./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd5cdc8-2cc9-41e5-bd1d-604f46edf11f/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd5cdc8-2cc9-41e5-bd1d-604f46edf11f/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd5cdc8-2cc9-41e5-bd1d-604f46edf11f/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd5cdc8-2cc9-41e5-bd1d-604f46edf11f/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd5cdc8-2cc9-41e5-bd1d-604f46edf11f/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd5cdc8-2cc9-41e5-bd1d-604f46edf11f/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 624e111eb11fc6cb53be17248f0e61e18bd8cc958dfb511134351ecf4f085f78 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:07:23,511 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:07:23,584 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd5cdc8-2cc9-41e5-bd1d-604f46edf11f/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-21 22:07:23,590 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:07:23,591 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:07:23,620 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:07:23,621 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:07:23,622 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:07:23,623 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:07:23,623 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:07:23,624 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:07:23,625 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:07:23,626 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:07:23,626 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:07:23,627 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:07:23,628 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:07:23,628 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:07:23,629 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:07:23,629 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:07:23,630 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:07:23,630 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:07:23,631 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:07:23,632 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:07:23,632 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:07:23,633 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:07:23,633 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:07:23,633 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:07:23,634 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:07:23,634 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:07:23,635 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:07:23,635 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:07:23,636 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:07:23,636 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:07:23,636 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:07:23,637 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:07:23,637 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:07:23,638 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:07:23,638 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:07:23,639 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:07:23,639 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_9cd5cdc8-2cc9-41e5-bd1d-604f46edf11f/bin/uautomizer-verify-bycVGegfSx/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd5cdc8-2cc9-41e5-bd1d-604f46edf11f/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 624e111eb11fc6cb53be17248f0e61e18bd8cc958dfb511134351ecf4f085f78 [2023-11-21 22:07:23,945 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:07:23,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:07:23,983 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:07:23,986 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:07:23,986 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:07:23,988 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd5cdc8-2cc9-41e5-bd1d-604f46edf11f/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i [2023-11-21 22:07:27,081 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:07:27,669 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:07:27,670 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd5cdc8-2cc9-41e5-bd1d-604f46edf11f/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i [2023-11-21 22:07:27,712 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd5cdc8-2cc9-41e5-bd1d-604f46edf11f/bin/uautomizer-verify-bycVGegfSx/data/416dabab5/22df69a5d42b4f92830114327495a880/FLAG7800f7372 [2023-11-21 22:07:27,731 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd5cdc8-2cc9-41e5-bd1d-604f46edf11f/bin/uautomizer-verify-bycVGegfSx/data/416dabab5/22df69a5d42b4f92830114327495a880 [2023-11-21 22:07:27,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:07:27,742 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:07:27,744 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:07:27,744 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:07:27,750 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:07:27,752 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:07:27" (1/1) ... [2023-11-21 22:07:27,753 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18eca0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:27, skipping insertion in model container [2023-11-21 22:07:27,754 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:07:27" (1/1) ... [2023-11-21 22:07:27,880 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:07:28,179 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_9cd5cdc8-2cc9-41e5-bd1d-604f46edf11f/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4495,4508] [2023-11-21 22:07:28,188 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_9cd5cdc8-2cc9-41e5-bd1d-604f46edf11f/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4555,4568] [2023-11-21 22:07:29,440 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:07:29,441 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:07:29,442 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:07:29,443 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:07:29,444 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:07:29,473 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:07:29,474 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:07:29,477 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:07:29,478 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:07:29,990 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-21 22:07:29,992 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-21 22:07:29,994 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-21 22:07:29,998 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-21 22:07:30,005 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-21 22:07:30,006 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-21 22:07:30,007 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-21 22:07:30,008 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-21 22:07:30,012 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-21 22:07:30,016 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-21 22:07:30,369 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:07:30,380 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:07:30,502 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:07:30,584 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:07:30,610 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_9cd5cdc8-2cc9-41e5-bd1d-604f46edf11f/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4495,4508] [2023-11-21 22:07:30,611 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_9cd5cdc8-2cc9-41e5-bd1d-604f46edf11f/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4555,4568] [2023-11-21 22:07:30,665 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:07:30,666 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:07:30,666 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:07:30,668 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:07:30,669 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:07:30,680 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:07:30,681 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:07:30,683 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:07:30,684 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:07:30,745 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-21 22:07:30,746 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-21 22:07:30,747 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-21 22:07:30,748 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-21 22:07:30,752 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-21 22:07:30,752 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-21 22:07:30,753 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-21 22:07:30,753 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-21 22:07:30,754 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-21 22:07:30,760 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-21 22:07:30,872 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8291] [2023-11-21 22:07:30,874 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:07:30,875 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:07:30,889 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8777-8788] [2023-11-21 22:07:30,943 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:07:31,231 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:07:31,231 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:07:31,232 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:07:31,232 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:07:31,232 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:07:31,232 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:07:31,233 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:07:31,233 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:07:31,233 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:07:31,234 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:07:31,234 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:07:31,234 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:07:31,234 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:07:31,234 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:07:31,235 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:07:31,236 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:07:31,236 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:07:31,236 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:07:31,245 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:07:31,245 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:31 WrapperNode [2023-11-21 22:07:31,246 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:07:31,247 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:07:31,247 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:07:31,247 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:07:31,256 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:31" (1/1) ... [2023-11-21 22:07:31,414 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:31" (1/1) ... [2023-11-21 22:07:31,520 INFO L138 Inliner]: procedures = 690, calls = 2622, calls flagged for inlining = 62, calls inlined = 9, statements flattened = 855 [2023-11-21 22:07:31,521 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:07:31,522 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:07:31,522 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:07:31,523 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:07:31,535 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:31" (1/1) ... [2023-11-21 22:07:31,535 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:31" (1/1) ... [2023-11-21 22:07:31,549 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:31" (1/1) ... [2023-11-21 22:07:31,660 INFO L187 HeapSplitter]: Split 556 memory accesses to 8 slices as follows [2, 256, 236, 2, 6, 43, 8, 3] [2023-11-21 22:07:31,661 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:31" (1/1) ... [2023-11-21 22:07:31,661 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:31" (1/1) ... [2023-11-21 22:07:31,719 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:31" (1/1) ... [2023-11-21 22:07:31,738 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:31" (1/1) ... [2023-11-21 22:07:31,747 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:31" (1/1) ... [2023-11-21 22:07:31,768 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:31" (1/1) ... [2023-11-21 22:07:31,779 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:07:31,780 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:07:31,780 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:07:31,780 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:07:31,781 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:31" (1/1) ... [2023-11-21 22:07:31,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:07:31,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd5cdc8-2cc9-41e5-bd1d-604f46edf11f/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:07:31,813 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd5cdc8-2cc9-41e5-bd1d-604f46edf11f/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:07:31,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd5cdc8-2cc9-41e5-bd1d-604f46edf11f/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:07:31,857 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2023-11-21 22:07:31,857 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2023-11-21 22:07:31,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:07:31,858 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-21 22:07:31,859 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-21 22:07:31,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-21 22:07:31,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-21 22:07:31,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-21 22:07:31,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-21 22:07:31,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-21 22:07:31,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-21 22:07:31,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-21 22:07:31,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-21 22:07:31,861 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 22:07:31,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 22:07:31,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:07:31,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:07:31,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-21 22:07:31,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-21 22:07:31,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-21 22:07:31,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-21 22:07:31,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-21 22:07:31,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-21 22:07:31,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-21 22:07:31,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-21 22:07:31,863 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2023-11-21 22:07:31,863 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2023-11-21 22:07:31,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:07:31,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:07:31,864 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-21 22:07:31,864 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-21 22:07:31,864 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-11-21 22:07:31,864 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-11-21 22:07:31,864 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:07:31,865 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:07:31,865 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2023-11-21 22:07:31,866 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2023-11-21 22:07:31,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:07:31,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-21 22:07:31,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-21 22:07:31,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-21 22:07:31,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-21 22:07:31,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-21 22:07:31,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-21 22:07:31,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-21 22:07:31,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-21 22:07:31,867 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_write [2023-11-21 22:07:31,868 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_write [2023-11-21 22:07:31,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-21 22:07:31,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-21 22:07:31,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-21 22:07:31,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-21 22:07:31,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-21 22:07:31,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-21 22:07:31,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-21 22:07:31,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-21 22:07:31,869 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-21 22:07:31,869 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-21 22:07:31,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-21 22:07:31,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-21 22:07:31,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-21 22:07:31,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-21 22:07:31,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-21 22:07:31,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-21 22:07:31,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-21 22:07:31,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-21 22:07:31,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:07:31,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-21 22:07:31,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-21 22:07:31,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-21 22:07:31,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-21 22:07:31,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-21 22:07:31,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-21 22:07:31,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-21 22:07:32,223 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:07:32,226 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:07:33,737 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:07:34,269 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:07:34,269 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:07:34,271 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:07:34 BoogieIcfgContainer [2023-11-21 22:07:34,271 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:07:34,274 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:07:34,274 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:07:34,277 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:07:34,277 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:07:27" (1/3) ... [2023-11-21 22:07:34,278 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e74d90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:07:34, skipping insertion in model container [2023-11-21 22:07:34,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:31" (2/3) ... [2023-11-21 22:07:34,279 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e74d90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:07:34, skipping insertion in model container [2023-11-21 22:07:34,279 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:07:34" (3/3) ... [2023-11-21 22:07:34,285 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_u8_harness.i [2023-11-21 22:07:34,305 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:07:34,306 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:07:34,366 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:07:34,379 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;@77064833, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:07:34,379 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:07:34,386 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 52 states have (on average 1.1923076923076923) internal successors, (62), 53 states have internal predecessors, (62), 34 states have call successors, (34), 10 states have call predecessors, (34), 10 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-21 22:07:34,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-21 22:07:34,404 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:07:34,405 INFO L195 NwaCegarLoop]: trace histogram [6, 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] [2023-11-21 22:07:34,405 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:07:34,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:07:34,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1487827690, now seen corresponding path program 1 times [2023-11-21 22:07:34,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:07:34,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204306113] [2023-11-21 22:07:34,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:07:34,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:07:38,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:07:53,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:07:53,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:07:53,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:07:53,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:07:53,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-21 22:07:53,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:07:53,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:07:53,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:07:53,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-21 22:07:53,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:07:54,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-21 22:07:54,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:07:54,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-21 22:07:54,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:07:54,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-21 22:07:54,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:07:54,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-21 22:07:54,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:07:54,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-21 22:07:54,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:07:54,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-21 22:07:54,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:07:54,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-21 22:07:54,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:07:55,475 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-21 22:07:55,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:07:55,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204306113] [2023-11-21 22:07:55,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204306113] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:07:55,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1397130627] [2023-11-21 22:07:55,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:07:55,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:07:55,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd5cdc8-2cc9-41e5-bd1d-604f46edf11f/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:07:55,485 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd5cdc8-2cc9-41e5-bd1d-604f46edf11f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:07:55,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cd5cdc8-2cc9-41e5-bd1d-604f46edf11f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 22:07:57,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:07:57,620 INFO L262 TraceCheckSpWp]: Trace formula consists of 2619 conjuncts, 131 conjunts are in the unsatisfiable core [2023-11-21 22:07:57,649 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:07:57,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 1 [2023-11-21 22:07:58,105 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-21 22:07:58,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 1 [2023-11-21 22:08:05,858 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 22:08:05,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 25 treesize of output 37