./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64904343-876b-4590-97ee-a138969f2e7d/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64904343-876b-4590-97ee-a138969f2e7d/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_64904343-876b-4590-97ee-a138969f2e7d/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64904343-876b-4590-97ee-a138969f2e7d/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64904343-876b-4590-97ee-a138969f2e7d/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_64904343-876b-4590-97ee-a138969f2e7d/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 6f838ff631dd7d907eee223e4bc065b6ce71a3dd1969d0a88cef9ccdcf3b54d1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:46:28,760 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:46:28,898 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64904343-876b-4590-97ee-a138969f2e7d/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:46:28,909 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:46:28,910 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:46:28,958 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:46:28,959 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:46:28,960 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:46:28,961 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:46:28,967 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:46:28,967 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:46:28,969 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:46:28,969 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:46:28,971 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:46:28,972 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:46:28,972 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:46:28,973 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:46:28,973 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:46:28,974 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:46:28,974 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:46:28,975 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:46:28,975 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:46:28,977 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:46:28,977 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:46:28,978 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:46:28,978 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:46:28,978 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:46:28,979 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:46:28,979 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:46:28,980 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:46:28,981 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:46:28,981 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:46:28,982 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:46:28,982 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:46:28,982 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:46:28,982 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:46:28,983 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:46:28,983 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:46:28,983 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:46:28,983 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:46:28,984 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:46:28,984 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:46:28,984 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_64904343-876b-4590-97ee-a138969f2e7d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64904343-876b-4590-97ee-a138969f2e7d/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f838ff631dd7d907eee223e4bc065b6ce71a3dd1969d0a88cef9ccdcf3b54d1 [2023-11-12 00:46:29,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:46:29,373 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:46:29,376 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:46:29,377 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:46:29,378 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:46:29,380 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64904343-876b-4590-97ee-a138969f2e7d/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i [2023-11-12 00:46:32,653 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:46:33,323 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:46:33,325 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64904343-876b-4590-97ee-a138969f2e7d/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i [2023-11-12 00:46:33,374 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64904343-876b-4590-97ee-a138969f2e7d/bin/utaipan-verify-NcY6lQBIFX/data/67d609798/b041754cacf4408bb7a80e8fe4f9d49e/FLAG16108c750 [2023-11-12 00:46:33,393 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64904343-876b-4590-97ee-a138969f2e7d/bin/utaipan-verify-NcY6lQBIFX/data/67d609798/b041754cacf4408bb7a80e8fe4f9d49e [2023-11-12 00:46:33,401 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:46:33,403 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:46:33,409 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:46:33,410 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:46:33,416 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:46:33,417 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:46:33" (1/1) ... [2023-11-12 00:46:33,418 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e439f76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:33, skipping insertion in model container [2023-11-12 00:46:33,418 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:46:33" (1/1) ... [2023-11-12 00:46:33,549 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:46:33,848 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_64904343-876b-4590-97ee-a138969f2e7d/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4493,4506] [2023-11-12 00:46:33,857 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_64904343-876b-4590-97ee-a138969f2e7d/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4553,4566] [2023-11-12 00:46:35,002 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:35,003 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:35,003 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:35,004 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:35,006 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:35,021 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:35,021 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:35,023 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:35,024 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:35,027 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:35,028 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:35,029 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:35,029 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:35,647 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 00:46:35,652 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 00:46:35,659 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 00:46:35,660 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 00:46:35,662 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 00:46:35,676 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 00:46:35,677 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 00:46:35,678 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 00:46:35,679 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 00:46:35,680 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 00:46:36,008 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:36,019 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:36,024 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:36,032 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:36,157 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:46:36,194 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:46:36,212 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_64904343-876b-4590-97ee-a138969f2e7d/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4493,4506] [2023-11-12 00:46:36,212 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_64904343-876b-4590-97ee-a138969f2e7d/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4553,4566] [2023-11-12 00:46:36,290 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:36,290 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:36,290 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:36,291 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:36,296 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:36,307 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:36,308 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:36,311 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:36,312 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:36,313 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:36,314 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:36,315 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:36,316 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:36,372 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 00:46:36,375 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 00:46:36,376 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 00:46:36,377 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 00:46:36,379 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 00:46:36,383 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 00:46:36,386 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 00:46:36,387 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 00:46:36,387 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 00:46:36,388 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 00:46:36,455 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:36,456 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:36,457 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:36,463 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:36,481 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7775-7786] [2023-11-12 00:46:36,521 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:46:36,901 WARN L672 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:46:36,901 WARN L672 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:46:36,901 WARN L672 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:46:36,901 WARN L672 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:46:36,902 WARN L672 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:46:36,902 WARN L672 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:46:36,902 WARN L672 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:46:36,902 WARN L672 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:46:36,902 WARN L672 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:46:36,902 WARN L672 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:46:36,903 WARN L672 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:46:36,903 WARN L672 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:46:36,903 WARN L672 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:46:36,903 WARN L672 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:46:36,903 WARN L672 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:46:36,912 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:46:36,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:36 WrapperNode [2023-11-12 00:46:36,912 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:46:36,913 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:46:36,914 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:46:36,914 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:46:36,923 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:36" (1/1) ... [2023-11-12 00:46:37,040 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:36" (1/1) ... [2023-11-12 00:46:37,156 INFO L138 Inliner]: procedures = 690, calls = 1683, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 655 [2023-11-12 00:46:37,164 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:46:37,165 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:46:37,165 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:46:37,165 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:46:37,176 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:36" (1/1) ... [2023-11-12 00:46:37,176 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:36" (1/1) ... [2023-11-12 00:46:37,196 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:36" (1/1) ... [2023-11-12 00:46:37,197 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:36" (1/1) ... [2023-11-12 00:46:37,251 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:36" (1/1) ... [2023-11-12 00:46:37,276 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:36" (1/1) ... [2023-11-12 00:46:37,283 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:36" (1/1) ... [2023-11-12 00:46:37,288 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:36" (1/1) ... [2023-11-12 00:46:37,299 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:46:37,299 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:46:37,300 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:46:37,300 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:46:37,301 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:36" (1/1) ... [2023-11-12 00:46:37,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:46:37,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64904343-876b-4590-97ee-a138969f2e7d/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:46:37,338 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64904343-876b-4590-97ee-a138969f2e7d/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:46:37,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64904343-876b-4590-97ee-a138969f2e7d/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:46:37,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:46:37,391 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2023-11-12 00:46:37,392 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2023-11-12 00:46:37,392 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2023-11-12 00:46:37,393 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2023-11-12 00:46:37,393 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-12 00:46:37,393 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-12 00:46:37,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:46:37,394 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-12 00:46:37,394 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-12 00:46:37,394 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 00:46:37,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 00:46:37,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:46:37,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:46:37,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:46:37,395 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2023-11-12 00:46:37,396 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2023-11-12 00:46:37,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:46:37,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:46:37,397 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-12 00:46:37,397 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-12 00:46:37,397 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-12 00:46:37,397 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-12 00:46:37,397 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2023-11-12 00:46:37,397 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2023-11-12 00:46:37,398 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:46:37,398 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:46:37,398 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2023-11-12 00:46:37,398 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2023-11-12 00:46:37,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:46:37,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:46:37,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:46:37,400 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2023-11-12 00:46:37,400 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2023-11-12 00:46:37,400 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-12 00:46:37,400 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-12 00:46:37,401 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-12 00:46:37,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-12 00:46:37,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:46:37,401 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2023-11-12 00:46:37,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2023-11-12 00:46:37,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:46:37,721 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:46:37,724 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:46:38,862 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:46:39,076 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:46:39,076 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:46:39,080 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:46:39 BoogieIcfgContainer [2023-11-12 00:46:39,080 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:46:39,085 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:46:39,085 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:46:39,089 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:46:39,090 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:46:33" (1/3) ... [2023-11-12 00:46:39,092 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14f5c4bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:46:39, skipping insertion in model container [2023-11-12 00:46:39,092 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:36" (2/3) ... [2023-11-12 00:46:39,092 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14f5c4bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:46:39, skipping insertion in model container [2023-11-12 00:46:39,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:46:39" (3/3) ... [2023-11-12 00:46:39,094 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_swap_harness.i [2023-11-12 00:46:39,116 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:46:39,117 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:46:39,197 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:46:39,210 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;@4c5d54ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:46:39,211 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:46:39,217 INFO L276 IsEmpty]: Start isEmpty. Operand has 151 states, 73 states have (on average 1.1369863013698631) internal successors, (83), 74 states have internal predecessors, (83), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2023-11-12 00:46:39,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-12 00:46:39,231 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:46:39,232 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:46:39,233 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:46:39,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:46:39,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1102605155, now seen corresponding path program 1 times [2023-11-12 00:46:39,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:46:39,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207989326] [2023-11-12 00:46:39,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:46:39,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:46:39,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:46:40,450 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-12 00:46:40,451 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:46:40,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207989326] [2023-11-12 00:46:40,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207989326] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:46:40,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [539089024] [2023-11-12 00:46:40,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:46:40,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:46:40,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64904343-876b-4590-97ee-a138969f2e7d/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:46:40,460 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64904343-876b-4590-97ee-a138969f2e7d/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:46:40,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64904343-876b-4590-97ee-a138969f2e7d/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:46:41,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:46:41,083 INFO L262 TraceCheckSpWp]: Trace formula consists of 1981 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 00:46:41,093 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:46:41,217 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-12 00:46:41,219 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:46:41,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [539089024] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:46:41,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 00:46:41,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2023-11-12 00:46:41,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2516364] [2023-11-12 00:46:41,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:46:41,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:46:41,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:46:41,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:46:41,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-12 00:46:41,279 INFO L87 Difference]: Start difference. First operand has 151 states, 73 states have (on average 1.1369863013698631) internal successors, (83), 74 states have internal predecessors, (83), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-12 00:46:42,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:46:42,049 INFO L93 Difference]: Finished difference Result 273 states and 398 transitions. [2023-11-12 00:46:42,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 00:46:42,052 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 54 [2023-11-12 00:46:42,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:46:42,066 INFO L225 Difference]: With dead ends: 273 [2023-11-12 00:46:42,066 INFO L226 Difference]: Without dead ends: 151 [2023-11-12 00:46:42,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 52 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 00:46:42,076 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 31 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-12 00:46:42,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 596 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-12 00:46:42,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2023-11-12 00:46:42,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2023-11-12 00:46:42,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 73 states have (on average 1.1232876712328768) internal successors, (82), 75 states have internal predecessors, (82), 61 states have call successors, (61), 15 states have call predecessors, (61), 16 states have return successors, (68), 60 states have call predecessors, (68), 60 states have call successors, (68) [2023-11-12 00:46:42,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 211 transitions. [2023-11-12 00:46:42,149 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 211 transitions. Word has length 54 [2023-11-12 00:46:42,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:46:42,150 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 211 transitions. [2023-11-12 00:46:42,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-12 00:46:42,151 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 211 transitions. [2023-11-12 00:46:42,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-12 00:46:42,155 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:46:42,155 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:46:42,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64904343-876b-4590-97ee-a138969f2e7d/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 00:46:42,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64904343-876b-4590-97ee-a138969f2e7d/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-12 00:46:42,366 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:46:42,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:46:42,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1377790876, now seen corresponding path program 1 times [2023-11-12 00:46:42,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:46:42,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531183458] [2023-11-12 00:46:42,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:46:42,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:46:42,505 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 00:46:42,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [881622532] [2023-11-12 00:46:42,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:46:42,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:46:42,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64904343-876b-4590-97ee-a138969f2e7d/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:46:42,508 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64904343-876b-4590-97ee-a138969f2e7d/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:46:42,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64904343-876b-4590-97ee-a138969f2e7d/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 00:46:43,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:46:43,126 INFO L262 TraceCheckSpWp]: Trace formula consists of 2113 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-12 00:46:43,132 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:46:43,212 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-12 00:46:43,212 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:46:43,212 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:46:43,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531183458] [2023-11-12 00:46:43,213 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 00:46:43,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [881622532] [2023-11-12 00:46:43,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [881622532] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:46:43,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:46:43,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 00:46:43,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282636159] [2023-11-12 00:46:43,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:46:43,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 00:46:43,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:46:43,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 00:46:43,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-12 00:46:43,217 INFO L87 Difference]: Start difference. First operand 151 states and 211 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-12 00:46:43,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:46:43,823 INFO L93 Difference]: Finished difference Result 278 states and 397 transitions. [2023-11-12 00:46:43,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 00:46:43,824 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 63 [2023-11-12 00:46:43,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:46:43,827 INFO L225 Difference]: With dead ends: 278 [2023-11-12 00:46:43,828 INFO L226 Difference]: Without dead ends: 161 [2023-11-12 00:46:43,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-12 00:46:43,831 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 36 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 907 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-12 00:46:43,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 907 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-12 00:46:43,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2023-11-12 00:46:43,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2023-11-12 00:46:43,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 77 states have (on average 1.1168831168831168) internal successors, (86), 79 states have internal predecessors, (86), 66 states have call successors, (66), 16 states have call predecessors, (66), 17 states have return successors, (73), 65 states have call predecessors, (73), 65 states have call successors, (73) [2023-11-12 00:46:43,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 225 transitions. [2023-11-12 00:46:43,871 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 225 transitions. Word has length 63 [2023-11-12 00:46:43,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:46:43,872 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 225 transitions. [2023-11-12 00:46:43,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-12 00:46:43,872 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 225 transitions. [2023-11-12 00:46:43,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-12 00:46:43,882 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:46:43,882 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:46:43,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64904343-876b-4590-97ee-a138969f2e7d/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 00:46:44,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64904343-876b-4590-97ee-a138969f2e7d/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-12 00:46:44,091 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:46:44,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:46:44,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1134301790, now seen corresponding path program 1 times [2023-11-12 00:46:44,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:46:44,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843392318] [2023-11-12 00:46:44,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:46:44,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:46:44,197 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 00:46:44,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1440631497] [2023-11-12 00:46:44,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:46:44,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:46:44,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64904343-876b-4590-97ee-a138969f2e7d/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:46:44,199 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64904343-876b-4590-97ee-a138969f2e7d/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:46:44,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64904343-876b-4590-97ee-a138969f2e7d/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 00:46:45,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:46:45,390 INFO L262 TraceCheckSpWp]: Trace formula consists of 2377 conjuncts, 291 conjunts are in the unsatisfiable core [2023-11-12 00:46:45,425 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:46:45,488 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-12 00:46:46,825 INFO L322 Elim1Store]: treesize reduction 100, result has 28.1 percent of original size [2023-11-12 00:46:46,826 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 60 treesize of output 77 [2023-11-12 00:46:46,901 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-11-12 00:46:46,917 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-11-12 00:46:57,592 INFO L322 Elim1Store]: treesize reduction 684, result has 20.2 percent of original size [2023-11-12 00:46:57,593 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 47 case distinctions, treesize of input 357 treesize of output 621 [2023-11-12 00:46:57,704 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 272 treesize of output 390 [2023-11-12 00:46:58,022 INFO L322 Elim1Store]: treesize reduction 80, result has 5.9 percent of original size [2023-11-12 00:46:58,023 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 189 treesize of output 278 [2023-11-12 00:46:58,347 INFO L322 Elim1Store]: treesize reduction 80, result has 5.9 percent of original size [2023-11-12 00:46:58,348 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 169 treesize of output 258