./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b 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_00261d72-99b7-47b0-9cee-27d621af3f9f/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00261d72-99b7-47b0-9cee-27d621af3f9f/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00261d72-99b7-47b0-9cee-27d621af3f9f/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00261d72-99b7-47b0-9cee-27d621af3f9f/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00261d72-99b7-47b0-9cee-27d621af3f9f/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00261d72-99b7-47b0-9cee-27d621af3f9f/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 6f838ff631dd7d907eee223e4bc065b6ce71a3dd1969d0a88cef9ccdcf3b54d1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:22:12,541 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:22:12,662 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00261d72-99b7-47b0-9cee-27d621af3f9f/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-06 22:22:12,666 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:22:12,667 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:22:12,712 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:22:12,713 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:22:12,714 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:22:12,714 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:22:12,719 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:22:12,721 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:22:12,721 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:22:12,722 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:22:12,723 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:22:12,724 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:22:12,724 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:22:12,724 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:22:12,725 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:22:12,725 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:22:12,726 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:22:12,726 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:22:12,727 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:22:12,748 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:22:12,748 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:22:12,748 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:22:12,749 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:22:12,749 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:22:12,750 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:22:12,750 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:22:12,751 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:22:12,751 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:22:12,751 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:22:12,752 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:22:12,752 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:22:12,752 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:22:12,752 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:22:12,753 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_00261d72-99b7-47b0-9cee-27d621af3f9f/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00261d72-99b7-47b0-9cee-27d621af3f9f/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f838ff631dd7d907eee223e4bc065b6ce71a3dd1969d0a88cef9ccdcf3b54d1 [2023-11-06 22:22:13,067 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:22:13,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:22:13,092 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:22:13,094 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:22:13,094 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:22:13,096 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00261d72-99b7-47b0-9cee-27d621af3f9f/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i [2023-11-06 22:22:16,178 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:22:16,826 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:22:16,826 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00261d72-99b7-47b0-9cee-27d621af3f9f/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i [2023-11-06 22:22:16,870 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00261d72-99b7-47b0-9cee-27d621af3f9f/bin/uautomizer-verify-WvqO1wxjHP/data/4a793b1f5/562ee9e9b22f4b3485d3d034b26df04f/FLAG2aef9c306 [2023-11-06 22:22:16,894 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00261d72-99b7-47b0-9cee-27d621af3f9f/bin/uautomizer-verify-WvqO1wxjHP/data/4a793b1f5/562ee9e9b22f4b3485d3d034b26df04f [2023-11-06 22:22:16,900 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:22:16,904 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:22:16,907 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:22:16,908 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:22:16,914 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:22:16,915 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:22:16" (1/1) ... [2023-11-06 22:22:16,916 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e2c7f03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:16, skipping insertion in model container [2023-11-06 22:22:16,917 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:22:16" (1/1) ... [2023-11-06 22:22:17,047 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:22:17,319 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_00261d72-99b7-47b0-9cee-27d621af3f9f/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4493,4506] [2023-11-06 22:22:17,327 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_00261d72-99b7-47b0-9cee-27d621af3f9f/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4553,4566] [2023-11-06 22:22:18,485 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:22:18,486 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:22:18,486 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:22:18,487 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:22:18,488 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:22:18,502 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:22:18,503 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:22:18,505 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:22:18,505 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:22:18,507 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:22:18,508 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:22:18,509 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:22:18,510 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:22:18,984 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-06 22:22:18,985 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-06 22:22:18,986 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-06 22:22:18,988 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-06 22:22:18,989 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-06 22:22:18,990 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-06 22:22:18,991 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-06 22:22:18,992 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-06 22:22:18,993 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-06 22:22:18,994 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-06 22:22:19,202 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:22:19,202 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:22:19,209 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:22:19,217 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:22:19,331 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:22:19,365 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:22:19,379 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_00261d72-99b7-47b0-9cee-27d621af3f9f/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4493,4506] [2023-11-06 22:22:19,380 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_00261d72-99b7-47b0-9cee-27d621af3f9f/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4553,4566] [2023-11-06 22:22:19,432 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:22:19,433 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:22:19,433 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:22:19,434 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:22:19,436 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:22:19,443 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:22:19,444 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:22:19,445 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:22:19,445 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:22:19,447 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:22:19,448 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:22:19,448 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:22:19,448 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:22:19,486 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-06 22:22:19,487 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-06 22:22:19,488 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-06 22:22:19,489 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-06 22:22:19,490 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-06 22:22:19,491 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-06 22:22:19,491 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-06 22:22:19,492 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-06 22:22:19,493 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-06 22:22:19,493 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-06 22:22:19,524 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:22:19,524 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:22:19,526 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:22:19,531 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:22:19,537 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7775-7786] [2023-11-06 22:22:19,566 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:22:19,902 WARN L672 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:22:19,903 WARN L672 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:22:19,904 WARN L672 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:22:19,904 WARN L672 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:22:19,904 WARN L672 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:22:19,905 WARN L672 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:22:19,905 WARN L672 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:22:19,906 WARN L672 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:22:19,906 WARN L672 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:22:19,906 WARN L672 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:22:19,908 WARN L672 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:22:19,908 WARN L672 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:22:19,909 WARN L672 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:22:19,909 WARN L672 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:22:19,909 WARN L672 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:22:19,917 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:22:19,917 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:19 WrapperNode [2023-11-06 22:22:19,918 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:22:19,919 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:22:19,920 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:22:19,920 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:22:19,928 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:19" (1/1) ... [2023-11-06 22:22:20,031 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:19" (1/1) ... [2023-11-06 22:22:20,129 INFO L138 Inliner]: procedures = 690, calls = 1683, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 655 [2023-11-06 22:22:20,129 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:22:20,131 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:22:20,131 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:22:20,131 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:22:20,141 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:19" (1/1) ... [2023-11-06 22:22:20,141 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:19" (1/1) ... [2023-11-06 22:22:20,158 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:19" (1/1) ... [2023-11-06 22:22:20,159 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:19" (1/1) ... [2023-11-06 22:22:20,216 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:19" (1/1) ... [2023-11-06 22:22:20,225 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:19" (1/1) ... [2023-11-06 22:22:20,245 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:19" (1/1) ... [2023-11-06 22:22:20,256 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:19" (1/1) ... [2023-11-06 22:22:20,268 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:22:20,274 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:22:20,274 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:22:20,274 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:22:20,275 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:19" (1/1) ... [2023-11-06 22:22:20,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:22:20,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00261d72-99b7-47b0-9cee-27d621af3f9f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:22:20,310 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00261d72-99b7-47b0-9cee-27d621af3f9f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:22:20,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00261d72-99b7-47b0-9cee-27d621af3f9f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:22:20,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:22:20,356 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2023-11-06 22:22:20,356 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2023-11-06 22:22:20,357 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2023-11-06 22:22:20,357 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2023-11-06 22:22:20,358 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-06 22:22:20,358 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-06 22:22:20,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:22:20,358 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-06 22:22:20,359 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-06 22:22:20,359 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-06 22:22:20,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-06 22:22:20,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:22:20,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:22:20,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 22:22:20,360 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2023-11-06 22:22:20,360 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2023-11-06 22:22:20,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:22:20,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:22:20,361 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-06 22:22:20,361 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-06 22:22:20,361 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-06 22:22:20,362 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-06 22:22:20,362 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2023-11-06 22:22:20,362 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2023-11-06 22:22:20,362 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:22:20,362 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:22:20,363 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2023-11-06 22:22:20,363 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2023-11-06 22:22:20,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:22:20,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 22:22:20,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-06 22:22:20,363 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2023-11-06 22:22:20,364 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2023-11-06 22:22:20,364 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-06 22:22:20,365 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-06 22:22:20,365 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-06 22:22:20,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-06 22:22:20,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:22:20,365 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2023-11-06 22:22:20,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2023-11-06 22:22:20,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:22:20,660 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:22:20,665 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:22:21,978 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:22:21,990 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:22:21,990 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:22:21,994 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:22:21 BoogieIcfgContainer [2023-11-06 22:22:21,994 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:22:21,997 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:22:21,997 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:22:22,000 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:22:22,001 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:22:16" (1/3) ... [2023-11-06 22:22:22,003 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c57501b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:22:22, skipping insertion in model container [2023-11-06 22:22:22,003 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:19" (2/3) ... [2023-11-06 22:22:22,003 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c57501b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:22:22, skipping insertion in model container [2023-11-06 22:22:22,004 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:22:21" (3/3) ... [2023-11-06 22:22:22,005 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_swap_harness.i [2023-11-06 22:22:22,026 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:22:22,026 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:22:22,117 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:22:22,124 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=LoopsAndPotentialCycles, 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;@46327983, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:22:22,125 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:22:22,130 INFO L276 IsEmpty]: Start isEmpty. Operand has 180 states, 102 states have (on average 1.1666666666666667) internal successors, (119), 103 states have internal predecessors, (119), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2023-11-06 22:22:22,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-06 22:22:22,144 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:22:22,144 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2023-11-06 22:22:22,145 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:22:22,151 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:22:22,151 INFO L85 PathProgramCache]: Analyzing trace with hash 223694820, now seen corresponding path program 1 times [2023-11-06 22:22:22,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:22:22,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338508164] [2023-11-06 22:22:22,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:22,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:22:22,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:22,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:22:22,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:22,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:22:22,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:22,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-06 22:22:22,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:22,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 22:22:22,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:22,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-06 22:22:22,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:23,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-06 22:22:23,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:23,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:22:23,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:23,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:22:23,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:23,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:22:23,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:23,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:22:23,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:23,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:22:23,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:23,147 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-06 22:22:23,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:22:23,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338508164] [2023-11-06 22:22:23,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338508164] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:22:23,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:22:23,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:22:23,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058500220] [2023-11-06 22:22:23,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:22:23,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:22:23,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:22:23,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:22:23,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:22:23,217 INFO L87 Difference]: Start difference. First operand has 180 states, 102 states have (on average 1.1666666666666667) internal successors, (119), 103 states have internal predecessors, (119), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-06 22:22:24,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:22:24,178 INFO L93 Difference]: Finished difference Result 380 states and 580 transitions. [2023-11-06 22:22:24,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:22:24,181 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 69 [2023-11-06 22:22:24,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:22:24,194 INFO L225 Difference]: With dead ends: 380 [2023-11-06 22:22:24,194 INFO L226 Difference]: Without dead ends: 202 [2023-11-06 22:22:24,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:22:24,204 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 50 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-06 22:22:24,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 284 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-06 22:22:24,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2023-11-06 22:22:24,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 175. [2023-11-06 22:22:24,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 98 states have (on average 1.1428571428571428) internal successors, (112), 99 states have internal predecessors, (112), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-06 22:22:24,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 233 transitions. [2023-11-06 22:22:24,279 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 233 transitions. Word has length 69 [2023-11-06 22:22:24,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:22:24,279 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 233 transitions. [2023-11-06 22:22:24,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-06 22:22:24,280 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 233 transitions. [2023-11-06 22:22:24,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-06 22:22:24,284 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:22:24,284 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2023-11-06 22:22:24,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:22:24,285 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:22:24,285 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:22:24,285 INFO L85 PathProgramCache]: Analyzing trace with hash -636522710, now seen corresponding path program 1 times [2023-11-06 22:22:24,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:22:24,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663140737] [2023-11-06 22:22:24,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:24,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:22:24,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:24,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:22:24,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:24,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:22:24,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:24,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-06 22:22:24,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:24,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 22:22:24,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:24,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-06 22:22:24,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:24,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-06 22:22:24,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:24,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:22:24,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:24,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:22:24,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:24,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:22:24,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:24,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:22:24,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:24,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:22:24,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:24,947 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-06 22:22:24,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:22:24,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663140737] [2023-11-06 22:22:24,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663140737] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:22:24,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543250265] [2023-11-06 22:22:24,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:24,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:22:24,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00261d72-99b7-47b0-9cee-27d621af3f9f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:22:24,956 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00261d72-99b7-47b0-9cee-27d621af3f9f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:22:24,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00261d72-99b7-47b0-9cee-27d621af3f9f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:22:25,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:25,468 INFO L262 TraceCheckSpWp]: Trace formula consists of 1991 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:22:25,480 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:22:25,637 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-06 22:22:25,637 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:22:25,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1543250265] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:22:25,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:22:25,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2023-11-06 22:22:25,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134916216] [2023-11-06 22:22:25,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:22:25,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:22:25,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:22:25,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:22:25,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:22:25,641 INFO L87 Difference]: Start difference. First operand 175 states and 233 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-06 22:22:26,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:22:26,078 INFO L93 Difference]: Finished difference Result 315 states and 432 transitions. [2023-11-06 22:22:26,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:22:26,079 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 69 [2023-11-06 22:22:26,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:22:26,087 INFO L225 Difference]: With dead ends: 315 [2023-11-06 22:22:26,088 INFO L226 Difference]: Without dead ends: 177 [2023-11-06 22:22:26,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:22:26,091 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 232 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:22:26,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 661 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:22:26,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2023-11-06 22:22:26,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2023-11-06 22:22:26,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 99 states have (on average 1.1414141414141414) internal successors, (113), 101 states have internal predecessors, (113), 61 states have call successors, (61), 15 states have call predecessors, (61), 16 states have return successors, (68), 60 states have call predecessors, (68), 60 states have call successors, (68) [2023-11-06 22:22:26,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 242 transitions. [2023-11-06 22:22:26,157 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 242 transitions. Word has length 69 [2023-11-06 22:22:26,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:22:26,158 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 242 transitions. [2023-11-06 22:22:26,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-06 22:22:26,158 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 242 transitions. [2023-11-06 22:22:26,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-06 22:22:26,168 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:22:26,168 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2023-11-06 22:22:26,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00261d72-99b7-47b0-9cee-27d621af3f9f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:22:26,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00261d72-99b7-47b0-9cee-27d621af3f9f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:22:26,376 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:22:26,377 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:22:26,377 INFO L85 PathProgramCache]: Analyzing trace with hash -164009474, now seen corresponding path program 1 times [2023-11-06 22:22:26,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:22:26,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923406745] [2023-11-06 22:22:26,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:26,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:22:26,486 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:22:26,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2104969757] [2023-11-06 22:22:26,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:26,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:22:26,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00261d72-99b7-47b0-9cee-27d621af3f9f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:22:26,490 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00261d72-99b7-47b0-9cee-27d621af3f9f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:22:26,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00261d72-99b7-47b0-9cee-27d621af3f9f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:22:27,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:27,010 INFO L262 TraceCheckSpWp]: Trace formula consists of 2132 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 22:22:27,017 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:22:27,092 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-06 22:22:27,093 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:22:27,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:22:27,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923406745] [2023-11-06 22:22:27,093 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:22:27,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104969757] [2023-11-06 22:22:27,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104969757] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:22:27,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:22:27,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:22:27,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403306085] [2023-11-06 22:22:27,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:22:27,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:22:27,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:22:27,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:22:27,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:22:27,097 INFO L87 Difference]: Start difference. First operand 177 states and 242 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-06 22:22:27,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:22:27,606 INFO L93 Difference]: Finished difference Result 326 states and 455 transitions. [2023-11-06 22:22:27,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:22:27,607 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 84 [2023-11-06 22:22:27,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:22:27,609 INFO L225 Difference]: With dead ends: 326 [2023-11-06 22:22:27,609 INFO L226 Difference]: Without dead ends: 189 [2023-11-06 22:22:27,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:22:27,612 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 250 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:22:27,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 986 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-06 22:22:27,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2023-11-06 22:22:27,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2023-11-06 22:22:27,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 105 states have (on average 1.1428571428571428) internal successors, (120), 107 states have internal predecessors, (120), 66 states have call successors, (66), 16 states have call predecessors, (66), 17 states have return successors, (73), 65 states have call predecessors, (73), 65 states have call successors, (73) [2023-11-06 22:22:27,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 259 transitions. [2023-11-06 22:22:27,640 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 259 transitions. Word has length 84 [2023-11-06 22:22:27,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:22:27,641 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 259 transitions. [2023-11-06 22:22:27,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-06 22:22:27,641 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 259 transitions. [2023-11-06 22:22:27,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-06 22:22:27,643 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:22:27,643 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-06 22:22:27,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00261d72-99b7-47b0-9cee-27d621af3f9f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:22:27,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00261d72-99b7-47b0-9cee-27d621af3f9f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:22:27,860 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:22:27,860 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:22:27,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1494755288, now seen corresponding path program 1 times [2023-11-06 22:22:27,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:22:27,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595906263] [2023-11-06 22:22:27,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:27,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:22:27,992 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:22:27,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [540723947] [2023-11-06 22:22:27,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:27,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:22:27,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00261d72-99b7-47b0-9cee-27d621af3f9f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:22:27,994 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00261d72-99b7-47b0-9cee-27d621af3f9f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:22:28,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00261d72-99b7-47b0-9cee-27d621af3f9f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 22:22:28,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:28,784 INFO L262 TraceCheckSpWp]: Trace formula consists of 2414 conjuncts, 258 conjunts are in the unsatisfiable core [2023-11-06 22:22:28,799 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:22:28,841 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-06 22:22:29,501 INFO L322 Elim1Store]: treesize reduction 44, result has 47.0 percent of original size [2023-11-06 22:22:29,502 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 48 [2023-11-06 22:22:30,988 INFO L322 Elim1Store]: treesize reduction 138, result has 35.2 percent of original size [2023-11-06 22:22:30,989 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 111 treesize of output 194 [2023-11-06 22:22:32,789 INFO L322 Elim1Store]: treesize reduction 106, result has 14.5 percent of original size [2023-11-06 22:22:32,789 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 41 treesize of output 39 [2023-11-06 22:22:32,834 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 19 [2023-11-06 22:22:32,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:22:32,879 INFO L322 Elim1Store]: treesize reduction 21, result has 4.5 percent of original size [2023-11-06 22:22:32,880 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 1 [2023-11-06 22:22:32,964 INFO L322 Elim1Store]: treesize reduction 49, result has 2.0 percent of original size [2023-11-06 22:22:32,964 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 43 treesize of output 1 [2023-11-06 22:22:32,987 INFO L322 Elim1Store]: treesize reduction 49, result has 2.0 percent of original size [2023-11-06 22:22:32,987 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 33 treesize of output 1 [2023-11-06 22:22:33,015 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-06 22:22:33,035 INFO L322 Elim1Store]: treesize reduction 96, result has 1.0 percent of original size [2023-11-06 22:22:33,035 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 41 treesize of output 1 [2023-11-06 22:23:32,660 WARN L293 SmtUtils]: Spent 49.56s on a formula simplification. DAG size of input: 442 DAG size of output: 306 (called from [L 319] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-11-06 22:23:32,661 INFO L322 Elim1Store]: treesize reduction 440, result has 56.9 percent of original size [2023-11-06 22:23:32,662 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 20 select indices, 20 select index equivalence classes, 3 disjoint index pairs (out of 190 index pairs), introduced 22 new quantified variables, introduced 209 case distinctions, treesize of input 456 treesize of output 1047 [2023-11-06 22:23:36,056 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:23:36,057 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 362 treesize of output 770