./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/bin/utaipan-verify-nQ1chXbOIh --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 c5ce5ecaf845e6855240a1053cf9bb98448187512cca05d9c176538088e49244 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:08:26,386 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:08:26,450 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 13:08:26,454 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:08:26,455 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:08:26,478 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:08:26,478 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:08:26,479 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:08:26,480 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:08:26,480 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:08:26,481 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:08:26,481 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:08:26,482 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:08:26,482 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 13:08:26,483 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:08:26,483 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:08:26,484 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 13:08:26,484 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 13:08:26,485 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:08:26,485 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 13:08:26,486 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 13:08:26,486 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 13:08:26,487 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:08:26,488 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:08:26,488 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 13:08:26,488 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:08:26,489 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:08:26,489 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:08:26,490 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:08:26,490 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:08:26,490 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:08:26,491 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:08:26,491 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:08:26,492 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:08:26,492 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:08:26,493 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:08:26,493 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:08:26,493 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:08:26,493 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 13:08:26,494 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 13:08:26,494 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:08:26,494 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:08:26,494 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:08:26,495 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:08:26,495 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_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5ce5ecaf845e6855240a1053cf9bb98448187512cca05d9c176538088e49244 [2023-12-02 13:08:26,707 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:08:26,727 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:08:26,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:08:26,731 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:08:26,731 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:08:26,732 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness_negated.i [2023-12-02 13:08:29,508 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:08:29,892 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:08:29,892 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness_negated.i [2023-12-02 13:08:29,923 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/bin/utaipan-verify-nQ1chXbOIh/data/b9fddd389/db800306d4ae4cfbaf1a4b90a40d6bbf/FLAG3cc2dc2ac [2023-12-02 13:08:29,937 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/bin/utaipan-verify-nQ1chXbOIh/data/b9fddd389/db800306d4ae4cfbaf1a4b90a40d6bbf [2023-12-02 13:08:29,940 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:08:29,941 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:08:29,943 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:08:29,943 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:08:29,948 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:08:29,949 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:08:29" (1/1) ... [2023-12-02 13:08:29,950 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f440d9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:29, skipping insertion in model container [2023-12-02 13:08:29,950 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:08:29" (1/1) ... [2023-12-02 13:08:30,077 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:08:30,327 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_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness_negated.i[4496,4509] [2023-12-02 13:08:30,336 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_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness_negated.i[4556,4569] [2023-12-02 13:08:31,087 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,088 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,088 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,089 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,091 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,106 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,107 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,109 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,110 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,112 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,113 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,114 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,114 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,466 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-12-02 13:08:31,468 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-12-02 13:08:31,469 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-12-02 13:08:31,470 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-12-02 13:08:31,471 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-12-02 13:08:31,472 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-12-02 13:08:31,473 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-12-02 13:08:31,474 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-12-02 13:08:31,474 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-12-02 13:08:31,475 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-12-02 13:08:31,642 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,649 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,709 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,710 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,711 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,711 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,711 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,712 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,712 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,713 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,713 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,714 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,714 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,714 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,715 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,718 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,718 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,718 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,719 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,722 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,723 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,730 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,731 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,732 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,749 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:08:31,781 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:08:31,795 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_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness_negated.i[4496,4509] [2023-12-02 13:08:31,795 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_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness_negated.i[4556,4569] [2023-12-02 13:08:31,833 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,833 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,833 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,834 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,834 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,841 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,841 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,842 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,842 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,843 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,844 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,844 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,845 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,909 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-12-02 13:08:31,910 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-12-02 13:08:31,910 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-12-02 13:08:31,911 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-12-02 13:08:31,912 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-12-02 13:08:31,912 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-12-02 13:08:31,913 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-12-02 13:08:31,913 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-12-02 13:08:31,914 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-12-02 13:08:31,915 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-12-02 13:08:31,948 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,953 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,959 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7739-7750] [2023-12-02 13:08:31,978 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,979 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,979 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,979 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,980 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,980 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,980 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,981 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,981 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,981 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,982 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,982 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,982 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,983 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,983 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,983 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,984 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,986 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,986 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,991 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,992 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:31,993 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 13:08:32,000 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:08:32,252 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:08:32,253 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:08:32,253 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:08:32,253 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:08:32,253 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:08:32,253 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:08:32,254 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:08:32,254 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:08:32,254 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:08:32,254 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:08:32,254 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:08:32,254 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:08:32,254 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:08:32,254 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:08:32,255 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:08:32,262 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:08:32,262 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:32 WrapperNode [2023-12-02 13:08:32,263 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:08:32,264 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:08:32,264 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:08:32,264 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:08:32,271 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:32" (1/1) ... [2023-12-02 13:08:32,334 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:32" (1/1) ... [2023-12-02 13:08:32,400 INFO L138 Inliner]: procedures = 696, calls = 1936, calls flagged for inlining = 59, calls inlined = 15, statements flattened = 1059 [2023-12-02 13:08:32,400 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:08:32,401 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:08:32,401 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:08:32,401 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:08:32,410 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:32" (1/1) ... [2023-12-02 13:08:32,411 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:32" (1/1) ... [2023-12-02 13:08:32,419 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:32" (1/1) ... [2023-12-02 13:08:32,419 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:32" (1/1) ... [2023-12-02 13:08:32,460 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:32" (1/1) ... [2023-12-02 13:08:32,466 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:32" (1/1) ... [2023-12-02 13:08:32,476 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:32" (1/1) ... [2023-12-02 13:08:32,485 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:32" (1/1) ... [2023-12-02 13:08:32,498 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:08:32,498 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:08:32,499 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:08:32,499 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:08:32,499 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:32" (1/1) ... [2023-12-02 13:08:32,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:08:32,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:08:32,551 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:08:32,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:08:32,583 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2023-12-02 13:08:32,583 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2023-12-02 13:08:32,583 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2023-12-02 13:08:32,583 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2023-12-02 13:08:32,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 13:08:32,583 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2023-12-02 13:08:32,584 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2023-12-02 13:08:32,584 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2023-12-02 13:08:32,584 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2023-12-02 13:08:32,584 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-12-02 13:08:32,584 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-12-02 13:08:32,584 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2023-12-02 13:08:32,584 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2023-12-02 13:08:32,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-02 13:08:32,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 13:08:32,584 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-12-02 13:08:32,585 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-12-02 13:08:32,585 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-02 13:08:32,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-02 13:08:32,585 INFO L130 BoogieDeclarations]: Found specification of procedure s_remove_node [2023-12-02 13:08:32,585 INFO L138 BoogieDeclarations]: Found implementation of procedure s_remove_node [2023-12-02 13:08:32,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 13:08:32,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:08:32,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 13:08:32,585 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2023-12-02 13:08:32,585 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2023-12-02 13:08:32,586 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2023-12-02 13:08:32,586 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2023-12-02 13:08:32,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:08:32,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:08:32,586 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-12-02 13:08:32,586 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-12-02 13:08:32,586 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2023-12-02 13:08:32,586 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2023-12-02 13:08:32,586 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-12-02 13:08:32,587 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-12-02 13:08:32,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-12-02 13:08:32,587 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2023-12-02 13:08:32,587 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2023-12-02 13:08:32,587 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2023-12-02 13:08:32,587 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2023-12-02 13:08:32,587 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2023-12-02 13:08:32,587 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2023-12-02 13:08:32,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-12-02 13:08:32,587 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-12-02 13:08:32,588 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 13:08:32,588 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 13:08:32,588 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2023-12-02 13:08:32,588 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2023-12-02 13:08:32,588 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2023-12-02 13:08:32,588 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2023-12-02 13:08:32,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 13:08:32,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 13:08:32,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 13:08:32,589 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2023-12-02 13:08:32,589 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2023-12-02 13:08:32,589 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-12-02 13:08:32,589 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-12-02 13:08:32,589 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-12-02 13:08:32,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-12-02 13:08:32,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 13:08:32,589 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2023-12-02 13:08:32,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2023-12-02 13:08:32,589 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2023-12-02 13:08:32,589 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2023-12-02 13:08:32,590 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-12-02 13:08:32,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-12-02 13:08:32,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 13:08:32,590 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at [2023-12-02 13:08:32,590 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at [2023-12-02 13:08:32,900 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:08:32,903 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:08:35,302 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:08:35,641 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:08:35,642 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-12-02 13:08:35,644 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:08:35 BoogieIcfgContainer [2023-12-02 13:08:35,644 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:08:35,647 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:08:35,647 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:08:35,649 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:08:35,649 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:08:29" (1/3) ... [2023-12-02 13:08:35,650 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54d998df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:08:35, skipping insertion in model container [2023-12-02 13:08:35,650 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:08:32" (2/3) ... [2023-12-02 13:08:35,650 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54d998df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:08:35, skipping insertion in model container [2023-12-02 13:08:35,651 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:08:35" (3/3) ... [2023-12-02 13:08:35,652 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_pop_harness_negated.i [2023-12-02 13:08:35,666 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:08:35,666 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-02 13:08:35,720 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:08:35,726 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;@60c4d417, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:08:35,726 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-02 13:08:35,731 INFO L276 IsEmpty]: Start isEmpty. Operand has 392 states, 200 states have (on average 1.2) internal successors, (240), 203 states have internal predecessors, (240), 162 states have call successors, (162), 28 states have call predecessors, (162), 28 states have return successors, (162), 162 states have call predecessors, (162), 162 states have call successors, (162) [2023-12-02 13:08:35,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-02 13:08:35,747 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:08:35,748 INFO L195 NwaCegarLoop]: trace histogram [9, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:08:35,748 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:08:35,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:08:35,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1751445662, now seen corresponding path program 1 times [2023-12-02 13:08:35,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:08:35,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699960755] [2023-12-02 13:08:35,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:08:35,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:08:36,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:08:36,786 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2023-12-02 13:08:36,786 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:08:36,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699960755] [2023-12-02 13:08:36,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699960755] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:08:36,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1436788791] [2023-12-02 13:08:36,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:08:36,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:08:36,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:08:36,792 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:08:36,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 13:08:37,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:08:37,520 INFO L262 TraceCheckSpWp]: Trace formula consists of 2460 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 13:08:37,533 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:08:37,645 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-12-02 13:08:37,646 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:08:37,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1436788791] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:08:37,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 13:08:37,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2023-12-02 13:08:37,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737947441] [2023-12-02 13:08:37,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:08:37,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 13:08:37,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:08:37,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 13:08:37,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-02 13:08:37,679 INFO L87 Difference]: Start difference. First operand has 392 states, 200 states have (on average 1.2) internal successors, (240), 203 states have internal predecessors, (240), 162 states have call successors, (162), 28 states have call predecessors, (162), 28 states have return successors, (162), 162 states have call predecessors, (162), 162 states have call successors, (162) Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2023-12-02 13:08:40,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:08:40,155 INFO L93 Difference]: Finished difference Result 741 states and 1136 transitions. [2023-12-02 13:08:40,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 13:08:40,157 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 125 [2023-12-02 13:08:40,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:08:40,173 INFO L225 Difference]: With dead ends: 741 [2023-12-02 13:08:40,173 INFO L226 Difference]: Without dead ends: 391 [2023-12-02 13:08:40,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-02 13:08:40,186 INFO L413 NwaCegarLoop]: 481 mSDtfsCounter, 41 mSDsluCounter, 1354 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 1835 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-02 13:08:40,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 1835 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-02 13:08:40,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2023-12-02 13:08:40,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 391. [2023-12-02 13:08:40,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 199 states have (on average 1.185929648241206) internal successors, (236), 203 states have internal predecessors, (236), 162 states have call successors, (162), 28 states have call predecessors, (162), 28 states have return successors, (173), 160 states have call predecessors, (173), 160 states have call successors, (173) [2023-12-02 13:08:40,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 571 transitions. [2023-12-02 13:08:40,277 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 571 transitions. Word has length 125 [2023-12-02 13:08:40,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:08:40,277 INFO L495 AbstractCegarLoop]: Abstraction has 391 states and 571 transitions. [2023-12-02 13:08:40,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2023-12-02 13:08:40,278 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 571 transitions. [2023-12-02 13:08:40,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-02 13:08:40,282 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:08:40,282 INFO L195 NwaCegarLoop]: trace histogram [9, 6, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:08:40,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 13:08:40,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-02 13:08:40,485 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:08:40,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:08:40,485 INFO L85 PathProgramCache]: Analyzing trace with hash 927818192, now seen corresponding path program 1 times [2023-12-02 13:08:40,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:08:40,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550263718] [2023-12-02 13:08:40,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:08:40,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:08:40,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:08:41,254 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2023-12-02 13:08:41,255 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:08:41,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550263718] [2023-12-02 13:08:41,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550263718] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:08:41,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1744053577] [2023-12-02 13:08:41,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:08:41,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:08:41,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:08:41,259 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:08:41,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 13:08:41,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:08:41,925 INFO L262 TraceCheckSpWp]: Trace formula consists of 2510 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 13:08:41,936 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:08:42,055 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-12-02 13:08:42,056 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:08:42,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1744053577] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:08:42,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 13:08:42,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2023-12-02 13:08:42,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232279534] [2023-12-02 13:08:42,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:08:42,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 13:08:42,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:08:42,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 13:08:42,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-12-02 13:08:42,060 INFO L87 Difference]: Start difference. First operand 391 states and 571 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-12-02 13:08:45,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:08:45,273 INFO L93 Difference]: Finished difference Result 751 states and 1130 transitions. [2023-12-02 13:08:45,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 13:08:45,273 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 133 [2023-12-02 13:08:45,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:08:45,279 INFO L225 Difference]: With dead ends: 751 [2023-12-02 13:08:45,280 INFO L226 Difference]: Without dead ends: 404 [2023-12-02 13:08:45,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-12-02 13:08:45,285 INFO L413 NwaCegarLoop]: 464 mSDtfsCounter, 59 mSDsluCounter, 2195 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 2659 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:08:45,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 2659 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-02 13:08:45,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2023-12-02 13:08:45,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 402. [2023-12-02 13:08:45,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 207 states have (on average 1.1884057971014492) internal successors, (246), 211 states have internal predecessors, (246), 164 states have call successors, (164), 28 states have call predecessors, (164), 29 states have return successors, (192), 163 states have call predecessors, (192), 162 states have call successors, (192) [2023-12-02 13:08:45,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 602 transitions. [2023-12-02 13:08:45,348 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 602 transitions. Word has length 133 [2023-12-02 13:08:45,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:08:45,349 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 602 transitions. [2023-12-02 13:08:45,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-12-02 13:08:45,350 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 602 transitions. [2023-12-02 13:08:45,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-02 13:08:45,353 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:08:45,353 INFO L195 NwaCegarLoop]: trace histogram [9, 6, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:08:45,363 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 13:08:45,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:08:45,563 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:08:45,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:08:45,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1409371616, now seen corresponding path program 1 times [2023-12-02 13:08:45,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:08:45,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985238944] [2023-12-02 13:08:45,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:08:45,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:08:45,692 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 13:08:45,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [544491786] [2023-12-02 13:08:45,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:08:45,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:08:45,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:08:45,696 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:08:45,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 13:08:46,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:08:46,390 INFO L262 TraceCheckSpWp]: Trace formula consists of 2642 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 13:08:46,398 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:08:46,465 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-12-02 13:08:46,465 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:08:46,466 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:08:46,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985238944] [2023-12-02 13:08:46,466 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 13:08:46,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [544491786] [2023-12-02 13:08:46,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [544491786] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:08:46,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:08:46,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 13:08:46,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655921635] [2023-12-02 13:08:46,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:08:46,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 13:08:46,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:08:46,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 13:08:46,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 13:08:46,469 INFO L87 Difference]: Start difference. First operand 402 states and 602 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2023-12-02 13:08:49,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:08:49,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:08:49,472 INFO L93 Difference]: Finished difference Result 766 states and 1177 transitions. [2023-12-02 13:08:49,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 13:08:49,473 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 142 [2023-12-02 13:08:49,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:08:49,478 INFO L225 Difference]: With dead ends: 766 [2023-12-02 13:08:49,478 INFO L226 Difference]: Without dead ends: 408 [2023-12-02 13:08:49,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-12-02 13:08:49,482 INFO L413 NwaCegarLoop]: 478 mSDtfsCounter, 48 mSDsluCounter, 1802 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 2280 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-02 13:08:49,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 2280 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-02 13:08:49,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2023-12-02 13:08:49,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 402. [2023-12-02 13:08:49,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 207 states have (on average 1.1884057971014492) internal successors, (246), 211 states have internal predecessors, (246), 164 states have call successors, (164), 28 states have call predecessors, (164), 29 states have return successors, (192), 163 states have call predecessors, (192), 162 states have call successors, (192) [2023-12-02 13:08:49,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 602 transitions. [2023-12-02 13:08:49,511 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 602 transitions. Word has length 142 [2023-12-02 13:08:49,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:08:49,512 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 602 transitions. [2023-12-02 13:08:49,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2023-12-02 13:08:49,512 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 602 transitions. [2023-12-02 13:08:49,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-02 13:08:49,515 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:08:49,515 INFO L195 NwaCegarLoop]: trace histogram [9, 6, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:08:49,524 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 13:08:49,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:08:49,716 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:08:49,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:08:49,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1537642793, now seen corresponding path program 1 times [2023-12-02 13:08:49,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:08:49,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420038912] [2023-12-02 13:08:49,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:08:49,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:08:49,847 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 13:08:49,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [420166916] [2023-12-02 13:08:49,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:08:49,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:08:49,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:08:49,850 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:08:49,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 13:08:50,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:08:50,568 INFO L262 TraceCheckSpWp]: Trace formula consists of 2696 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 13:08:50,573 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:08:50,669 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2023-12-02 13:08:50,669 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:08:50,670 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:08:50,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420038912] [2023-12-02 13:08:50,670 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 13:08:50,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [420166916] [2023-12-02 13:08:50,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [420166916] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:08:50,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:08:50,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-02 13:08:50,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427443978] [2023-12-02 13:08:50,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:08:50,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 13:08:50,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:08:50,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 13:08:50,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-02 13:08:50,673 INFO L87 Difference]: Start difference. First operand 402 states and 602 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) [2023-12-02 13:08:52,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:08:55,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:08:56,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:08:56,363 INFO L93 Difference]: Finished difference Result 768 states and 1169 transitions. [2023-12-02 13:08:56,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 13:08:56,364 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) Word has length 150 [2023-12-02 13:08:56,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:08:56,368 INFO L225 Difference]: With dead ends: 768 [2023-12-02 13:08:56,368 INFO L226 Difference]: Without dead ends: 410 [2023-12-02 13:08:56,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-12-02 13:08:56,371 INFO L413 NwaCegarLoop]: 460 mSDtfsCounter, 71 mSDsluCounter, 2619 mSDsCounter, 0 mSdLazyCounter, 722 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 3079 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-12-02 13:08:56,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 3079 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 722 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-12-02 13:08:56,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2023-12-02 13:08:56,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 402. [2023-12-02 13:08:56,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 207 states have (on average 1.1884057971014492) internal successors, (246), 211 states have internal predecessors, (246), 164 states have call successors, (164), 28 states have call predecessors, (164), 29 states have return successors, (192), 163 states have call predecessors, (192), 162 states have call successors, (192) [2023-12-02 13:08:56,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 602 transitions. [2023-12-02 13:08:56,396 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 602 transitions. Word has length 150 [2023-12-02 13:08:56,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:08:56,396 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 602 transitions. [2023-12-02 13:08:56,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) [2023-12-02 13:08:56,396 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 602 transitions. [2023-12-02 13:08:56,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-02 13:08:56,399 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:08:56,399 INFO L195 NwaCegarLoop]: trace histogram [9, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:08:56,407 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 13:08:56,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:08:56,600 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:08:56,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:08:56,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1477983703, now seen corresponding path program 2 times [2023-12-02 13:08:56,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:08:56,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63469205] [2023-12-02 13:08:56,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:08:56,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:08:56,743 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 13:08:56,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1784504409] [2023-12-02 13:08:56,744 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 13:08:56,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:08:56,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:08:56,745 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:08:56,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 13:08:57,325 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-12-02 13:08:57,325 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 13:08:57,331 INFO L262 TraceCheckSpWp]: Trace formula consists of 1825 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 13:08:57,338 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:08:57,378 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-12-02 13:08:57,379 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:08:57,379 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:08:57,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63469205] [2023-12-02 13:08:57,379 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 13:08:57,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1784504409] [2023-12-02 13:08:57,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1784504409] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:08:57,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:08:57,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 13:08:57,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148468084] [2023-12-02 13:08:57,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:08:57,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 13:08:57,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:08:57,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 13:08:57,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 13:08:57,382 INFO L87 Difference]: Start difference. First operand 402 states and 602 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2023-12-02 13:09:00,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:09:00,171 INFO L93 Difference]: Finished difference Result 410 states and 610 transitions. [2023-12-02 13:09:00,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 13:09:00,171 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) Word has length 159 [2023-12-02 13:09:00,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:09:00,176 INFO L225 Difference]: With dead ends: 410 [2023-12-02 13:09:00,176 INFO L226 Difference]: Without dead ends: 408 [2023-12-02 13:09:00,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-02 13:09:00,177 INFO L413 NwaCegarLoop]: 511 mSDtfsCounter, 5 mSDsluCounter, 2019 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2530 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-02 13:09:00,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2530 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-02 13:09:00,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2023-12-02 13:09:00,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 407. [2023-12-02 13:09:00,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 210 states have (on average 1.1857142857142857) internal successors, (249), 214 states have internal predecessors, (249), 165 states have call successors, (165), 29 states have call predecessors, (165), 30 states have return successors, (193), 164 states have call predecessors, (193), 163 states have call successors, (193) [2023-12-02 13:09:00,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 607 transitions. [2023-12-02 13:09:00,206 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 607 transitions. Word has length 159 [2023-12-02 13:09:00,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:09:00,207 INFO L495 AbstractCegarLoop]: Abstraction has 407 states and 607 transitions. [2023-12-02 13:09:00,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2023-12-02 13:09:00,208 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 607 transitions. [2023-12-02 13:09:00,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-02 13:09:00,210 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:09:00,210 INFO L195 NwaCegarLoop]: trace histogram [9, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:09:00,219 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-02 13:09:00,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:09:00,411 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:09:00,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:09:00,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1813022847, now seen corresponding path program 3 times [2023-12-02 13:09:00,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:09:00,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854612353] [2023-12-02 13:09:00,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:09:00,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:09:00,519 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 13:09:00,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1662542641] [2023-12-02 13:09:00,519 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-02 13:09:00,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:09:00,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:09:00,520 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:09:00,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb31a2a4-3f99-4394-b2a6-1dd8e970501d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-02 13:09:00,990 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-02 13:09:00,990 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 13:09:00,993 INFO L262 TraceCheckSpWp]: Trace formula consists of 665 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-02 13:09:00,998 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:09:01,146 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 74 proven. 2 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2023-12-02 13:09:01,147 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:09:01,461 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2023-12-02 13:09:01,461 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:09:01,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854612353] [2023-12-02 13:09:01,461 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 13:09:01,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662542641] [2023-12-02 13:09:01,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1662542641] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:09:01,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1809858866] [2023-12-02 13:09:01,487 INFO L159 IcfgInterpreter]: Started Sifa with 97 locations of interest [2023-12-02 13:09:01,487 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:09:01,491 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:09:01,495 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:09:01,495 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:17:43,050 WARN L293 SmtUtils]: Spent 6.03s on a formula simplification that was a NOOP. DAG size: 2303 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-12-02 13:17:49,898 WARN L293 SmtUtils]: Spent 6.80s on a formula simplification that was a NOOP. DAG size: 2303 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-12-02 13:17:52,018 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2023-12-02 13:17:52,041 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2023-12-02 13:18:56,913 WARN L293 SmtUtils]: Spent 5.10s on a formula simplification that was a NOOP. DAG size: 2273 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-12-02 13:20:21,082 INFO L197 IcfgInterpreter]: Interpreting procedure nondet_size_t with input of size 38 for LOIs [2023-12-02 13:20:21,087 INFO L197 IcfgInterpreter]: Interpreting procedure aws_array_list_is_bounded with input of size 2277 for LOIs [2023-12-02 13:21:20,971 INFO L197 IcfgInterpreter]: Interpreting procedure aws_priority_queue_is_valid with input of size 92 for LOIs [2023-12-02 13:21:24,370 INFO L197 IcfgInterpreter]: Interpreting procedure aws_array_list_is_valid with input of size 117 for LOIs [2023-12-02 13:21:25,297 INFO L197 IcfgInterpreter]: Interpreting procedure aws_mul_size_checked with input of size 167 for LOIs [2023-12-02 13:21:26,512 INFO L197 IcfgInterpreter]: Interpreting procedure __CPROVER_overflow_mult with input of size 155 for LOIs [2023-12-02 13:21:26,604 INFO L197 IcfgInterpreter]: Interpreting procedure ensure_array_list_has_allocated_data_member with input of size 217 for LOIs [2023-12-02 13:21:29,045 INFO L197 IcfgInterpreter]: Interpreting procedure can_fail_allocator with input of size 38 for LOIs [2023-12-02 13:21:29,050 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 248 for LOIs [2023-12-02 13:21:29,433 INFO L197 IcfgInterpreter]: Interpreting procedure can_fail_malloc with input of size 98 for LOIs [2023-12-02 13:21:29,571 INFO L197 IcfgInterpreter]: Interpreting procedure nondet_bool with input of size 82 for LOIs [2023-12-02 13:21:29,585 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:23:04,413 WARN L293 SmtUtils]: Spent 1.57m on a formula simplification. DAG size of input: 2147 DAG size of output: 2145 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)