./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_find_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_4b01f973-0f14-4ec7-a981-f90202888a0d/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b01f973-0f14-4ec7-a981-f90202888a0d/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_4b01f973-0f14-4ec7-a981-f90202888a0d/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b01f973-0f14-4ec7-a981-f90202888a0d/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_find_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b01f973-0f14-4ec7-a981-f90202888a0d/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_4b01f973-0f14-4ec7-a981-f90202888a0d/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 b2aa49e297f60cfce052f243c4868c3f21a4b7a15679d0734b9f9fae5c35ea17 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:12:40,858 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:12:40,982 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b01f973-0f14-4ec7-a981-f90202888a0d/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:12:40,990 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:12:40,992 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:12:41,031 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:12:41,033 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:12:41,033 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:12:41,034 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:12:41,039 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:12:41,040 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:12:41,040 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:12:41,041 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:12:41,043 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:12:41,043 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:12:41,044 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:12:41,044 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:12:41,045 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:12:41,045 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:12:41,046 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:12:41,048 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:12:41,049 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:12:41,050 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:12:41,050 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:12:41,051 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:12:41,051 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:12:41,052 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:12:41,053 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:12:41,053 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:12:41,053 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:12:41,055 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:12:41,055 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:12:41,056 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:12:41,056 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:12:41,057 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:12:41,057 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:12:41,057 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:12:41,058 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:12:41,058 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:12:41,058 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:12:41,059 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:12:41,059 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:12:41,059 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_4b01f973-0f14-4ec7-a981-f90202888a0d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b01f973-0f14-4ec7-a981-f90202888a0d/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b2aa49e297f60cfce052f243c4868c3f21a4b7a15679d0734b9f9fae5c35ea17 [2023-11-12 00:12:41,413 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:12:41,461 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:12:41,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:12:41,466 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:12:41,466 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:12:41,468 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b01f973-0f14-4ec7-a981-f90202888a0d/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/aws-c-common/aws_hash_table_find_harness.i [2023-11-12 00:12:44,688 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:12:45,358 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:12:45,360 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b01f973-0f14-4ec7-a981-f90202888a0d/sv-benchmarks/c/aws-c-common/aws_hash_table_find_harness.i [2023-11-12 00:12:45,417 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b01f973-0f14-4ec7-a981-f90202888a0d/bin/utaipan-verify-NcY6lQBIFX/data/bb7dfaf77/ad243ef072104d8a856d423dfc1605c8/FLAGda9657865 [2023-11-12 00:12:45,437 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b01f973-0f14-4ec7-a981-f90202888a0d/bin/utaipan-verify-NcY6lQBIFX/data/bb7dfaf77/ad243ef072104d8a856d423dfc1605c8 [2023-11-12 00:12:45,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:12:45,444 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:12:45,447 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:12:45,448 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:12:45,453 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:12:45,453 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:12:45" (1/1) ... [2023-11-12 00:12:45,454 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dac1216 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:45, skipping insertion in model container [2023-11-12 00:12:45,455 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:12:45" (1/1) ... [2023-11-12 00:12:45,714 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:12:46,068 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_4b01f973-0f14-4ec7-a981-f90202888a0d/sv-benchmarks/c/aws-c-common/aws_hash_table_find_harness.i[4493,4506] [2023-11-12 00:12:46,077 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_4b01f973-0f14-4ec7-a981-f90202888a0d/sv-benchmarks/c/aws-c-common/aws_hash_table_find_harness.i[4553,4566] [2023-11-12 00:12:47,294 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:47,295 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:47,296 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:47,298 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:47,299 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:47,323 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:47,324 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:47,326 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:47,327 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:47,330 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:47,331 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:47,332 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:47,333 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:47,875 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 00:12:47,877 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 00:12:47,880 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 00:12:47,882 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 00:12:47,883 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 00:12:47,885 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 00:12:47,886 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 00:12:47,887 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 00:12:47,888 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 00:12:47,889 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 00:12:48,616 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:48,618 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:48,664 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:48,668 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:48,677 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:48,677 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:48,700 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:48,702 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:48,703 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:48,703 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:48,704 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:48,705 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:48,705 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:48,762 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:12:48,820 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:12:48,845 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_4b01f973-0f14-4ec7-a981-f90202888a0d/sv-benchmarks/c/aws-c-common/aws_hash_table_find_harness.i[4493,4506] [2023-11-12 00:12:48,846 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_4b01f973-0f14-4ec7-a981-f90202888a0d/sv-benchmarks/c/aws-c-common/aws_hash_table_find_harness.i[4553,4566] [2023-11-12 00:12:48,908 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:48,909 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:48,909 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:48,910 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:48,912 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:48,920 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:48,921 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:48,922 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:48,923 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:48,924 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:48,924 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:48,925 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:48,925 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:48,963 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 00:12:48,964 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 00:12:48,965 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 00:12:48,965 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 00:12:48,966 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 00:12:48,967 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 00:12:48,968 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 00:12:48,969 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 00:12:48,970 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 00:12:48,970 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 00:12:49,066 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7558-7569] [2023-11-12 00:12:49,188 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:49,189 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:49,198 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:49,199 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:49,203 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:49,204 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:49,221 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:49,222 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:49,223 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:49,223 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:49,223 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:49,224 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:49,224 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:12:49,247 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:12:49,571 WARN L672 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:12:49,571 WARN L672 CHandler]: The function equals_fn is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:12:49,572 WARN L672 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:12:49,572 WARN L672 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:12:49,572 WARN L672 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:12:49,572 WARN L672 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:12:49,572 WARN L672 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:12:49,572 WARN L672 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:12:49,573 WARN L672 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:12:49,573 WARN L672 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:12:49,573 WARN L672 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:12:49,573 WARN L672 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:12:49,573 WARN L672 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:12:49,573 WARN L672 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:12:49,574 WARN L672 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:12:49,574 WARN L672 CHandler]: The function callback is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:12:49,574 WARN L672 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:12:49,574 WARN L672 CHandler]: The function aws_array_list_ensure_capacity is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:12:49,582 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:12:49,583 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:49 WrapperNode [2023-11-12 00:12:49,583 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:12:49,584 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:12:49,584 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:12:49,584 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:12:49,592 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:49" (1/1) ... [2023-11-12 00:12:49,720 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:49" (1/1) ... [2023-11-12 00:12:49,796 INFO L138 Inliner]: procedures = 772, calls = 2456, calls flagged for inlining = 69, calls inlined = 20, statements flattened = 860 [2023-11-12 00:12:49,797 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:12:49,798 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:12:49,798 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:12:49,798 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:12:49,808 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:49" (1/1) ... [2023-11-12 00:12:49,808 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:49" (1/1) ... [2023-11-12 00:12:49,818 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:49" (1/1) ... [2023-11-12 00:12:49,818 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:49" (1/1) ... [2023-11-12 00:12:49,860 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:49" (1/1) ... [2023-11-12 00:12:49,866 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:49" (1/1) ... [2023-11-12 00:12:49,875 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:49" (1/1) ... [2023-11-12 00:12:49,882 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:49" (1/1) ... [2023-11-12 00:12:49,896 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:12:49,897 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:12:49,897 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:12:49,897 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:12:49,898 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:49" (1/1) ... [2023-11-12 00:12:49,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:12:49,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b01f973-0f14-4ec7-a981-f90202888a0d/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:12:49,946 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b01f973-0f14-4ec7-a981-f90202888a0d/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:12:49,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-12 00:12:49,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:12:49,997 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-12 00:12:49,997 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-12 00:12:49,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 00:12:49,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 00:12:49,999 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2023-11-12 00:12:49,999 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2023-11-12 00:12:49,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:12:49,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:12:49,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:12:49,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:12:50,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:12:50,000 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-12 00:12:50,000 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-12 00:12:50,000 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-12 00:12:50,001 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-12 00:12:50,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:12:50,001 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2023-11-12 00:12:50,001 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2023-11-12 00:12:50,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:12:50,002 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-12 00:12:50,002 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-12 00:12:50,002 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_find [2023-11-12 00:12:50,002 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_find [2023-11-12 00:12:50,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:12:50,002 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_for [2023-11-12 00:12:50,003 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_for [2023-11-12 00:12:50,003 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2023-11-12 00:12:50,003 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2023-11-12 00:12:50,003 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_keys_eq [2023-11-12 00:12:50,003 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_keys_eq [2023-11-12 00:12:50,003 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_equals [2023-11-12 00:12:50,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_equals [2023-11-12 00:12:50,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:12:50,004 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2023-11-12 00:12:50,004 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2023-11-12 00:12:50,004 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_hasher [2023-11-12 00:12:50,005 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_hasher [2023-11-12 00:12:50,005 INFO L130 BoogieDeclarations]: Found specification of procedure s_safe_eq_check [2023-11-12 00:12:50,005 INFO L138 BoogieDeclarations]: Found implementation of procedure s_safe_eq_check [2023-11-12 00:12:50,005 INFO L130 BoogieDeclarations]: Found specification of procedure s_find_entry [2023-11-12 00:12:50,005 INFO L138 BoogieDeclarations]: Found implementation of procedure s_find_entry [2023-11-12 00:12:50,005 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:12:50,006 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:12:50,006 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2023-11-12 00:12:50,006 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2023-11-12 00:12:50,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:12:49,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b01f973-0f14-4ec7-a981-f90202888a0d/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:12:50,008 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-12 00:12:50,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-12 00:12:50,008 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2023-11-12 00:12:50,008 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2023-11-12 00:12:50,009 INFO L130 BoogieDeclarations]: Found specification of procedure uninterpreted_equals [2023-11-12 00:12:50,009 INFO L138 BoogieDeclarations]: Found implementation of procedure uninterpreted_equals [2023-11-12 00:12:50,009 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-12 00:12:50,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-12 00:12:50,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:12:50,415 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:12:50,418 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:12:50,557 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume !true; [2023-11-12 00:12:50,645 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !true; [2023-11-12 00:12:50,967 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume !true; [2023-11-12 00:12:51,781 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:12:52,049 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:12:52,050 INFO L302 CfgBuilder]: Removed 7 assume(true) statements. [2023-11-12 00:12:52,053 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:12:52 BoogieIcfgContainer [2023-11-12 00:12:52,053 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:12:52,056 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:12:52,056 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:12:52,059 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:12:52,060 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:12:45" (1/3) ... [2023-11-12 00:12:52,061 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@527f4019 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:12:52, skipping insertion in model container [2023-11-12 00:12:52,061 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:49" (2/3) ... [2023-11-12 00:12:52,061 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@527f4019 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:12:52, skipping insertion in model container [2023-11-12 00:12:52,061 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:12:52" (3/3) ... [2023-11-12 00:12:52,063 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_hash_table_find_harness.i [2023-11-12 00:12:52,082 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:12:52,082 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:12:52,138 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:12:52,145 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;@437af4a6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:12:52,145 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:12:52,152 INFO L276 IsEmpty]: Start isEmpty. Operand has 200 states, 111 states have (on average 1.2072072072072073) internal successors, (134), 109 states have internal predecessors, (134), 68 states have call successors, (68), 22 states have call predecessors, (68), 22 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2023-11-12 00:12:52,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-12 00:12:52,173 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:12:52,174 INFO L195 NwaCegarLoop]: trace histogram [14, 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] [2023-11-12 00:12:52,175 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:12:52,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:12:52,183 INFO L85 PathProgramCache]: Analyzing trace with hash -873117292, now seen corresponding path program 1 times [2023-11-12 00:12:52,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:12:52,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749199249] [2023-11-12 00:12:52,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:12:52,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:12:52,734 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 00:12:52,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [146627745] [2023-11-12 00:12:52,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:12:52,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:12:52,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b01f973-0f14-4ec7-a981-f90202888a0d/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:12:52,750 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b01f973-0f14-4ec7-a981-f90202888a0d/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:12:52,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b01f973-0f14-4ec7-a981-f90202888a0d/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:12:53,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:12:53,599 INFO L262 TraceCheckSpWp]: Trace formula consists of 2591 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-12 00:12:53,621 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:12:53,714 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-12 00:12:53,714 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:12:53,714 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:12:53,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749199249] [2023-11-12 00:12:53,715 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 00:12:53,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [146627745] [2023-11-12 00:12:53,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [146627745] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:12:53,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:12:53,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 00:12:53,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480807906] [2023-11-12 00:12:53,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:12:53,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:12:53,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:12:53,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:12:53,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:12:53,765 INFO L87 Difference]: Start difference. First operand has 200 states, 111 states have (on average 1.2072072072072073) internal successors, (134), 109 states have internal predecessors, (134), 68 states have call successors, (68), 22 states have call predecessors, (68), 22 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) Second operand has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2023-11-12 00:12:54,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:12:54,543 INFO L93 Difference]: Finished difference Result 396 states and 554 transitions. [2023-11-12 00:12:54,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 00:12:54,546 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) Word has length 131 [2023-11-12 00:12:54,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:12:54,558 INFO L225 Difference]: With dead ends: 396 [2023-11-12 00:12:54,558 INFO L226 Difference]: Without dead ends: 202 [2023-11-12 00:12:54,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 00:12:54,577 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 1 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 912 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-12 00:12:54,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 912 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-12 00:12:54,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2023-11-12 00:12:54,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2023-11-12 00:12:54,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 110 states have (on average 1.190909090909091) internal successors, (131), 111 states have internal predecessors, (131), 68 states have call successors, (68), 22 states have call predecessors, (68), 23 states have return successors, (68), 68 states have call predecessors, (68), 67 states have call successors, (68) [2023-11-12 00:12:54,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 267 transitions. [2023-11-12 00:12:54,647 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 267 transitions. Word has length 131 [2023-11-12 00:12:54,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:12:54,649 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 267 transitions. [2023-11-12 00:12:54,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2023-11-12 00:12:54,650 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 267 transitions. [2023-11-12 00:12:54,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-12 00:12:54,654 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:12:54,654 INFO L195 NwaCegarLoop]: trace histogram [14, 3, 3, 3, 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] [2023-11-12 00:12:54,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b01f973-0f14-4ec7-a981-f90202888a0d/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 00:12:54,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b01f973-0f14-4ec7-a981-f90202888a0d/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-12 00:12:54,866 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:12:54,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:12:54,867 INFO L85 PathProgramCache]: Analyzing trace with hash -330384020, now seen corresponding path program 1 times [2023-11-12 00:12:54,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:12:54,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639432593] [2023-11-12 00:12:54,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:12:54,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:12:55,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:12:56,319 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2023-11-12 00:12:56,320 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:12:56,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639432593] [2023-11-12 00:12:56,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639432593] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:12:56,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:12:56,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 00:12:56,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553514844] [2023-11-12 00:12:56,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:12:56,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:12:56,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:12:56,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:12:56,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:12:56,325 INFO L87 Difference]: Start difference. First operand 202 states and 267 transitions. Second operand has 5 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) [2023-11-12 00:12:56,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:12:56,839 INFO L93 Difference]: Finished difference Result 322 states and 429 transitions. [2023-11-12 00:12:56,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 00:12:56,840 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) Word has length 139 [2023-11-12 00:12:56,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:12:56,847 INFO L225 Difference]: With dead ends: 322 [2023-11-12 00:12:56,847 INFO L226 Difference]: Without dead ends: 204 [2023-11-12 00:12:56,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 00:12:56,857 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 0 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-12 00:12:56,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 823 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-12 00:12:56,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2023-11-12 00:12:56,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2023-11-12 00:12:56,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 111 states have (on average 1.1891891891891893) internal successors, (132), 113 states have internal predecessors, (132), 68 states have call successors, (68), 22 states have call predecessors, (68), 24 states have return successors, (71), 68 states have call predecessors, (71), 67 states have call successors, (71) [2023-11-12 00:12:56,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 271 transitions. [2023-11-12 00:12:56,900 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 271 transitions. Word has length 139 [2023-11-12 00:12:56,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:12:56,903 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 271 transitions. [2023-11-12 00:12:56,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) [2023-11-12 00:12:56,903 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 271 transitions. [2023-11-12 00:12:56,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-12 00:12:56,910 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:12:56,914 INFO L195 NwaCegarLoop]: trace histogram [14, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:12:56,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:12:56,915 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:12:56,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:12:56,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1336224362, now seen corresponding path program 1 times [2023-11-12 00:12:56,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:12:56,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372569098] [2023-11-12 00:12:56,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:12:56,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:12:57,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:12:58,839 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2023-11-12 00:12:58,840 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:12:58,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372569098] [2023-11-12 00:12:58,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372569098] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:12:58,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:12:58,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 00:12:58,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036987015] [2023-11-12 00:12:58,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:12:58,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:12:58,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:12:58,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:12:58,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:12:58,844 INFO L87 Difference]: Start difference. First operand 204 states and 271 transitions. Second operand has 5 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2023-11-12 00:12:59,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:12:59,402 INFO L93 Difference]: Finished difference Result 210 states and 276 transitions. [2023-11-12 00:12:59,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 00:12:59,403 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 143 [2023-11-12 00:12:59,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:12:59,407 INFO L225 Difference]: With dead ends: 210 [2023-11-12 00:12:59,407 INFO L226 Difference]: Without dead ends: 208 [2023-11-12 00:12:59,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 00:12:59,408 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 5 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-12 00:12:59,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 893 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-12 00:12:59,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2023-11-12 00:12:59,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2023-11-12 00:12:59,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 114 states have (on average 1.1842105263157894) internal successors, (135), 116 states have internal predecessors, (135), 68 states have call successors, (68), 23 states have call predecessors, (68), 25 states have return successors, (71), 68 states have call predecessors, (71), 67 states have call successors, (71) [2023-11-12 00:12:59,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 274 transitions. [2023-11-12 00:12:59,452 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 274 transitions. Word has length 143 [2023-11-12 00:12:59,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:12:59,453 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 274 transitions. [2023-11-12 00:12:59,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2023-11-12 00:12:59,454 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 274 transitions. [2023-11-12 00:12:59,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-12 00:12:59,456 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:12:59,456 INFO L195 NwaCegarLoop]: trace histogram [14, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:12:59,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:12:59,457 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:12:59,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:12:59,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1104368312, now seen corresponding path program 1 times [2023-11-12 00:12:59,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:12:59,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488908621] [2023-11-12 00:12:59,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:12:59,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:12:59,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:13:02,209 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2023-11-12 00:13:02,210 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:13:02,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488908621] [2023-11-12 00:13:02,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488908621] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:13:02,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1056965322] [2023-11-12 00:13:02,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:13:02,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:13:02,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b01f973-0f14-4ec7-a981-f90202888a0d/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:13:02,212 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b01f973-0f14-4ec7-a981-f90202888a0d/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:13:02,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b01f973-0f14-4ec7-a981-f90202888a0d/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 00:13:02,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:13:02,931 INFO L262 TraceCheckSpWp]: Trace formula consists of 2648 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-12 00:13:02,941 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:13:03,019 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2023-11-12 00:13:03,020 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:13:03,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1056965322] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:13:03,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 00:13:03,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2023-11-12 00:13:03,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238964773] [2023-11-12 00:13:03,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:13:03,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 00:13:03,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:13:03,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 00:13:03,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2023-11-12 00:13:03,025 INFO L87 Difference]: Start difference. First operand 208 states and 274 transitions. Second operand has 6 states, 3 states have (on average 22.666666666666668) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2023-11-12 00:13:03,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:13:03,648 INFO L93 Difference]: Finished difference Result 400 states and 528 transitions. [2023-11-12 00:13:03,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:13:03,649 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 3 states have (on average 22.666666666666668) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 152 [2023-11-12 00:13:03,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:13:03,652 INFO L225 Difference]: With dead ends: 400 [2023-11-12 00:13:03,652 INFO L226 Difference]: Without dead ends: 210 [2023-11-12 00:13:03,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2023-11-12 00:13:03,654 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 0 mSDsluCounter, 821 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1032 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-12 00:13:03,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1032 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-12 00:13:03,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2023-11-12 00:13:03,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2023-11-12 00:13:03,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 115 states have (on average 1.182608695652174) internal successors, (136), 118 states have internal predecessors, (136), 68 states have call successors, (68), 23 states have call predecessors, (68), 26 states have return successors, (75), 68 states have call predecessors, (75), 67 states have call successors, (75) [2023-11-12 00:13:03,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 279 transitions. [2023-11-12 00:13:03,685 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 279 transitions. Word has length 152 [2023-11-12 00:13:03,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:13:03,686 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 279 transitions. [2023-11-12 00:13:03,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 3 states have (on average 22.666666666666668) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2023-11-12 00:13:03,686 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 279 transitions. [2023-11-12 00:13:03,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-11-12 00:13:03,693 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:13:03,693 INFO L195 NwaCegarLoop]: trace histogram [14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:13:03,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b01f973-0f14-4ec7-a981-f90202888a0d/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 00:13:03,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b01f973-0f14-4ec7-a981-f90202888a0d/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:13:03,904 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:13:03,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:13:03,904 INFO L85 PathProgramCache]: Analyzing trace with hash -82083788, now seen corresponding path program 1 times [2023-11-12 00:13:03,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:13:03,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183034185] [2023-11-12 00:13:03,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:13:03,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:13:04,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:13:05,646 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-11-12 00:13:05,646 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:13:05,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183034185] [2023-11-12 00:13:05,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183034185] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:13:05,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [539019803] [2023-11-12 00:13:05,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:13:05,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:13:05,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b01f973-0f14-4ec7-a981-f90202888a0d/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:13:05,648 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b01f973-0f14-4ec7-a981-f90202888a0d/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:13:05,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b01f973-0f14-4ec7-a981-f90202888a0d/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 00:13:06,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:13:06,427 INFO L262 TraceCheckSpWp]: Trace formula consists of 2672 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-12 00:13:06,435 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:13:06,671 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-12 00:13:07,101 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2023-11-12 00:13:07,101 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:13:07,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [539019803] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:13:07,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 00:13:07,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [11] total 20 [2023-11-12 00:13:07,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839867166] [2023-11-12 00:13:07,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:13:07,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-12 00:13:07,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:13:07,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-12 00:13:07,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2023-11-12 00:13:07,105 INFO L87 Difference]: Start difference. First operand 210 states and 279 transitions. Second operand has 12 states, 9 states have (on average 7.888888888888889) internal successors, (71), 10 states have internal predecessors, (71), 5 states have call successors, (37), 3 states have call predecessors, (37), 5 states have return successors, (34), 5 states have call predecessors, (34), 5 states have call successors, (34) [2023-11-12 00:13:11,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-12 00:13:13,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-12 00:13:15,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-12 00:13:17,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-12 00:13:19,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-12 00:13:21,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-12 00:13:24,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-12 00:13:26,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-12 00:13:28,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-12 00:13:30,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-12 00:13:32,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-12 00:13:34,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-12 00:13:36,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]