./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_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_9a588432-037d-4751-902f-d0b3e8ea3cf6/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a588432-037d-4751-902f-d0b3e8ea3cf6/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a588432-037d-4751-902f-d0b3e8ea3cf6/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a588432-037d-4751-902f-d0b3e8ea3cf6/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a588432-037d-4751-902f-d0b3e8ea3cf6/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Reach-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a588432-037d-4751-902f-d0b3e8ea3cf6/bin/ukojak-verify-i0I2FZA1j2 --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 Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 971edb75bb0f677639f0c3e5b019bf9afe7575a35e63ddba584727b568db50c6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:50:04,326 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:50:04,444 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a588432-037d-4751-902f-d0b3e8ea3cf6/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Reach-64bit-Kojak_Default.epf [2023-11-21 18:50:04,449 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:50:04,450 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:50:04,474 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:50:04,476 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:50:04,476 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:50:04,477 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:50:04,478 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:50:04,479 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:50:04,479 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:50:04,480 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:50:04,481 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:50:04,481 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:50:04,482 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:50:04,482 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:50:04,483 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:50:04,484 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:50:04,484 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:50:04,485 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:50:04,491 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:50:04,491 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:50:04,492 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:50:04,492 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:50:04,493 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:50:04,493 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:50:04,494 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:50:04,494 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:50:04,495 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:50:04,495 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_9a588432-037d-4751-902f-d0b3e8ea3cf6/bin/ukojak-verify-i0I2FZA1j2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a588432-037d-4751-902f-d0b3e8ea3cf6/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 971edb75bb0f677639f0c3e5b019bf9afe7575a35e63ddba584727b568db50c6 [2023-11-21 18:50:04,806 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:50:04,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:50:04,848 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:50:04,850 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:50:04,852 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:50:04,853 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a588432-037d-4751-902f-d0b3e8ea3cf6/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i [2023-11-21 18:50:08,152 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:50:08,827 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:50:08,831 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a588432-037d-4751-902f-d0b3e8ea3cf6/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i [2023-11-21 18:50:08,896 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a588432-037d-4751-902f-d0b3e8ea3cf6/bin/ukojak-verify-i0I2FZA1j2/data/bf61017b3/43ce0c1a87874fdf9f615a5540b6b880/FLAG0a054dc1e [2023-11-21 18:50:08,918 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a588432-037d-4751-902f-d0b3e8ea3cf6/bin/ukojak-verify-i0I2FZA1j2/data/bf61017b3/43ce0c1a87874fdf9f615a5540b6b880 [2023-11-21 18:50:08,926 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:50:08,929 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:50:08,933 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:50:08,933 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:50:08,940 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:50:08,941 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:50:08" (1/1) ... [2023-11-21 18:50:08,942 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@235cf098 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:08, skipping insertion in model container [2023-11-21 18:50:08,943 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:50:08" (1/1) ... [2023-11-21 18:50:09,092 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:50:09,463 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_9a588432-037d-4751-902f-d0b3e8ea3cf6/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4498,4511] [2023-11-21 18:50:09,473 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_9a588432-037d-4751-902f-d0b3e8ea3cf6/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4558,4571] [2023-11-21 18:50:10,723 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:10,724 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:10,725 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:10,727 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:10,729 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:10,753 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:10,754 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:10,758 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:10,771 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:10,774 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:10,776 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:10,777 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:10,778 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:11,361 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-21 18:50:11,363 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-21 18:50:11,365 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-21 18:50:11,366 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-21 18:50:11,368 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-21 18:50:11,369 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-21 18:50:11,370 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-21 18:50:11,371 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-21 18:50:11,373 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-21 18:50:11,375 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-21 18:50:11,565 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:11,573 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:11,641 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:50:11,710 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:50:11,730 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_9a588432-037d-4751-902f-d0b3e8ea3cf6/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4498,4511] [2023-11-21 18:50:11,731 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_9a588432-037d-4751-902f-d0b3e8ea3cf6/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4558,4571] [2023-11-21 18:50:11,807 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:11,808 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:11,810 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:11,811 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:11,814 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:11,827 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:11,828 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:11,830 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:11,830 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:11,832 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:11,833 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:11,835 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:11,836 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:11,919 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-21 18:50:11,920 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-21 18:50:11,921 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-21 18:50:11,923 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-21 18:50:11,925 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-21 18:50:11,933 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-21 18:50:11,934 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-21 18:50:11,935 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-21 18:50:11,935 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-21 18:50:11,936 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-21 18:50:11,995 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:12,002 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:12,018 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7765-7776] [2023-11-21 18:50:12,048 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:50:12,296 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:50:12,296 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:50:12,296 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:50:12,296 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:50:12,297 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:50:12,297 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:50:12,297 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:50:12,297 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:50:12,297 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:50:12,297 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:50:12,298 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:50:12,298 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:50:12,298 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:50:12,298 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:50:12,298 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:50:12,306 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:50:12,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:12 WrapperNode [2023-11-21 18:50:12,307 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:50:12,308 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:50:12,309 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:50:12,309 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:50:12,317 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:12" (1/1) ... [2023-11-21 18:50:12,431 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:12" (1/1) ... [2023-11-21 18:50:12,546 INFO L138 Inliner]: procedures = 690, calls = 1685, calls flagged for inlining = 51, calls inlined = 10, statements flattened = 687 [2023-11-21 18:50:12,547 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:50:12,547 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:50:12,547 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:50:12,548 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:50:12,558 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:12" (1/1) ... [2023-11-21 18:50:12,558 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:12" (1/1) ... [2023-11-21 18:50:12,614 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:12" (1/1) ... [2023-11-21 18:50:12,614 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:12" (1/1) ... [2023-11-21 18:50:12,653 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:12" (1/1) ... [2023-11-21 18:50:12,658 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:12" (1/1) ... [2023-11-21 18:50:12,667 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:12" (1/1) ... [2023-11-21 18:50:12,673 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:12" (1/1) ... [2023-11-21 18:50:12,683 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:50:12,684 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:50:12,685 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:50:12,685 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:50:12,686 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:12" (1/1) ... [2023-11-21 18:50:12,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:50:12,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a588432-037d-4751-902f-d0b3e8ea3cf6/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:50:12,740 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a588432-037d-4751-902f-d0b3e8ea3cf6/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:50:12,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a588432-037d-4751-902f-d0b3e8ea3cf6/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:50:12,788 INFO L130 BoogieDeclarations]: Found specification of procedure memmove_impl [2023-11-21 18:50:12,788 INFO L138 BoogieDeclarations]: Found implementation of procedure memmove_impl [2023-11-21 18:50:12,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:50:12,788 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2023-11-21 18:50:12,789 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2023-11-21 18:50:12,789 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2023-11-21 18:50:12,790 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2023-11-21 18:50:12,791 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-21 18:50:12,791 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-21 18:50:12,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 18:50:12,792 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-21 18:50:12,792 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-21 18:50:12,792 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 18:50:12,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 18:50:12,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 18:50:12,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:50:12,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 18:50:12,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:50:12,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:50:12,794 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-21 18:50:12,794 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-21 18:50:12,795 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-11-21 18:50:12,795 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-11-21 18:50:12,795 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-21 18:50:12,795 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-21 18:50:12,795 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2023-11-21 18:50:12,795 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2023-11-21 18:50:12,796 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 18:50:12,796 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 18:50:12,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:50:12,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 18:50:12,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 18:50:12,797 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-21 18:50:12,798 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-21 18:50:12,798 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-21 18:50:12,798 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-21 18:50:12,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 18:50:12,798 INFO L130 BoogieDeclarations]: Found specification of procedure my_memmove [2023-11-21 18:50:12,799 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memmove [2023-11-21 18:50:12,799 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_front [2023-11-21 18:50:12,799 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_front [2023-11-21 18:50:12,800 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2023-11-21 18:50:12,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2023-11-21 18:50:12,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:50:13,190 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:50:13,194 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:50:14,598 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:50:14,834 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:50:14,834 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:50:14,836 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:50:14 BoogieIcfgContainer [2023-11-21 18:50:14,837 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:50:14,838 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:50:14,839 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:50:14,851 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:50:14,851 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:50:14" (1/1) ... [2023-11-21 18:50:14,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:50:14,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:50:14,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 155 states and 208 transitions. [2023-11-21 18:50:14,992 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 208 transitions. [2023-11-21 18:50:15,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-21 18:50:15,006 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:50:15,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:50:15,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:50:16,166 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-21 18:50:16,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:50:16,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 157 states and 220 transitions. [2023-11-21 18:50:16,521 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 220 transitions. [2023-11-21 18:50:16,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-21 18:50:16,527 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:50:16,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:50:17,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:50:17,183 INFO L262 TraceCheckSpWp]: Trace formula consists of 2242 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-21 18:50:17,194 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:50:17,368 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-21 18:50:17,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:50:17,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 161 states and 227 transitions. [2023-11-21 18:50:17,805 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 227 transitions. [2023-11-21 18:50:17,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-21 18:50:17,808 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:50:17,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:50:18,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:50:18,394 INFO L262 TraceCheckSpWp]: Trace formula consists of 2374 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-21 18:50:18,404 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:50:18,580 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-11-21 18:50:18,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:50:18,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 168 states and 240 transitions. [2023-11-21 18:50:18,734 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 240 transitions. [2023-11-21 18:50:18,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-21 18:50:18,737 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:50:18,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:50:19,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:50:19,251 INFO L262 TraceCheckSpWp]: Trace formula consists of 2286 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-21 18:50:19,258 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:50:19,344 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-11-21 18:50:19,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:50:19,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 161 states and 227 transitions. [2023-11-21 18:50:19,398 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 227 transitions. [2023-11-21 18:50:19,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-21 18:50:19,407 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:50:19,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:50:19,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:50:20,006 INFO L262 TraceCheckSpWp]: Trace formula consists of 2506 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-21 18:50:20,013 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:50:20,089 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-21 18:50:20,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:50:20,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 164 states and 232 transitions. [2023-11-21 18:50:20,138 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 232 transitions. [2023-11-21 18:50:20,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-21 18:50:20,139 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:50:20,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:50:30,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-11-21 18:50:30,709 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck has thrown an exception: java.lang.UnsupportedOperationException: Solver said unknown at de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:488) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.CFGWalker.runObserver(CFGWalker.java:57) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-21 18:50:30,712 INFO L158 Benchmark]: Toolchain (without parser) took 21782.21ms. Allocated memory was 159.4MB in the beginning and 257.9MB in the end (delta: 98.6MB). Free memory was 121.6MB in the beginning and 159.0MB in the end (delta: -37.3MB). Peak memory consumption was 172.5MB. Max. memory is 16.1GB. [2023-11-21 18:50:30,712 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 130.0MB. Free memory is still 91.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:50:30,713 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3374.94ms. Allocated memory is still 159.4MB. Free memory was 121.6MB in the beginning and 69.2MB in the end (delta: 52.4MB). Peak memory consumption was 71.7MB. Max. memory is 16.1GB. [2023-11-21 18:50:30,714 INFO L158 Benchmark]: Boogie Procedure Inliner took 238.45ms. Allocated memory is still 159.4MB. Free memory was 69.2MB in the beginning and 60.1MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-21 18:50:30,714 INFO L158 Benchmark]: Boogie Preprocessor took 136.30ms. Allocated memory was 159.4MB in the beginning and 207.6MB in the end (delta: 48.2MB). Free memory was 60.1MB in the beginning and 150.6MB in the end (delta: -90.5MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2023-11-21 18:50:30,715 INFO L158 Benchmark]: RCFGBuilder took 2153.04ms. Allocated memory is still 207.6MB. Free memory was 150.6MB in the beginning and 68.9MB in the end (delta: 81.6MB). Peak memory consumption was 82.7MB. Max. memory is 16.1GB. [2023-11-21 18:50:30,716 INFO L158 Benchmark]: CodeCheck took 15872.22ms. Allocated memory was 207.6MB in the beginning and 257.9MB in the end (delta: 50.3MB). Free memory was 68.9MB in the beginning and 159.0MB in the end (delta: -90.0MB). Peak memory consumption was 69.4MB. Max. memory is 16.1GB. [2023-11-21 18:50:30,720 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - ExceptionOrErrorResult: UnsupportedOperationException: Solver said unknown de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: UnsupportedOperationException: Solver said unknown: de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:488) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 130.0MB. Free memory is still 91.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3374.94ms. Allocated memory is still 159.4MB. Free memory was 121.6MB in the beginning and 69.2MB in the end (delta: 52.4MB). Peak memory consumption was 71.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 238.45ms. Allocated memory is still 159.4MB. Free memory was 69.2MB in the beginning and 60.1MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 136.30ms. Allocated memory was 159.4MB in the beginning and 207.6MB in the end (delta: 48.2MB). Free memory was 60.1MB in the beginning and 150.6MB in the end (delta: -90.5MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. * RCFGBuilder took 2153.04ms. Allocated memory is still 207.6MB. Free memory was 150.6MB in the beginning and 68.9MB in the end (delta: 81.6MB). Peak memory consumption was 82.7MB. Max. memory is 16.1GB. * CodeCheck took 15872.22ms. Allocated memory was 207.6MB in the beginning and 257.9MB in the end (delta: 50.3MB). Free memory was 68.9MB in the beginning and 159.0MB in the end (delta: -90.0MB). Peak memory consumption was 69.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 7765]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7765-7776] RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-11-21 18:50:30,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a588432-037d-4751-902f-d0b3e8ea3cf6/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_9a588432-037d-4751-902f-d0b3e8ea3cf6/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a588432-037d-4751-902f-d0b3e8ea3cf6/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a588432-037d-4751-902f-d0b3e8ea3cf6/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a588432-037d-4751-902f-d0b3e8ea3cf6/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a588432-037d-4751-902f-d0b3e8ea3cf6/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Reach-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a588432-037d-4751-902f-d0b3e8ea3cf6/bin/ukojak-verify-i0I2FZA1j2 --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 Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 971edb75bb0f677639f0c3e5b019bf9afe7575a35e63ddba584727b568db50c6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:50:33,526 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:50:33,672 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a588432-037d-4751-902f-d0b3e8ea3cf6/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Reach-64bit-Kojak_Bitvector.epf [2023-11-21 18:50:33,727 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:50:33,728 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:50:33,729 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:50:33,730 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:50:33,731 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:50:33,732 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:50:33,737 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:50:33,738 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:50:33,738 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:50:33,739 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:50:33,740 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:50:33,741 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 18:50:33,741 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 18:50:33,742 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 18:50:33,742 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:50:33,743 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:50:33,744 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:50:33,745 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:50:33,746 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:50:33,746 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:50:33,746 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-21 18:50:33,747 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:50:33,747 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:50:33,748 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:50:33,748 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:50:33,749 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:50:33,749 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 18:50:33,750 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:50:33,751 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:50:33,751 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-21 18:50:33,751 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 18:50:33,752 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_9a588432-037d-4751-902f-d0b3e8ea3cf6/bin/ukojak-verify-i0I2FZA1j2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a588432-037d-4751-902f-d0b3e8ea3cf6/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 971edb75bb0f677639f0c3e5b019bf9afe7575a35e63ddba584727b568db50c6 [2023-11-21 18:50:34,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:50:34,214 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:50:34,218 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:50:34,219 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:50:34,220 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:50:34,222 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a588432-037d-4751-902f-d0b3e8ea3cf6/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i [2023-11-21 18:50:37,514 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:50:38,145 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:50:38,146 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a588432-037d-4751-902f-d0b3e8ea3cf6/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i [2023-11-21 18:50:38,196 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a588432-037d-4751-902f-d0b3e8ea3cf6/bin/ukojak-verify-i0I2FZA1j2/data/6ba6a5f0c/8aaf9b1ef6c5488f83e8dc7141c38a7f/FLAG853626283 [2023-11-21 18:50:38,215 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a588432-037d-4751-902f-d0b3e8ea3cf6/bin/ukojak-verify-i0I2FZA1j2/data/6ba6a5f0c/8aaf9b1ef6c5488f83e8dc7141c38a7f [2023-11-21 18:50:38,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:50:38,223 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:50:38,227 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:50:38,227 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:50:38,232 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:50:38,234 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:50:38" (1/1) ... [2023-11-21 18:50:38,235 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@753f4e68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:38, skipping insertion in model container [2023-11-21 18:50:38,235 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:50:38" (1/1) ... [2023-11-21 18:50:38,418 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:50:38,730 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_9a588432-037d-4751-902f-d0b3e8ea3cf6/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4498,4511] [2023-11-21 18:50:38,739 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_9a588432-037d-4751-902f-d0b3e8ea3cf6/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4558,4571] [2023-11-21 18:50:39,817 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:39,818 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:39,819 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:39,819 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:39,820 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:39,835 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:39,836 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:39,838 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:39,838 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:39,840 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:39,842 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:39,842 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:39,843 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:40,246 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-21 18:50:40,248 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-21 18:50:40,249 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-21 18:50:40,251 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-21 18:50:40,253 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-21 18:50:40,254 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-21 18:50:40,255 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-21 18:50:40,255 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-21 18:50:40,256 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-21 18:50:40,257 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-21 18:50:40,507 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:40,527 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:40,612 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:50:40,683 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-21 18:50:40,731 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:50:40,736 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_9a588432-037d-4751-902f-d0b3e8ea3cf6/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4498,4511] [2023-11-21 18:50:40,737 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_9a588432-037d-4751-902f-d0b3e8ea3cf6/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4558,4571] [2023-11-21 18:50:40,788 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:40,788 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:40,789 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:40,789 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:40,790 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:40,796 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:40,797 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:40,798 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:40,799 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:40,800 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:40,800 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:40,801 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:40,801 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:40,860 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-21 18:50:40,861 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-21 18:50:40,862 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-21 18:50:40,863 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-21 18:50:40,864 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-21 18:50:40,865 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-21 18:50:40,865 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-21 18:50:40,866 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-21 18:50:40,867 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-21 18:50:40,867 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-21 18:50:40,894 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:40,899 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:40,924 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:50:40,939 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:50:40,952 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_9a588432-037d-4751-902f-d0b3e8ea3cf6/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4498,4511] [2023-11-21 18:50:40,953 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_9a588432-037d-4751-902f-d0b3e8ea3cf6/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4558,4571] [2023-11-21 18:50:40,993 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:40,994 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:40,994 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:40,995 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:40,995 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:41,001 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:41,001 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:41,002 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:41,002 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:41,003 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:41,004 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:41,004 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:41,005 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:41,060 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-21 18:50:41,061 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-21 18:50:41,061 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-21 18:50:41,062 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-21 18:50:41,063 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-21 18:50:41,063 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-21 18:50:41,063 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-21 18:50:41,064 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-21 18:50:41,067 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-21 18:50:41,068 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-21 18:50:41,111 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:41,115 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 18:50:41,132 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7765-7776] [2023-11-21 18:50:41,158 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:50:41,383 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:50:41,383 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:50:41,383 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:50:41,384 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:50:41,384 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:50:41,384 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:50:41,384 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:50:41,384 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:50:41,384 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:50:41,385 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:50:41,385 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:50:41,385 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:50:41,385 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:50:41,385 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:50:41,385 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:50:41,395 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:50:41,396 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:41 WrapperNode [2023-11-21 18:50:41,396 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:50:41,398 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:50:41,398 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:50:41,398 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:50:41,406 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:41" (1/1) ... [2023-11-21 18:50:41,515 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:41" (1/1) ... [2023-11-21 18:50:41,637 INFO L138 Inliner]: procedures = 710, calls = 1685, calls flagged for inlining = 51, calls inlined = 10, statements flattened = 684 [2023-11-21 18:50:41,637 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:50:41,638 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:50:41,638 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:50:41,638 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:50:41,650 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:41" (1/1) ... [2023-11-21 18:50:41,650 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:41" (1/1) ... [2023-11-21 18:50:41,676 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:41" (1/1) ... [2023-11-21 18:50:41,677 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:41" (1/1) ... [2023-11-21 18:50:41,753 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:41" (1/1) ... [2023-11-21 18:50:41,771 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:41" (1/1) ... [2023-11-21 18:50:41,781 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:41" (1/1) ... [2023-11-21 18:50:41,787 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:41" (1/1) ... [2023-11-21 18:50:41,812 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:50:41,813 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:50:41,813 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:50:41,813 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:50:41,814 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:41" (1/1) ... [2023-11-21 18:50:41,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:50:41,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a588432-037d-4751-902f-d0b3e8ea3cf6/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:50:41,854 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a588432-037d-4751-902f-d0b3e8ea3cf6/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:50:41,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a588432-037d-4751-902f-d0b3e8ea3cf6/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:50:41,899 INFO L130 BoogieDeclarations]: Found specification of procedure memmove_impl [2023-11-21 18:50:41,899 INFO L138 BoogieDeclarations]: Found implementation of procedure memmove_impl [2023-11-21 18:50:41,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:50:41,899 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2023-11-21 18:50:41,899 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2023-11-21 18:50:41,900 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2023-11-21 18:50:41,900 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2023-11-21 18:50:41,900 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-21 18:50:41,900 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-21 18:50:41,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 18:50:41,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-21 18:50:41,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2023-11-21 18:50:41,902 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-21 18:50:41,902 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-21 18:50:41,902 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 18:50:41,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 18:50:41,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 18:50:41,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:50:41,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 18:50:41,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:50:41,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:50:41,903 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-21 18:50:41,904 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-21 18:50:41,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-21 18:50:41,904 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-11-21 18:50:41,904 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-11-21 18:50:41,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2023-11-21 18:50:41,905 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-21 18:50:41,906 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-21 18:50:41,906 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2023-11-21 18:50:41,906 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2023-11-21 18:50:41,906 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 18:50:41,906 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 18:50:41,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:50:41,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 18:50:41,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2023-11-21 18:50:41,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-21 18:50:41,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 18:50:41,907 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-21 18:50:41,907 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-21 18:50:41,907 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-21 18:50:41,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-21 18:50:41,908 INFO L130 BoogieDeclarations]: Found specification of procedure my_memmove [2023-11-21 18:50:41,908 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memmove [2023-11-21 18:50:41,908 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_front [2023-11-21 18:50:41,908 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_front [2023-11-21 18:50:41,908 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2023-11-21 18:50:41,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2023-11-21 18:50:42,344 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:50:42,347 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:50:45,030 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:50:45,433 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:50:45,434 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:50:45,436 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:50:45 BoogieIcfgContainer [2023-11-21 18:50:45,436 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:50:45,438 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:50:45,438 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:50:45,451 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:50:45,452 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:50:45" (1/1) ... [2023-11-21 18:50:45,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:50:45,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:50:45,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 154 states and 207 transitions. [2023-11-21 18:50:45,574 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 207 transitions. [2023-11-21 18:50:45,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-21 18:50:45,583 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:50:45,584 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:50:45,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a588432-037d-4751-902f-d0b3e8ea3cf6/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:50:45,587 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a588432-037d-4751-902f-d0b3e8ea3cf6/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:50:45,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a588432-037d-4751-902f-d0b3e8ea3cf6/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-21 18:50:46,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:50:46,282 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:50:47,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:50:47,505 INFO L262 TraceCheckSpWp]: Trace formula consists of 1305 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:50:47,514 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:50:47,744 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-21 18:50:47,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a588432-037d-4751-902f-d0b3e8ea3cf6/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-21 18:50:51,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 18:50:52,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:50:52,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 156 states and 219 transitions. [2023-11-21 18:50:52,448 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 219 transitions. [2023-11-21 18:50:52,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-21 18:50:52,453 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:50:52,454 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:50:52,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a588432-037d-4751-902f-d0b3e8ea3cf6/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:50:52,455 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a588432-037d-4751-902f-d0b3e8ea3cf6/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:50:52,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a588432-037d-4751-902f-d0b3e8ea3cf6/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-21 18:50:53,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:50:53,153 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:50:53,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:50:54,060 INFO L262 TraceCheckSpWp]: Trace formula consists of 1411 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 18:50:54,067 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:50:54,509 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-21 18:50:54,517 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a588432-037d-4751-902f-d0b3e8ea3cf6/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-11-21 18:50:54,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a588432-037d-4751-902f-d0b3e8ea3cf6/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-21 18:50:55,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:50:55,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 160 states and 225 transitions. [2023-11-21 18:50:55,130 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 225 transitions. [2023-11-21 18:50:55,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-21 18:50:55,133 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:50:55,133 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:50:55,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a588432-037d-4751-902f-d0b3e8ea3cf6/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:50:55,137 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a588432-037d-4751-902f-d0b3e8ea3cf6/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:50:55,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a588432-037d-4751-902f-d0b3e8ea3cf6/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-21 18:50:55,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:50:55,865 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:50:56,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:50:56,901 INFO L262 TraceCheckSpWp]: Trace formula consists of 1517 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-21 18:50:56,909 INFO L285 TraceCheckSpWp]: Computing forward predicates...