138 BoogieDeclarations]: Found implementation of procedure s_safe_eq_check [2023-11-24 23:49:48,882 INFO L130 BoogieDeclarations]: Found specification of procedure s_find_entry [2023-11-24 23:49:48,882 INFO L138 BoogieDeclarations]: Found implementation of procedure s_find_entry [2023-11-24 23:49:48,883 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:49:48,883 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:49:48,884 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2023-11-24 23:49:48,884 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2023-11-24 23:49:48,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-24 23:49:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-24 23:49:48,890 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-24 23:49:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-24 23:49:48,891 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-24 23:49:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2023-11-24 23:49:48,891 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2023-11-24 23:49:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure s_alloc_state [2023-11-24 23:49:48,891 INFO L138 BoogieDeclarations]: Found implementation of procedure s_alloc_state [2023-11-24 23:49:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-24 23:49:48,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-24 23:49:48,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:49:49,418 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:49:49,422 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:49:49,829 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume !true; [2023-11-24 23:49:49,872 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !true; [2023-11-24 23:49:50,492 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##7: assume !true; [2023-11-24 23:49:50,492 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##41: assume !true; [2023-11-24 23:49:51,973 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:49:52,622 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:49:52,623 INFO L309 CfgBuilder]: Removed 11 assume(true) statements. [2023-11-24 23:49:52,625 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:49:52 BoogieIcfgContainer [2023-11-24 23:49:52,625 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:49:52,628 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:49:52,628 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:49:52,631 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:49:52,631 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:49:43" (1/3) ... [2023-11-24 23:49:52,633 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@318710e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:49:52, skipping insertion in model container [2023-11-24 23:49:52,633 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:48" (2/3) ... [2023-11-24 23:49:52,634 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@318710e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:49:52, skipping insertion in model container [2023-11-24 23:49:52,634 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:49:52" (3/3) ... [2023-11-24 23:49:52,635 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_hash_table_put_harness.i [2023-11-24 23:49:52,655 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:49:52,655 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:49:52,733 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:49:52,745 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;@6203739c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:49:52,746 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:49:52,753 INFO L276 IsEmpty]: Start isEmpty. Operand has 286 states, 173 states have (on average 1.260115606936416) internal successors, (218), 170 states have internal predecessors, (218), 86 states have call successors, (86), 29 states have call predecessors, (86), 29 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2023-11-24 23:49:52,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-24 23:49:52,772 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:49:52,773 INFO L195 NwaCegarLoop]: trace histogram [9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:49:52,774 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:49:52,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:49:52,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1095969560, now seen corresponding path program 1 times [2023-11-24 23:49:52,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:49:52,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734256888] [2023-11-24 23:49:52,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:49:52,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:49:53,330 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-24 23:49:53,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [91647187] [2023-11-24 23:49:53,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:49:53,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:49:53,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6ec850-2791-4a1e-94a0-1f16fb2e8980/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:49:53,352 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6ec850-2791-4a1e-94a0-1f16fb2e8980/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:49:53,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6ec850-2791-4a1e-94a0-1f16fb2e8980/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-24 23:49:54,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:49:54,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 2563 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-24 23:49:54,397 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:49:54,479 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-24 23:49:54,479 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:49:54,480 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:49:54,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734256888] [2023-11-24 23:49:54,480 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-24 23:49:54,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91647187] [2023-11-24 23:49:54,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91647187] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:49:54,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:49:54,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 23:49:54,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123550609] [2023-11-24 23:49:54,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:49:54,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:49:54,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:49:54,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:49:54,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:49:54,531 INFO L87 Difference]: Start difference. First operand has 286 states, 173 states have (on average 1.260115606936416) internal successors, (218), 170 states have internal predecessors, (218), 86 states have call successors, (86), 29 states have call predecessors, (86), 29 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) Second operand has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-24 23:49:58,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:49:58,043 INFO L93 Difference]: Finished difference Result 568 states and 799 transitions. [2023-11-24 23:49:58,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 23:49:58,045 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 95 [2023-11-24 23:49:58,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:49:58,060 INFO L225 Difference]: With dead ends: 568 [2023-11-24 23:49:58,060 INFO L226 Difference]: Without dead ends: 288 [2023-11-24 23:49:58,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-24 23:49:58,071 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 1 mSDsluCounter, 992 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1324 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-11-24 23:49:58,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1324 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-11-24 23:49:58,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2023-11-24 23:49:58,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 288. [2023-11-24 23:49:58,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 171 states have (on average 1.239766081871345) internal successors, (212), 172 states have internal predecessors, (212), 86 states have call successors, (86), 29 states have call predecessors, (86), 30 states have return successors, (89), 86 states have call predecessors, (89), 85 states have call successors, (89) [2023-11-24 23:49:58,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 387 transitions. [2023-11-24 23:49:58,154 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 387 transitions. Word has length 95 [2023-11-24 23:49:58,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:49:58,155 INFO L495 AbstractCegarLoop]: Abstraction has 288 states and 387 transitions. [2023-11-24 23:49:58,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-24 23:49:58,156 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 387 transitions. [2023-11-24 23:49:58,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-24 23:49:58,161 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:49:58,161 INFO L195 NwaCegarLoop]: trace histogram [9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:49:58,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6ec850-2791-4a1e-94a0-1f16fb2e8980/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-24 23:49:58,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6ec850-2791-4a1e-94a0-1f16fb2e8980/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-24 23:49:58,373 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:49:58,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:49:58,373 INFO L85 PathProgramCache]: Analyzing trace with hash 963460883, now seen corresponding path program 1 times [2023-11-24 23:49:58,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:49:58,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166755017] [2023-11-24 23:49:58,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:49:58,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:49:58,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:50:01,251 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-11-24 23:50:01,251 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:50:01,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166755017] [2023-11-24 23:50:01,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166755017] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:50:01,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:50:01,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-24 23:50:01,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464960537] [2023-11-24 23:50:01,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:50:01,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-24 23:50:01,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:50:01,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-24 23:50:01,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-24 23:50:01,258 INFO L87 Difference]: Start difference. First operand 288 states and 387 transitions. Second operand has 8 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2023-11-24 23:50:05,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:50:05,949 INFO L93 Difference]: Finished difference Result 560 states and 751 transitions. [2023-11-24 23:50:05,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-24 23:50:05,950 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 99 [2023-11-24 23:50:05,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:50:05,956 INFO L225 Difference]: With dead ends: 560 [2023-11-24 23:50:05,956 INFO L226 Difference]: Without dead ends: 290 [2023-11-24 23:50:05,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-24 23:50:05,968 INFO L413 NwaCegarLoop]: 328 mSDtfsCounter, 2 mSDsluCounter, 1531 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1859 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-11-24 23:50:05,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1859 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-11-24 23:50:05,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2023-11-24 23:50:06,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 290. [2023-11-24 23:50:06,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 172 states have (on average 1.2383720930232558) internal successors, (213), 174 states have internal predecessors, (213), 86 states have call successors, (86), 29 states have call predecessors, (86), 31 states have return successors, (90), 86 states have call predecessors, (90), 85 states have call successors, (90) [2023-11-24 23:50:06,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 389 transitions. [2023-11-24 23:50:06,007 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 389 transitions. Word has length 99 [2023-11-24 23:50:06,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:50:06,008 INFO L495 AbstractCegarLoop]: Abstraction has 290 states and 389 transitions. [2023-11-24 23:50:06,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2023-11-24 23:50:06,008 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 389 transitions. [2023-11-24 23:50:06,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-24 23:50:06,011 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:50:06,011 INFO L195 NwaCegarLoop]: trace histogram [9, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:50:06,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 23:50:06,012 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:50:06,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:50:06,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1831913361, now seen corresponding path program 1 times [2023-11-24 23:50:06,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:50:06,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814182202] [2023-11-24 23:50:06,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:50:06,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:50:06,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:50:07,884 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2023-11-24 23:50:07,884 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:50:07,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814182202] [2023-11-24 23:50:07,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814182202] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 23:50:07,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [92096500] [2023-11-24 23:50:07,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:50:07,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:50:07,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6ec850-2791-4a1e-94a0-1f16fb2e8980/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:50:07,888 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6ec850-2791-4a1e-94a0-1f16fb2e8980/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:50:07,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d6ec850-2791-4a1e-94a0-1f16fb2e8980/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-24 23:50:08,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:50:08,759 INFO L262 TraceCheckSpWp]: Trace formula consists of 2586 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-24 23:50:08,771 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:50:08,978 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-24 23:50:09,300 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-24 23:50:09,300 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:50:09,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [92096500] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:50:09,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 23:50:09,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [8] total 18 [2023-11-24 23:50:09,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278964040] [2023-11-24 23:50:09,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:50:09,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-24 23:50:09,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:50:09,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-24 23:50:09,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2023-11-24 23:50:09,304 INFO L87 Difference]: Start difference. First operand 290 states and 389 transitions. Second operand has 12 states, 9 states have (on average 5.444444444444445) internal successors, (49), 10 states have internal predecessors, (49), 5 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2023-11-24 23:50:13,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-24 23:50:15,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-24 23:50:17,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-24 23:50:19,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-24 23:50:21,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-24 23:50:24,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-24 23:50:26,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-24 23:50:28,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-24 23:50:30,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-24 23:50:32,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-24 23:50:35,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-24 23:50:38,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]