./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_init_dynamic_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_fa2d18c7-ebf3-4715-8ddb-7b5219277904/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2d18c7-ebf3-4715-8ddb-7b5219277904/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2d18c7-ebf3-4715-8ddb-7b5219277904/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2d18c7-ebf3-4715-8ddb-7b5219277904/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_init_dynamic_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2d18c7-ebf3-4715-8ddb-7b5219277904/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2d18c7-ebf3-4715-8ddb-7b5219277904/bin/utaipan-verify-mE87zJ7Ire --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ffbf3b1479afd9aaa2ec45fcd2782998a39316f97238379433376f7ba5094eb5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:28:04,970 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:28:05,083 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2d18c7-ebf3-4715-8ddb-7b5219277904/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:28:05,091 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:28:05,092 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:28:05,139 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:28:05,140 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:28:05,142 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:28:05,143 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:28:05,149 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:28:05,150 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:28:05,150 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:28:05,151 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:28:05,153 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:28:05,154 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:28:05,154 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:28:05,154 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:28:05,155 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:28:05,156 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:28:05,156 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:28:05,157 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:28:05,158 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:28:05,159 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:28:05,160 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:28:05,160 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:28:05,161 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:28:05,161 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:28:05,162 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:28:05,162 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:28:05,163 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:28:05,164 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:28:05,165 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:28:05,165 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:28:05,165 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:28:05,165 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:28:05,166 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:28:05,166 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:28:05,167 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:28:05,167 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:28:05,167 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:28:05,168 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:28:05,168 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:28:05,168 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:28:05,169 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:28:05,169 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_fa2d18c7-ebf3-4715-8ddb-7b5219277904/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2d18c7-ebf3-4715-8ddb-7b5219277904/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ffbf3b1479afd9aaa2ec45fcd2782998a39316f97238379433376f7ba5094eb5 [2023-11-23 21:28:05,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:28:05,544 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:28:05,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:28:05,551 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:28:05,552 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:28:05,554 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2d18c7-ebf3-4715-8ddb-7b5219277904/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/aws-c-common/aws_array_list_init_dynamic_harness.i [2023-11-23 21:28:08,713 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:28:09,204 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:28:09,208 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2d18c7-ebf3-4715-8ddb-7b5219277904/sv-benchmarks/c/aws-c-common/aws_array_list_init_dynamic_harness.i [2023-11-23 21:28:09,252 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2d18c7-ebf3-4715-8ddb-7b5219277904/bin/utaipan-verify-mE87zJ7Ire/data/4991cad45/9c079ce064d54d059243d00634e1b86c/FLAG311a480da [2023-11-23 21:28:09,274 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2d18c7-ebf3-4715-8ddb-7b5219277904/bin/utaipan-verify-mE87zJ7Ire/data/4991cad45/9c079ce064d54d059243d00634e1b86c [2023-11-23 21:28:09,283 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:28:09,285 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:28:09,290 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:28:09,290 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:28:09,296 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:28:09,297 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:28:09" (1/1) ... [2023-11-23 21:28:09,298 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@445f6400 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:09, skipping insertion in model container [2023-11-23 21:28:09,298 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:28:09" (1/1) ... [2023-11-23 21:28:09,425 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:28:09,829 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_fa2d18c7-ebf3-4715-8ddb-7b5219277904/sv-benchmarks/c/aws-c-common/aws_array_list_init_dynamic_harness.i[4501,4514] [2023-11-23 21:28:09,839 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_fa2d18c7-ebf3-4715-8ddb-7b5219277904/sv-benchmarks/c/aws-c-common/aws_array_list_init_dynamic_harness.i[4561,4574] [2023-11-23 21:28:10,994 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:28:11,000 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:28:11,001 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:28:11,002 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:28:11,003 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:28:11,018 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:28:11,019 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:28:11,021 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:28:11,022 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:28:11,024 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:28:11,026 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:28:11,026 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:28:11,027 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:28:11,580 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 21:28:11,582 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 21:28:11,583 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 21:28:11,585 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 21:28:11,587 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 21:28:11,588 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 21:28:11,589 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 21:28:11,589 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 21:28:11,590 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 21:28:11,591 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 21:28:11,770 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:28:11,779 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:28:11,842 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:28:11,878 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:28:11,894 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_fa2d18c7-ebf3-4715-8ddb-7b5219277904/sv-benchmarks/c/aws-c-common/aws_array_list_init_dynamic_harness.i[4501,4514] [2023-11-23 21:28:11,894 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_fa2d18c7-ebf3-4715-8ddb-7b5219277904/sv-benchmarks/c/aws-c-common/aws_array_list_init_dynamic_harness.i[4561,4574] [2023-11-23 21:28:12,013 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:28:12,013 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:28:12,014 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:28:12,014 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:28:12,015 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:28:12,022 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:28:12,023 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:28:12,026 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:28:12,027 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:28:12,028 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:28:12,030 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:28:12,033 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:28:12,033 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:28:12,093 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 21:28:12,094 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 21:28:12,097 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 21:28:12,105 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 21:28:12,107 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 21:28:12,108 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 21:28:12,109 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 21:28:12,110 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 21:28:12,110 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 21:28:12,111 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 21:28:12,138 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:28:12,146 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:28:12,162 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7529-7540] [2023-11-23 21:28:12,194 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:28:12,433 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:28:12,434 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:28:12,434 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:28:12,434 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:28:12,434 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:28:12,434 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:28:12,434 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:28:12,435 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:28:12,435 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:28:12,435 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:28:12,435 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:28:12,435 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:28:12,435 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:28:12,436 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:28:12,436 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:28:12,443 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:28:12,444 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:12 WrapperNode [2023-11-23 21:28:12,444 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:28:12,445 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:28:12,445 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:28:12,446 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:28:12,453 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:12" (1/1) ... [2023-11-23 21:28:12,551 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:12" (1/1) ... [2023-11-23 21:28:12,631 INFO L138 Inliner]: procedures = 689, calls = 1562, calls flagged for inlining = 47, calls inlined = 6, statements flattened = 596 [2023-11-23 21:28:12,631 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:28:12,632 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:28:12,632 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:28:12,633 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:28:12,642 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:12" (1/1) ... [2023-11-23 21:28:12,644 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:12" (1/1) ... [2023-11-23 21:28:12,654 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:12" (1/1) ... [2023-11-23 21:28:12,664 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:12" (1/1) ... [2023-11-23 21:28:12,709 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:12" (1/1) ... [2023-11-23 21:28:12,732 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:12" (1/1) ... [2023-11-23 21:28:12,738 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:12" (1/1) ... [2023-11-23 21:28:12,766 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:12" (1/1) ... [2023-11-23 21:28:12,774 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:28:12,775 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:28:12,775 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:28:12,775 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:28:12,776 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:12" (1/1) ... [2023-11-23 21:28:12,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:28:12,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2d18c7-ebf3-4715-8ddb-7b5219277904/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:28:12,809 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2d18c7-ebf3-4715-8ddb-7b5219277904/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:28:12,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2d18c7-ebf3-4715-8ddb-7b5219277904/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:28:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2023-11-23 21:28:12,853 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2023-11-23 21:28:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:28:12,854 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2023-11-23 21:28:12,854 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2023-11-23 21:28:12,855 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-23 21:28:12,855 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-23 21:28:12,856 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2023-11-23 21:28:12,856 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2023-11-23 21:28:12,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:28:12,856 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-23 21:28:12,856 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-23 21:28:12,857 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 21:28:12,857 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 21:28:12,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:28:12,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:28:12,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:28:12,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:28:12,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:28:12,858 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-23 21:28:12,859 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-23 21:28:12,859 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-23 21:28:12,859 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-23 21:28:12,859 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2023-11-23 21:28:12,859 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2023-11-23 21:28:12,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 21:28:12,860 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 21:28:12,860 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:28:12,860 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:28:12,860 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2023-11-23 21:28:12,861 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2023-11-23 21:28:12,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:28:12,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:28:12,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:28:12,862 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-23 21:28:12,862 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-23 21:28:12,862 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-23 21:28:12,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-23 21:28:12,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:28:12,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:28:13,183 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:28:13,187 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:28:14,053 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:28:14,224 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:28:14,224 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-23 21:28:14,226 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:28:14 BoogieIcfgContainer [2023-11-23 21:28:14,226 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:28:14,229 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:28:14,229 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:28:14,233 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:28:14,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:28:09" (1/3) ... [2023-11-23 21:28:14,234 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3708d76b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:28:14, skipping insertion in model container [2023-11-23 21:28:14,234 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:12" (2/3) ... [2023-11-23 21:28:14,234 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3708d76b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:28:14, skipping insertion in model container [2023-11-23 21:28:14,235 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:28:14" (3/3) ... [2023-11-23 21:28:14,236 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_init_dynamic_harness.i [2023-11-23 21:28:14,256 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:28:14,257 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:28:14,311 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:28:14,318 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=FINITE_AUTOMATA, 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;@11964b3e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:28:14,318 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:28:14,323 INFO L276 IsEmpty]: Start isEmpty. Operand has 111 states, 62 states have (on average 1.2258064516129032) internal successors, (76), 63 states have internal predecessors, (76), 34 states have call successors, (34), 14 states have call predecessors, (34), 14 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-23 21:28:14,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-23 21:28:14,333 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:28:14,334 INFO L195 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:28:14,334 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:28:14,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:28:14,340 INFO L85 PathProgramCache]: Analyzing trace with hash -767777379, now seen corresponding path program 1 times [2023-11-23 21:28:14,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:28:14,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829393852] [2023-11-23 21:28:14,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:28:14,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:28:14,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:28:14,938 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:28:14,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829393852] [2023-11-23 21:28:14,939 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-23 21:28:14,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99644770] [2023-11-23 21:28:14,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:28:14,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:28:14,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2d18c7-ebf3-4715-8ddb-7b5219277904/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:28:14,950 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2d18c7-ebf3-4715-8ddb-7b5219277904/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:28:14,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2d18c7-ebf3-4715-8ddb-7b5219277904/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:28:15,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:28:15,567 INFO L262 TraceCheckSpWp]: Trace formula consists of 1957 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:28:15,574 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:28:15,602 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-23 21:28:15,602 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:28:15,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [99644770] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:28:15,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:28:15,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:28:15,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624862415] [2023-11-23 21:28:15,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:28:15,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:28:15,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:28:15,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:28:15,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:28:15,644 INFO L87 Difference]: Start difference. First operand has 111 states, 62 states have (on average 1.2258064516129032) internal successors, (76), 63 states have internal predecessors, (76), 34 states have call successors, (34), 14 states have call predecessors, (34), 14 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-23 21:28:15,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:28:15,860 INFO L93 Difference]: Finished difference Result 213 states and 282 transitions. [2023-11-23 21:28:15,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:28:15,863 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 39 [2023-11-23 21:28:15,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:28:15,876 INFO L225 Difference]: With dead ends: 213 [2023-11-23 21:28:15,876 INFO L226 Difference]: Without dead ends: 107 [2023-11-23 21:28:15,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:28:15,886 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:28:15,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 124 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:28:15,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-11-23 21:28:15,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2023-11-23 21:28:15,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 58 states have (on average 1.206896551724138) internal successors, (70), 60 states have internal predecessors, (70), 34 states have call successors, (34), 14 states have call predecessors, (34), 14 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-23 21:28:15,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 136 transitions. [2023-11-23 21:28:15,955 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 136 transitions. Word has length 39 [2023-11-23 21:28:15,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:28:15,957 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 136 transitions. [2023-11-23 21:28:15,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-23 21:28:15,958 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 136 transitions. [2023-11-23 21:28:15,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-23 21:28:15,960 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:28:15,960 INFO L195 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:28:15,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2d18c7-ebf3-4715-8ddb-7b5219277904/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:28:16,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2d18c7-ebf3-4715-8ddb-7b5219277904/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:28:16,176 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:28:16,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:28:16,177 INFO L85 PathProgramCache]: Analyzing trace with hash -755927444, now seen corresponding path program 1 times [2023-11-23 21:28:16,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:28:16,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088612728] [2023-11-23 21:28:16,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:28:16,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:28:16,303 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:28:16,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1516779] [2023-11-23 21:28:16,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:28:16,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:28:16,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2d18c7-ebf3-4715-8ddb-7b5219277904/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:28:16,305 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2d18c7-ebf3-4715-8ddb-7b5219277904/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:28:16,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2d18c7-ebf3-4715-8ddb-7b5219277904/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 21:28:16,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:28:16,798 INFO L262 TraceCheckSpWp]: Trace formula consists of 1985 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:28:16,803 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:28:16,853 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-23 21:28:16,854 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:28:16,854 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:28:16,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088612728] [2023-11-23 21:28:16,854 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:28:16,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1516779] [2023-11-23 21:28:16,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1516779] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:28:16,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:28:16,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:28:16,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315892597] [2023-11-23 21:28:16,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:28:16,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:28:16,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:28:16,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:28:16,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:28:16,859 INFO L87 Difference]: Start difference. First operand 107 states and 136 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-23 21:28:17,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:28:17,147 INFO L93 Difference]: Finished difference Result 203 states and 255 transitions. [2023-11-23 21:28:17,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:28:17,148 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 44 [2023-11-23 21:28:17,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:28:17,152 INFO L225 Difference]: With dead ends: 203 [2023-11-23 21:28:17,152 INFO L226 Difference]: Without dead ends: 108 [2023-11-23 21:28:17,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:28:17,162 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 1 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:28:17,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 355 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 21:28:17,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-11-23 21:28:17,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2023-11-23 21:28:17,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 59 states have (on average 1.2033898305084745) internal successors, (71), 61 states have internal predecessors, (71), 34 states have call successors, (34), 14 states have call predecessors, (34), 14 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-23 21:28:17,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 137 transitions. [2023-11-23 21:28:17,186 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 137 transitions. Word has length 44 [2023-11-23 21:28:17,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:28:17,186 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 137 transitions. [2023-11-23 21:28:17,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-23 21:28:17,188 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 137 transitions. [2023-11-23 21:28:17,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-23 21:28:17,192 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:28:17,192 INFO L195 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:28:17,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2d18c7-ebf3-4715-8ddb-7b5219277904/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 21:28:17,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2d18c7-ebf3-4715-8ddb-7b5219277904/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:28:17,407 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:28:17,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:28:17,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1414479926, now seen corresponding path program 1 times [2023-11-23 21:28:17,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:28:17,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396730307] [2023-11-23 21:28:17,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:28:17,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:28:17,526 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:28:17,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [301518721] [2023-11-23 21:28:17,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:28:17,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:28:17,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2d18c7-ebf3-4715-8ddb-7b5219277904/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:28:17,531 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2d18c7-ebf3-4715-8ddb-7b5219277904/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:28:17,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2d18c7-ebf3-4715-8ddb-7b5219277904/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 21:28:17,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:28:18,009 INFO L262 TraceCheckSpWp]: Trace formula consists of 2004 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 21:28:18,014 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:28:18,064 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-23 21:28:18,065 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:28:18,173 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-23 21:28:18,173 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:28:18,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396730307] [2023-11-23 21:28:18,174 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:28:18,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301518721] [2023-11-23 21:28:18,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [301518721] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:28:18,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [988669358] [2023-11-23 21:28:18,197 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2023-11-23 21:28:18,198 INFO L166 IcfgInterpreter]: Building call graph [2023-11-23 21:28:18,202 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-23 21:28:18,211 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-23 21:28:18,211 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs