./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_893bc25b-c94c-4ac6-a234-007ea3150bf1/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_893bc25b-c94c-4ac6-a234-007ea3150bf1/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_893bc25b-c94c-4ac6-a234-007ea3150bf1/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_893bc25b-c94c-4ac6-a234-007ea3150bf1/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_893bc25b-c94c-4ac6-a234-007ea3150bf1/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_893bc25b-c94c-4ac6-a234-007ea3150bf1/bin/uautomizer-verify-uTZkv6EMXl --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 376d17ae01be1a0e4efb367d6292ac1fddb60cf0b492e28519b7a613615b5260 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:27:11,135 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:27:11,209 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_893bc25b-c94c-4ac6-a234-007ea3150bf1/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-12 02:27:11,215 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:27:11,215 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:27:11,241 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:27:11,241 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:27:11,242 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:27:11,243 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:27:11,244 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:27:11,244 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:27:11,245 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:27:11,246 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:27:11,246 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:27:11,247 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:27:11,248 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:27:11,248 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:27:11,249 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:27:11,249 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:27:11,250 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:27:11,251 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:27:11,251 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:27:11,252 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:27:11,253 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:27:11,253 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:27:11,254 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:27:11,255 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:27:11,255 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:27:11,256 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:27:11,256 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:27:11,257 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:27:11,258 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:27:11,258 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:27:11,259 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:27:11,259 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:27:11,260 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:27:11,260 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_893bc25b-c94c-4ac6-a234-007ea3150bf1/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_893bc25b-c94c-4ac6-a234-007ea3150bf1/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 376d17ae01be1a0e4efb367d6292ac1fddb60cf0b492e28519b7a613615b5260 [2023-11-12 02:27:11,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:27:11,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:27:11,543 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:27:11,544 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:27:11,545 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:27:11,547 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_893bc25b-c94c-4ac6-a234-007ea3150bf1/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness_negated.i [2023-11-12 02:27:14,669 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:27:15,276 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:27:15,278 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_893bc25b-c94c-4ac6-a234-007ea3150bf1/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness_negated.i [2023-11-12 02:27:15,333 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_893bc25b-c94c-4ac6-a234-007ea3150bf1/bin/uautomizer-verify-uTZkv6EMXl/data/1544dda39/ce0f80c8a2374cbf9cd87d5ec1727b7d/FLAG8887c7814 [2023-11-12 02:27:15,350 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_893bc25b-c94c-4ac6-a234-007ea3150bf1/bin/uautomizer-verify-uTZkv6EMXl/data/1544dda39/ce0f80c8a2374cbf9cd87d5ec1727b7d [2023-11-12 02:27:15,356 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:27:15,359 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:27:15,363 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:27:15,364 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:27:15,369 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:27:15,372 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:27:15" (1/1) ... [2023-11-12 02:27:15,373 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@655d09aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:15, skipping insertion in model container [2023-11-12 02:27:15,373 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:27:15" (1/1) ... [2023-11-12 02:27:15,507 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:27:15,858 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_893bc25b-c94c-4ac6-a234-007ea3150bf1/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness_negated.i[4493,4506] [2023-11-12 02:27:15,868 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_893bc25b-c94c-4ac6-a234-007ea3150bf1/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness_negated.i[4553,4566] [2023-11-12 02:27:17,125 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:17,126 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:17,127 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:17,128 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:17,129 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:17,147 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:17,147 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:17,150 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:17,151 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:17,153 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:17,155 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:17,156 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:17,156 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:17,713 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 02:27:17,714 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 02:27:17,718 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 02:27:17,721 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 02:27:17,725 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 02:27:17,727 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 02:27:17,728 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 02:27:17,731 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 02:27:17,732 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 02:27:17,733 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 02:27:18,346 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:18,346 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:18,370 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:18,371 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:18,378 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:18,378 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:18,392 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:18,396 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:18,397 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:18,398 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:18,398 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:18,399 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:18,400 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:18,457 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:27:18,523 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:27:18,547 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_893bc25b-c94c-4ac6-a234-007ea3150bf1/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness_negated.i[4493,4506] [2023-11-12 02:27:18,548 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_893bc25b-c94c-4ac6-a234-007ea3150bf1/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness_negated.i[4553,4566] [2023-11-12 02:27:18,607 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:18,608 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:18,608 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:18,609 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:18,609 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:18,619 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:18,620 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:18,623 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:18,623 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:18,625 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:18,625 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:18,626 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:18,626 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:18,729 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 02:27:18,730 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 02:27:18,730 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 02:27:18,732 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 02:27:18,733 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 02:27:18,734 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 02:27:18,735 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 02:27:18,736 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 02:27:18,737 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 02:27:18,737 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 02:27:18,776 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7526-7537] [2023-11-12 02:27:18,867 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:18,867 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:18,876 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:18,877 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:18,881 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:18,882 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:18,896 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:18,898 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:18,898 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:18,899 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:18,899 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:18,899 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:18,900 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:27:18,925 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:27:19,315 WARN L672 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:27:19,315 WARN L672 CHandler]: The function equals_fn is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:27:19,316 WARN L672 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:27:19,316 WARN L672 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:27:19,316 WARN L672 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:27:19,316 WARN L672 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:27:19,316 WARN L672 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:27:19,316 WARN L672 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:27:19,317 WARN L672 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:27:19,317 WARN L672 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:27:19,317 WARN L672 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:27:19,317 WARN L672 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:27:19,317 WARN L672 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:27:19,317 WARN L672 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:27:19,318 WARN L672 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:27:19,318 WARN L672 CHandler]: The function callback is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:27:19,318 WARN L672 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:27:19,318 WARN L672 CHandler]: The function aws_array_list_ensure_capacity is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:27:19,326 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:27:19,326 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:19 WrapperNode [2023-11-12 02:27:19,327 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:27:19,328 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:27:19,328 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:27:19,328 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:27:19,336 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:19" (1/1) ... [2023-11-12 02:27:19,522 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:19" (1/1) ... [2023-11-12 02:27:19,628 INFO L138 Inliner]: procedures = 772, calls = 2433, calls flagged for inlining = 69, calls inlined = 12, statements flattened = 621 [2023-11-12 02:27:19,631 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:27:19,632 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:27:19,632 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:27:19,632 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:27:19,642 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:19" (1/1) ... [2023-11-12 02:27:19,643 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:19" (1/1) ... [2023-11-12 02:27:19,658 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:19" (1/1) ... [2023-11-12 02:27:19,658 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:19" (1/1) ... [2023-11-12 02:27:19,714 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:19" (1/1) ... [2023-11-12 02:27:19,723 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:19" (1/1) ... [2023-11-12 02:27:19,742 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:19" (1/1) ... [2023-11-12 02:27:19,747 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:19" (1/1) ... [2023-11-12 02:27:19,760 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:27:19,761 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:27:19,762 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:27:19,762 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:27:19,763 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:19" (1/1) ... [2023-11-12 02:27:19,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:27:19,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_893bc25b-c94c-4ac6-a234-007ea3150bf1/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:27:19,794 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_893bc25b-c94c-4ac6-a234-007ea3150bf1/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:27:19,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_893bc25b-c94c-4ac6-a234-007ea3150bf1/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:27:19,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-12 02:27:19,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:27:19,844 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-12 02:27:19,844 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-12 02:27:19,845 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 02:27:19,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 02:27:19,845 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2023-11-12 02:27:19,845 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2023-11-12 02:27:19,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:27:19,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:27:19,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:27:19,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:27:19,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:27:19,847 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-12 02:27:19,847 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-12 02:27:19,848 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-12 02:27:19,848 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-12 02:27:19,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-12 02:27:19,848 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-12 02:27:19,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:27:19,848 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2023-11-12 02:27:19,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2023-11-12 02:27:19,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:27:19,850 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-12 02:27:19,850 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-12 02:27:19,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:27:19,851 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2023-11-12 02:27:19,851 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2023-11-12 02:27:19,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:27:19,851 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2023-11-12 02:27:19,851 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2023-11-12 02:27:19,851 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 02:27:19,852 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 02:27:19,852 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2023-11-12 02:27:19,852 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2023-11-12 02:27:19,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 02:27:19,852 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-12 02:27:19,852 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-12 02:27:19,852 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2023-11-12 02:27:19,853 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2023-11-12 02:27:19,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:27:20,245 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:27:20,248 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:27:21,352 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:27:21,359 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:27:21,360 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 02:27:21,362 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:27:21 BoogieIcfgContainer [2023-11-12 02:27:21,362 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:27:21,383 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:27:21,384 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:27:21,388 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:27:21,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:27:15" (1/3) ... [2023-11-12 02:27:21,389 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37dc9371 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:27:21, skipping insertion in model container [2023-11-12 02:27:21,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:19" (2/3) ... [2023-11-12 02:27:21,391 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37dc9371 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:27:21, skipping insertion in model container [2023-11-12 02:27:21,391 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:27:21" (3/3) ... [2023-11-12 02:27:21,393 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_hash_table_move_harness_negated.i [2023-11-12 02:27:21,413 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:27:21,413 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:27:21,487 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:27:21,500 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;@43a68c55, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:27:21,502 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:27:21,509 INFO L276 IsEmpty]: Start isEmpty. Operand has 131 states, 84 states have (on average 1.1904761904761905) internal successors, (100), 84 states have internal predecessors, (100), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-12 02:27:21,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-11-12 02:27:21,535 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:27:21,536 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:21,536 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:27:21,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:21,545 INFO L85 PathProgramCache]: Analyzing trace with hash 138542764, now seen corresponding path program 1 times [2023-11-12 02:27:21,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:21,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008038862] [2023-11-12 02:27:21,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:21,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:22,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:22,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:27:22,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008038862] [2023-11-12 02:27:22,177 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-12 02:27:22,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1941568739] [2023-11-12 02:27:22,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:22,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:27:22,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_893bc25b-c94c-4ac6-a234-007ea3150bf1/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:27:22,182 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_893bc25b-c94c-4ac6-a234-007ea3150bf1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:27:22,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_893bc25b-c94c-4ac6-a234-007ea3150bf1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:27:22,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:22,905 INFO L262 TraceCheckSpWp]: Trace formula consists of 2414 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 02:27:22,923 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:27:22,994 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2023-11-12 02:27:22,996 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:27:22,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1941568739] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:27:22,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:27:22,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:27:22,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079360206] [2023-11-12 02:27:23,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:27:23,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:27:23,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:27:23,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:27:23,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:27:23,059 INFO L87 Difference]: Start difference. First operand has 131 states, 84 states have (on average 1.1904761904761905) internal successors, (100), 84 states have internal predecessors, (100), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-12 02:27:23,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:27:23,133 INFO L93 Difference]: Finished difference Result 254 states and 341 transitions. [2023-11-12 02:27:23,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:27:23,135 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 141 [2023-11-12 02:27:23,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:27:23,160 INFO L225 Difference]: With dead ends: 254 [2023-11-12 02:27:23,166 INFO L226 Difference]: Without dead ends: 125 [2023-11-12 02:27:23,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:27:23,176 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:27:23,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:27:23,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2023-11-12 02:27:23,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2023-11-12 02:27:23,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 78 states have (on average 1.1538461538461537) internal successors, (90), 79 states have internal predecessors, (90), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-12 02:27:23,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 153 transitions. [2023-11-12 02:27:23,234 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 153 transitions. Word has length 141 [2023-11-12 02:27:23,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:27:23,235 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 153 transitions. [2023-11-12 02:27:23,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-12 02:27:23,235 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 153 transitions. [2023-11-12 02:27:23,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-12 02:27:23,240 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:27:23,240 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:23,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_893bc25b-c94c-4ac6-a234-007ea3150bf1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:27:23,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_893bc25b-c94c-4ac6-a234-007ea3150bf1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-12 02:27:23,450 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:27:23,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:23,450 INFO L85 PathProgramCache]: Analyzing trace with hash -798841125, now seen corresponding path program 1 times [2023-11-12 02:27:23,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:23,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054851604] [2023-11-12 02:27:23,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:23,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:23,583 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:27:23,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2131435302] [2023-11-12 02:27:23,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:23,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:27:23,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_893bc25b-c94c-4ac6-a234-007ea3150bf1/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:27:23,585 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_893bc25b-c94c-4ac6-a234-007ea3150bf1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:27:23,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_893bc25b-c94c-4ac6-a234-007ea3150bf1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:27:24,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:24,289 INFO L262 TraceCheckSpWp]: Trace formula consists of 2442 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-12 02:27:24,304 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:27:24,373 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2023-11-12 02:27:24,373 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:27:24,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:27:24,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054851604] [2023-11-12 02:27:24,374 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:27:24,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2131435302] [2023-11-12 02:27:24,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2131435302] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:27:24,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:27:24,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:27:24,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286351793] [2023-11-12 02:27:24,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:27:24,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:27:24,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:27:24,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:27:24,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:27:24,379 INFO L87 Difference]: Start difference. First operand 125 states and 153 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-12 02:27:24,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:27:24,446 INFO L93 Difference]: Finished difference Result 243 states and 298 transitions. [2023-11-12 02:27:24,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:27:24,447 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) Word has length 147 [2023-11-12 02:27:24,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:27:24,450 INFO L225 Difference]: With dead ends: 243 [2023-11-12 02:27:24,450 INFO L226 Difference]: Without dead ends: 130 [2023-11-12 02:27:24,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:27:24,453 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 2 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:27:24,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 596 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:27:24,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2023-11-12 02:27:24,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2023-11-12 02:27:24,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 82 states have (on average 1.146341463414634) internal successors, (94), 83 states have internal predecessors, (94), 32 states have call successors, (32), 14 states have call predecessors, (32), 15 states have return successors, (32), 32 states have call predecessors, (32), 31 states have call successors, (32) [2023-11-12 02:27:24,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 158 transitions. [2023-11-12 02:27:24,472 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 158 transitions. Word has length 147 [2023-11-12 02:27:24,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:27:24,474 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 158 transitions. [2023-11-12 02:27:24,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-12 02:27:24,474 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 158 transitions. [2023-11-12 02:27:24,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-11-12 02:27:24,478 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:27:24,478 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:24,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_893bc25b-c94c-4ac6-a234-007ea3150bf1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:27:24,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_893bc25b-c94c-4ac6-a234-007ea3150bf1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:27:24,688 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:27:24,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:24,689 INFO L85 PathProgramCache]: Analyzing trace with hash -441640933, now seen corresponding path program 1 times [2023-11-12 02:27:24,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:24,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157160725] [2023-11-12 02:27:24,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:24,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:24,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:26,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:27:26,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:26,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-12 02:27:26,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:26,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:27:26,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:26,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:27:26,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:26,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-12 02:27:26,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:26,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:27:26,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:26,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:27:26,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:26,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:27:26,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:26,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-12 02:27:26,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:26,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-12 02:27:26,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:27,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:27:27,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:27,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-12 02:27:27,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:27,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-12 02:27:27,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:27,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-12 02:27:27,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:27,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:27:27,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:27,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:27:27,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:27,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:27:27,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:27,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-12 02:27:27,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:27,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-12 02:27:27,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:27,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-12 02:27:27,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:27,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-12 02:27:27,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:27,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-12 02:27:27,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:27,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-11-12 02:27:27,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:27,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-12 02:27:27,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:27,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-12 02:27:27,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:27,490 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-11-12 02:27:27,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:27:27,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157160725] [2023-11-12 02:27:27,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157160725] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:27:27,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2146370320] [2023-11-12 02:27:27,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:27,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:27:27,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_893bc25b-c94c-4ac6-a234-007ea3150bf1/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:27:27,493 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_893bc25b-c94c-4ac6-a234-007ea3150bf1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:27:27,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_893bc25b-c94c-4ac6-a234-007ea3150bf1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 02:27:28,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:28,080 INFO L262 TraceCheckSpWp]: Trace formula consists of 2450 conjuncts, 36 conjunts are in the unsatisfiable core [2023-11-12 02:27:28,091 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:27:28,320 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-12 02:27:28,718 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-11-12 02:27:28,719 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:27:28,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2146370320] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:27:28,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:27:28,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [14] total 22 [2023-11-12 02:27:28,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871837031] [2023-11-12 02:27:28,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:27:28,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 02:27:28,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:27:28,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 02:27:28,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2023-11-12 02:27:28,723 INFO L87 Difference]: Start difference. First operand 130 states and 158 transitions. Second operand has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 9 states have internal predecessors, (78), 4 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2023-11-12 02:27:31,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-12 02:27:33,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-12 02:27:35,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-12 02:27:37,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-12 02:27:39,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-12 02:27:42,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-12 02:27:44,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-12 02:27:46,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-12 02:27:48,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-12 02:27:48,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:27:48,197 INFO L93 Difference]: Finished difference Result 314 states and 382 transitions. [2023-11-12 02:27:48,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-12 02:27:48,199 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 9 states have internal predecessors, (78), 4 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 159 [2023-11-12 02:27:48,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:27:48,205 INFO L225 Difference]: With dead ends: 314 [2023-11-12 02:27:48,205 INFO L226 Difference]: Without dead ends: 208 [2023-11-12 02:27:48,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=129, Invalid=741, Unknown=0, NotChecked=0, Total=870 [2023-11-12 02:27:48,208 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 122 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 18 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:27:48,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 1002 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 366 Invalid, 9 Unknown, 0 Unchecked, 19.2s Time] [2023-11-12 02:27:48,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2023-11-12 02:27:48,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 202. [2023-11-12 02:27:48,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 130 states have (on average 1.1615384615384616) internal successors, (151), 133 states have internal predecessors, (151), 46 states have call successors, (46), 22 states have call predecessors, (46), 25 states have return successors, (50), 46 states have call predecessors, (50), 45 states have call successors, (50) [2023-11-12 02:27:48,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 247 transitions. [2023-11-12 02:27:48,279 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 247 transitions. Word has length 159 [2023-11-12 02:27:48,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:27:48,281 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 247 transitions. [2023-11-12 02:27:48,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 9 states have internal predecessors, (78), 4 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2023-11-12 02:27:48,282 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 247 transitions. [2023-11-12 02:27:48,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-11-12 02:27:48,285 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:27:48,286 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:48,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_893bc25b-c94c-4ac6-a234-007ea3150bf1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:27:48,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_893bc25b-c94c-4ac6-a234-007ea3150bf1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:27:48,489 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:27:48,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:48,490 INFO L85 PathProgramCache]: Analyzing trace with hash -470141223, now seen corresponding path program 1 times [2023-11-12 02:27:48,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:48,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587773921] [2023-11-12 02:27:48,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:48,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:48,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:49,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:27:49,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:49,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-12 02:27:49,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:49,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:27:49,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:49,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:27:49,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:49,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-12 02:27:49,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:49,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:27:49,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:49,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:27:49,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:49,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:27:49,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:49,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-12 02:27:49,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:49,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-12 02:27:49,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:49,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:27:49,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:49,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-12 02:27:49,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:49,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-12 02:27:49,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:49,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-12 02:27:49,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:49,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:27:49,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:49,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:27:49,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:49,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:27:49,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:49,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-12 02:27:49,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:49,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-12 02:27:49,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:49,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-12 02:27:49,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:49,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-12 02:27:49,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:49,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-12 02:27:49,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:49,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-11-12 02:27:49,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:49,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-12 02:27:49,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:49,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-12 02:27:49,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:49,625 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-11-12 02:27:49,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:27:49,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587773921] [2023-11-12 02:27:49,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587773921] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:27:49,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348799168] [2023-11-12 02:27:49,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:49,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:27:49,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_893bc25b-c94c-4ac6-a234-007ea3150bf1/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:27:49,629 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_893bc25b-c94c-4ac6-a234-007ea3150bf1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:27:49,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_893bc25b-c94c-4ac6-a234-007ea3150bf1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 02:27:50,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:50,219 INFO L262 TraceCheckSpWp]: Trace formula consists of 2445 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 02:27:50,224 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:27:50,361 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-11-12 02:27:50,362 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:27:50,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348799168] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:27:50,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:27:50,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2023-11-12 02:27:50,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726269922] [2023-11-12 02:27:50,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:27:50,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:27:50,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:27:50,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:27:50,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-11-12 02:27:50,365 INFO L87 Difference]: Start difference. First operand 202 states and 247 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2023-11-12 02:27:50,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:27:50,607 INFO L93 Difference]: Finished difference Result 383 states and 469 transitions. [2023-11-12 02:27:50,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:27:50,608 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 159 [2023-11-12 02:27:50,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:27:50,612 INFO L225 Difference]: With dead ends: 383 [2023-11-12 02:27:50,612 INFO L226 Difference]: Without dead ends: 214 [2023-11-12 02:27:50,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2023-11-12 02:27:50,614 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 150 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:27:50,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 349 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:27:50,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2023-11-12 02:27:50,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 204. [2023-11-12 02:27:50,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 131 states have (on average 1.1603053435114503) internal successors, (152), 134 states have internal predecessors, (152), 47 states have call successors, (47), 22 states have call predecessors, (47), 25 states have return successors, (51), 47 states have call predecessors, (51), 46 states have call successors, (51) [2023-11-12 02:27:50,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 250 transitions. [2023-11-12 02:27:50,646 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 250 transitions. Word has length 159 [2023-11-12 02:27:50,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:27:50,647 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 250 transitions. [2023-11-12 02:27:50,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2023-11-12 02:27:50,648 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 250 transitions. [2023-11-12 02:27:50,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-11-12 02:27:50,651 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:27:50,651 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:50,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_893bc25b-c94c-4ac6-a234-007ea3150bf1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-12 02:27:50,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_893bc25b-c94c-4ac6-a234-007ea3150bf1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:27:50,861 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:27:50,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:50,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1619077640, now seen corresponding path program 1 times [2023-11-12 02:27:50,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:50,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554243211] [2023-11-12 02:27:50,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:50,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:50,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:51,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:27:51,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:51,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-12 02:27:51,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:51,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:27:51,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:51,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:27:51,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:51,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-12 02:27:51,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:51,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:27:51,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:51,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:27:51,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:51,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:27:51,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:51,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-12 02:27:51,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:51,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-12 02:27:51,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:51,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:27:51,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:51,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-12 02:27:51,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:51,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-12 02:27:51,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:52,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-12 02:27:52,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:52,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-12 02:27:52,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:52,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:27:52,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:52,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:27:52,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:52,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:27:52,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:52,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-12 02:27:52,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:52,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-12 02:27:52,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:52,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-12 02:27:52,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:52,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-12 02:27:52,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:52,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-12 02:27:52,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:52,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-12 02:27:52,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:52,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-11-12 02:27:52,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:52,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-11-12 02:27:52,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:52,237 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2023-11-12 02:27:52,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:27:52,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554243211] [2023-11-12 02:27:52,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554243211] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:27:52,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2064645141] [2023-11-12 02:27:52,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:52,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:27:52,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_893bc25b-c94c-4ac6-a234-007ea3150bf1/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:27:52,241 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_893bc25b-c94c-4ac6-a234-007ea3150bf1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:27:52,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_893bc25b-c94c-4ac6-a234-007ea3150bf1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-12 02:27:52,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:52,857 INFO L262 TraceCheckSpWp]: Trace formula consists of 2474 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-12 02:27:52,863 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:27:55,076 WARN L876 $PredicateComparison]: unable to prove that (or (exists ((aws_hash_table_is_valid_~map.base Int) (aws_hash_table_is_valid_~map.offset Int)) (not (= 0 (select (select |c_#memory_$Pointer$.offset| aws_hash_table_is_valid_~map.base) aws_hash_table_is_valid_~map.offset)))) (exists ((aws_hash_table_is_valid_~map.base Int) (aws_hash_table_is_valid_~map.offset Int)) (not (= (select (select |c_#memory_$Pointer$.base| aws_hash_table_is_valid_~map.base) aws_hash_table_is_valid_~map.offset) 0)))) is different from true [2023-11-12 02:27:59,230 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2023-11-12 02:27:59,231 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:27:59,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2064645141] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:27:59,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:27:59,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2023-11-12 02:27:59,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188987889] [2023-11-12 02:27:59,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:27:59,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 02:27:59,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:27:59,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 02:27:59,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=202, Unknown=3, NotChecked=28, Total=272 [2023-11-12 02:27:59,234 INFO L87 Difference]: Start difference. First operand 204 states and 250 transitions. Second operand has 8 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2023-11-12 02:28:01,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-12 02:28:03,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-12 02:28:03,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:28:03,650 INFO L93 Difference]: Finished difference Result 398 states and 489 transitions. [2023-11-12 02:28:03,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:28:03,650 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) Word has length 165 [2023-11-12 02:28:03,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:28:03,653 INFO L225 Difference]: With dead ends: 398 [2023-11-12 02:28:03,653 INFO L226 Difference]: Without dead ends: 223 [2023-11-12 02:28:03,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=67, Invalid=314, Unknown=3, NotChecked=36, Total=420 [2023-11-12 02:28:03,656 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 12 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 172 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:28:03,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 810 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 120 Invalid, 1 Unknown, 172 Unchecked, 4.2s Time] [2023-11-12 02:28:03,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2023-11-12 02:28:03,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 219. [2023-11-12 02:28:03,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 141 states have (on average 1.1560283687943262) internal successors, (163), 145 states have internal predecessors, (163), 50 states have call successors, (50), 24 states have call predecessors, (50), 27 states have return successors, (54), 49 states have call predecessors, (54), 49 states have call successors, (54) [2023-11-12 02:28:03,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 267 transitions. [2023-11-12 02:28:03,702 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 267 transitions. Word has length 165 [2023-11-12 02:28:03,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:28:03,703 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 267 transitions. [2023-11-12 02:28:03,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2023-11-12 02:28:03,703 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 267 transitions. [2023-11-12 02:28:03,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-11-12 02:28:03,706 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:28:03,707 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-12 02:28:03,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_893bc25b-c94c-4ac6-a234-007ea3150bf1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-12 02:28:03,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_893bc25b-c94c-4ac6-a234-007ea3150bf1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:28:03,917 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:28:03,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:03,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1002851802, now seen corresponding path program 1 times [2023-11-12 02:28:03,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:03,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258536161] [2023-11-12 02:28:03,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:03,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:04,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:05,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:28:05,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:05,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-12 02:28:05,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:05,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:28:05,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:05,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:28:05,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:05,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-12 02:28:05,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:05,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:05,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:05,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:05,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:06,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:28:06,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:06,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-12 02:28:06,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:06,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-12 02:28:06,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:06,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:06,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:06,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-12 02:28:06,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:06,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-12 02:28:06,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:06,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:28:06,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:06,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-12 02:28:06,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:06,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-12 02:28:06,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:06,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:06,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:06,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:06,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:06,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:28:06,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:06,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-12 02:28:06,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:06,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-12 02:28:06,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:06,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-12 02:28:06,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:06,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-11-12 02:28:06,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:06,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-12 02:28:06,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:06,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-12 02:28:06,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:06,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-11-12 02:28:06,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:06,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-11-12 02:28:06,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:06,681 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2023-11-12 02:28:06,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:28:06,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258536161] [2023-11-12 02:28:06,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258536161] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:28:06,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1263146296] [2023-11-12 02:28:06,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:06,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:28:06,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_893bc25b-c94c-4ac6-a234-007ea3150bf1/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:28:06,685 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_893bc25b-c94c-4ac6-a234-007ea3150bf1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:28:06,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_893bc25b-c94c-4ac6-a234-007ea3150bf1/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-12 02:28:07,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:07,308 INFO L262 TraceCheckSpWp]: Trace formula consists of 2506 conjuncts, 60 conjunts are in the unsatisfiable core [2023-11-12 02:28:07,320 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:28:07,516 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-12 02:28:08,672 INFO L322 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-11-12 02:28:08,672 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 19