./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13286edb-4c02-4f2c-a968-8f039099cf34/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13286edb-4c02-4f2c-a968-8f039099cf34/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13286edb-4c02-4f2c-a968-8f039099cf34/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13286edb-4c02-4f2c-a968-8f039099cf34/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13286edb-4c02-4f2c-a968-8f039099cf34/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13286edb-4c02-4f2c-a968-8f039099cf34/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d8b9169d0d63d8238da177db4999afabb0efa6e97e1e7cd257e8474f76788f17 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:08:22,643 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:08:22,760 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13286edb-4c02-4f2c-a968-8f039099cf34/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:08:22,768 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:08:22,769 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:08:22,828 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:08:22,829 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:08:22,829 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:08:22,830 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:08:22,835 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:08:22,836 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:08:22,836 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:08:22,837 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:08:22,838 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:08:22,839 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:08:22,839 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:08:22,840 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:08:22,840 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:08:22,841 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:08:22,842 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:08:22,843 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:08:22,843 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:08:22,844 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:08:22,845 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:08:22,845 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:08:22,846 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:08:22,846 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:08:22,846 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:08:22,847 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:08:22,847 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:08:22,848 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:08:22,848 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:08:22,859 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:08:22,859 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:08:22,860 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:08:22,860 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:08:22,860 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:08:22,861 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:08:22,861 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:08:22,861 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:08:22,861 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:08:22,862 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:08:22,862 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_13286edb-4c02-4f2c-a968-8f039099cf34/bin/utaipan-verify-NcY6lQBIFX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13286edb-4c02-4f2c-a968-8f039099cf34/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8b9169d0d63d8238da177db4999afabb0efa6e97e1e7cd257e8474f76788f17 [2023-11-12 00:08:23,217 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:08:23,278 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:08:23,282 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:08:23,284 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:08:23,285 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:08:23,286 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13286edb-4c02-4f2c-a968-8f039099cf34/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i [2023-11-12 00:08:26,412 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:08:27,082 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:08:27,083 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13286edb-4c02-4f2c-a968-8f039099cf34/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i [2023-11-12 00:08:27,125 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13286edb-4c02-4f2c-a968-8f039099cf34/bin/utaipan-verify-NcY6lQBIFX/data/cb758cb01/b79d8f509e0a40aca3e9a023a83cdfd0/FLAGa07821e10 [2023-11-12 00:08:27,142 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13286edb-4c02-4f2c-a968-8f039099cf34/bin/utaipan-verify-NcY6lQBIFX/data/cb758cb01/b79d8f509e0a40aca3e9a023a83cdfd0 [2023-11-12 00:08:27,148 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:08:27,151 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:08:27,156 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:08:27,156 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:08:27,162 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:08:27,162 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:08:27" (1/1) ... [2023-11-12 00:08:27,164 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d8d04c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:27, skipping insertion in model container [2023-11-12 00:08:27,164 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:08:27" (1/1) ... [2023-11-12 00:08:27,343 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:08:27,663 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_13286edb-4c02-4f2c-a968-8f039099cf34/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4497,4510] [2023-11-12 00:08:27,674 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_13286edb-4c02-4f2c-a968-8f039099cf34/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4557,4570] [2023-11-12 00:08:28,991 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:28,992 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:28,993 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:28,994 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:28,996 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:29,012 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:29,014 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:29,020 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:29,020 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:29,023 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:29,032 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:29,034 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:29,034 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:29,577 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 00:08:29,579 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 00:08:29,581 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 00:08:29,582 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 00:08:29,584 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 00:08:29,585 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 00:08:29,586 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 00:08:29,587 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 00:08:29,588 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 00:08:29,589 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 00:08:29,868 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:29,879 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,011 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,013 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,013 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,014 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,015 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,017 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,018 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,019 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,020 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,020 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,021 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,021 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,022 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,026 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,027 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,027 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,027 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,039 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,041 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,055 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,056 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,057 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,088 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:08:30,144 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:08:30,169 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_13286edb-4c02-4f2c-a968-8f039099cf34/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4497,4510] [2023-11-12 00:08:30,170 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_13286edb-4c02-4f2c-a968-8f039099cf34/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4557,4570] [2023-11-12 00:08:30,228 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,236 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,237 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,237 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,239 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,247 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,248 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,250 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,251 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,253 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,254 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,255 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,255 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,325 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 00:08:30,326 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 00:08:30,327 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 00:08:30,329 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 00:08:30,330 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 00:08:30,330 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 00:08:30,331 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 00:08:30,332 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 00:08:30,332 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 00:08:30,333 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 00:08:30,374 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,379 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,387 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7771-7782] [2023-11-12 00:08:30,416 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,418 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,419 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,419 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,419 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,420 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,420 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,421 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,421 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,422 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,422 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,423 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,423 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,424 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,424 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,424 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,425 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,427 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,428 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,442 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,443 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,444 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:08:30,459 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:08:30,815 WARN L672 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:30,816 WARN L672 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:30,816 WARN L672 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:30,816 WARN L672 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:30,816 WARN L672 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:30,816 WARN L672 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:30,817 WARN L672 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:30,817 WARN L672 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:30,817 WARN L672 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:30,817 WARN L672 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:30,817 WARN L672 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:30,818 WARN L672 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:30,818 WARN L672 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:30,818 WARN L672 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:30,818 WARN L672 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:30,826 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:08:30,827 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:30 WrapperNode [2023-11-12 00:08:30,827 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:08:30,828 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:08:30,828 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:08:30,829 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:08:30,837 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:30" (1/1) ... [2023-11-12 00:08:30,977 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:30" (1/1) ... [2023-11-12 00:08:31,063 INFO L138 Inliner]: procedures = 696, calls = 1880, calls flagged for inlining = 60, calls inlined = 19, statements flattened = 1165 [2023-11-12 00:08:31,063 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:08:31,065 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:08:31,065 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:08:31,065 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:08:31,075 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:30" (1/1) ... [2023-11-12 00:08:31,076 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:30" (1/1) ... [2023-11-12 00:08:31,090 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:30" (1/1) ... [2023-11-12 00:08:31,090 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:30" (1/1) ... [2023-11-12 00:08:31,157 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:30" (1/1) ... [2023-11-12 00:08:31,164 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:30" (1/1) ... [2023-11-12 00:08:31,190 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:30" (1/1) ... [2023-11-12 00:08:31,206 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:30" (1/1) ... [2023-11-12 00:08:31,231 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:08:31,232 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:08:31,232 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:08:31,232 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:08:31,233 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:30" (1/1) ... [2023-11-12 00:08:31,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:08:31,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13286edb-4c02-4f2c-a968-8f039099cf34/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:08:31,273 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13286edb-4c02-4f2c-a968-8f039099cf34/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:08:31,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13286edb-4c02-4f2c-a968-8f039099cf34/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:08:31,315 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2023-11-12 00:08:31,315 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2023-11-12 00:08:31,316 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_init_dynamic [2023-11-12 00:08:31,316 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_init_dynamic [2023-11-12 00:08:31,316 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2023-11-12 00:08:31,316 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2023-11-12 00:08:31,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:08:31,316 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2023-11-12 00:08:31,316 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2023-11-12 00:08:31,317 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2023-11-12 00:08:31,317 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2023-11-12 00:08:31,317 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-12 00:08:31,317 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-12 00:08:31,317 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2023-11-12 00:08:31,317 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2023-11-12 00:08:31,318 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2023-11-12 00:08:31,318 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2023-11-12 00:08:31,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:08:31,318 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-12 00:08:31,318 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-12 00:08:31,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 00:08:31,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 00:08:31,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:08:31,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:08:31,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:08:31,319 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2023-11-12 00:08:31,319 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2023-11-12 00:08:31,320 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2023-11-12 00:08:31,320 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2023-11-12 00:08:31,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:08:31,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:08:31,320 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-12 00:08:31,321 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-12 00:08:31,321 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-12 00:08:31,321 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-12 00:08:31,321 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2023-11-12 00:08:31,321 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2023-11-12 00:08:31,321 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2023-11-12 00:08:31,322 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2023-11-12 00:08:31,322 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2023-11-12 00:08:31,322 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2023-11-12 00:08:31,322 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2023-11-12 00:08:31,322 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2023-11-12 00:08:31,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-12 00:08:31,323 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-12 00:08:31,323 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:08:31,323 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:08:31,323 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2023-11-12 00:08:31,323 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2023-11-12 00:08:31,323 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2023-11-12 00:08:31,324 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2023-11-12 00:08:31,324 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2023-11-12 00:08:31,324 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2023-11-12 00:08:31,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:08:31,324 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2023-11-12 00:08:31,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2023-11-12 00:08:31,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:08:31,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:08:31,325 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2023-11-12 00:08:31,325 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2023-11-12 00:08:31,325 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-12 00:08:31,325 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-12 00:08:31,326 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-12 00:08:31,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-12 00:08:31,326 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2023-11-12 00:08:31,326 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2023-11-12 00:08:31,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:08:31,326 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2023-11-12 00:08:31,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2023-11-12 00:08:31,327 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_set_at [2023-11-12 00:08:31,327 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_set_at [2023-11-12 00:08:31,327 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2023-11-12 00:08:31,327 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2023-11-12 00:08:31,327 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-12 00:08:31,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-12 00:08:31,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:08:31,739 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:08:31,743 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:08:33,514 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:08:33,974 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:08:33,975 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-12 00:08:33,981 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:08:33 BoogieIcfgContainer [2023-11-12 00:08:33,981 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:08:33,985 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:08:33,985 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:08:33,989 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:08:33,990 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:08:27" (1/3) ... [2023-11-12 00:08:33,992 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29a47f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:08:33, skipping insertion in model container [2023-11-12 00:08:33,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:30" (2/3) ... [2023-11-12 00:08:33,993 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29a47f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:08:33, skipping insertion in model container [2023-11-12 00:08:33,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:08:33" (3/3) ... [2023-11-12 00:08:33,995 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_push_harness.i [2023-11-12 00:08:34,020 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:08:34,021 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-12 00:08:34,124 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:08:34,137 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;@6ffbcd9b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:08:34,137 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-12 00:08:34,144 INFO L276 IsEmpty]: Start isEmpty. Operand has 463 states, 233 states have (on average 1.201716738197425) internal successors, (280), 236 states have internal predecessors, (280), 196 states have call successors, (196), 32 states have call predecessors, (196), 32 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) [2023-11-12 00:08:34,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-12 00:08:34,162 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:08:34,163 INFO L195 NwaCegarLoop]: trace histogram [13, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:08:34,164 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:08:34,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:08:34,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1913181749, now seen corresponding path program 1 times [2023-11-12 00:08:34,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:08:34,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985614826] [2023-11-12 00:08:34,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:08:34,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:08:34,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:08:35,604 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2023-11-12 00:08:35,605 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:08:35,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985614826] [2023-11-12 00:08:35,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985614826] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:08:35,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1699080178] [2023-11-12 00:08:35,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:08:35,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:08:35,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13286edb-4c02-4f2c-a968-8f039099cf34/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:08:35,616 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13286edb-4c02-4f2c-a968-8f039099cf34/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:08:35,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13286edb-4c02-4f2c-a968-8f039099cf34/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:08:36,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:08:36,473 INFO L262 TraceCheckSpWp]: Trace formula consists of 2387 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 00:08:36,488 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:08:36,621 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2023-11-12 00:08:36,628 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:08:36,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1699080178] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:08:36,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 00:08:36,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2023-11-12 00:08:36,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477124775] [2023-11-12 00:08:36,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:08:36,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:08:36,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:08:36,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:08:36,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-12 00:08:36,685 INFO L87 Difference]: Start difference. First operand has 463 states, 233 states have (on average 1.201716738197425) internal successors, (280), 236 states have internal predecessors, (280), 196 states have call successors, (196), 32 states have call predecessors, (196), 32 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (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) [2023-11-12 00:08:37,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:08:37,715 INFO L93 Difference]: Finished difference Result 899 states and 1372 transitions. [2023-11-12 00:08:37,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 00:08:37,718 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (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 [2023-11-12 00:08:37,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:08:37,743 INFO L225 Difference]: With dead ends: 899 [2023-11-12 00:08:37,743 INFO L226 Difference]: Without dead ends: 462 [2023-11-12 00:08:37,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-12 00:08:37,760 INFO L413 NwaCegarLoop]: 601 mSDtfsCounter, 54 mSDsluCounter, 1695 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 2296 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-12 00:08:37,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 2296 Invalid, 266 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-12 00:08:37,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2023-11-12 00:08:37,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 462. [2023-11-12 00:08:37,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 232 states have (on average 1.1896551724137931) internal successors, (276), 235 states have internal predecessors, (276), 196 states have call successors, (196), 32 states have call predecessors, (196), 32 states have return successors, (204), 194 states have call predecessors, (204), 194 states have call successors, (204) [2023-11-12 00:08:37,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 676 transitions. [2023-11-12 00:08:37,923 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 676 transitions. Word has length 125 [2023-11-12 00:08:37,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:08:37,924 INFO L495 AbstractCegarLoop]: Abstraction has 462 states and 676 transitions. [2023-11-12 00:08:37,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (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) [2023-11-12 00:08:37,925 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 676 transitions. [2023-11-12 00:08:37,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-12 00:08:37,940 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:08:37,940 INFO L195 NwaCegarLoop]: trace histogram [13, 4, 4, 4, 3, 3, 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] [2023-11-12 00:08:37,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13286edb-4c02-4f2c-a968-8f039099cf34/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-12 00:08:38,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13286edb-4c02-4f2c-a968-8f039099cf34/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-12 00:08:38,151 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:08:38,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:08:38,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1812360824, now seen corresponding path program 1 times [2023-11-12 00:08:38,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:08:38,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204584498] [2023-11-12 00:08:38,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:08:38,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:08:38,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:08:39,260 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-11-12 00:08:39,261 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:08:39,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204584498] [2023-11-12 00:08:39,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204584498] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:08:39,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1043012642] [2023-11-12 00:08:39,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:08:39,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:08:39,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13286edb-4c02-4f2c-a968-8f039099cf34/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:08:39,263 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13286edb-4c02-4f2c-a968-8f039099cf34/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:08:39,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13286edb-4c02-4f2c-a968-8f039099cf34/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 00:08:39,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:08:39,961 INFO L262 TraceCheckSpWp]: Trace formula consists of 2437 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-12 00:08:39,979 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:08:40,116 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2023-11-12 00:08:40,117 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:08:40,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1043012642] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:08:40,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 00:08:40,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2023-11-12 00:08:40,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889585529] [2023-11-12 00:08:40,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:08:40,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 00:08:40,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:08:40,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 00:08:40,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-11-12 00:08:40,122 INFO L87 Difference]: Start difference. First operand 462 states and 676 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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) [2023-11-12 00:08:41,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:08:41,406 INFO L93 Difference]: Finished difference Result 909 states and 1372 transitions. [2023-11-12 00:08:41,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 00:08:41,407 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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 [2023-11-12 00:08:41,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:08:41,414 INFO L225 Difference]: With dead ends: 909 [2023-11-12 00:08:41,414 INFO L226 Difference]: Without dead ends: 475 [2023-11-12 00:08:41,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2023-11-12 00:08:41,419 INFO L413 NwaCegarLoop]: 573 mSDtfsCounter, 68 mSDsluCounter, 2688 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 3261 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:08:41,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 3261 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-12 00:08:41,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2023-11-12 00:08:41,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 473. [2023-11-12 00:08:41,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 240 states have (on average 1.1916666666666667) internal successors, (286), 243 states have internal predecessors, (286), 198 states have call successors, (198), 32 states have call predecessors, (198), 33 states have return successors, (238), 197 states have call predecessors, (238), 196 states have call successors, (238) [2023-11-12 00:08:41,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 722 transitions. [2023-11-12 00:08:41,480 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 722 transitions. Word has length 133 [2023-11-12 00:08:41,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:08:41,481 INFO L495 AbstractCegarLoop]: Abstraction has 473 states and 722 transitions. [2023-11-12 00:08:41,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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) [2023-11-12 00:08:41,481 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 722 transitions. [2023-11-12 00:08:41,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-11-12 00:08:41,484 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:08:41,485 INFO L195 NwaCegarLoop]: trace histogram [13, 4, 4, 3, 3, 3, 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] [2023-11-12 00:08:41,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13286edb-4c02-4f2c-a968-8f039099cf34/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 00:08:41,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13286edb-4c02-4f2c-a968-8f039099cf34/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-12 00:08:41,701 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:08:41,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:08:41,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1101520511, now seen corresponding path program 1 times [2023-11-12 00:08:41,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:08:41,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293300552] [2023-11-12 00:08:41,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:08:41,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:08:41,841 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 00:08:41,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1992956659] [2023-11-12 00:08:41,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:08:41,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:08:41,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13286edb-4c02-4f2c-a968-8f039099cf34/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:08:41,846 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13286edb-4c02-4f2c-a968-8f039099cf34/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:08:41,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13286edb-4c02-4f2c-a968-8f039099cf34/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 00:08:42,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:08:42,543 INFO L262 TraceCheckSpWp]: Trace formula consists of 2569 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-12 00:08:42,549 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:08:42,641 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2023-11-12 00:08:42,641 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:08:42,641 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:08:42,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293300552] [2023-11-12 00:08:42,642 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 00:08:42,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992956659] [2023-11-12 00:08:42,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992956659] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:08:42,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:08:42,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 00:08:42,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520775222] [2023-11-12 00:08:42,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:08:42,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 00:08:42,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:08:42,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 00:08:42,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 00:08:42,646 INFO L87 Difference]: Start difference. First operand 473 states and 722 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) [2023-11-12 00:08:43,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:08:43,689 INFO L93 Difference]: Finished difference Result 924 states and 1431 transitions. [2023-11-12 00:08:43,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 00:08:43,690 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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 [2023-11-12 00:08:43,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:08:43,695 INFO L225 Difference]: With dead ends: 924 [2023-11-12 00:08:43,696 INFO L226 Difference]: Without dead ends: 479 [2023-11-12 00:08:43,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-12 00:08:43,700 INFO L413 NwaCegarLoop]: 598 mSDtfsCounter, 61 mSDsluCounter, 2266 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 2864 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-12 00:08:43,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 2864 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-12 00:08:43,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2023-11-12 00:08:43,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 473. [2023-11-12 00:08:43,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 240 states have (on average 1.1916666666666667) internal successors, (286), 243 states have internal predecessors, (286), 198 states have call successors, (198), 32 states have call predecessors, (198), 33 states have return successors, (238), 197 states have call predecessors, (238), 196 states have call successors, (238) [2023-11-12 00:08:43,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 722 transitions. [2023-11-12 00:08:43,751 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 722 transitions. Word has length 142 [2023-11-12 00:08:43,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:08:43,752 INFO L495 AbstractCegarLoop]: Abstraction has 473 states and 722 transitions. [2023-11-12 00:08:43,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) [2023-11-12 00:08:43,752 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 722 transitions. [2023-11-12 00:08:43,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-12 00:08:43,757 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:08:43,757 INFO L195 NwaCegarLoop]: trace histogram [13, 5, 5, 4, 3, 3, 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] [2023-11-12 00:08:43,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13286edb-4c02-4f2c-a968-8f039099cf34/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 00:08:43,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13286edb-4c02-4f2c-a968-8f039099cf34/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-12 00:08:43,968 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:08:43,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:08:43,969 INFO L85 PathProgramCache]: Analyzing trace with hash -469441835, now seen corresponding path program 1 times [2023-11-12 00:08:43,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:08:43,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573398485] [2023-11-12 00:08:43,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:08:43,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:08:44,096 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 00:08:44,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1112496275] [2023-11-12 00:08:44,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:08:44,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:08:44,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13286edb-4c02-4f2c-a968-8f039099cf34/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:08:44,098 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13286edb-4c02-4f2c-a968-8f039099cf34/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:08:44,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13286edb-4c02-4f2c-a968-8f039099cf34/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 00:08:44,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:08:44,817 INFO L262 TraceCheckSpWp]: Trace formula consists of 2623 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-12 00:08:44,824 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:08:44,917 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2023-11-12 00:08:44,918 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:08:44,918 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:08:44,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573398485] [2023-11-12 00:08:44,918 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 00:08:44,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112496275] [2023-11-12 00:08:44,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112496275] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:08:44,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:08:44,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-12 00:08:44,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307201561] [2023-11-12 00:08:44,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:08:44,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 00:08:44,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:08:44,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 00:08:44,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-12 00:08:44,922 INFO L87 Difference]: Start difference. First operand 473 states and 722 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 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) [2023-11-12 00:08:46,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:08:46,123 INFO L93 Difference]: Finished difference Result 926 states and 1426 transitions. [2023-11-12 00:08:46,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 00:08:46,124 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 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 [2023-11-12 00:08:46,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:08:46,133 INFO L225 Difference]: With dead ends: 926 [2023-11-12 00:08:46,133 INFO L226 Difference]: Without dead ends: 481 [2023-11-12 00:08:46,137 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 [2023-11-12 00:08:46,138 INFO L413 NwaCegarLoop]: 565 mSDtfsCounter, 84 mSDsluCounter, 3206 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 3771 SdHoareTripleChecker+Invalid, 778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:08:46,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 3771 Invalid, 778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-12 00:08:46,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2023-11-12 00:08:46,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 473. [2023-11-12 00:08:46,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 240 states have (on average 1.1916666666666667) internal successors, (286), 243 states have internal predecessors, (286), 198 states have call successors, (198), 32 states have call predecessors, (198), 33 states have return successors, (238), 197 states have call predecessors, (238), 196 states have call successors, (238) [2023-11-12 00:08:46,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 722 transitions. [2023-11-12 00:08:46,185 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 722 transitions. Word has length 150 [2023-11-12 00:08:46,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:08:46,186 INFO L495 AbstractCegarLoop]: Abstraction has 473 states and 722 transitions. [2023-11-12 00:08:46,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 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) [2023-11-12 00:08:46,187 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 722 transitions. [2023-11-12 00:08:46,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-11-12 00:08:46,190 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:08:46,190 INFO L195 NwaCegarLoop]: trace histogram [13, 5, 5, 3, 3, 3, 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] [2023-11-12 00:08:46,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13286edb-4c02-4f2c-a968-8f039099cf34/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-12 00:08:46,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13286edb-4c02-4f2c-a968-8f039099cf34/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-11-12 00:08:46,402 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:08:46,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:08:46,402 INFO L85 PathProgramCache]: Analyzing trace with hash 23608066, now seen corresponding path program 2 times [2023-11-12 00:08:46,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:08:46,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841262021] [2023-11-12 00:08:46,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:08:46,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:08:46,523 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 00:08:46,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2139491889] [2023-11-12 00:08:46,524 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-12 00:08:46,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:08:46,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13286edb-4c02-4f2c-a968-8f039099cf34/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:08:46,525 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13286edb-4c02-4f2c-a968-8f039099cf34/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:08:46,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13286edb-4c02-4f2c-a968-8f039099cf34/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-12 00:08:47,204 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-12 00:08:47,204 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 00:08:47,214 INFO L262 TraceCheckSpWp]: Trace formula consists of 1875 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-12 00:08:47,221 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:08:47,264 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2023-11-12 00:08:47,265 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:08:47,265 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:08:47,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841262021] [2023-11-12 00:08:47,265 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 00:08:47,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139491889] [2023-11-12 00:08:47,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2139491889] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:08:47,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:08:47,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 00:08:47,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532477703] [2023-11-12 00:08:47,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:08:47,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:08:47,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:08:47,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:08:47,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:08:47,270 INFO L87 Difference]: Start difference. First operand 473 states and 722 transitions. Second operand has 5 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2023-11-12 00:08:48,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:08:48,180 INFO L93 Difference]: Finished difference Result 897 states and 1385 transitions. [2023-11-12 00:08:48,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 00:08:48,181 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 159 [2023-11-12 00:08:48,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:08:48,187 INFO L225 Difference]: With dead ends: 897 [2023-11-12 00:08:48,187 INFO L226 Difference]: Without dead ends: 473 [2023-11-12 00:08:48,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:08:48,192 INFO L413 NwaCegarLoop]: 574 mSDtfsCounter, 0 mSDsluCounter, 1676 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2250 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-12 00:08:48,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2250 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-12 00:08:48,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2023-11-12 00:08:48,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 473. [2023-11-12 00:08:48,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 240 states have (on average 1.1916666666666667) internal successors, (286), 243 states have internal predecessors, (286), 198 states have call successors, (198), 32 states have call predecessors, (198), 33 states have return successors, (237), 197 states have call predecessors, (237), 196 states have call successors, (237) [2023-11-12 00:08:48,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 721 transitions. [2023-11-12 00:08:48,236 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 721 transitions. Word has length 159 [2023-11-12 00:08:48,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:08:48,237 INFO L495 AbstractCegarLoop]: Abstraction has 473 states and 721 transitions. [2023-11-12 00:08:48,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2023-11-12 00:08:48,238 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 721 transitions. [2023-11-12 00:08:48,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-11-12 00:08:48,241 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:08:48,241 INFO L195 NwaCegarLoop]: trace histogram [13, 5, 5, 3, 3, 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] [2023-11-12 00:08:48,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13286edb-4c02-4f2c-a968-8f039099cf34/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-12 00:08:48,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13286edb-4c02-4f2c-a968-8f039099cf34/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:08:48,451 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:08:48,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:08:48,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1722563387, now seen corresponding path program 3 times [2023-11-12 00:08:48,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:08:48,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340119925] [2023-11-12 00:08:48,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:08:48,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:08:48,577 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 00:08:48,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [35558375] [2023-11-12 00:08:48,578 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-12 00:08:48,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:08:48,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13286edb-4c02-4f2c-a968-8f039099cf34/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:08:48,579 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13286edb-4c02-4f2c-a968-8f039099cf34/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:08:48,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13286edb-4c02-4f2c-a968-8f039099cf34/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-12 00:08:49,231 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-12 00:08:49,231 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 00:08:49,236 INFO L262 TraceCheckSpWp]: Trace formula consists of 779 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-12 00:08:49,243 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:08:49,354 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 123 proven. 3 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2023-11-12 00:08:49,354 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:08:49,712 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2023-11-12 00:08:49,713 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:08:49,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340119925] [2023-11-12 00:08:49,713 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 00:08:49,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [35558375] [2023-11-12 00:08:49,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [35558375] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:08:49,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1704097113] [2023-11-12 00:08:49,742 INFO L159 IcfgInterpreter]: Started Sifa with 91 locations of interest [2023-11-12 00:08:49,742 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:08:49,747 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:08:49,753 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:08:49,754 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs