./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942f2bec-7963-4af7-b19f-f14b03242453/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942f2bec-7963-4af7-b19f-f14b03242453/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942f2bec-7963-4af7-b19f-f14b03242453/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942f2bec-7963-4af7-b19f-f14b03242453/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942f2bec-7963-4af7-b19f-f14b03242453/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942f2bec-7963-4af7-b19f-f14b03242453/bin/utaipan-verify-NcY6lQBIFX --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 d58b6cbe3dbcae2c6bf4b35286cc82fa39ed49d435b7e41930b97647d699f843 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 01:01:49,338 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 01:01:49,432 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942f2bec-7963-4af7-b19f-f14b03242453/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 01:01:49,437 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 01:01:49,437 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 01:01:49,461 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 01:01:49,462 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 01:01:49,463 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 01:01:49,463 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 01:01:49,464 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 01:01:49,464 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 01:01:49,465 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 01:01:49,466 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 01:01:49,466 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 01:01:49,467 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 01:01:49,467 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 01:01:49,468 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 01:01:49,468 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 01:01:49,469 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 01:01:49,469 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 01:01:49,470 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 01:01:49,470 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 01:01:49,471 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 01:01:49,472 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 01:01:49,472 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 01:01:49,473 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 01:01:49,473 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 01:01:49,473 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 01:01:49,474 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 01:01:49,474 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 01:01:49,475 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 01:01:49,475 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 01:01:49,475 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 01:01:49,476 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:01:49,476 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 01:01:49,476 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 01:01:49,477 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 01:01:49,477 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 01:01:49,477 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 01:01:49,477 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 01:01:49,477 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 01:01:49,478 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 01:01:49,478 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_942f2bec-7963-4af7-b19f-f14b03242453/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942f2bec-7963-4af7-b19f-f14b03242453/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d58b6cbe3dbcae2c6bf4b35286cc82fa39ed49d435b7e41930b97647d699f843 [2023-11-12 01:01:49,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 01:01:49,818 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 01:01:49,821 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 01:01:49,823 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 01:01:49,823 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 01:01:49,825 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942f2bec-7963-4af7-b19f-f14b03242453/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i [2023-11-12 01:01:52,919 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 01:01:53,515 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 01:01:53,517 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942f2bec-7963-4af7-b19f-f14b03242453/sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i [2023-11-12 01:01:53,557 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942f2bec-7963-4af7-b19f-f14b03242453/bin/utaipan-verify-NcY6lQBIFX/data/2a1765cd6/9330a2c59b0f4182bbf677482943b12e/FLAG04a05e8e2 [2023-11-12 01:01:53,577 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942f2bec-7963-4af7-b19f-f14b03242453/bin/utaipan-verify-NcY6lQBIFX/data/2a1765cd6/9330a2c59b0f4182bbf677482943b12e [2023-11-12 01:01:53,584 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 01:01:53,586 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 01:01:53,590 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 01:01:53,590 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 01:01:53,596 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 01:01:53,597 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:01:53" (1/1) ... [2023-11-12 01:01:53,598 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c3ac6bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:53, skipping insertion in model container [2023-11-12 01:01:53,598 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:01:53" (1/1) ... [2023-11-12 01:01:53,794 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 01:01:54,103 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_942f2bec-7963-4af7-b19f-f14b03242453/sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i[4497,4510] [2023-11-12 01:01:54,112 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_942f2bec-7963-4af7-b19f-f14b03242453/sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i[4557,4570] [2023-11-12 01:01:55,356 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:55,357 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:55,358 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:55,362 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:55,366 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:55,412 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:55,413 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:55,415 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:55,416 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:55,418 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:55,419 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:55,420 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:55,420 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:55,838 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 01:01:55,839 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 01:01:55,840 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 01:01:55,842 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 01:01:55,843 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 01:01:55,844 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 01:01:55,845 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 01:01:55,846 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 01:01:55,847 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 01:01:55,848 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 01:01:56,029 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:56,043 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:56,120 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:01:56,174 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 01:01:56,188 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942f2bec-7963-4af7-b19f-f14b03242453/sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i[4497,4510] [2023-11-12 01:01:56,189 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_942f2bec-7963-4af7-b19f-f14b03242453/sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i[4557,4570] [2023-11-12 01:01:56,290 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:56,294 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:56,294 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:56,295 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:56,297 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:56,309 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:56,310 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:56,313 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:56,313 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:56,315 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:56,316 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:56,320 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:56,321 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:56,372 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 01:01:56,376 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 01:01:56,380 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 01:01:56,384 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 01:01:56,386 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 01:01:56,387 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 01:01:56,388 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 01:01:56,389 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 01:01:56,390 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 01:01:56,391 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 01:01:56,433 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:56,440 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 01:01:56,457 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7747-7758] [2023-11-12 01:01:56,488 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:01:56,824 WARN L672 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:56,825 WARN L672 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:56,825 WARN L672 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:56,825 WARN L672 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:56,826 WARN L672 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:56,826 WARN L672 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:56,826 WARN L672 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:56,826 WARN L672 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:56,827 WARN L672 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:56,827 WARN L672 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:56,827 WARN L672 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:56,828 WARN L672 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:56,828 WARN L672 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:56,828 WARN L672 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:56,828 WARN L672 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 01:01:56,836 INFO L206 MainTranslator]: Completed translation [2023-11-12 01:01:56,837 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:56 WrapperNode [2023-11-12 01:01:56,837 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 01:01:56,839 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 01:01:56,839 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 01:01:56,839 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 01:01:56,847 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:56" (1/1) ... [2023-11-12 01:01:56,956 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:56" (1/1) ... [2023-11-12 01:01:57,059 INFO L138 Inliner]: procedures = 689, calls = 1688, calls flagged for inlining = 53, calls inlined = 9, statements flattened = 618 [2023-11-12 01:01:57,060 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 01:01:57,061 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 01:01:57,061 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 01:01:57,062 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 01:01:57,073 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:56" (1/1) ... [2023-11-12 01:01:57,073 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:56" (1/1) ... [2023-11-12 01:01:57,092 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:56" (1/1) ... [2023-11-12 01:01:57,094 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:56" (1/1) ... [2023-11-12 01:01:57,145 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:56" (1/1) ... [2023-11-12 01:01:57,168 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:56" (1/1) ... [2023-11-12 01:01:57,176 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:56" (1/1) ... [2023-11-12 01:01:57,191 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:56" (1/1) ... [2023-11-12 01:01:57,203 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 01:01:57,210 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 01:01:57,210 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 01:01:57,210 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 01:01:57,211 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:56" (1/1) ... [2023-11-12 01:01:57,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:01:57,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942f2bec-7963-4af7-b19f-f14b03242453/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:01:57,248 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942f2bec-7963-4af7-b19f-f14b03242453/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 01:01:57,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942f2bec-7963-4af7-b19f-f14b03242453/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 01:01:57,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 01:01:57,293 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2023-11-12 01:01:57,293 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2023-11-12 01:01:57,293 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2023-11-12 01:01:57,294 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2023-11-12 01:01:57,294 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-12 01:01:57,295 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-12 01:01:57,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 01:01:57,296 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-12 01:01:57,296 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-12 01:01:57,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 01:01:57,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 01:01:57,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 01:01:57,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 01:01:57,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 01:01:57,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 01:01:57,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 01:01:57,297 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-12 01:01:57,298 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-12 01:01:57,298 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-11-12 01:01:57,299 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-11-12 01:01:57,299 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-12 01:01:57,299 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-12 01:01:57,299 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 01:01:57,299 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 01:01:57,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 01:01:57,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 01:01:57,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 01:01:57,300 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-12 01:01:57,300 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-12 01:01:57,300 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-12 01:01:57,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-12 01:01:57,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 01:01:57,302 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2023-11-12 01:01:57,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2023-11-12 01:01:57,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 01:01:57,673 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 01:01:57,675 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 01:01:58,833 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 01:01:59,055 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 01:01:59,055 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 01:01:59,059 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:01:59 BoogieIcfgContainer [2023-11-12 01:01:59,059 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 01:01:59,062 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 01:01:59,062 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 01:01:59,065 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 01:01:59,066 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 01:01:53" (1/3) ... [2023-11-12 01:01:59,068 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@533ddab4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:01:59, skipping insertion in model container [2023-11-12 01:01:59,068 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:01:56" (2/3) ... [2023-11-12 01:01:59,068 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@533ddab4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:01:59, skipping insertion in model container [2023-11-12 01:01:59,068 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:01:59" (3/3) ... [2023-11-12 01:01:59,070 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_capacity_harness.i [2023-11-12 01:01:59,090 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 01:01:59,090 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 01:01:59,151 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 01:01:59,164 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;@5adae1f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 01:01:59,164 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 01:01:59,170 INFO L276 IsEmpty]: Start isEmpty. Operand has 99 states, 54 states have (on average 1.1851851851851851) internal successors, (64), 55 states have internal predecessors, (64), 31 states have call successors, (31), 12 states have call predecessors, (31), 12 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-12 01:01:59,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-12 01:01:59,182 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:01:59,183 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 01:01:59,184 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:01:59,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:01:59,192 INFO L85 PathProgramCache]: Analyzing trace with hash 63349369, now seen corresponding path program 1 times [2023-11-12 01:01:59,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:01:59,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244005415] [2023-11-12 01:01:59,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:01:59,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:01:59,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:01:59,849 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:01:59,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244005415] [2023-11-12 01:01:59,850 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-12 01:01:59,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119243884] [2023-11-12 01:01:59,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:01:59,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 01:01:59,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942f2bec-7963-4af7-b19f-f14b03242453/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:01:59,855 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942f2bec-7963-4af7-b19f-f14b03242453/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 01:01:59,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942f2bec-7963-4af7-b19f-f14b03242453/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 01:02:00,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:02:00,511 INFO L262 TraceCheckSpWp]: Trace formula consists of 2035 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 01:02:00,526 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:02:00,653 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-12 01:02:00,655 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 01:02:00,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119243884] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:02:00,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:02:00,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 01:02:00,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993583381] [2023-11-12 01:02:00,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:02:00,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 01:02:00,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:02:00,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 01:02:00,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 01:02:00,720 INFO L87 Difference]: Start difference. First operand has 99 states, 54 states have (on average 1.1851851851851851) internal successors, (64), 55 states have internal predecessors, (64), 31 states have call successors, (31), 12 states have call predecessors, (31), 12 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-12 01:02:01,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:02:01,207 INFO L93 Difference]: Finished difference Result 169 states and 229 transitions. [2023-11-12 01:02:01,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 01:02:01,211 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 58 [2023-11-12 01:02:01,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:02:01,223 INFO L225 Difference]: With dead ends: 169 [2023-11-12 01:02:01,223 INFO L226 Difference]: Without dead ends: 99 [2023-11-12 01:02:01,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 01:02:01,231 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 26 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-12 01:02:01,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 355 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-12 01:02:01,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-11-12 01:02:01,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2023-11-12 01:02:01,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 54 states have (on average 1.1666666666666667) internal successors, (63), 56 states have internal predecessors, (63), 31 states have call successors, (31), 12 states have call predecessors, (31), 13 states have return successors, (32), 30 states have call predecessors, (32), 30 states have call successors, (32) [2023-11-12 01:02:01,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 126 transitions. [2023-11-12 01:02:01,288 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 126 transitions. Word has length 58 [2023-11-12 01:02:01,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:02:01,289 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 126 transitions. [2023-11-12 01:02:01,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-12 01:02:01,290 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 126 transitions. [2023-11-12 01:02:01,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-12 01:02:01,294 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:02:01,294 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 01:02:01,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942f2bec-7963-4af7-b19f-f14b03242453/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 01:02:01,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942f2bec-7963-4af7-b19f-f14b03242453/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-12 01:02:01,504 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:02:01,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:02:01,505 INFO L85 PathProgramCache]: Analyzing trace with hash -365083102, now seen corresponding path program 1 times [2023-11-12 01:02:01,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:02:01,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608182522] [2023-11-12 01:02:01,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:01,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:02:01,621 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 01:02:01,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1321207167] [2023-11-12 01:02:01,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:01,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 01:02:01,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942f2bec-7963-4af7-b19f-f14b03242453/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:02:01,623 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942f2bec-7963-4af7-b19f-f14b03242453/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 01:02:01,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942f2bec-7963-4af7-b19f-f14b03242453/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 01:02:02,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:02:02,177 INFO L262 TraceCheckSpWp]: Trace formula consists of 2167 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-12 01:02:02,183 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:02:02,282 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-12 01:02:02,283 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 01:02:02,283 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:02:02,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608182522] [2023-11-12 01:02:02,284 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 01:02:02,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1321207167] [2023-11-12 01:02:02,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1321207167] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:02:02,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:02:02,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 01:02:02,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959378225] [2023-11-12 01:02:02,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:02:02,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 01:02:02,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:02:02,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 01:02:02,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 01:02:02,288 INFO L87 Difference]: Start difference. First operand 99 states and 126 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 4 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-12 01:02:02,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:02:02,801 INFO L93 Difference]: Finished difference Result 156 states and 196 transitions. [2023-11-12 01:02:02,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 01:02:02,802 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 4 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 67 [2023-11-12 01:02:02,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:02:02,805 INFO L225 Difference]: With dead ends: 156 [2023-11-12 01:02:02,805 INFO L226 Difference]: Without dead ends: 97 [2023-11-12 01:02:02,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-12 01:02:02,807 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 24 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-12 01:02:02,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 443 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-12 01:02:02,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-11-12 01:02:02,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2023-11-12 01:02:02,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 53 states have (on average 1.150943396226415) internal successors, (61), 54 states have internal predecessors, (61), 31 states have call successors, (31), 12 states have call predecessors, (31), 12 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-12 01:02:02,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 122 transitions. [2023-11-12 01:02:02,823 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 122 transitions. Word has length 67 [2023-11-12 01:02:02,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:02:02,824 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 122 transitions. [2023-11-12 01:02:02,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 4 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-12 01:02:02,825 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 122 transitions. [2023-11-12 01:02:02,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-12 01:02:02,828 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:02:02,828 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 01:02:02,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942f2bec-7963-4af7-b19f-f14b03242453/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 01:02:03,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942f2bec-7963-4af7-b19f-f14b03242453/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 01:02:03,049 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:02:03,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:02:03,049 INFO L85 PathProgramCache]: Analyzing trace with hash 133843110, now seen corresponding path program 1 times [2023-11-12 01:02:03,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:02:03,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085397043] [2023-11-12 01:02:03,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:03,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:02:03,223 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 01:02:03,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1106109700] [2023-11-12 01:02:03,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:03,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 01:02:03,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942f2bec-7963-4af7-b19f-f14b03242453/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:02:03,231 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942f2bec-7963-4af7-b19f-f14b03242453/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 01:02:03,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942f2bec-7963-4af7-b19f-f14b03242453/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 01:02:04,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:02:04,082 INFO L262 TraceCheckSpWp]: Trace formula consists of 2431 conjuncts, 285 conjunts are in the unsatisfiable core [2023-11-12 01:02:04,111 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:02:04,152 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-12 01:02:04,960 INFO L322 Elim1Store]: treesize reduction 44, result has 47.0 percent of original size [2023-11-12 01:02:04,960 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 48 [2023-11-12 01:02:44,277 WARN L293 SmtUtils]: Spent 8.98s on a formula simplification that was a NOOP. DAG size: 208 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)