./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 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4cd2652-d530-436d-9c11-b1448a54cff3/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4cd2652-d530-436d-9c11-b1448a54cff3/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4cd2652-d530-436d-9c11-b1448a54cff3/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4cd2652-d530-436d-9c11-b1448a54cff3/bin/uautomizer-verify-VRDe98Ueme/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_a4cd2652-d530-436d-9c11-b1448a54cff3/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4cd2652-d530-436d-9c11-b1448a54cff3/bin/uautomizer-verify-VRDe98Ueme --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 0.2.4-dev-0e0057c [2023-11-26 11:49:41,751 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:49:41,869 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4cd2652-d530-436d-9c11-b1448a54cff3/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-26 11:49:41,883 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:49:41,884 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:49:41,906 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:49:41,907 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:49:41,908 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:49:41,909 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:49:41,909 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:49:41,910 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:49:41,911 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:49:41,911 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:49:41,912 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:49:41,913 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:49:41,913 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:49:41,914 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:49:41,914 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:49:41,915 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:49:41,915 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:49:41,916 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:49:41,917 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:49:41,917 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:49:41,918 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:49:41,918 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:49:41,919 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:49:41,919 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:49:41,920 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:49:41,920 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:49:41,921 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:49:41,934 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:49:41,936 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:49:41,936 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:49:41,936 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:49:41,937 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:49:41,937 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:49:41,937 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:49:41,938 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:49:41,938 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:49:41,938 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_a4cd2652-d530-436d-9c11-b1448a54cff3/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4cd2652-d530-436d-9c11-b1448a54cff3/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 376d17ae01be1a0e4efb367d6292ac1fddb60cf0b492e28519b7a613615b5260 [2023-11-26 11:49:42,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:49:42,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:49:42,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:49:42,265 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:49:42,266 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:49:42,267 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4cd2652-d530-436d-9c11-b1448a54cff3/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness_negated.i [2023-11-26 11:49:45,356 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:49:46,026 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:49:46,027 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4cd2652-d530-436d-9c11-b1448a54cff3/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness_negated.i [2023-11-26 11:49:46,085 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4cd2652-d530-436d-9c11-b1448a54cff3/bin/uautomizer-verify-VRDe98Ueme/data/7139bc1cf/ac1d73d4f1304fbb82a6f68c6ad5db2d/FLAG4ad1de197 [2023-11-26 11:49:46,105 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4cd2652-d530-436d-9c11-b1448a54cff3/bin/uautomizer-verify-VRDe98Ueme/data/7139bc1cf/ac1d73d4f1304fbb82a6f68c6ad5db2d [2023-11-26 11:49:46,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:49:46,115 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:49:46,119 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:49:46,119 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:49:46,125 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:49:46,126 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:49:46" (1/1) ... [2023-11-26 11:49:46,128 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42d21334 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:46, skipping insertion in model container [2023-11-26 11:49:46,128 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:49:46" (1/1) ... [2023-11-26 11:49:46,349 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:49:46,738 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_a4cd2652-d530-436d-9c11-b1448a54cff3/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness_negated.i[4493,4506] [2023-11-26 11:49:46,751 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_a4cd2652-d530-436d-9c11-b1448a54cff3/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness_negated.i[4553,4566] [2023-11-26 11:49:48,207 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:48,212 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:48,214 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:48,218 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:48,221 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:48,245 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:48,246 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:48,249 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:48,277 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:48,279 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:48,281 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:48,281 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:48,282 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:48,848 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-26 11:49:48,850 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-26 11:49:48,851 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-26 11:49:48,853 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-26 11:49:48,854 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-26 11:49:48,855 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-26 11:49:48,856 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-26 11:49:48,857 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-26 11:49:48,858 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-26 11:49:48,859 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-26 11:49:49,566 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:49,567 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:49,608 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:49,613 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:49,620 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:49,621 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:49,644 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:49,646 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:49,646 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:49,647 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:49,648 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:49,649 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:49,650 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:49,716 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:49:49,774 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:49:49,800 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_a4cd2652-d530-436d-9c11-b1448a54cff3/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness_negated.i[4493,4506] [2023-11-26 11:49:49,801 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_a4cd2652-d530-436d-9c11-b1448a54cff3/sv-benchmarks/c/aws-c-common/aws_hash_table_move_harness_negated.i[4553,4566] [2023-11-26 11:49:49,867 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:49,867 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:49,868 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:49,869 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:49,869 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:49,880 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:49,882 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:49,883 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:49,884 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:49,885 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:49,886 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:49,886 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:49,887 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:49,928 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-26 11:49:49,929 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-26 11:49:49,930 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-26 11:49:49,931 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-26 11:49:49,932 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-26 11:49:49,933 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-26 11:49:49,934 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-26 11:49:49,935 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-26 11:49:49,935 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-26 11:49:49,936 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-26 11:49:49,990 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7526-7537] [2023-11-26 11:49:50,144 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:50,144 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:50,153 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:50,155 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:50,160 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:50,160 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:50,174 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:50,175 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:50,176 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:50,176 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:50,177 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:50,177 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:50,177 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:49:50,200 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:49:50,553 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:49:50,553 WARN L675 CHandler]: The function equals_fn is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:49:50,553 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:49:50,553 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:49:50,553 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:49:50,554 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:49:50,554 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:49:50,554 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:49:50,554 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:49:50,554 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:49:50,554 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:49:50,555 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:49:50,555 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:49:50,555 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:49:50,555 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:49:50,555 WARN L675 CHandler]: The function callback is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:49:50,555 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:49:50,555 WARN L675 CHandler]: The function aws_array_list_ensure_capacity is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:49:50,563 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:49:50,564 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:50 WrapperNode [2023-11-26 11:49:50,565 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:49:50,566 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:49:50,566 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:49:50,566 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:49:50,574 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:50" (1/1) ... [2023-11-26 11:49:50,728 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:50" (1/1) ... [2023-11-26 11:49:50,828 INFO L138 Inliner]: procedures = 772, calls = 2433, calls flagged for inlining = 69, calls inlined = 12, statements flattened = 621 [2023-11-26 11:49:50,829 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:49:50,830 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:49:50,831 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:49:50,831 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:49:50,843 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:50" (1/1) ... [2023-11-26 11:49:50,843 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:50" (1/1) ... [2023-11-26 11:49:50,865 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:50" (1/1) ... [2023-11-26 11:49:50,941 INFO L175 MemorySlicer]: Split 282 memory accesses to 9 slices as follows [2, 6, 17, 5, 236, 3, 2, 8, 3]. 84 percent of accesses are in the largest equivalence class. The 246 initializations are split as follows [2, 0, 0, 5, 236, 0, 0, 0, 3]. The 8 writes are split as follows [0, 2, 1, 0, 0, 1, 1, 3, 0]. [2023-11-26 11:49:50,941 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:50" (1/1) ... [2023-11-26 11:49:50,941 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:50" (1/1) ... [2023-11-26 11:49:50,978 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:50" (1/1) ... [2023-11-26 11:49:50,983 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:50" (1/1) ... [2023-11-26 11:49:50,995 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:50" (1/1) ... [2023-11-26 11:49:51,002 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:50" (1/1) ... [2023-11-26 11:49:51,016 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:49:51,017 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:49:51,017 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:49:51,017 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:49:51,018 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:50" (1/1) ... [2023-11-26 11:49:51,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:49:51,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4cd2652-d530-436d-9c11-b1448a54cff3/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:49:51,052 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4cd2652-d530-436d-9c11-b1448a54cff3/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:49:51,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4cd2652-d530-436d-9c11-b1448a54cff3/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:49:51,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-11-26 11:49:51,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-11-26 11:49:51,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2023-11-26 11:49:51,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2023-11-26 11:49:51,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2023-11-26 11:49:51,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2023-11-26 11:49:51,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2023-11-26 11:49:51,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2023-11-26 11:49:51,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2023-11-26 11:49:51,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 11:49:51,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 11:49:51,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-26 11:49:51,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-26 11:49:51,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-26 11:49:51,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-26 11:49:51,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-26 11:49:51,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-26 11:49:51,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-26 11:49:51,101 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-26 11:49:51,101 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-26 11:49:51,101 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-26 11:49:51,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-26 11:49:51,101 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2023-11-26 11:49:51,101 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2023-11-26 11:49:51,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 11:49:51,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:49:51,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-26 11:49:51,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-26 11:49:51,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-26 11:49:51,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-26 11:49:51,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-26 11:49:51,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-26 11:49:51,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-26 11:49:51,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-26 11:49:51,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-26 11:49:51,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:49:51,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:49:51,104 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-26 11:49:51,104 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-26 11:49:51,104 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-26 11:49:51,105 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-26 11:49:51,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-26 11:49:51,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-26 11:49:51,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-26 11:49:51,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-26 11:49:51,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2023-11-26 11:49:51,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2023-11-26 11:49:51,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2023-11-26 11:49:51,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2023-11-26 11:49:51,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2023-11-26 11:49:51,107 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-26 11:49:51,107 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-26 11:49:51,107 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-26 11:49:51,107 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-26 11:49:51,108 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2023-11-26 11:49:51,108 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2023-11-26 11:49:51,108 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2023-11-26 11:49:51,109 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2023-11-26 11:49:51,112 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2023-11-26 11:49:51,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:49:51,113 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2023-11-26 11:49:51,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2023-11-26 11:49:51,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-26 11:49:51,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-26 11:49:51,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-26 11:49:51,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-26 11:49:51,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-26 11:49:51,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-26 11:49:51,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-26 11:49:51,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-26 11:49:51,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-26 11:49:51,122 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-26 11:49:51,122 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-26 11:49:51,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 11:49:51,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 11:49:51,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 11:49:51,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 11:49:51,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-26 11:49:51,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-26 11:49:51,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-26 11:49:51,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-26 11:49:51,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-26 11:49:51,124 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2023-11-26 11:49:51,124 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2023-11-26 11:49:51,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:49:51,124 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2023-11-26 11:49:51,124 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2023-11-26 11:49:51,125 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 11:49:51,125 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 11:49:51,125 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2023-11-26 11:49:51,125 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2023-11-26 11:49:51,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-26 11:49:51,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-26 11:49:51,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-26 11:49:51,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-26 11:49:51,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-26 11:49:51,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-26 11:49:51,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-26 11:49:51,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-26 11:49:51,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-11-26 11:49:51,126 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-26 11:49:51,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-26 11:49:51,127 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2023-11-26 11:49:51,127 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2023-11-26 11:49:51,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:49:51,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 11:49:51,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 11:49:51,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 11:49:51,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-26 11:49:51,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-26 11:49:51,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-26 11:49:51,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-26 11:49:51,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-26 11:49:51,605 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:49:51,609 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:49:52,651 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:49:52,783 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:49:52,783 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-26 11:49:52,784 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:49:52 BoogieIcfgContainer [2023-11-26 11:49:52,784 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:49:52,787 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:49:52,787 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:49:52,790 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:49:52,791 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:49:46" (1/3) ... [2023-11-26 11:49:52,791 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d42a466 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:49:52, skipping insertion in model container [2023-11-26 11:49:52,792 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:50" (2/3) ... [2023-11-26 11:49:52,792 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d42a466 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:49:52, skipping insertion in model container [2023-11-26 11:49:52,792 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:49:52" (3/3) ... [2023-11-26 11:49:52,794 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_hash_table_move_harness_negated.i [2023-11-26 11:49:52,814 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:49:52,814 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 11:49:52,869 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:49:52,876 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;@5c7eef1a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:49:52,876 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 11:49:52,881 INFO L276 IsEmpty]: Start isEmpty. Operand has 111 states, 64 states have (on average 1.25) internal successors, (80), 64 states have internal predecessors, (80), 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) [2023-11-26 11:49:52,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-11-26 11:49:52,898 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:52,899 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:52,900 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:52,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:52,906 INFO L85 PathProgramCache]: Analyzing trace with hash -735533145, now seen corresponding path program 1 times [2023-11-26 11:49:52,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:52,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50277848] [2023-11-26 11:49:52,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:52,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:53,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:53,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:53,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50277848] [2023-11-26 11:49:53,572 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-26 11:49:53,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123176629] [2023-11-26 11:49:53,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:53,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:49:53,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4cd2652-d530-436d-9c11-b1448a54cff3/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:49:53,582 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4cd2652-d530-436d-9c11-b1448a54cff3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:49:53,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4cd2652-d530-436d-9c11-b1448a54cff3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 11:49:54,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:54,355 INFO L262 TraceCheckSpWp]: Trace formula consists of 2415 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 11:49:54,368 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:49:54,409 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2023-11-26 11:49:54,410 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:49:54,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2123176629] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:54,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:54,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:49:54,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312024658] [2023-11-26 11:49:54,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:54,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 11:49:54,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:54,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 11:49:54,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:49:54,459 INFO L87 Difference]: Start difference. First operand has 111 states, 64 states have (on average 1.25) internal successors, (80), 64 states have internal predecessors, (80), 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 20.0) internal successors, (40), 2 states have internal predecessors, (40), 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) [2023-11-26 11:49:54,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:54,860 INFO L93 Difference]: Finished difference Result 216 states and 303 transitions. [2023-11-26 11:49:54,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:49:54,866 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 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 128 [2023-11-26 11:49:54,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:54,875 INFO L225 Difference]: With dead ends: 216 [2023-11-26 11:49:54,876 INFO L226 Difference]: Without dead ends: 109 [2023-11-26 11:49:54,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:49:54,884 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:54,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 123 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 11:49:54,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-11-26 11:49:54,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2023-11-26 11:49:54,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 62 states have (on average 1.1935483870967742) internal successors, (74), 63 states have internal predecessors, (74), 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) [2023-11-26 11:49:54,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 137 transitions. [2023-11-26 11:49:54,954 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 137 transitions. Word has length 128 [2023-11-26 11:49:54,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:54,958 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 137 transitions. [2023-11-26 11:49:54,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 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) [2023-11-26 11:49:54,959 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 137 transitions. [2023-11-26 11:49:54,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-26 11:49:54,966 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:54,967 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:54,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4cd2652-d530-436d-9c11-b1448a54cff3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 11:49:55,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4cd2652-d530-436d-9c11-b1448a54cff3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-26 11:49:55,178 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:55,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:55,179 INFO L85 PathProgramCache]: Analyzing trace with hash 965151586, now seen corresponding path program 1 times [2023-11-26 11:49:55,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:55,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657631147] [2023-11-26 11:49:55,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:55,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:55,305 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:49:55,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [743253407] [2023-11-26 11:49:55,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:55,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:49:55,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4cd2652-d530-436d-9c11-b1448a54cff3/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:49:55,307 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4cd2652-d530-436d-9c11-b1448a54cff3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:49:55,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4cd2652-d530-436d-9c11-b1448a54cff3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 11:49:56,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:56,023 INFO L262 TraceCheckSpWp]: Trace formula consists of 2443 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 11:49:56,030 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:49:56,087 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-26 11:49:56,087 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:49:56,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:56,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657631147] [2023-11-26 11:49:56,088 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:49:56,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [743253407] [2023-11-26 11:49:56,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [743253407] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:56,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:56,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:49:56,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235970050] [2023-11-26 11:49:56,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:56,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:49:56,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:56,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:49:56,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:49:56,092 INFO L87 Difference]: Start difference. First operand 109 states and 137 transitions. Second operand has 5 states, 4 states have (on average 12.75) internal successors, (51), 5 states have internal predecessors, (51), 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) [2023-11-26 11:49:57,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:57,107 INFO L93 Difference]: Finished difference Result 212 states and 267 transitions. [2023-11-26 11:49:57,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:49:57,108 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.75) internal successors, (51), 5 states have internal predecessors, (51), 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 133 [2023-11-26 11:49:57,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:57,110 INFO L225 Difference]: With dead ends: 212 [2023-11-26 11:49:57,110 INFO L226 Difference]: Without dead ends: 113 [2023-11-26 11:49:57,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:49:57,113 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 1 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:57,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 476 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-26 11:49:57,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-11-26 11:49:57,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2023-11-26 11:49:57,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 65 states have (on average 1.1846153846153846) internal successors, (77), 66 states have internal predecessors, (77), 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) [2023-11-26 11:49:57,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 141 transitions. [2023-11-26 11:49:57,131 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 141 transitions. Word has length 133 [2023-11-26 11:49:57,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:57,132 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 141 transitions. [2023-11-26 11:49:57,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.75) internal successors, (51), 5 states have internal predecessors, (51), 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) [2023-11-26 11:49:57,133 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 141 transitions. [2023-11-26 11:49:57,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-11-26 11:49:57,136 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:57,136 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:57,152 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4cd2652-d530-436d-9c11-b1448a54cff3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-26 11:49:57,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4cd2652-d530-436d-9c11-b1448a54cff3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:49:57,347 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:57,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:57,348 INFO L85 PathProgramCache]: Analyzing trace with hash 216111526, now seen corresponding path program 1 times [2023-11-26 11:49:57,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:57,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937767135] [2023-11-26 11:49:57,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:57,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:57,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:59,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:49:59,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:59,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 11:49:59,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:59,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-26 11:49:59,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:59,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 11:49:59,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:59,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 11:49:59,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:59,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:49:59,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:59,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:49:59,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:59,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 11:49:59,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:59,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-26 11:49:59,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:59,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-26 11:49:59,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:59,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:49:59,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:59,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-26 11:49:59,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:00,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-26 11:50:00,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:00,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-26 11:50:00,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:00,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:50:00,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:00,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:50:00,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:00,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 11:50:00,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:00,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-26 11:50:00,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:00,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-26 11:50:00,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:00,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-26 11:50:00,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:00,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-26 11:50:00,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:00,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-26 11:50:00,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:00,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-26 11:50:00,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:00,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-26 11:50:00,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:00,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-26 11:50:00,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:00,280 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2023-11-26 11:50:00,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:50:00,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937767135] [2023-11-26 11:50:00,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937767135] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:50:00,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1932086258] [2023-11-26 11:50:00,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:50:00,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:50:00,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4cd2652-d530-436d-9c11-b1448a54cff3/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:50:00,283 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4cd2652-d530-436d-9c11-b1448a54cff3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:50:00,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4cd2652-d530-436d-9c11-b1448a54cff3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 11:50:00,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:00,917 INFO L262 TraceCheckSpWp]: Trace formula consists of 2441 conjuncts, 34 conjunts are in the unsatisfiable core [2023-11-26 11:50:00,926 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:50:01,169 INFO L378 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 [2023-11-26 11:50:01,630 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-26 11:50:01,630 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:50:01,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1932086258] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:50:01,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:50:01,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [15] total 23 [2023-11-26 11:50:01,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120493833] [2023-11-26 11:50:01,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:50:01,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-26 11:50:01,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:50:01,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-26 11:50:01,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=437, Unknown=0, NotChecked=0, Total=506 [2023-11-26 11:50:01,634 INFO L87 Difference]: Start difference. First operand 113 states and 141 transitions. Second operand has 11 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 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) [2023-11-26 11:50:05,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-26 11:50:12,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-26 11:50:16,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-26 11:50:20,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-26 11:50:25,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-26 11:50:29,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-26 11:50:29,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:50:29,830 INFO L93 Difference]: Finished difference Result 271 states and 330 transitions. [2023-11-26 11:50:29,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-26 11:50:29,831 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 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 141 [2023-11-26 11:50:29,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:50:29,836 INFO L225 Difference]: With dead ends: 271 [2023-11-26 11:50:29,836 INFO L226 Difference]: Without dead ends: 178 [2023-11-26 11:50:29,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=108, Invalid=594, Unknown=0, NotChecked=0, Total=702 [2023-11-26 11:50:29,839 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 99 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 20 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:50:29,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 694 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 398 Invalid, 6 Unknown, 0 Unchecked, 28.0s Time] [2023-11-26 11:50:29,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2023-11-26 11:50:29,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 175. [2023-11-26 11:50:29,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 107 states have (on average 1.205607476635514) internal successors, (129), 109 states have internal predecessors, (129), 40 states have call successors, (40), 24 states have call predecessors, (40), 27 states have return successors, (42), 41 states have call predecessors, (42), 39 states have call successors, (42) [2023-11-26 11:50:29,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 211 transitions. [2023-11-26 11:50:29,865 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 211 transitions. Word has length 141 [2023-11-26 11:50:29,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:50:29,866 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 211 transitions. [2023-11-26 11:50:29,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 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) [2023-11-26 11:50:29,866 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 211 transitions. [2023-11-26 11:50:29,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-11-26 11:50:29,870 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:50:29,870 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:50:29,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4cd2652-d530-436d-9c11-b1448a54cff3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-26 11:50:30,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4cd2652-d530-436d-9c11-b1448a54cff3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:50:30,080 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:50:30,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:50:30,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1540967720, now seen corresponding path program 1 times [2023-11-26 11:50:30,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:50:30,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616759221] [2023-11-26 11:50:30,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:50:30,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:50:30,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:30,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:50:30,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:30,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 11:50:30,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:30,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-26 11:50:30,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:30,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 11:50:30,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:30,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 11:50:30,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:30,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:50:30,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:30,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:50:30,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:30,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 11:50:30,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:30,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-26 11:50:30,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:30,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-26 11:50:30,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:30,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:50:30,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:30,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-26 11:50:30,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:31,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-26 11:50:31,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:31,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-26 11:50:31,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:31,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:50:31,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:31,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:50:31,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:31,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 11:50:31,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:31,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-26 11:50:31,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:31,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-26 11:50:31,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:31,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-26 11:50:31,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:31,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-26 11:50:31,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:31,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-26 11:50:31,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:31,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-26 11:50:31,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:31,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-26 11:50:31,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:31,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-26 11:50:31,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:31,242 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2023-11-26 11:50:31,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:50:31,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616759221] [2023-11-26 11:50:31,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616759221] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:50:31,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2006157555] [2023-11-26 11:50:31,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:50:31,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:50:31,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4cd2652-d530-436d-9c11-b1448a54cff3/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:50:31,248 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4cd2652-d530-436d-9c11-b1448a54cff3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:50:31,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4cd2652-d530-436d-9c11-b1448a54cff3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 11:50:31,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:31,931 INFO L262 TraceCheckSpWp]: Trace formula consists of 2436 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 11:50:31,939 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:50:32,079 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-26 11:50:32,083 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:50:32,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2006157555] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:50:32,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:50:32,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2023-11-26 11:50:32,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153558493] [2023-11-26 11:50:32,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:50:32,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:50:32,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:50:32,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:50:32,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-11-26 11:50:32,086 INFO L87 Difference]: Start difference. First operand 175 states and 211 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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) [2023-11-26 11:50:32,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:50:32,883 INFO L93 Difference]: Finished difference Result 303 states and 370 transitions. [2023-11-26 11:50:32,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:50:32,883 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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 141 [2023-11-26 11:50:32,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:50:32,890 INFO L225 Difference]: With dead ends: 303 [2023-11-26 11:50:32,894 INFO L226 Difference]: Without dead ends: 185 [2023-11-26 11:50:32,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-11-26 11:50:32,899 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 14 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-26 11:50:32,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 441 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-26 11:50:32,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2023-11-26 11:50:32,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 177. [2023-11-26 11:50:32,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 108 states have (on average 1.2037037037037037) internal successors, (130), 110 states have internal predecessors, (130), 41 states have call successors, (41), 24 states have call predecessors, (41), 27 states have return successors, (43), 42 states have call predecessors, (43), 40 states have call successors, (43) [2023-11-26 11:50:32,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 214 transitions. [2023-11-26 11:50:32,929 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 214 transitions. Word has length 141 [2023-11-26 11:50:32,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:50:32,930 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 214 transitions. [2023-11-26 11:50:32,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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) [2023-11-26 11:50:32,931 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 214 transitions. [2023-11-26 11:50:32,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-26 11:50:32,935 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:50:32,938 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:50:32,950 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4cd2652-d530-436d-9c11-b1448a54cff3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-26 11:50:33,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4cd2652-d530-436d-9c11-b1448a54cff3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:50:33,139 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:50:33,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:50:33,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1067189877, now seen corresponding path program 1 times [2023-11-26 11:50:33,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:50:33,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650759637] [2023-11-26 11:50:33,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:50:33,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:50:33,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:34,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:50:34,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:34,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 11:50:34,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:34,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-26 11:50:34,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:34,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 11:50:34,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:34,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 11:50:34,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:34,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:50:34,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:34,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:50:34,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:34,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 11:50:34,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:34,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-26 11:50:34,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:34,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-26 11:50:34,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:34,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:50:34,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:34,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-26 11:50:34,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:34,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-26 11:50:34,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:34,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-26 11:50:34,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:34,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-26 11:50:34,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:34,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:50:34,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:34,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:50:34,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:34,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 11:50:34,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:34,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-26 11:50:34,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:34,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-26 11:50:34,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:34,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-26 11:50:34,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:34,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-26 11:50:34,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:34,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-26 11:50:34,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:34,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-26 11:50:34,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:34,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-26 11:50:34,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:34,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-26 11:50:34,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:34,642 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2023-11-26 11:50:34,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:50:34,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650759637] [2023-11-26 11:50:34,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650759637] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:50:34,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [681743968] [2023-11-26 11:50:34,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:50:34,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:50:34,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4cd2652-d530-436d-9c11-b1448a54cff3/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:50:34,648 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4cd2652-d530-436d-9c11-b1448a54cff3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:50:34,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4cd2652-d530-436d-9c11-b1448a54cff3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-26 11:50:35,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:35,320 INFO L262 TraceCheckSpWp]: Trace formula consists of 2465 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-26 11:50:35,326 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:50:39,554 WARN L876 $PredicateComparison]: unable to prove that (or (exists ((aws_hash_table_is_valid_~map.base Int) (aws_hash_table_is_valid_~map.offset Int)) (not (= (select (select |c_#memory_$Pointer$#7.base| aws_hash_table_is_valid_~map.base) aws_hash_table_is_valid_~map.offset) 0))) (exists ((aws_hash_table_is_valid_~map.base Int) (aws_hash_table_is_valid_~map.offset Int)) (not (= (select (select |c_#memory_$Pointer$#7.offset| aws_hash_table_is_valid_~map.base) aws_hash_table_is_valid_~map.offset) 0)))) is different from true