./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ac2d6f81182a30a3913994ab9f22d7c2f1f468956657d41080d094a676bb2180 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:07:31,878 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:07:31,988 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-12 02:07:31,995 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:07:31,995 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:07:32,038 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:07:32,039 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:07:32,039 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:07:32,040 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:07:32,045 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:07:32,046 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:07:32,047 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:07:32,047 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:07:32,049 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:07:32,050 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:07:32,050 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:07:32,050 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:07:32,051 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:07:32,051 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:07:32,052 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:07:32,052 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:07:32,053 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:07:32,053 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:07:32,054 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:07:32,054 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:07:32,055 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:07:32,055 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:07:32,056 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:07:32,056 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:07:32,056 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:07:32,058 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:07:32,058 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:07:32,058 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:07:32,058 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:07:32,059 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:07:32,059 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:07:32,059 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_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac2d6f81182a30a3913994ab9f22d7c2f1f468956657d41080d094a676bb2180 [2023-11-12 02:07:32,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:07:32,405 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:07:32,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:07:32,410 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:07:32,411 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:07:32,412 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness_negated.i [2023-11-12 02:07:35,606 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:07:36,199 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:07:36,200 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness_negated.i [2023-11-12 02:07:36,261 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/data/78c858cef/eb589f93c32d415bb54f98de02a739ed/FLAG534daf0f0 [2023-11-12 02:07:36,712 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/data/78c858cef/eb589f93c32d415bb54f98de02a739ed [2023-11-12 02:07:36,715 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:07:36,717 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:07:36,719 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:07:36,719 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:07:36,733 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:07:36,735 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:07:36" (1/1) ... [2023-11-12 02:07:36,736 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17b9eaae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:36, skipping insertion in model container [2023-11-12 02:07:36,736 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:07:36" (1/1) ... [2023-11-12 02:07:36,892 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:07:37,301 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_01550078-f964-4de0-9059-954f0ca8a16c/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness_negated.i[4499,4512] [2023-11-12 02:07:37,314 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_01550078-f964-4de0-9059-954f0ca8a16c/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness_negated.i[4559,4572] [2023-11-12 02:07:38,759 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:07:38,761 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:07:38,762 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:07:38,763 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:07:38,765 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:07:38,785 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:07:38,786 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:07:38,789 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:07:38,790 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:07:39,392 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 02:07:39,393 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 02:07:39,395 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 02:07:39,396 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 02:07:39,398 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 02:07:39,399 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 02:07:39,400 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 02:07:39,401 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 02:07:39,402 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 02:07:39,403 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 02:07:39,770 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:07:39,770 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:07:39,818 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:07:39,868 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:07:39,885 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_01550078-f964-4de0-9059-954f0ca8a16c/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness_negated.i[4499,4512] [2023-11-12 02:07:39,886 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_01550078-f964-4de0-9059-954f0ca8a16c/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness_negated.i[4559,4572] [2023-11-12 02:07:39,925 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:07:39,925 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:07:39,926 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:07:39,927 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:07:39,927 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:07:39,939 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:07:39,940 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:07:39,941 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:07:39,942 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:07:39,985 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 02:07:39,986 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 02:07:39,987 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 02:07:39,988 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 02:07:39,990 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 02:07:39,991 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 02:07:39,992 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 02:07:39,992 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 02:07:39,993 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 02:07:39,994 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 02:07:40,163 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8556] [2023-11-12 02:07:40,165 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:07:40,166 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:07:40,225 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:07:40,545 WARN L672 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:07:40,545 WARN L672 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:07:40,545 WARN L672 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:07:40,545 WARN L672 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:07:40,546 WARN L672 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:07:40,546 WARN L672 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:07:40,546 WARN L672 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:07:40,546 WARN L672 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:07:40,546 WARN L672 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:07:40,547 WARN L672 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:07:40,547 WARN L672 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:07:40,547 WARN L672 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:07:40,547 WARN L672 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:07:40,548 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:07:40,548 WARN L672 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:07:40,548 WARN L672 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:07:40,548 WARN L672 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:07:40,557 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:07:40,557 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:40 WrapperNode [2023-11-12 02:07:40,558 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:07:40,559 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:07:40,559 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:07:40,559 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:07:40,568 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:40" (1/1) ... [2023-11-12 02:07:40,683 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:40" (1/1) ... [2023-11-12 02:07:40,777 INFO L138 Inliner]: procedures = 680, calls = 2274, calls flagged for inlining = 57, calls inlined = 5, statements flattened = 368 [2023-11-12 02:07:40,779 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:07:40,781 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:07:40,781 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:07:40,781 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:07:40,790 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:40" (1/1) ... [2023-11-12 02:07:40,790 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:40" (1/1) ... [2023-11-12 02:07:40,804 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:40" (1/1) ... [2023-11-12 02:07:40,805 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:40" (1/1) ... [2023-11-12 02:07:40,834 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:40" (1/1) ... [2023-11-12 02:07:40,838 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:40" (1/1) ... [2023-11-12 02:07:40,859 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:40" (1/1) ... [2023-11-12 02:07:40,864 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:40" (1/1) ... [2023-11-12 02:07:40,877 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:07:40,878 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:07:40,878 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:07:40,878 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:07:40,879 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:40" (1/1) ... [2023-11-12 02:07:40,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:07:40,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:40,927 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:40,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:07:40,976 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2023-11-12 02:07:40,977 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2023-11-12 02:07:40,977 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_ignore_case [2023-11-12 02:07:40,977 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_ignore_case [2023-11-12 02:07:40,977 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2023-11-12 02:07:40,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2023-11-12 02:07:40,978 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-12 02:07:40,978 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-12 02:07:40,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:07:40,978 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 02:07:40,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 02:07:40,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:07:40,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:07:40,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:07:40,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:07:40,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:07:40,980 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-12 02:07:40,980 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-12 02:07:40,980 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 02:07:40,980 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 02:07:40,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 02:07:40,981 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-12 02:07:40,981 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-12 02:07:40,981 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-12 02:07:40,981 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-12 02:07:40,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:07:40,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:07:41,305 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:07:41,307 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:07:41,911 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:07:41,919 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:07:41,920 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:07:41,922 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:07:41 BoogieIcfgContainer [2023-11-12 02:07:41,922 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:07:41,925 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:07:41,925 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:07:41,929 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:07:41,929 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:07:36" (1/3) ... [2023-11-12 02:07:41,930 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@358d09b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:07:41, skipping insertion in model container [2023-11-12 02:07:41,930 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:40" (2/3) ... [2023-11-12 02:07:41,930 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@358d09b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:07:41, skipping insertion in model container [2023-11-12 02:07:41,930 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:07:41" (3/3) ... [2023-11-12 02:07:41,932 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_string_eq_ignore_case_harness_negated.i [2023-11-12 02:07:41,953 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:07:41,954 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:07:42,012 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:07:42,020 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;@44cbe51e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:07:42,020 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:07:42,025 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 64 states have (on average 1.265625) internal successors, (81), 65 states have internal predecessors, (81), 23 states have call successors, (23), 9 states have call predecessors, (23), 9 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-12 02:07:42,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-12 02:07:42,039 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:07:42,040 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-11-12 02:07:42,040 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:07:42,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:42,047 INFO L85 PathProgramCache]: Analyzing trace with hash -140199032, now seen corresponding path program 1 times [2023-11-12 02:07:42,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:07:42,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131310593] [2023-11-12 02:07:42,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:42,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:07:42,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:42,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:07:42,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:42,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:07:42,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:42,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-12 02:07:42,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:42,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:07:42,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:42,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-12 02:07:42,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:42,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-12 02:07:42,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:42,642 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-12 02:07:42,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:07:42,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131310593] [2023-11-12 02:07:42,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131310593] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:07:42,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:07:42,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:07:42,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260931871] [2023-11-12 02:07:42,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:07:42,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:07:42,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:07:42,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:07:42,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:07:42,701 INFO L87 Difference]: Start difference. First operand has 98 states, 64 states have (on average 1.265625) internal successors, (81), 65 states have internal predecessors, (81), 23 states have call successors, (23), 9 states have call predecessors, (23), 9 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-12 02:07:42,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:07:42,754 INFO L93 Difference]: Finished difference Result 191 states and 259 transitions. [2023-11-12 02:07:42,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:07:42,778 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 48 [2023-11-12 02:07:42,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:07:42,793 INFO L225 Difference]: With dead ends: 191 [2023-11-12 02:07:42,793 INFO L226 Difference]: Without dead ends: 93 [2023-11-12 02:07:42,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:07:42,814 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:07:42,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:07:42,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-11-12 02:07:42,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2023-11-12 02:07:42,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 60 states have (on average 1.2166666666666666) internal successors, (73), 61 states have internal predecessors, (73), 23 states have call successors, (23), 9 states have call predecessors, (23), 9 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-12 02:07:42,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 118 transitions. [2023-11-12 02:07:42,903 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 118 transitions. Word has length 48 [2023-11-12 02:07:42,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:07:42,907 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 118 transitions. [2023-11-12 02:07:42,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-12 02:07:42,912 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 118 transitions. [2023-11-12 02:07:42,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-12 02:07:42,918 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:07:42,919 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-11-12 02:07:42,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:07:42,920 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:07:42,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:42,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1767103160, now seen corresponding path program 1 times [2023-11-12 02:07:42,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:07:42,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722765631] [2023-11-12 02:07:42,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:42,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:07:43,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:43,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:07:43,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:43,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:07:43,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:43,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-12 02:07:43,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:43,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:07:43,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:43,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-12 02:07:43,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:43,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-12 02:07:43,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:43,451 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-12 02:07:43,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:07:43,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722765631] [2023-11-12 02:07:43,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722765631] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:07:43,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:07:43,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:07:43,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624326350] [2023-11-12 02:07:43,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:07:43,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:07:43,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:07:43,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:07:43,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:07:43,457 INFO L87 Difference]: Start difference. First operand 93 states and 118 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-12 02:07:43,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:07:43,505 INFO L93 Difference]: Finished difference Result 137 states and 179 transitions. [2023-11-12 02:07:43,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:07:43,506 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 48 [2023-11-12 02:07:43,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:07:43,508 INFO L225 Difference]: With dead ends: 137 [2023-11-12 02:07:43,508 INFO L226 Difference]: Without dead ends: 93 [2023-11-12 02:07:43,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:07:43,511 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 10 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:07:43,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 339 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:07:43,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-11-12 02:07:43,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2023-11-12 02:07:43,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 60 states have (on average 1.2) internal successors, (72), 61 states have internal predecessors, (72), 23 states have call successors, (23), 9 states have call predecessors, (23), 9 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-12 02:07:43,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 117 transitions. [2023-11-12 02:07:43,526 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 117 transitions. Word has length 48 [2023-11-12 02:07:43,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:07:43,527 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 117 transitions. [2023-11-12 02:07:43,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-12 02:07:43,527 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 117 transitions. [2023-11-12 02:07:43,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-12 02:07:43,531 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:07:43,532 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:07:43,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:07:43,532 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:07:43,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:43,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1847125036, now seen corresponding path program 1 times [2023-11-12 02:07:43,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:07:43,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779447880] [2023-11-12 02:07:43,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:43,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:07:43,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:44,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:07:44,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:44,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-12 02:07:44,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:44,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:07:44,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:44,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:07:44,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:44,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:07:44,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:45,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:07:45,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:45,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-12 02:07:45,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:45,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-12 02:07:45,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:45,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-12 02:07:45,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:45,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-12 02:07:45,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:45,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-12 02:07:45,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:45,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-12 02:07:45,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:45,444 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-12 02:07:45,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:07:45,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779447880] [2023-11-12 02:07:45,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779447880] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:07:45,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2146028301] [2023-11-12 02:07:45,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:45,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:07:45,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:45,453 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:07:45,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:07:45,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:45,837 INFO L262 TraceCheckSpWp]: Trace formula consists of 839 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-12 02:07:45,850 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:07:46,439 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-12 02:07:46,440 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:07:46,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2146028301] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:07:46,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:07:46,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [17] total 29 [2023-11-12 02:07:46,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986646259] [2023-11-12 02:07:46,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:07:46,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-12 02:07:46,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:07:46,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-12 02:07:46,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=750, Unknown=0, NotChecked=0, Total=812 [2023-11-12 02:07:46,446 INFO L87 Difference]: Start difference. First operand 93 states and 117 transitions. Second operand has 14 states, 14 states have (on average 3.0) internal successors, (42), 12 states have internal predecessors, (42), 4 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 6 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-12 02:07:46,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:07:46,940 INFO L93 Difference]: Finished difference Result 118 states and 149 transitions. [2023-11-12 02:07:46,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-12 02:07:46,941 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 12 states have internal predecessors, (42), 4 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 6 states have call predecessors, (12), 3 states have call successors, (12) Word has length 82 [2023-11-12 02:07:46,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:07:46,948 INFO L225 Difference]: With dead ends: 118 [2023-11-12 02:07:46,949 INFO L226 Difference]: Without dead ends: 99 [2023-11-12 02:07:46,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=92, Invalid=1098, Unknown=0, NotChecked=0, Total=1190 [2023-11-12 02:07:46,956 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 33 mSDsluCounter, 1037 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 1137 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:07:46,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 1137 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:07:46,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-11-12 02:07:46,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 98. [2023-11-12 02:07:46,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 64 states have (on average 1.203125) internal successors, (77), 66 states have internal predecessors, (77), 23 states have call successors, (23), 9 states have call predecessors, (23), 10 states have return successors, (25), 22 states have call predecessors, (25), 22 states have call successors, (25) [2023-11-12 02:07:46,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 125 transitions. [2023-11-12 02:07:46,980 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 125 transitions. Word has length 82 [2023-11-12 02:07:46,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:07:46,983 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 125 transitions. [2023-11-12 02:07:46,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 12 states have internal predecessors, (42), 4 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 6 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-12 02:07:46,984 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 125 transitions. [2023-11-12 02:07:46,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-12 02:07:46,989 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:07:46,989 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:07:47,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:47,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:07:47,191 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:07:47,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:47,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1638495634, now seen corresponding path program 1 times [2023-11-12 02:07:47,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:07:47,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135002275] [2023-11-12 02:07:47,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:47,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:07:47,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:47,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:07:47,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:47,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-12 02:07:47,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:48,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:07:48,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:48,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:07:48,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:48,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:07:48,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:48,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:07:48,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:48,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-12 02:07:48,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:48,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-12 02:07:48,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:48,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-12 02:07:48,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:48,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-12 02:07:48,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:48,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-12 02:07:48,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:48,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-12 02:07:48,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:48,671 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-12 02:07:48,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:07:48,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135002275] [2023-11-12 02:07:48,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135002275] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:07:48,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615887374] [2023-11-12 02:07:48,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:48,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:07:48,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:48,673 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:07:48,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:07:48,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:48,977 INFO L262 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-12 02:07:48,982 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:07:49,145 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-12 02:07:49,145 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:07:49,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [615887374] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:07:49,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:07:49,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [17] total 22 [2023-11-12 02:07:49,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018652077] [2023-11-12 02:07:49,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:07:49,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 02:07:49,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:07:49,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 02:07:49,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=416, Unknown=0, NotChecked=0, Total=462 [2023-11-12 02:07:49,150 INFO L87 Difference]: Start difference. First operand 98 states and 125 transitions. Second operand has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 9 states have internal predecessors, (45), 4 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-12 02:07:49,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:07:49,339 INFO L93 Difference]: Finished difference Result 150 states and 193 transitions. [2023-11-12 02:07:49,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-12 02:07:49,340 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 9 states have internal predecessors, (45), 4 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) Word has length 82 [2023-11-12 02:07:49,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:07:49,342 INFO L225 Difference]: With dead ends: 150 [2023-11-12 02:07:49,342 INFO L226 Difference]: Without dead ends: 98 [2023-11-12 02:07:49,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=588, Unknown=0, NotChecked=0, Total=650 [2023-11-12 02:07:49,344 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 26 mSDsluCounter, 905 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:07:49,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 1011 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:07:49,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-11-12 02:07:49,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2023-11-12 02:07:49,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 64 states have (on average 1.1875) internal successors, (76), 66 states have internal predecessors, (76), 23 states have call successors, (23), 9 states have call predecessors, (23), 10 states have return successors, (25), 22 states have call predecessors, (25), 22 states have call successors, (25) [2023-11-12 02:07:49,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 124 transitions. [2023-11-12 02:07:49,365 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 124 transitions. Word has length 82 [2023-11-12 02:07:49,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:07:49,366 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 124 transitions. [2023-11-12 02:07:49,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 9 states have internal predecessors, (45), 4 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-12 02:07:49,367 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 124 transitions. [2023-11-12 02:07:49,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-12 02:07:49,370 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:07:49,371 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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] [2023-11-12 02:07:49,379 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-12 02:07:49,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:07:49,578 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:07:49,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:49,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1735619123, now seen corresponding path program 1 times [2023-11-12 02:07:49,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:07:49,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155275862] [2023-11-12 02:07:49,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:49,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:07:49,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:50,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:07:50,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:50,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-12 02:07:50,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:50,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:07:50,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:50,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:07:50,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:50,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:07:50,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:50,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:07:50,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:50,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-12 02:07:50,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:50,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-12 02:07:50,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:50,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-12 02:07:50,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:50,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-12 02:07:50,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:51,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-12 02:07:51,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:51,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-12 02:07:51,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:51,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-12 02:07:51,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:51,037 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-12 02:07:51,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:07:51,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155275862] [2023-11-12 02:07:51,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155275862] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:07:51,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [346947854] [2023-11-12 02:07:51,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:51,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:07:51,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:51,040 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:07:51,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 02:07:51,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:51,324 INFO L262 TraceCheckSpWp]: Trace formula consists of 867 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-12 02:07:51,329 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:07:51,872 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-12 02:07:51,872 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:07:51,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [346947854] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:07:51,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:07:51,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [21] total 34 [2023-11-12 02:07:51,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613453203] [2023-11-12 02:07:51,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:07:51,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-12 02:07:51,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:07:51,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-12 02:07:51,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=1048, Unknown=0, NotChecked=0, Total=1122 [2023-11-12 02:07:51,881 INFO L87 Difference]: Start difference. First operand 98 states and 124 transitions. Second operand has 15 states, 15 states have (on average 3.466666666666667) internal successors, (52), 13 states have internal predecessors, (52), 5 states have call successors, (14), 2 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-12 02:07:52,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:07:52,415 INFO L93 Difference]: Finished difference Result 152 states and 194 transitions. [2023-11-12 02:07:52,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-12 02:07:52,416 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.466666666666667) internal successors, (52), 13 states have internal predecessors, (52), 5 states have call successors, (14), 2 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) Word has length 91 [2023-11-12 02:07:52,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:07:52,421 INFO L225 Difference]: With dead ends: 152 [2023-11-12 02:07:52,421 INFO L226 Difference]: Without dead ends: 99 [2023-11-12 02:07:52,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=108, Invalid=1532, Unknown=0, NotChecked=0, Total=1640 [2023-11-12 02:07:52,426 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 51 mSDsluCounter, 1161 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 1256 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 02:07:52,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 1256 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 02:07:52,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-11-12 02:07:52,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 98. [2023-11-12 02:07:52,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 64 states have (on average 1.1875) internal successors, (76), 66 states have internal predecessors, (76), 23 states have call successors, (23), 9 states have call predecessors, (23), 10 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2023-11-12 02:07:52,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 123 transitions. [2023-11-12 02:07:52,442 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 123 transitions. Word has length 91 [2023-11-12 02:07:52,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:07:52,443 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 123 transitions. [2023-11-12 02:07:52,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.466666666666667) internal successors, (52), 13 states have internal predecessors, (52), 5 states have call successors, (14), 2 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-12 02:07:52,444 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 123 transitions. [2023-11-12 02:07:52,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-12 02:07:52,445 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:07:52,446 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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] [2023-11-12 02:07:52,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:52,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:07:52,655 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:07:52,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:52,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1663232565, now seen corresponding path program 1 times [2023-11-12 02:07:52,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:07:52,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927766589] [2023-11-12 02:07:52,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:52,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:07:52,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:53,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:07:53,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:53,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-12 02:07:53,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:53,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:07:53,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:53,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:07:53,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:53,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:07:53,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:54,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:07:54,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:54,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-12 02:07:54,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:54,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-12 02:07:54,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:54,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-12 02:07:54,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:54,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-12 02:07:54,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:54,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-12 02:07:54,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:54,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-12 02:07:54,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:54,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-12 02:07:54,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:54,277 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-11-12 02:07:54,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:07:54,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927766589] [2023-11-12 02:07:54,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927766589] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:07:54,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [102052196] [2023-11-12 02:07:54,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:54,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:07:54,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:54,280 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:07:54,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 02:07:54,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:54,589 INFO L262 TraceCheckSpWp]: Trace formula consists of 872 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-12 02:07:54,595 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:07:54,871 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-12 02:07:54,872 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:07:54,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [102052196] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:07:54,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:07:54,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [19] total 26 [2023-11-12 02:07:54,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559600689] [2023-11-12 02:07:54,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:07:54,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-12 02:07:54,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:07:54,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-12 02:07:54,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2023-11-12 02:07:54,875 INFO L87 Difference]: Start difference. First operand 98 states and 123 transitions. Second operand has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 11 states have internal predecessors, (49), 6 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 8 states have call predecessors, (13), 6 states have call successors, (13) [2023-11-12 02:07:55,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:07:55,185 INFO L93 Difference]: Finished difference Result 132 states and 166 transitions. [2023-11-12 02:07:55,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-12 02:07:55,186 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 11 states have internal predecessors, (49), 6 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 8 states have call predecessors, (13), 6 states have call successors, (13) Word has length 91 [2023-11-12 02:07:55,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:07:55,187 INFO L225 Difference]: With dead ends: 132 [2023-11-12 02:07:55,188 INFO L226 Difference]: Without dead ends: 105 [2023-11-12 02:07:55,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=94, Invalid=898, Unknown=0, NotChecked=0, Total=992 [2023-11-12 02:07:55,189 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 46 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 1050 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:07:55,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 1050 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:07:55,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-11-12 02:07:55,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 101. [2023-11-12 02:07:55,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 66 states have (on average 1.1818181818181819) internal successors, (78), 68 states have internal predecessors, (78), 24 states have call successors, (24), 9 states have call predecessors, (24), 10 states have return successors, (25), 23 states have call predecessors, (25), 23 states have call successors, (25) [2023-11-12 02:07:55,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 127 transitions. [2023-11-12 02:07:55,201 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 127 transitions. Word has length 91 [2023-11-12 02:07:55,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:07:55,202 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 127 transitions. [2023-11-12 02:07:55,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 11 states have internal predecessors, (49), 6 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 8 states have call predecessors, (13), 6 states have call successors, (13) [2023-11-12 02:07:55,203 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 127 transitions. [2023-11-12 02:07:55,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-12 02:07:55,204 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:07:55,204 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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] [2023-11-12 02:07:55,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:55,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-12 02:07:55,417 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:07:55,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:55,418 INFO L85 PathProgramCache]: Analyzing trace with hash -2062733139, now seen corresponding path program 1 times [2023-11-12 02:07:55,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:07:55,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488673915] [2023-11-12 02:07:55,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:55,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:07:55,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:55,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:07:55,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:56,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-12 02:07:56,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:56,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:07:56,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:56,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:07:56,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:56,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:07:56,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:56,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:07:56,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:56,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-12 02:07:56,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:56,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-12 02:07:56,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:56,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-12 02:07:56,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:56,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-12 02:07:56,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:56,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-12 02:07:56,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:56,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-12 02:07:56,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:56,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-12 02:07:57,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:57,012 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-11-12 02:07:57,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:07:57,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488673915] [2023-11-12 02:07:57,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488673915] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:07:57,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1618023761] [2023-11-12 02:07:57,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:57,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:07:57,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:57,015 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:07:57,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-12 02:07:57,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:57,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 870 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-12 02:07:57,309 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:07:57,517 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-12 02:07:57,517 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:07:57,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1618023761] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:07:57,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:07:57,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [18] total 20 [2023-11-12 02:07:57,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841710125] [2023-11-12 02:07:57,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:07:57,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:07:57,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:07:57,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:07:57,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2023-11-12 02:07:57,522 INFO L87 Difference]: Start difference. First operand 101 states and 127 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 4 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-12 02:07:57,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:07:57,689 INFO L93 Difference]: Finished difference Result 147 states and 183 transitions. [2023-11-12 02:07:57,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:07:57,690 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 4 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 92 [2023-11-12 02:07:57,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:07:57,693 INFO L225 Difference]: With dead ends: 147 [2023-11-12 02:07:57,693 INFO L226 Difference]: Without dead ends: 98 [2023-11-12 02:07:57,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=448, Unknown=0, NotChecked=0, Total=506 [2023-11-12 02:07:57,695 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 15 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:07:57,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 400 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:07:57,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-11-12 02:07:57,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2023-11-12 02:07:57,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 64 states have (on average 1.171875) internal successors, (75), 66 states have internal predecessors, (75), 23 states have call successors, (23), 9 states have call predecessors, (23), 10 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2023-11-12 02:07:57,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 122 transitions. [2023-11-12 02:07:57,716 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 122 transitions. Word has length 92 [2023-11-12 02:07:57,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:07:57,717 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 122 transitions. [2023-11-12 02:07:57,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 4 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-12 02:07:57,718 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 122 transitions. [2023-11-12 02:07:57,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-12 02:07:57,724 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:07:57,724 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:07:57,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:57,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-12 02:07:57,932 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:07:57,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:57,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1221822596, now seen corresponding path program 1 times [2023-11-12 02:07:57,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:07:57,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809235522] [2023-11-12 02:07:57,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:57,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:07:57,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:58,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:07:58,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:58,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-12 02:07:58,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:59,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:07:59,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:59,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:07:59,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:59,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:07:59,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:59,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:07:59,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:59,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-12 02:07:59,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:59,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-12 02:07:59,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:59,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-12 02:07:59,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:59,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-12 02:07:59,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:59,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-12 02:07:59,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:59,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-12 02:07:59,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:59,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-12 02:07:59,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:59,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-12 02:07:59,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:59,662 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-12 02:07:59,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:07:59,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809235522] [2023-11-12 02:07:59,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809235522] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:07:59,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [233705866] [2023-11-12 02:07:59,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:59,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:07:59,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:59,665 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:07:59,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-12 02:07:59,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:59,973 INFO L262 TraceCheckSpWp]: Trace formula consists of 895 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-12 02:07:59,978 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:08:00,581 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-11-12 02:08:00,581 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:08:00,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [233705866] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:08:00,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:08:00,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [22] total 36 [2023-11-12 02:08:00,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678174475] [2023-11-12 02:08:00,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:08:00,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-12 02:08:00,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:00,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-12 02:08:00,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=1181, Unknown=0, NotChecked=0, Total=1260 [2023-11-12 02:08:00,585 INFO L87 Difference]: Start difference. First operand 98 states and 122 transitions. Second operand has 16 states, 16 states have (on average 3.5) internal successors, (56), 14 states have internal predecessors, (56), 6 states have call successors, (15), 2 states have call predecessors, (15), 5 states have return successors, (14), 8 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-12 02:08:01,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:08:01,123 INFO L93 Difference]: Finished difference Result 162 states and 208 transitions. [2023-11-12 02:08:01,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-12 02:08:01,124 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.5) internal successors, (56), 14 states have internal predecessors, (56), 6 states have call successors, (15), 2 states have call predecessors, (15), 5 states have return successors, (14), 8 states have call predecessors, (14), 6 states have call successors, (14) Word has length 100 [2023-11-12 02:08:01,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:08:01,127 INFO L225 Difference]: With dead ends: 162 [2023-11-12 02:08:01,127 INFO L226 Difference]: Without dead ends: 109 [2023-11-12 02:08:01,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=119, Invalid=1773, Unknown=0, NotChecked=0, Total=1892 [2023-11-12 02:08:01,130 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 58 mSDsluCounter, 1172 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 1268 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 02:08:01,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 1268 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 02:08:01,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-11-12 02:08:01,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 102. [2023-11-12 02:08:01,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 67 states have (on average 1.164179104477612) internal successors, (78), 68 states have internal predecessors, (78), 24 states have call successors, (24), 9 states have call predecessors, (24), 10 states have return successors, (25), 24 states have call predecessors, (25), 23 states have call successors, (25) [2023-11-12 02:08:01,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 127 transitions. [2023-11-12 02:08:01,142 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 127 transitions. Word has length 100 [2023-11-12 02:08:01,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:08:01,143 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 127 transitions. [2023-11-12 02:08:01,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.5) internal successors, (56), 14 states have internal predecessors, (56), 6 states have call successors, (15), 2 states have call predecessors, (15), 5 states have return successors, (14), 8 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-12 02:08:01,143 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 127 transitions. [2023-11-12 02:08:01,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-12 02:08:01,145 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:01,145 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:08:01,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-12 02:08:01,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:08:01,353 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:08:01,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:01,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1283862210, now seen corresponding path program 1 times [2023-11-12 02:08:01,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:01,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418992622] [2023-11-12 02:08:01,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:01,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:01,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:02,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:08:02,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:02,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-12 02:08:02,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:02,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:08:02,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:02,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:08:02,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:02,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:08:02,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:03,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:08:03,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:03,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-12 02:08:03,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:03,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-12 02:08:03,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:03,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-12 02:08:03,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:03,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-12 02:08:03,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:03,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-12 02:08:03,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:03,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-12 02:08:03,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:03,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-12 02:08:03,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:03,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-12 02:08:03,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:03,229 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-11-12 02:08:03,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:03,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418992622] [2023-11-12 02:08:03,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418992622] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:08:03,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410260602] [2023-11-12 02:08:03,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:03,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:08:03,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:08:03,231 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:08:03,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-12 02:08:03,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:03,688 INFO L262 TraceCheckSpWp]: Trace formula consists of 900 conjuncts, 114 conjunts are in the unsatisfiable core [2023-11-12 02:08:03,695 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:08:04,239 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 43 [2023-11-12 02:08:04,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:08:04,261 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 86 [2023-11-12 02:08:04,356 INFO L322 Elim1Store]: treesize reduction 89, result has 1.1 percent of original size [2023-11-12 02:08:04,357 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 107 treesize of output 68 [2023-11-12 02:08:04,581 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-11-12 02:08:04,581 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:08:04,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1410260602] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:08:04,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:08:04,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [13] total 22 [2023-11-12 02:08:04,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581114642] [2023-11-12 02:08:04,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:08:04,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-12 02:08:04,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:04,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-12 02:08:04,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2023-11-12 02:08:04,588 INFO L87 Difference]: Start difference. First operand 102 states and 127 transitions. Second operand has 14 states, 12 states have (on average 4.083333333333333) internal successors, (49), 11 states have internal predecessors, (49), 6 states have call successors, (15), 2 states have call predecessors, (15), 5 states have return successors, (14), 7 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-12 02:08:05,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:08:05,560 INFO L93 Difference]: Finished difference Result 135 states and 161 transitions. [2023-11-12 02:08:05,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-12 02:08:05,561 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 4.083333333333333) internal successors, (49), 11 states have internal predecessors, (49), 6 states have call successors, (15), 2 states have call predecessors, (15), 5 states have return successors, (14), 7 states have call predecessors, (14), 6 states have call successors, (14) Word has length 100 [2023-11-12 02:08:05,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:08:05,562 INFO L225 Difference]: With dead ends: 135 [2023-11-12 02:08:05,562 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 02:08:05,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 115 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=140, Invalid=730, Unknown=0, NotChecked=0, Total=870 [2023-11-12 02:08:05,564 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 25 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:08:05,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 303 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:08:05,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 02:08:05,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 02:08:05,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:05,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 02:08:05,565 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 100 [2023-11-12 02:08:05,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:08:05,565 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 02:08:05,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 4.083333333333333) internal successors, (49), 11 states have internal predecessors, (49), 6 states have call successors, (15), 2 states have call predecessors, (15), 5 states have return successors, (14), 7 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-12 02:08:05,566 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 02:08:05,566 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 02:08:05,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 02:08:05,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-12 02:08:05,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:08:05,780 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-12 02:08:05,918 INFO L899 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthEXIT(lines 6789 6793) no Hoare annotation was computed. [2023-11-12 02:08:05,918 INFO L899 garLoopResultBuilder]: For program point ensure_string_is_allocated_returnLabel#1(lines 6795 6805) no Hoare annotation was computed. [2023-11-12 02:08:05,918 INFO L899 garLoopResultBuilder]: For program point L6799-1(lines 6799 6800) no Hoare annotation was computed. [2023-11-12 02:08:05,918 INFO L895 garLoopResultBuilder]: At program point L6799(line 6799) the Hoare annotation is: (let ((.cse0 (mod |ensure_string_is_allocated_bounded_length_#in~max_size#1| 18446744073709551616))) (and (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.offset| 0) (<= (+ (mod |ensure_string_is_allocated_bounded_length_~len~1#1| 18446744073709551616) 1) .cse0) (<= (+ (mod |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1| 18446744073709551616) 1) .cse0) (<= (+ 18410715276689353099 |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1|) (* 18446744073709551616 (div (+ 18446744073708317066 |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1|) 18446744073709551616))))) [2023-11-12 02:08:05,919 INFO L899 garLoopResultBuilder]: For program point L6799-5(lines 6799 6800) no Hoare annotation was computed. [2023-11-12 02:08:05,919 INFO L899 garLoopResultBuilder]: For program point L6796-1(line 6796) no Hoare annotation was computed. [2023-11-12 02:08:05,919 INFO L895 garLoopResultBuilder]: At program point L6796(line 6796) the Hoare annotation is: (let ((.cse0 (mod |ensure_string_is_allocated_bounded_length_#in~max_size#1| 18446744073709551616))) (and (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (<= (+ (mod |ensure_string_is_allocated_bounded_length_~len~1#1| 18446744073709551616) 1) .cse0) (<= (+ (mod |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1| 18446744073709551616) 1) .cse0))) [2023-11-12 02:08:05,919 INFO L899 garLoopResultBuilder]: For program point L6799-3(line 6799) no Hoare annotation was computed. [2023-11-12 02:08:05,919 INFO L895 garLoopResultBuilder]: At program point L6799-2(line 6799) the Hoare annotation is: (let ((.cse0 (mod |ensure_string_is_allocated_bounded_length_#in~max_size#1| 18446744073709551616))) (and (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.offset| 0) (<= (+ (mod |ensure_string_is_allocated_bounded_length_~len~1#1| 18446744073709551616) 1) .cse0) (<= (+ (mod |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1| 18446744073709551616) 1) .cse0) (<= (+ 18410715276689353099 |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1|) (* 18446744073709551616 (div (+ 18446744073708317066 |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1|) 18446744073709551616))))) [2023-11-12 02:08:05,919 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6789 6793) the Hoare annotation is: true [2023-11-12 02:08:05,919 INFO L895 garLoopResultBuilder]: At program point L6790(line 6790) the Hoare annotation is: (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) [2023-11-12 02:08:05,919 INFO L899 garLoopResultBuilder]: For program point L6791-1(line 6791) no Hoare annotation was computed. [2023-11-12 02:08:05,920 INFO L895 garLoopResultBuilder]: At program point L6791(line 6791) the Hoare annotation is: (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) [2023-11-12 02:08:05,920 INFO L899 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthFINAL(lines 6789 6793) no Hoare annotation was computed. [2023-11-12 02:08:05,920 INFO L899 garLoopResultBuilder]: For program point L6790-1(line 6790) no Hoare annotation was computed. [2023-11-12 02:08:05,920 INFO L899 garLoopResultBuilder]: For program point bounded_mallocFINAL(lines 6871 6876) no Hoare annotation was computed. [2023-11-12 02:08:05,920 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6871 6876) the Hoare annotation is: true [2023-11-12 02:08:05,920 INFO L899 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6871 6876) no Hoare annotation was computed. [2023-11-12 02:08:05,920 INFO L899 garLoopResultBuilder]: For program point L6872-1(lines 6872 6874) no Hoare annotation was computed. [2023-11-12 02:08:05,920 INFO L895 garLoopResultBuilder]: At program point L6872(lines 6872 6874) the Hoare annotation is: (= |bounded_malloc_#in~size| bounded_malloc_~size) [2023-11-12 02:08:05,920 INFO L899 garLoopResultBuilder]: For program point nondet_boolFINAL(line 261) no Hoare annotation was computed. [2023-11-12 02:08:05,921 INFO L899 garLoopResultBuilder]: For program point nondet_boolEXIT(line 261) no Hoare annotation was computed. [2023-11-12 02:08:05,921 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 261) the Hoare annotation is: true [2023-11-12 02:08:05,921 INFO L899 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2023-11-12 02:08:05,921 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 210 212) the Hoare annotation is: true [2023-11-12 02:08:05,921 INFO L899 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2023-11-12 02:08:05,921 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2023-11-12 02:08:05,921 INFO L899 garLoopResultBuilder]: For program point can_fail_allocatorFINAL(lines 6878 6880) no Hoare annotation was computed. [2023-11-12 02:08:05,921 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6878 6880) the Hoare annotation is: true [2023-11-12 02:08:05,921 INFO L899 garLoopResultBuilder]: For program point can_fail_allocatorEXIT(lines 6878 6880) no Hoare annotation was computed. [2023-11-12 02:08:05,922 INFO L899 garLoopResultBuilder]: For program point L6245-5(line 6245) no Hoare annotation was computed. [2023-11-12 02:08:05,922 INFO L899 garLoopResultBuilder]: For program point aws_string_is_validFINAL(lines 6241 6246) no Hoare annotation was computed. [2023-11-12 02:08:05,922 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6241 6246) the Hoare annotation is: true [2023-11-12 02:08:05,922 INFO L899 garLoopResultBuilder]: For program point aws_string_is_validEXIT(lines 6241 6246) no Hoare annotation was computed. [2023-11-12 02:08:05,922 INFO L899 garLoopResultBuilder]: For program point L6245-2(line 6245) no Hoare annotation was computed. [2023-11-12 02:08:05,922 INFO L899 garLoopResultBuilder]: For program point L6245-3(line 6245) no Hoare annotation was computed. [2023-11-12 02:08:05,922 INFO L899 garLoopResultBuilder]: For program point L6245(line 6245) no Hoare annotation was computed. [2023-11-12 02:08:05,922 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2023-11-12 02:08:05,922 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tFINAL(line 266) no Hoare annotation was computed. [2023-11-12 02:08:05,923 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 266) the Hoare annotation is: true [2023-11-12 02:08:05,923 INFO L899 garLoopResultBuilder]: For program point L7414(lines 7414 7422) no Hoare annotation was computed. [2023-11-12 02:08:05,923 INFO L895 garLoopResultBuilder]: At program point L8884(line 8884) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1#1.base| 0) (= |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1#1.offset| 0)) [2023-11-12 02:08:05,923 INFO L899 garLoopResultBuilder]: For program point L8884-1(lines 8884 8886) no Hoare annotation was computed. [2023-11-12 02:08:05,923 INFO L895 garLoopResultBuilder]: At program point L8884-2(line 8884) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1#1.base| 0) (= |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1#1.offset| 0)) [2023-11-12 02:08:05,923 INFO L895 garLoopResultBuilder]: At program point L8888(line 8888) the Hoare annotation is: false [2023-11-12 02:08:05,923 INFO L895 garLoopResultBuilder]: At program point L8888-1(line 8888) the Hoare annotation is: false [2023-11-12 02:08:05,923 INFO L899 garLoopResultBuilder]: For program point L8888-2(line 8888) no Hoare annotation was computed. [2023-11-12 02:08:05,923 INFO L899 garLoopResultBuilder]: For program point L8880-3(line 8880) no Hoare annotation was computed. [2023-11-12 02:08:05,924 INFO L899 garLoopResultBuilder]: For program point L8880-5(lines 8880 8881) no Hoare annotation was computed. [2023-11-12 02:08:05,924 INFO L899 garLoopResultBuilder]: For program point L8884-3(line 8884) no Hoare annotation was computed. [2023-11-12 02:08:05,924 INFO L902 garLoopResultBuilder]: At program point L8880(line 8880) the Hoare annotation is: true [2023-11-12 02:08:05,924 INFO L899 garLoopResultBuilder]: For program point L8880-1(lines 8880 8881) no Hoare annotation was computed. [2023-11-12 02:08:05,924 INFO L899 garLoopResultBuilder]: For program point L8884-5(lines 8884 8886) no Hoare annotation was computed. [2023-11-12 02:08:05,924 INFO L902 garLoopResultBuilder]: At program point L8880-2(line 8880) the Hoare annotation is: true [2023-11-12 02:08:05,924 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(line 8893) no Hoare annotation was computed. [2023-11-12 02:08:05,924 INFO L899 garLoopResultBuilder]: For program point L7423-1(line 7423) no Hoare annotation was computed. [2023-11-12 02:08:05,926 INFO L895 garLoopResultBuilder]: At program point L7423(line 7423) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1#1.base| 0) (= |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1#1.offset| 0)) [2023-11-12 02:08:05,926 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-12 02:08:05,926 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-12 02:08:05,927 INFO L895 garLoopResultBuilder]: At program point L8889(line 8889) the Hoare annotation is: false [2023-11-12 02:08:05,927 INFO L895 garLoopResultBuilder]: At program point L8889-1(line 8889) the Hoare annotation is: false [2023-11-12 02:08:05,927 INFO L899 garLoopResultBuilder]: For program point L8889-2(line 8889) no Hoare annotation was computed. [2023-11-12 02:08:05,927 INFO L899 garLoopResultBuilder]: For program point L7407(line 7407) no Hoare annotation was computed. [2023-11-12 02:08:05,927 INFO L899 garLoopResultBuilder]: For program point L7407-5(line 7407) no Hoare annotation was computed. [2023-11-12 02:08:05,927 INFO L895 garLoopResultBuilder]: At program point L7407-4(line 7407) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1#1.base| 0) (= |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1#1.offset| 0)) [2023-11-12 02:08:05,928 INFO L899 garLoopResultBuilder]: For program point L7407-3(line 7407) no Hoare annotation was computed. [2023-11-12 02:08:05,928 INFO L895 garLoopResultBuilder]: At program point L7407-2(line 7407) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1#1.base| 0) (= |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1#1.offset| 0)) [2023-11-12 02:08:05,928 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-12 02:08:05,928 INFO L895 garLoopResultBuilder]: At program point L8890(line 8890) the Hoare annotation is: false [2023-11-12 02:08:05,928 INFO L899 garLoopResultBuilder]: For program point L8886-1(line 8886) no Hoare annotation was computed. [2023-11-12 02:08:05,928 INFO L899 garLoopResultBuilder]: For program point L8890-1(line 8890) no Hoare annotation was computed. [2023-11-12 02:08:05,929 INFO L895 garLoopResultBuilder]: At program point L8886(line 8886) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1#1.base| 0) (= |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1#1.offset| 0)) [2023-11-12 02:08:05,929 INFO L895 garLoopResultBuilder]: At program point L7408-2(line 7408) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1#1.base| 0) (= |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1#1.offset| 0)) [2023-11-12 02:08:05,929 INFO L899 garLoopResultBuilder]: For program point L7408(line 7408) no Hoare annotation was computed. [2023-11-12 02:08:05,929 INFO L899 garLoopResultBuilder]: For program point L7408-5(line 7408) no Hoare annotation was computed. [2023-11-12 02:08:05,929 INFO L895 garLoopResultBuilder]: At program point L7408-4(line 7408) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1#1.base| 0))) (or (and .cse0 (= |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1#1.offset| 0)) (and (= |ULTIMATE.start_aws_string_eq_ignore_case_~b#1.offset| 0) (not .cse0) (= |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_b~1#1.base| 0) (<= 0 |ULTIMATE.start_aws_string_eq_ignore_case_~a#1.offset|) (= 0 |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_b~1#1.offset|) (not (= |ULTIMATE.start_aws_string_eq_ignore_case_~a#1.base| 0)) |ULTIMATE.start_aws_string_eq_ignore_case_#t~short693#1| (= |ULTIMATE.start_aws_string_eq_ignore_case_~b#1.base| 0) (<= 0 |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1#1.offset|)))) [2023-11-12 02:08:05,930 INFO L899 garLoopResultBuilder]: For program point L7408-3(line 7408) no Hoare annotation was computed. [2023-11-12 02:08:05,930 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-12 02:08:05,930 INFO L899 garLoopResultBuilder]: For program point L8887(lines 8887 8891) no Hoare annotation was computed. [2023-11-12 02:08:05,930 INFO L899 garLoopResultBuilder]: For program point L7409(lines 7409 7413) no Hoare annotation was computed. [2023-11-12 02:08:05,930 INFO L899 garLoopResultBuilder]: For program point L8879(lines 8879 8892) no Hoare annotation was computed. [2023-11-12 02:08:05,930 INFO L899 garLoopResultBuilder]: For program point aws_string_eq_ignore_case_returnLabel#1(lines 7405 7424) no Hoare annotation was computed. [2023-11-12 02:08:05,931 INFO L899 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2023-11-12 02:08:05,932 INFO L899 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2023-11-12 02:08:05,932 INFO L899 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2023-11-12 02:08:05,932 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2023-11-12 02:08:05,932 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 222 224) the Hoare annotation is: true [2023-11-12 02:08:05,932 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2023-11-12 02:08:05,933 INFO L899 garLoopResultBuilder]: For program point L7973-4(lines 7973 7979) no Hoare annotation was computed. [2023-11-12 02:08:05,933 INFO L899 garLoopResultBuilder]: For program point L7962(lines 7959 7984) no Hoare annotation was computed. [2023-11-12 02:08:05,934 INFO L899 garLoopResultBuilder]: For program point aws_array_eq_ignore_caseFINAL(lines 7954 7984) no Hoare annotation was computed. [2023-11-12 02:08:05,934 INFO L902 garLoopResultBuilder]: At program point L7960-1(line 7960) the Hoare annotation is: true [2023-11-12 02:08:05,935 INFO L902 garLoopResultBuilder]: At program point L7960(line 7960) the Hoare annotation is: true [2023-11-12 02:08:05,935 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 7954 7984) the Hoare annotation is: true [2023-11-12 02:08:05,935 INFO L899 garLoopResultBuilder]: For program point L7974(lines 7974 7978) no Hoare annotation was computed. [2023-11-12 02:08:05,935 INFO L902 garLoopResultBuilder]: At program point L7973-3(lines 7973 7979) the Hoare annotation is: true [2023-11-12 02:08:05,935 INFO L899 garLoopResultBuilder]: For program point aws_array_eq_ignore_caseEXIT(lines 7954 7984) no Hoare annotation was computed. [2023-11-12 02:08:05,936 INFO L899 garLoopResultBuilder]: For program point L7973-2(lines 7973 7979) no Hoare annotation was computed. [2023-11-12 02:08:05,938 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:08:05,940 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:08:05,951 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:08:05 BoogieIcfgContainer [2023-11-12 02:08:05,951 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:08:05,952 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:08:05,952 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:08:05,952 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:08:05,952 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:07:41" (3/4) ... [2023-11-12 02:08:05,954 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 02:08:05,959 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ensure_string_is_allocated_bounded_length [2023-11-12 02:08:05,959 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2023-11-12 02:08:05,960 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2023-11-12 02:08:05,960 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2023-11-12 02:08:05,960 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-12 02:08:05,960 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-12 02:08:05,961 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_eq_ignore_case [2023-11-12 02:08:05,961 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2023-11-12 02:08:05,961 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_is_valid [2023-11-12 02:08:05,979 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-11-12 02:08:05,980 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-12 02:08:05,981 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-12 02:08:05,983 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 02:08:06,258 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:08:06,259 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/witness.yml [2023-11-12 02:08:06,259 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:08:06,260 INFO L158 Benchmark]: Toolchain (without parser) took 29543.33ms. Allocated memory was 153.1MB in the beginning and 413.1MB in the end (delta: 260.0MB). Free memory was 111.0MB in the beginning and 174.9MB in the end (delta: -63.9MB). Peak memory consumption was 194.9MB. Max. memory is 16.1GB. [2023-11-12 02:08:06,260 INFO L158 Benchmark]: CDTParser took 0.69ms. Allocated memory is still 107.0MB. Free memory is still 56.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:08:06,261 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3839.46ms. Allocated memory was 153.1MB in the beginning and 197.1MB in the end (delta: 44.0MB). Free memory was 111.0MB in the beginning and 130.6MB in the end (delta: -19.6MB). Peak memory consumption was 76.9MB. Max. memory is 16.1GB. [2023-11-12 02:08:06,262 INFO L158 Benchmark]: Boogie Procedure Inliner took 220.71ms. Allocated memory is still 197.1MB. Free memory was 130.6MB in the beginning and 121.2MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-12 02:08:06,262 INFO L158 Benchmark]: Boogie Preprocessor took 96.23ms. Allocated memory is still 197.1MB. Free memory was 121.2MB in the beginning and 117.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 02:08:06,262 INFO L158 Benchmark]: RCFGBuilder took 1044.40ms. Allocated memory is still 197.1MB. Free memory was 117.0MB in the beginning and 130.6MB in the end (delta: -13.6MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-11-12 02:08:06,263 INFO L158 Benchmark]: TraceAbstraction took 24026.28ms. Allocated memory was 197.1MB in the beginning and 413.1MB in the end (delta: 216.0MB). Free memory was 129.6MB in the beginning and 195.9MB in the end (delta: -66.3MB). Peak memory consumption was 149.7MB. Max. memory is 16.1GB. [2023-11-12 02:08:06,263 INFO L158 Benchmark]: Witness Printer took 307.94ms. Allocated memory is still 413.1MB. Free memory was 195.9MB in the beginning and 174.9MB in the end (delta: 21.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-12 02:08:06,265 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69ms. Allocated memory is still 107.0MB. Free memory is still 56.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3839.46ms. Allocated memory was 153.1MB in the beginning and 197.1MB in the end (delta: 44.0MB). Free memory was 111.0MB in the beginning and 130.6MB in the end (delta: -19.6MB). Peak memory consumption was 76.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 220.71ms. Allocated memory is still 197.1MB. Free memory was 130.6MB in the beginning and 121.2MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 96.23ms. Allocated memory is still 197.1MB. Free memory was 121.2MB in the beginning and 117.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1044.40ms. Allocated memory is still 197.1MB. Free memory was 117.0MB in the beginning and 130.6MB in the end (delta: -13.6MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * TraceAbstraction took 24026.28ms. Allocated memory was 197.1MB in the beginning and 413.1MB in the end (delta: 216.0MB). Free memory was 129.6MB in the beginning and 195.9MB in the end (delta: -66.3MB). Peak memory consumption was 149.7MB. Max. memory is 16.1GB. * Witness Printer took 307.94ms. Allocated memory is still 413.1MB. Free memory was 195.9MB in the beginning and 174.9MB in the end (delta: 21.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 8556]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8556] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 98 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 23.9s, OverallIterations: 9, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 314 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 264 mSDsluCounter, 6888 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6011 mSDsCounter, 58 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1229 IncrementalHoareTripleChecker+Invalid, 1287 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 58 mSolverCounterUnsat, 877 mSDtfsCounter, 1229 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 986 GetRequests, 765 SyntacticMatches, 2 SemanticMatches, 219 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 696 ImplicationChecksByTransitivity, 5.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=102occurred in iteration=8, InterpolantAutomatonStates: 96, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 13 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 33 LocationsWithAnnotation, 174 PreInvPairs, 191 NumberOfFragments, 215 HoareAnnotationTreeSize, 174 FomulaSimplifications, 6 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 33 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 15.2s InterpolantComputationTime, 1372 NumberOfCodeBlocks, 1372 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1356 ConstructedInterpolants, 0 QuantifiedInterpolants, 3546 SizeOfPredicates, 58 NumberOfNonLiveVariables, 6087 ConjunctsInSsa, 229 ConjunctsInUnsatCore, 16 InterpolantComputations, 9 PerfectInterpolantSequences, 644/740 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 7973]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-11-12 02:08:06,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01550078-f964-4de0-9059-954f0ca8a16c/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE