./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_copy_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_copy_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire --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 3a98a47bac7562a35bba31573ebdfd704a9d27baca1b439deea796ac12a0961b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:35:43,298 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:35:43,365 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 20:35:43,370 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:35:43,371 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:35:43,394 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:35:43,395 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:35:43,396 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:35:43,397 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:35:43,397 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:35:43,398 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:35:43,399 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:35:43,399 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:35:43,400 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:35:43,400 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:35:43,401 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:35:43,402 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:35:43,402 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:35:43,403 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:35:43,404 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:35:43,404 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:35:43,405 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:35:43,406 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:35:43,407 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:35:43,407 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:35:43,408 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:35:43,409 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:35:43,409 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:35:43,410 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:35:43,411 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:35:43,411 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:35:43,412 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:35:43,412 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:35:43,413 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:35:43,414 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:35:43,414 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:35:43,415 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:35:43,415 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:35:43,416 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:35:43,416 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:35:43,416 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:35:43,417 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:35:43,417 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:35:43,418 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:35:43,418 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_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a98a47bac7562a35bba31573ebdfd704a9d27baca1b439deea796ac12a0961b [2023-11-23 20:35:43,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:35:43,818 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:35:43,821 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:35:43,822 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:35:43,823 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:35:43,824 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/aws-c-common/aws_array_list_copy_harness.i [2023-11-23 20:35:46,966 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:35:47,588 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:35:47,589 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/sv-benchmarks/c/aws-c-common/aws_array_list_copy_harness.i [2023-11-23 20:35:47,633 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/data/91b734e2c/6f82526b31d74f84bc25003af8c510d6/FLAGf264f15ee [2023-11-23 20:35:47,652 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/data/91b734e2c/6f82526b31d74f84bc25003af8c510d6 [2023-11-23 20:35:47,656 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:35:47,660 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:35:47,663 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:35:47,663 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:35:47,669 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:35:47,672 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:35:47" (1/1) ... [2023-11-23 20:35:47,674 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57664bdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:47, skipping insertion in model container [2023-11-23 20:35:47,674 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:35:47" (1/1) ... [2023-11-23 20:35:47,839 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:35:48,155 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_c77d3db3-8239-40ef-88a6-a09fc370f5bc/sv-benchmarks/c/aws-c-common/aws_array_list_copy_harness.i[4493,4506] [2023-11-23 20:35:48,164 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_c77d3db3-8239-40ef-88a6-a09fc370f5bc/sv-benchmarks/c/aws-c-common/aws_array_list_copy_harness.i[4553,4566] [2023-11-23 20:35:49,403 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:35:49,404 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:35:49,405 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:35:49,406 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:35:49,407 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:35:49,431 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:35:49,432 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:35:49,435 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:35:49,436 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:35:49,438 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:35:49,439 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:35:49,446 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:35:49,447 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:35:50,073 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 20:35:50,075 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 20:35:50,076 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 20:35:50,077 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 20:35:50,079 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 20:35:50,080 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 20:35:50,081 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 20:35:50,082 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 20:35:50,082 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 20:35:50,083 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 20:35:50,258 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:35:50,258 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:35:50,264 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:35:50,272 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:35:50,361 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:35:50,423 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:35:50,454 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_c77d3db3-8239-40ef-88a6-a09fc370f5bc/sv-benchmarks/c/aws-c-common/aws_array_list_copy_harness.i[4493,4506] [2023-11-23 20:35:50,456 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_c77d3db3-8239-40ef-88a6-a09fc370f5bc/sv-benchmarks/c/aws-c-common/aws_array_list_copy_harness.i[4553,4566] [2023-11-23 20:35:50,561 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:35:50,562 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:35:50,562 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:35:50,562 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:35:50,566 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:35:50,576 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:35:50,577 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:35:50,578 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:35:50,579 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:35:50,580 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:35:50,581 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:35:50,582 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:35:50,584 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:35:50,662 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 20:35:50,663 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 20:35:50,665 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 20:35:50,666 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 20:35:50,667 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 20:35:50,672 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 20:35:50,673 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 20:35:50,673 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 20:35:50,674 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 20:35:50,674 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 20:35:50,723 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:35:50,723 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:35:50,724 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:35:50,728 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 20:35:50,739 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7775-7786] [2023-11-23 20:35:50,781 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:35:51,044 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:35:51,045 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:35:51,045 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:35:51,045 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:35:51,045 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:35:51,045 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:35:51,046 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:35:51,046 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:35:51,046 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:35:51,046 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:35:51,046 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:35:51,046 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:35:51,047 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:35:51,047 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:35:51,047 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:35:51,055 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:35:51,055 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:51 WrapperNode [2023-11-23 20:35:51,055 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:35:51,057 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:35:51,057 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:35:51,057 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:35:51,065 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:51" (1/1) ... [2023-11-23 20:35:51,162 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:51" (1/1) ... [2023-11-23 20:35:51,288 INFO L138 Inliner]: procedures = 690, calls = 1674, calls flagged for inlining = 52, calls inlined = 7, statements flattened = 696 [2023-11-23 20:35:51,289 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:35:51,289 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:35:51,290 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:35:51,290 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:35:51,299 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:51" (1/1) ... [2023-11-23 20:35:51,300 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:51" (1/1) ... [2023-11-23 20:35:51,311 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:51" (1/1) ... [2023-11-23 20:35:51,311 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:51" (1/1) ... [2023-11-23 20:35:51,379 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:51" (1/1) ... [2023-11-23 20:35:51,382 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:51" (1/1) ... [2023-11-23 20:35:51,405 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:51" (1/1) ... [2023-11-23 20:35:51,410 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:51" (1/1) ... [2023-11-23 20:35:51,440 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:35:51,441 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:35:51,442 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:35:51,442 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:35:51,443 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:51" (1/1) ... [2023-11-23 20:35:51,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:35:51,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:35:51,478 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:35:51,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:35:51,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:35:51,530 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2023-11-23 20:35:51,530 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2023-11-23 20:35:51,530 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2023-11-23 20:35:51,530 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2023-11-23 20:35:51,530 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-23 20:35:51,531 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-23 20:35:51,531 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2023-11-23 20:35:51,531 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2023-11-23 20:35:51,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:35:51,532 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-23 20:35:51,532 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-23 20:35:51,532 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 20:35:51,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 20:35:51,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 20:35:51,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:35:51,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 20:35:51,534 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2023-11-23 20:35:51,534 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2023-11-23 20:35:51,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:35:51,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:35:51,535 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-23 20:35:51,535 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-23 20:35:51,535 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-23 20:35:51,536 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-23 20:35:51,536 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2023-11-23 20:35:51,537 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2023-11-23 20:35:51,537 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2023-11-23 20:35:51,537 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2023-11-23 20:35:51,537 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:35:51,537 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:35:51,538 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2023-11-23 20:35:51,538 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2023-11-23 20:35:51,538 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2023-11-23 20:35:51,538 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2023-11-23 20:35:51,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:35:51,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 20:35:51,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 20:35:51,539 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-23 20:35:51,539 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-23 20:35:51,539 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-23 20:35:51,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-23 20:35:51,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:35:51,540 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2023-11-23 20:35:51,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2023-11-23 20:35:51,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:35:51,909 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:35:51,917 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:35:52,883 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:35:53,077 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:35:53,078 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:35:53,080 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:35:53 BoogieIcfgContainer [2023-11-23 20:35:53,080 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:35:53,084 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:35:53,084 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:35:53,088 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:35:53,088 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:35:47" (1/3) ... [2023-11-23 20:35:53,090 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3909352 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:35:53, skipping insertion in model container [2023-11-23 20:35:53,090 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:51" (2/3) ... [2023-11-23 20:35:53,091 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3909352 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:35:53, skipping insertion in model container [2023-11-23 20:35:53,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:35:53" (3/3) ... [2023-11-23 20:35:53,094 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_copy_harness.i [2023-11-23 20:35:53,115 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:35:53,115 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:35:53,188 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:35:53,200 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;@703b4a49, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:35:53,201 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:35:53,206 INFO L276 IsEmpty]: Start isEmpty. Operand has 180 states, 90 states have (on average 1.1777777777777778) internal successors, (106), 91 states have internal predecessors, (106), 71 states have call successors, (71), 17 states have call predecessors, (71), 17 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2023-11-23 20:35:53,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-23 20:35:53,228 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:35:53,229 INFO L195 NwaCegarLoop]: trace histogram [12, 5, 5, 5, 2, 2, 2, 2, 2, 2, 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] [2023-11-23 20:35:53,229 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:35:53,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:35:53,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1477042211, now seen corresponding path program 1 times [2023-11-23 20:35:53,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:35:53,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552626426] [2023-11-23 20:35:53,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:53,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:35:53,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:35:53,943 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:35:53,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552626426] [2023-11-23 20:35:53,944 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-23 20:35:53,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693810713] [2023-11-23 20:35:53,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:53,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:35:53,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:35:53,952 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:35:53,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 20:35:54,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:35:54,593 INFO L262 TraceCheckSpWp]: Trace formula consists of 2313 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 20:35:54,605 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:35:54,726 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-23 20:35:54,727 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:35:54,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693810713] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:35:54,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:35:54,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 20:35:54,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761430203] [2023-11-23 20:35:54,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:35:54,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 20:35:54,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:35:54,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 20:35:54,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:35:54,769 INFO L87 Difference]: Start difference. First operand has 180 states, 90 states have (on average 1.1777777777777778) internal successors, (106), 91 states have internal predecessors, (106), 71 states have call successors, (71), 17 states have call predecessors, (71), 17 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2023-11-23 20:35:55,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:35:55,800 INFO L93 Difference]: Finished difference Result 356 states and 514 transitions. [2023-11-23 20:35:55,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 20:35:55,805 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 112 [2023-11-23 20:35:55,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:35:55,818 INFO L225 Difference]: With dead ends: 356 [2023-11-23 20:35:55,818 INFO L226 Difference]: Without dead ends: 180 [2023-11-23 20:35:55,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 20:35:55,827 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 49 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 719 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-23 20:35:55,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 719 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-23 20:35:55,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-11-23 20:35:55,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2023-11-23 20:35:55,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 90 states have (on average 1.1666666666666667) internal successors, (105), 92 states have internal predecessors, (105), 71 states have call successors, (71), 17 states have call predecessors, (71), 18 states have return successors, (82), 70 states have call predecessors, (82), 70 states have call successors, (82) [2023-11-23 20:35:55,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 258 transitions. [2023-11-23 20:35:55,944 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 258 transitions. Word has length 112 [2023-11-23 20:35:55,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:35:55,945 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 258 transitions. [2023-11-23 20:35:55,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2023-11-23 20:35:55,946 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 258 transitions. [2023-11-23 20:35:55,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-23 20:35:55,949 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:35:55,950 INFO L195 NwaCegarLoop]: trace histogram [12, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-23 20:35:55,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 20:35:56,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:35:56,169 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:35:56,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:35:56,169 INFO L85 PathProgramCache]: Analyzing trace with hash -99607438, now seen corresponding path program 1 times [2023-11-23 20:35:56,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:35:56,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915626442] [2023-11-23 20:35:56,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:56,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:35:56,345 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 20:35:56,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1867975352] [2023-11-23 20:35:56,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:56,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:35:56,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:35:56,348 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:35:56,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 20:35:56,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:35:56,978 INFO L262 TraceCheckSpWp]: Trace formula consists of 2445 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 20:35:56,986 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:35:57,075 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2023-11-23 20:35:57,075 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:35:57,076 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:35:57,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915626442] [2023-11-23 20:35:57,076 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 20:35:57,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1867975352] [2023-11-23 20:35:57,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1867975352] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:35:57,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:35:57,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 20:35:57,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527522538] [2023-11-23 20:35:57,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:35:57,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 20:35:57,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:35:57,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 20:35:57,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:35:57,082 INFO L87 Difference]: Start difference. First operand 180 states and 258 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2023-11-23 20:35:57,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:35:57,970 INFO L93 Difference]: Finished difference Result 330 states and 471 transitions. [2023-11-23 20:35:57,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 20:35:57,971 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 121 [2023-11-23 20:35:57,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:35:57,975 INFO L225 Difference]: With dead ends: 330 [2023-11-23 20:35:57,975 INFO L226 Difference]: Without dead ends: 180 [2023-11-23 20:35:57,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 20:35:57,978 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 47 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 719 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 20:35:57,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 719 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-23 20:35:57,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-11-23 20:35:58,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2023-11-23 20:35:58,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 90 states have (on average 1.1666666666666667) internal successors, (105), 92 states have internal predecessors, (105), 71 states have call successors, (71), 17 states have call predecessors, (71), 18 states have return successors, (80), 70 states have call predecessors, (80), 70 states have call successors, (80) [2023-11-23 20:35:58,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 256 transitions. [2023-11-23 20:35:58,009 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 256 transitions. Word has length 121 [2023-11-23 20:35:58,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:35:58,010 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 256 transitions. [2023-11-23 20:35:58,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2023-11-23 20:35:58,010 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 256 transitions. [2023-11-23 20:35:58,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-23 20:35:58,013 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:35:58,014 INFO L195 NwaCegarLoop]: trace histogram [12, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-23 20:35:58,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 20:35:58,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:35:58,246 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:35:58,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:35:58,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1019576401, now seen corresponding path program 2 times [2023-11-23 20:35:58,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:35:58,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393810969] [2023-11-23 20:35:58,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:58,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:35:58,403 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 20:35:58,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1986779011] [2023-11-23 20:35:58,407 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 20:35:58,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:35:58,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:35:58,408 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:35:58,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 20:35:58,925 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-11-23 20:35:58,925 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 20:35:58,933 INFO L262 TraceCheckSpWp]: Trace formula consists of 1912 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 20:35:58,939 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:35:58,971 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2023-11-23 20:35:58,974 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:35:58,974 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:35:58,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393810969] [2023-11-23 20:35:58,975 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 20:35:58,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1986779011] [2023-11-23 20:35:58,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1986779011] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:35:58,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:35:58,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 20:35:58,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295013047] [2023-11-23 20:35:58,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:35:58,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 20:35:58,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:35:58,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 20:35:58,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:35:58,982 INFO L87 Difference]: Start difference. First operand 180 states and 256 transitions. Second operand has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-23 20:35:59,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:35:59,593 INFO L93 Difference]: Finished difference Result 228 states and 318 transitions. [2023-11-23 20:35:59,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 20:35:59,594 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) Word has length 130 [2023-11-23 20:35:59,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:35:59,597 INFO L225 Difference]: With dead ends: 228 [2023-11-23 20:35:59,597 INFO L226 Difference]: Without dead ends: 184 [2023-11-23 20:35:59,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 20:35:59,599 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 1 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 894 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 20:35:59,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 894 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 20:35:59,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2023-11-23 20:35:59,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2023-11-23 20:35:59,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 93 states have (on average 1.1612903225806452) internal successors, (108), 95 states have internal predecessors, (108), 71 states have call successors, (71), 17 states have call predecessors, (71), 19 states have return successors, (82), 71 states have call predecessors, (82), 70 states have call successors, (82) [2023-11-23 20:35:59,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 261 transitions. [2023-11-23 20:35:59,655 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 261 transitions. Word has length 130 [2023-11-23 20:35:59,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:35:59,656 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 261 transitions. [2023-11-23 20:35:59,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-23 20:35:59,656 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 261 transitions. [2023-11-23 20:35:59,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-23 20:35:59,658 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:35:59,659 INFO L195 NwaCegarLoop]: trace histogram [12, 5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-23 20:35:59,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 20:35:59,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:35:59,879 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:35:59,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:35:59,879 INFO L85 PathProgramCache]: Analyzing trace with hash 2013856956, now seen corresponding path program 1 times [2023-11-23 20:35:59,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:35:59,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683041845] [2023-11-23 20:35:59,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:59,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:35:59,981 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 20:35:59,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [985103683] [2023-11-23 20:35:59,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:59,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:35:59,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:35:59,983 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:36:00,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 20:36:00,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:00,562 INFO L262 TraceCheckSpWp]: Trace formula consists of 2576 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 20:36:00,568 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:36:00,651 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2023-11-23 20:36:00,651 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:36:00,651 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:36:00,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683041845] [2023-11-23 20:36:00,651 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 20:36:00,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985103683] [2023-11-23 20:36:00,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985103683] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:36:00,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:36:00,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 20:36:00,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474175578] [2023-11-23 20:36:00,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:36:00,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 20:36:00,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:36:00,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 20:36:00,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 20:36:00,655 INFO L87 Difference]: Start difference. First operand 184 states and 261 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-11-23 20:36:01,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:36:01,668 INFO L93 Difference]: Finished difference Result 327 states and 460 transitions. [2023-11-23 20:36:01,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 20:36:01,669 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 134 [2023-11-23 20:36:01,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:36:01,672 INFO L225 Difference]: With dead ends: 327 [2023-11-23 20:36:01,672 INFO L226 Difference]: Without dead ends: 184 [2023-11-23 20:36:01,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-23 20:36:01,674 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 75 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-23 20:36:01,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 852 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-23 20:36:01,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2023-11-23 20:36:01,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2023-11-23 20:36:01,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 93 states have (on average 1.1612903225806452) internal successors, (108), 95 states have internal predecessors, (108), 71 states have call successors, (71), 17 states have call predecessors, (71), 19 states have return successors, (77), 71 states have call predecessors, (77), 70 states have call successors, (77) [2023-11-23 20:36:01,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 256 transitions. [2023-11-23 20:36:01,704 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 256 transitions. Word has length 134 [2023-11-23 20:36:01,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:36:01,706 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 256 transitions. [2023-11-23 20:36:01,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-11-23 20:36:01,706 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 256 transitions. [2023-11-23 20:36:01,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-11-23 20:36:01,713 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:36:01,713 INFO L195 NwaCegarLoop]: trace histogram [12, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2023-11-23 20:36:01,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 20:36:01,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:36:01,936 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:36:01,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:36:01,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1503523002, now seen corresponding path program 1 times [2023-11-23 20:36:01,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:36:01,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954712541] [2023-11-23 20:36:01,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:01,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:36:02,099 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 20:36:02,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [735362503] [2023-11-23 20:36:02,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:02,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:36:02,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:36:02,114 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:36:02,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 20:36:02,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:02,773 INFO L262 TraceCheckSpWp]: Trace formula consists of 2721 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 20:36:02,781 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:36:02,897 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2023-11-23 20:36:02,898 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:36:02,898 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:36:02,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954712541] [2023-11-23 20:36:02,898 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 20:36:02,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735362503] [2023-11-23 20:36:02,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735362503] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:36:02,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:36:02,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 20:36:02,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730520930] [2023-11-23 20:36:02,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:36:02,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 20:36:02,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:36:02,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 20:36:02,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 20:36:02,903 INFO L87 Difference]: Start difference. First operand 184 states and 256 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2023-11-23 20:36:03,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:36:03,820 INFO L93 Difference]: Finished difference Result 324 states and 445 transitions. [2023-11-23 20:36:03,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 20:36:03,821 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 142 [2023-11-23 20:36:03,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:36:03,823 INFO L225 Difference]: With dead ends: 324 [2023-11-23 20:36:03,823 INFO L226 Difference]: Without dead ends: 182 [2023-11-23 20:36:03,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-23 20:36:03,825 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 74 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-23 20:36:03,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 850 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-23 20:36:03,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2023-11-23 20:36:03,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2023-11-23 20:36:03,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 92 states have (on average 1.1521739130434783) internal successors, (106), 93 states have internal predecessors, (106), 71 states have call successors, (71), 17 states have call predecessors, (71), 18 states have return successors, (72), 71 states have call predecessors, (72), 70 states have call successors, (72) [2023-11-23 20:36:03,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 249 transitions. [2023-11-23 20:36:03,842 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 249 transitions. Word has length 142 [2023-11-23 20:36:03,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:36:03,843 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 249 transitions. [2023-11-23 20:36:03,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2023-11-23 20:36:03,844 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 249 transitions. [2023-11-23 20:36:03,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-23 20:36:03,846 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:36:03,846 INFO L195 NwaCegarLoop]: trace histogram [12, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 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] [2023-11-23 20:36:03,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 20:36:04,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:36:04,057 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:36:04,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:36:04,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1508048001, now seen corresponding path program 1 times [2023-11-23 20:36:04,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:36:04,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918117082] [2023-11-23 20:36:04,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:04,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:36:04,171 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 20:36:04,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [269549894] [2023-11-23 20:36:04,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:04,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:36:04,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:36:04,173 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:36:04,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 20:36:04,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:04,902 INFO L262 TraceCheckSpWp]: Trace formula consists of 2853 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 20:36:04,910 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:36:04,960 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2023-11-23 20:36:04,961 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:36:04,964 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:36:04,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918117082] [2023-11-23 20:36:04,964 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 20:36:04,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [269549894] [2023-11-23 20:36:04,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [269549894] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:36:04,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:36:04,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 20:36:04,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462613916] [2023-11-23 20:36:04,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:36:04,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 20:36:04,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:36:04,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 20:36:04,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 20:36:04,966 INFO L87 Difference]: Start difference. First operand 182 states and 249 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-23 20:36:05,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:36:05,900 INFO L93 Difference]: Finished difference Result 227 states and 304 transitions. [2023-11-23 20:36:05,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 20:36:05,901 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 1 states have call successors, (24) Word has length 151 [2023-11-23 20:36:05,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:36:05,903 INFO L225 Difference]: With dead ends: 227 [2023-11-23 20:36:05,903 INFO L226 Difference]: Without dead ends: 191 [2023-11-23 20:36:05,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-23 20:36:05,904 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 4 mSDsluCounter, 885 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-23 20:36:05,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1108 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-23 20:36:05,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2023-11-23 20:36:05,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 184. [2023-11-23 20:36:05,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 94 states have (on average 1.148936170212766) internal successors, (108), 95 states have internal predecessors, (108), 71 states have call successors, (71), 17 states have call predecessors, (71), 18 states have return successors, (72), 71 states have call predecessors, (72), 70 states have call successors, (72) [2023-11-23 20:36:05,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 251 transitions. [2023-11-23 20:36:05,921 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 251 transitions. Word has length 151 [2023-11-23 20:36:05,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:36:05,922 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 251 transitions. [2023-11-23 20:36:05,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 1 states have call successors, (24) [2023-11-23 20:36:05,923 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 251 transitions. [2023-11-23 20:36:05,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-11-23 20:36:05,925 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:36:05,926 INFO L195 NwaCegarLoop]: trace histogram [12, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 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] [2023-11-23 20:36:05,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-23 20:36:06,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:36:06,141 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:36:06,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:36:06,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1134731249, now seen corresponding path program 1 times [2023-11-23 20:36:06,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:36:06,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250901476] [2023-11-23 20:36:06,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:06,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:36:06,260 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 20:36:06,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1514093036] [2023-11-23 20:36:06,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:06,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:36:06,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:36:06,262 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:36:06,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77d3db3-8239-40ef-88a6-a09fc370f5bc/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 20:36:08,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:08,544 INFO L262 TraceCheckSpWp]: Trace formula consists of 2972 conjuncts, 143 conjunts are in the unsatisfiable core [2023-11-23 20:36:08,566 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:36:08,619 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2023-11-23 20:36:08,620 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 13 [2023-11-23 20:36:09,078 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 25 treesize of output 13 [2023-11-23 20:36:09,088 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-11-23 20:36:17,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:36:17,721 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-23 20:36:17,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:36:17,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-23 20:36:17,796 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-23 20:36:17,797 INFO L378 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 1 case distinctions, treesize of input 11 treesize of output 11 [2023-11-23 20:36:29,575 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-23 20:36:29,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-23 20:36:30,013 WARN L876 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| (select (select |c_#memory_$Pointer$.base| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset|)))) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| (select (select |c_#memory_$Pointer$.offset| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset|))) |c_#memory_$Pointer$.offset|))) is different from true [2023-11-23 20:36:30,074 WARN L876 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 (select (select |c_#memory_$Pointer$.base| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0)))) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 (select (select |c_#memory_$Pointer$.offset| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0))) |c_#memory_$Pointer$.offset|))) is different from true [2023-11-23 20:36:30,151 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-23 20:36:30,169 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-23 20:36:41,362 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-23 20:36:41,395 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-23 20:36:41,522 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 165 proven. 48 refuted. 0 times theorem prover too weak. 91 trivial. 5 not checked. [2023-11-23 20:36:41,522 INFO L327 TraceCheckSpWp]: Computing backward predicates...