./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 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_6b5e3310-4e3e-42d2-be38-3a39a918c648/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5e3310-4e3e-42d2-be38-3a39a918c648/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5e3310-4e3e-42d2-be38-3a39a918c648/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5e3310-4e3e-42d2-be38-3a39a918c648/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5e3310-4e3e-42d2-be38-3a39a918c648/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5e3310-4e3e-42d2-be38-3a39a918c648/bin/uautomizer-verify-bycVGegfSx --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a871e941a14cf19147765419aa3746af2f9add859ed1f61f31f704f97208fdb0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:21:01,088 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:21:01,157 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5e3310-4e3e-42d2-be38-3a39a918c648/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-21 22:21:01,162 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:21:01,163 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:21:01,186 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:21:01,187 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:21:01,188 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:21:01,188 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:21:01,189 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:21:01,189 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:21:01,190 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:21:01,191 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:21:01,191 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:21:01,192 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:21:01,193 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:21:01,193 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:21:01,194 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:21:01,194 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:21:01,195 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:21:01,195 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:21:01,196 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:21:01,196 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:21:01,197 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:21:01,198 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:21:01,198 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:21:01,199 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:21:01,199 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:21:01,199 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:21:01,200 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:21:01,201 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:21:01,201 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:21:01,201 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:21:01,202 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:21:01,202 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:21:01,203 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:21:01,203 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:21:01,204 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:21:01,204 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:21:01,205 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_6b5e3310-4e3e-42d2-be38-3a39a918c648/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5e3310-4e3e-42d2-be38-3a39a918c648/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a871e941a14cf19147765419aa3746af2f9add859ed1f61f31f704f97208fdb0 [2023-11-21 22:21:01,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:21:01,567 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:21:01,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:21:01,572 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:21:01,575 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:21:01,577 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5e3310-4e3e-42d2-be38-3a39a918c648/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i [2023-11-21 22:21:04,818 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:21:05,468 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:21:05,469 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5e3310-4e3e-42d2-be38-3a39a918c648/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i [2023-11-21 22:21:05,509 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5e3310-4e3e-42d2-be38-3a39a918c648/bin/uautomizer-verify-bycVGegfSx/data/56fe61112/2d605258b1e546bfa805f0b62544329b/FLAGf59f20fe4 [2023-11-21 22:21:05,527 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5e3310-4e3e-42d2-be38-3a39a918c648/bin/uautomizer-verify-bycVGegfSx/data/56fe61112/2d605258b1e546bfa805f0b62544329b [2023-11-21 22:21:05,538 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:21:05,540 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:21:05,541 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:21:05,541 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:21:05,546 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:21:05,547 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:21:05" (1/1) ... [2023-11-21 22:21:05,548 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4da6d19b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:05, skipping insertion in model container [2023-11-21 22:21:05,548 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:21:05" (1/1) ... [2023-11-21 22:21:05,696 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:21:06,027 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_6b5e3310-4e3e-42d2-be38-3a39a918c648/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i[4495,4508] [2023-11-21 22:21:06,036 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_6b5e3310-4e3e-42d2-be38-3a39a918c648/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i[4555,4568] [2023-11-21 22:21:07,333 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:07,334 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:07,335 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:07,336 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:07,338 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:07,354 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:07,355 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:07,357 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:07,358 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:07,360 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:07,361 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:07,362 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:07,363 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:07,880 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-21 22:21:07,882 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-21 22:21:07,883 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-21 22:21:07,885 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-21 22:21:07,887 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-21 22:21:07,888 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-21 22:21:07,889 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-21 22:21:07,890 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-21 22:21:07,891 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-21 22:21:07,892 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-21 22:21:08,606 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:08,606 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:08,642 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:08,645 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:08,652 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:08,653 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:08,680 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:08,682 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:08,682 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:08,684 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:08,684 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:08,685 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:08,686 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:08,750 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:21:08,808 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:21:08,834 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_6b5e3310-4e3e-42d2-be38-3a39a918c648/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i[4495,4508] [2023-11-21 22:21:08,835 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_6b5e3310-4e3e-42d2-be38-3a39a918c648/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i[4555,4568] [2023-11-21 22:21:08,901 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:08,901 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:08,902 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:08,902 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:08,903 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:08,918 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:08,920 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:08,922 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:08,922 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:08,923 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:08,924 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:08,925 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:08,925 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:08,969 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-21 22:21:08,970 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-21 22:21:08,971 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-21 22:21:08,972 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-21 22:21:08,974 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-21 22:21:08,975 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-21 22:21:08,976 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-21 22:21:08,976 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-21 22:21:08,977 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-21 22:21:08,978 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-21 22:21:09,034 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7576-7587] [2023-11-21 22:21:09,201 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:09,201 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:09,210 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:09,211 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:09,215 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:09,215 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:09,230 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:09,231 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:09,232 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:09,232 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:09,233 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:09,233 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:09,234 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:21:09,266 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:21:09,624 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:21:09,625 WARN L675 CHandler]: The function equals_fn is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:21:09,625 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:21:09,625 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:21:09,625 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:21:09,625 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:21:09,626 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:21:09,626 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:21:09,627 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:21:09,627 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:21:09,627 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:21:09,627 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:21:09,627 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:21:09,628 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:21:09,628 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:21:09,628 WARN L675 CHandler]: The function callback is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:21:09,628 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:21:09,628 WARN L675 CHandler]: The function aws_array_list_ensure_capacity is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:21:09,637 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:21:09,638 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:09 WrapperNode [2023-11-21 22:21:09,639 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:21:09,640 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:21:09,640 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:21:09,640 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:21:09,657 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:09" (1/1) ... [2023-11-21 22:21:09,802 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:09" (1/1) ... [2023-11-21 22:21:09,933 INFO L138 Inliner]: procedures = 773, calls = 2490, calls flagged for inlining = 67, calls inlined = 21, statements flattened = 1362 [2023-11-21 22:21:09,935 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:21:09,936 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:21:09,937 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:21:09,937 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:21:09,949 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:09" (1/1) ... [2023-11-21 22:21:09,949 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:09" (1/1) ... [2023-11-21 22:21:09,968 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:09" (1/1) ... [2023-11-21 22:21:09,984 WARN L106 HeapSplitter]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2023-11-21 22:21:09,984 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:09" (1/1) ... [2023-11-21 22:21:09,985 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:09" (1/1) ... [2023-11-21 22:21:10,057 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:09" (1/1) ... [2023-11-21 22:21:10,066 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:09" (1/1) ... [2023-11-21 22:21:10,081 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:09" (1/1) ... [2023-11-21 22:21:10,091 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:09" (1/1) ... [2023-11-21 22:21:10,112 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:21:10,113 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:21:10,114 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:21:10,114 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:21:10,115 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:09" (1/1) ... [2023-11-21 22:21:10,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:21:10,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5e3310-4e3e-42d2-be38-3a39a918c648/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:21:10,167 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5e3310-4e3e-42d2-be38-3a39a918c648/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:21:10,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5e3310-4e3e-42d2-be38-3a39a918c648/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:21:10,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-21 22:21:10,215 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-21 22:21:10,215 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-21 22:21:10,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2023-11-21 22:21:10,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:21:10,216 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-21 22:21:10,217 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-21 22:21:10,217 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 22:21:10,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 22:21:10,217 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_create [2023-11-21 22:21:10,217 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_create [2023-11-21 22:21:10,218 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2023-11-21 22:21:10,218 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2023-11-21 22:21:10,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:21:10,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:21:10,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 22:21:10,219 INFO L130 BoogieDeclarations]: Found specification of procedure s_emplace_item [2023-11-21 22:21:10,219 INFO L138 BoogieDeclarations]: Found implementation of procedure s_emplace_item [2023-11-21 22:21:10,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:21:10,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:21:10,221 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-21 22:21:10,221 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-21 22:21:10,221 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-21 22:21:10,221 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-21 22:21:10,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-21 22:21:10,222 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2023-11-21 22:21:10,222 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2023-11-21 22:21:10,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:21:10,222 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2023-11-21 22:21:10,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2023-11-21 22:21:10,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 22:21:10,223 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-21 22:21:10,223 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-21 22:21:10,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:21:10,223 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_for [2023-11-21 22:21:10,223 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_for [2023-11-21 22:21:10,224 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2023-11-21 22:21:10,224 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2023-11-21 22:21:10,224 INFO L130 BoogieDeclarations]: Found specification of procedure s_update_template_size [2023-11-21 22:21:10,224 INFO L138 BoogieDeclarations]: Found implementation of procedure s_update_template_size [2023-11-21 22:21:10,224 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_keys_eq [2023-11-21 22:21:10,224 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_keys_eq [2023-11-21 22:21:10,225 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_equals [2023-11-21 22:21:10,225 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_equals [2023-11-21 22:21:10,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:21:10,226 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2023-11-21 22:21:10,226 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2023-11-21 22:21:10,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 22:21:10,227 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_calloc [2023-11-21 22:21:10,227 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_calloc [2023-11-21 22:21:10,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-21 22:21:10,227 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2023-11-21 22:21:10,227 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2023-11-21 22:21:10,227 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_hasher [2023-11-21 22:21:10,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_hasher [2023-11-21 22:21:10,227 INFO L130 BoogieDeclarations]: Found specification of procedure s_safe_eq_check [2023-11-21 22:21:10,228 INFO L138 BoogieDeclarations]: Found implementation of procedure s_safe_eq_check [2023-11-21 22:21:10,229 INFO L130 BoogieDeclarations]: Found specification of procedure s_find_entry [2023-11-21 22:21:10,232 INFO L138 BoogieDeclarations]: Found implementation of procedure s_find_entry [2023-11-21 22:21:10,233 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:21:10,233 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:21:10,234 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2023-11-21 22:21:10,234 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2023-11-21 22:21:10,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 22:21:10,235 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-21 22:21:10,236 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-21 22:21:10,236 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-21 22:21:10,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-21 22:21:10,242 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2023-11-21 22:21:10,242 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2023-11-21 22:21:10,242 INFO L130 BoogieDeclarations]: Found specification of procedure s_alloc_state [2023-11-21 22:21:10,243 INFO L138 BoogieDeclarations]: Found implementation of procedure s_alloc_state [2023-11-21 22:21:10,243 INFO L130 BoogieDeclarations]: Found specification of procedure uninterpreted_equals [2023-11-21 22:21:10,243 INFO L138 BoogieDeclarations]: Found implementation of procedure uninterpreted_equals [2023-11-21 22:21:10,243 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-21 22:21:10,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-21 22:21:10,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:21:10,748 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:21:10,751 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:21:11,233 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume !true; [2023-11-21 22:21:11,284 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !true; [2023-11-21 22:21:12,766 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##7: assume !true; [2023-11-21 22:21:12,766 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##41: assume !true; [2023-11-21 22:21:13,857 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:21:14,561 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:21:14,562 INFO L308 CfgBuilder]: Removed 11 assume(true) statements. [2023-11-21 22:21:14,564 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:21:14 BoogieIcfgContainer [2023-11-21 22:21:14,564 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:21:14,569 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:21:14,569 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:21:14,573 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:21:14,573 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:21:05" (1/3) ... [2023-11-21 22:21:14,575 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78b16e0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:21:14, skipping insertion in model container [2023-11-21 22:21:14,575 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:09" (2/3) ... [2023-11-21 22:21:14,576 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78b16e0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:21:14, skipping insertion in model container [2023-11-21 22:21:14,576 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:21:14" (3/3) ... [2023-11-21 22:21:14,577 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_hash_table_create_harness.i [2023-11-21 22:21:14,599 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:21:14,599 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:21:14,684 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:21:14,696 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=PETRI_NET, 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;@53739bb6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:21:14,697 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:21:14,705 INFO L276 IsEmpty]: Start isEmpty. Operand has 281 states, 167 states have (on average 1.251497005988024) internal successors, (209), 164 states have internal predecessors, (209), 86 states have call successors, (86), 30 states have call predecessors, (86), 30 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2023-11-21 22:21:14,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-21 22:21:14,723 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:21:14,724 INFO L195 NwaCegarLoop]: trace histogram [9, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:14,725 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:21:14,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:14,734 INFO L85 PathProgramCache]: Analyzing trace with hash -380421883, now seen corresponding path program 1 times [2023-11-21 22:21:14,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:14,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447245517] [2023-11-21 22:21:14,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:14,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:15,317 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:21:15,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1091122361] [2023-11-21 22:21:15,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:15,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:21:15,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5e3310-4e3e-42d2-be38-3a39a918c648/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:21:15,324 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5e3310-4e3e-42d2-be38-3a39a918c648/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:21:15,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5e3310-4e3e-42d2-be38-3a39a918c648/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 22:21:16,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:16,252 INFO L262 TraceCheckSpWp]: Trace formula consists of 2490 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-21 22:21:16,264 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:21:16,367 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-21 22:21:16,368 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:21:16,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:16,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447245517] [2023-11-21 22:21:16,368 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:21:16,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1091122361] [2023-11-21 22:21:16,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1091122361] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:16,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:16,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:21:16,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604420702] [2023-11-21 22:21:16,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:16,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:21:16,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:16,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:21:16,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:21:16,419 INFO L87 Difference]: Start difference. First operand has 281 states, 167 states have (on average 1.251497005988024) internal successors, (209), 164 states have internal predecessors, (209), 86 states have call successors, (86), 30 states have call predecessors, (86), 30 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) Second operand has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-21 22:21:18,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:21:18,085 INFO L93 Difference]: Finished difference Result 558 states and 783 transitions. [2023-11-21 22:21:18,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:21:18,092 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) Word has length 89 [2023-11-21 22:21:18,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:21:18,107 INFO L225 Difference]: With dead ends: 558 [2023-11-21 22:21:18,107 INFO L226 Difference]: Without dead ends: 281 [2023-11-21 22:21:18,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:21:18,118 INFO L413 NwaCegarLoop]: 325 mSDtfsCounter, 1 mSDsluCounter, 971 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1296 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-21 22:21:18,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1296 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-21 22:21:18,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2023-11-21 22:21:18,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281. [2023-11-21 22:21:18,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 163 states have (on average 1.2269938650306749) internal successors, (200), 165 states have internal predecessors, (200), 86 states have call successors, (86), 30 states have call predecessors, (86), 31 states have return successors, (88), 85 states have call predecessors, (88), 84 states have call successors, (88) [2023-11-21 22:21:18,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 374 transitions. [2023-11-21 22:21:18,197 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 374 transitions. Word has length 89 [2023-11-21 22:21:18,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:21:18,198 INFO L495 AbstractCegarLoop]: Abstraction has 281 states and 374 transitions. [2023-11-21 22:21:18,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-21 22:21:18,199 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 374 transitions. [2023-11-21 22:21:18,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-21 22:21:18,204 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:21:18,204 INFO L195 NwaCegarLoop]: trace histogram [9, 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] [2023-11-21 22:21:18,239 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5e3310-4e3e-42d2-be38-3a39a918c648/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-21 22:21:18,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5e3310-4e3e-42d2-be38-3a39a918c648/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-21 22:21:18,431 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:21:18,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:18,431 INFO L85 PathProgramCache]: Analyzing trace with hash 865318607, now seen corresponding path program 1 times [2023-11-21 22:21:18,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:18,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241788578] [2023-11-21 22:21:18,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:18,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:18,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:20,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:21:20,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:21,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:21:21,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:21,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-21 22:21:21,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:21,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-21 22:21:21,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:21,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-21 22:21:21,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:21,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:21:21,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:21,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:21:21,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:21,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:21:21,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:21,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-21 22:21:21,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:21,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-21 22:21:21,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:21,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:21:21,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:21,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-21 22:21:21,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:21,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-21 22:21:21,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:21,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-21 22:21:21,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:21,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-21 22:21:21,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:21,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-21 22:21:21,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:21,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-21 22:21:21,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:21,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-21 22:21:21,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:21,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-21 22:21:21,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:21,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-21 22:21:21,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:21,698 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2023-11-21 22:21:21,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:21,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241788578] [2023-11-21 22:21:21,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241788578] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:21,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:21,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-21 22:21:21,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612578407] [2023-11-21 22:21:21,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:21,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-21 22:21:21,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:21,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-21 22:21:21,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-21 22:21:21,704 INFO L87 Difference]: Start difference. First operand 281 states and 374 transitions. Second operand has 11 states, 9 states have (on average 4.555555555555555) internal successors, (41), 7 states have internal predecessors, (41), 4 states have call successors, (23), 5 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2023-11-21 22:21:24,420 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:21:31,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:21:31,220 INFO L93 Difference]: Finished difference Result 609 states and 823 transitions. [2023-11-21 22:21:31,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-21 22:21:31,221 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 4.555555555555555) internal successors, (41), 7 states have internal predecessors, (41), 4 states have call successors, (23), 5 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 93 [2023-11-21 22:21:31,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:21:31,228 INFO L225 Difference]: With dead ends: 609 [2023-11-21 22:21:31,228 INFO L226 Difference]: Without dead ends: 346 [2023-11-21 22:21:31,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-11-21 22:21:31,231 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 373 mSDsluCounter, 775 mSDsCounter, 0 mSdLazyCounter, 1436 mSolverCounterSat, 321 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 1757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 321 IncrementalHoareTripleChecker+Valid, 1436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:21:31,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 970 Invalid, 1757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [321 Valid, 1436 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2023-11-21 22:21:31,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2023-11-21 22:21:31,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 283. [2023-11-21 22:21:31,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 164 states have (on average 1.225609756097561) internal successors, (201), 167 states have internal predecessors, (201), 86 states have call successors, (86), 30 states have call predecessors, (86), 32 states have return successors, (89), 85 states have call predecessors, (89), 84 states have call successors, (89) [2023-11-21 22:21:31,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 376 transitions. [2023-11-21 22:21:31,321 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 376 transitions. Word has length 93 [2023-11-21 22:21:31,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:21:31,323 INFO L495 AbstractCegarLoop]: Abstraction has 283 states and 376 transitions. [2023-11-21 22:21:31,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 4.555555555555555) internal successors, (41), 7 states have internal predecessors, (41), 4 states have call successors, (23), 5 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2023-11-21 22:21:31,324 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 376 transitions. [2023-11-21 22:21:31,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-21 22:21:31,332 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:21:31,332 INFO L195 NwaCegarLoop]: trace histogram [9, 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] [2023-11-21 22:21:31,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:21:31,335 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:21:31,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:31,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1430066931, now seen corresponding path program 1 times [2023-11-21 22:21:31,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:31,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707125879] [2023-11-21 22:21:31,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:31,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:31,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:33,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:21:33,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:33,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:21:33,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:33,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-21 22:21:33,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:33,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-21 22:21:33,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:33,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-21 22:21:33,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:33,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:21:33,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:33,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:21:33,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:33,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:21:33,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:33,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-21 22:21:33,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:33,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-21 22:21:33,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:33,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:21:33,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:33,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-21 22:21:33,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:33,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-21 22:21:33,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:33,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-21 22:21:33,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:33,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-21 22:21:33,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:33,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-21 22:21:33,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:33,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-21 22:21:33,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:33,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-21 22:21:33,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:33,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-21 22:21:33,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:33,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-21 22:21:33,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:33,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-21 22:21:33,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:33,786 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-11-21 22:21:33,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:33,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707125879] [2023-11-21 22:21:33,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707125879] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:21:33,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1622167679] [2023-11-21 22:21:33,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:33,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:21:33,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5e3310-4e3e-42d2-be38-3a39a918c648/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:21:33,791 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5e3310-4e3e-42d2-be38-3a39a918c648/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:21:33,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5e3310-4e3e-42d2-be38-3a39a918c648/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-21 22:21:34,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:34,623 INFO L262 TraceCheckSpWp]: Trace formula consists of 2513 conjuncts, 41 conjunts are in the unsatisfiable core [2023-11-21 22:21:34,631 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:21:34,852 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 49 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-21 22:21:34,852 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:21:35,143 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-11-21 22:21:35,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1622167679] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-21 22:21:35,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:21:35,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11, 8] total 20 [2023-11-21 22:21:35,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717814085] [2023-11-21 22:21:35,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:35,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:21:35,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:35,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:21:35,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=338, Unknown=0, NotChecked=0, Total=380 [2023-11-21 22:21:35,147 INFO L87 Difference]: Start difference. First operand 283 states and 376 transitions. Second operand has 5 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-21 22:21:37,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:21:37,445 INFO L93 Difference]: Finished difference Result 289 states and 381 transitions. [2023-11-21 22:21:37,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:21:37,446 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 99 [2023-11-21 22:21:37,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:21:37,450 INFO L225 Difference]: With dead ends: 289 [2023-11-21 22:21:37,450 INFO L226 Difference]: Without dead ends: 287 [2023-11-21 22:21:37,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=374, Unknown=0, NotChecked=0, Total=420 [2023-11-21 22:21:37,452 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 6 mSDsluCounter, 940 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1259 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:21:37,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1259 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-21 22:21:37,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2023-11-21 22:21:37,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 287. [2023-11-21 22:21:37,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 167 states have (on average 1.221556886227545) internal successors, (204), 170 states have internal predecessors, (204), 86 states have call successors, (86), 31 states have call predecessors, (86), 33 states have return successors, (89), 85 states have call predecessors, (89), 84 states have call successors, (89) [2023-11-21 22:21:37,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 379 transitions. [2023-11-21 22:21:37,487 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 379 transitions. Word has length 99 [2023-11-21 22:21:37,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:21:37,488 INFO L495 AbstractCegarLoop]: Abstraction has 287 states and 379 transitions. [2023-11-21 22:21:37,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-21 22:21:37,489 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 379 transitions. [2023-11-21 22:21:37,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-21 22:21:37,491 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:21:37,491 INFO L195 NwaCegarLoop]: trace histogram [9, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:37,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5e3310-4e3e-42d2-be38-3a39a918c648/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-21 22:21:37,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5e3310-4e3e-42d2-be38-3a39a918c648/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-21 22:21:37,718 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:21:37,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:37,718 INFO L85 PathProgramCache]: Analyzing trace with hash -487588833, now seen corresponding path program 1 times [2023-11-21 22:21:37,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:37,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673708015] [2023-11-21 22:21:37,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:37,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:37,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:39,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:21:39,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:39,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:21:39,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:39,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-21 22:21:39,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:39,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-21 22:21:39,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:39,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-21 22:21:39,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:39,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:21:39,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:39,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:21:39,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:39,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:21:39,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:39,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-21 22:21:39,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:39,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-21 22:21:39,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:39,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:21:39,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:39,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-21 22:21:39,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:39,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-21 22:21:39,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:39,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-21 22:21:39,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:39,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-21 22:21:39,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:39,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-21 22:21:39,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:39,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-21 22:21:39,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:39,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-21 22:21:39,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:39,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-21 22:21:39,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:39,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-21 22:21:39,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:39,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-21 22:21:39,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:39,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-21 22:21:39,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:39,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-21 22:21:39,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:39,670 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-11-21 22:21:39,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:39,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673708015] [2023-11-21 22:21:39,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673708015] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:21:39,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [234002191] [2023-11-21 22:21:39,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:39,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:21:39,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5e3310-4e3e-42d2-be38-3a39a918c648/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:21:39,673 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5e3310-4e3e-42d2-be38-3a39a918c648/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:21:39,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5e3310-4e3e-42d2-be38-3a39a918c648/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-21 22:21:40,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:40,440 INFO L262 TraceCheckSpWp]: Trace formula consists of 2541 conjuncts, 41 conjunts are in the unsatisfiable core [2023-11-21 22:21:40,446 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:21:40,566 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-21 22:21:40,566 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:21:40,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [234002191] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:40,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:21:40,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2023-11-21 22:21:40,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124457653] [2023-11-21 22:21:40,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:40,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-21 22:21:40,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:40,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 22:21:40,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2023-11-21 22:21:40,570 INFO L87 Difference]: Start difference. First operand 287 states and 379 transitions. Second operand has 8 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (26), 2 states have call predecessors, (26), 5 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2023-11-21 22:21:44,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:21:44,480 INFO L93 Difference]: Finished difference Result 561 states and 744 transitions. [2023-11-21 22:21:44,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-21 22:21:44,481 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (26), 2 states have call predecessors, (26), 5 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) Word has length 108 [2023-11-21 22:21:44,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:21:44,485 INFO L225 Difference]: With dead ends: 561 [2023-11-21 22:21:44,485 INFO L226 Difference]: Without dead ends: 292 [2023-11-21 22:21:44,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2023-11-21 22:21:44,488 INFO L413 NwaCegarLoop]: 301 mSDtfsCounter, 1 mSDsluCounter, 1781 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2082 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-11-21 22:21:44,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2082 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-11-21 22:21:44,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2023-11-21 22:21:44,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 290. [2023-11-21 22:21:44,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 169 states have (on average 1.2189349112426036) internal successors, (206), 172 states have internal predecessors, (206), 86 states have call successors, (86), 31 states have call predecessors, (86), 34 states have return successors, (96), 86 states have call predecessors, (96), 84 states have call successors, (96) [2023-11-21 22:21:44,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 388 transitions. [2023-11-21 22:21:44,522 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 388 transitions. Word has length 108 [2023-11-21 22:21:44,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:21:44,523 INFO L495 AbstractCegarLoop]: Abstraction has 290 states and 388 transitions. [2023-11-21 22:21:44,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (26), 2 states have call predecessors, (26), 5 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2023-11-21 22:21:44,523 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 388 transitions. [2023-11-21 22:21:44,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-21 22:21:44,525 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:21:44,525 INFO L195 NwaCegarLoop]: trace histogram [9, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:44,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5e3310-4e3e-42d2-be38-3a39a918c648/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-21 22:21:44,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5e3310-4e3e-42d2-be38-3a39a918c648/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:21:44,751 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:21:44,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:44,751 INFO L85 PathProgramCache]: Analyzing trace with hash -2101988148, now seen corresponding path program 1 times [2023-11-21 22:21:44,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:44,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837360109] [2023-11-21 22:21:44,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:44,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:45,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:45,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:21:45,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:45,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:21:45,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:45,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-21 22:21:45,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:45,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-21 22:21:45,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:45,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-21 22:21:45,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:45,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:21:45,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:45,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:21:45,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:45,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:21:45,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:45,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-21 22:21:45,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:45,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-21 22:21:45,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:45,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:21:45,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:45,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-21 22:21:45,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:45,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-21 22:21:45,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:45,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-21 22:21:45,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:45,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-21 22:21:45,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:45,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-21 22:21:45,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:45,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-21 22:21:45,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:46,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-21 22:21:46,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:46,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-21 22:21:46,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:46,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-21 22:21:46,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:46,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-21 22:21:46,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:46,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-21 22:21:46,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:46,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-21 22:21:46,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:46,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-21 22:21:46,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:46,162 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-11-21 22:21:46,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:46,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837360109] [2023-11-21 22:21:46,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837360109] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:46,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:46,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-21 22:21:46,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155801329] [2023-11-21 22:21:46,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:46,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-21 22:21:46,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:46,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 22:21:46,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:21:46,166 INFO L87 Difference]: Start difference. First operand 290 states and 388 transitions. Second operand has 8 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 3 states have call successors, (27), 5 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-11-21 22:21:48,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers []