./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness_negated.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_4578a167-7fb0-435e-bf50-503f4cd9e742/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4578a167-7fb0-435e-bf50-503f4cd9e742/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_4578a167-7fb0-435e-bf50-503f4cd9e742/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4578a167-7fb0-435e-bf50-503f4cd9e742/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4578a167-7fb0-435e-bf50-503f4cd9e742/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_4578a167-7fb0-435e-bf50-503f4cd9e742/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 ac2d6f81182a30a3913994ab9f22d7c2f1f468956657d41080d094a676bb2180 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:52:26,270 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:52:26,381 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4578a167-7fb0-435e-bf50-503f4cd9e742/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:52:26,386 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:52:26,386 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:52:26,434 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:52:26,434 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:52:26,435 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:52:26,444 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:52:26,447 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:52:26,447 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:52:26,448 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:52:26,448 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:52:26,455 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:52:26,456 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:52:26,456 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:52:26,457 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:52:26,457 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:52:26,458 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:52:26,458 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:52:26,459 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:52:26,459 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:52:26,460 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:52:26,461 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:52:26,461 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:52:26,462 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:52:26,462 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:52:26,462 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:52:26,463 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:52:26,463 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:52:26,464 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:52:26,465 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:52:26,465 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:52:26,465 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:52:26,466 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:52:26,466 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:52:26,466 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:52:26,466 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:52:26,467 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:52:26,467 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:52:26,467 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:52:26,467 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:52:26,468 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_4578a167-7fb0-435e-bf50-503f4cd9e742/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4578a167-7fb0-435e-bf50-503f4cd9e742/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac2d6f81182a30a3913994ab9f22d7c2f1f468956657d41080d094a676bb2180 [2023-11-12 00:52:26,822 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:52:26,856 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:52:26,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:52:26,860 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:52:26,861 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:52:26,862 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4578a167-7fb0-435e-bf50-503f4cd9e742/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness_negated.i [2023-11-12 00:52:30,016 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:52:30,606 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:52:30,607 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4578a167-7fb0-435e-bf50-503f4cd9e742/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness_negated.i [2023-11-12 00:52:30,662 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4578a167-7fb0-435e-bf50-503f4cd9e742/bin/utaipan-verify-NcY6lQBIFX/data/b626eedef/7d47fc5708274a349374d47a853dbfce/FLAGa7dff0e77 [2023-11-12 00:52:30,687 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4578a167-7fb0-435e-bf50-503f4cd9e742/bin/utaipan-verify-NcY6lQBIFX/data/b626eedef/7d47fc5708274a349374d47a853dbfce [2023-11-12 00:52:30,693 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:52:30,695 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:52:30,697 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:52:30,697 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:52:30,703 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:52:30,706 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:52:30" (1/1) ... [2023-11-12 00:52:30,707 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48a7ee2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:30, skipping insertion in model container [2023-11-12 00:52:30,707 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:52:30" (1/1) ... [2023-11-12 00:52:30,867 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:52:31,176 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_4578a167-7fb0-435e-bf50-503f4cd9e742/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness_negated.i[4499,4512] [2023-11-12 00:52:31,186 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_4578a167-7fb0-435e-bf50-503f4cd9e742/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness_negated.i[4559,4572] [2023-11-12 00:52:32,468 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:52:32,471 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:52:32,475 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:52:32,476 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:52:32,479 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:52:32,495 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:52:32,496 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:52:32,498 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:52:32,499 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:52:33,035 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 00:52:33,040 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 00:52:33,042 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 00:52:33,044 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 00:52:33,049 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 00:52:33,050 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 00:52:33,051 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 00:52:33,053 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 00:52:33,055 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 00:52:33,056 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 00:52:33,353 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:52:33,360 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:52:33,413 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:52:33,476 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:52:33,501 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_4578a167-7fb0-435e-bf50-503f4cd9e742/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness_negated.i[4499,4512] [2023-11-12 00:52:33,502 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_4578a167-7fb0-435e-bf50-503f4cd9e742/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness_negated.i[4559,4572] [2023-11-12 00:52:33,575 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:52:33,576 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:52:33,576 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:52:33,576 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:52:33,577 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:52:33,586 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:52:33,592 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:52:33,594 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:52:33,595 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:52:33,644 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 00:52:33,645 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 00:52:33,646 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 00:52:33,655 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 00:52:33,657 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 00:52:33,658 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 00:52:33,658 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 00:52:33,661 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 00:52:33,662 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 00:52:33,663 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 00:52:33,805 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8556] [2023-11-12 00:52:33,807 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:52:33,809 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:52:33,828 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:52:34,170 WARN L672 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:52:34,171 WARN L672 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:52:34,171 WARN L672 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:52:34,171 WARN L672 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:52:34,171 WARN L672 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:52:34,172 WARN L672 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:52:34,172 WARN L672 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:52:34,173 WARN L672 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:52:34,173 WARN L672 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:52:34,173 WARN L672 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:52:34,174 WARN L672 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:52:34,174 WARN L672 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:52:34,175 WARN L672 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:52:34,175 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:52:34,175 WARN L672 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:52:34,175 WARN L672 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:52:34,176 WARN L672 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:52:34,184 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:52:34,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:34 WrapperNode [2023-11-12 00:52:34,185 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:52:34,186 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:52:34,187 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:52:34,187 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:52:34,195 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:34" (1/1) ... [2023-11-12 00:52:34,332 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:34" (1/1) ... [2023-11-12 00:52:34,415 INFO L138 Inliner]: procedures = 680, calls = 2274, calls flagged for inlining = 57, calls inlined = 5, statements flattened = 368 [2023-11-12 00:52:34,417 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:52:34,418 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:52:34,418 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:52:34,418 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:52:34,428 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:34" (1/1) ... [2023-11-12 00:52:34,429 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:34" (1/1) ... [2023-11-12 00:52:34,440 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:34" (1/1) ... [2023-11-12 00:52:34,441 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:34" (1/1) ... [2023-11-12 00:52:34,486 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:34" (1/1) ... [2023-11-12 00:52:34,496 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:34" (1/1) ... [2023-11-12 00:52:34,513 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:34" (1/1) ... [2023-11-12 00:52:34,517 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:34" (1/1) ... [2023-11-12 00:52:34,525 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:52:34,526 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:52:34,526 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:52:34,526 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:52:34,527 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:34" (1/1) ... [2023-11-12 00:52:34,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:52:34,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4578a167-7fb0-435e-bf50-503f4cd9e742/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:52:34,575 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4578a167-7fb0-435e-bf50-503f4cd9e742/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:52:34,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4578a167-7fb0-435e-bf50-503f4cd9e742/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:52:34,627 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2023-11-12 00:52:34,627 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2023-11-12 00:52:34,628 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_ignore_case [2023-11-12 00:52:34,629 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_ignore_case [2023-11-12 00:52:34,629 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2023-11-12 00:52:34,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2023-11-12 00:52:34,629 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-12 00:52:34,630 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-12 00:52:34,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:52:34,630 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 00:52:34,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 00:52:34,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:52:34,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:52:34,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:52:34,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:52:34,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:52:34,632 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-12 00:52:34,633 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-12 00:52:34,633 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:52:34,633 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:52:34,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:52:34,633 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-12 00:52:34,633 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-12 00:52:34,633 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-12 00:52:34,634 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-12 00:52:34,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:52:34,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:52:34,906 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:52:34,908 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:52:35,476 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:52:35,605 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:52:35,605 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:52:35,610 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:52:35 BoogieIcfgContainer [2023-11-12 00:52:35,611 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:52:35,613 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:52:35,613 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:52:35,616 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:52:35,617 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:52:30" (1/3) ... [2023-11-12 00:52:35,618 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21ed18f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:52:35, skipping insertion in model container [2023-11-12 00:52:35,618 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:34" (2/3) ... [2023-11-12 00:52:35,620 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21ed18f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:52:35, skipping insertion in model container [2023-11-12 00:52:35,620 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:52:35" (3/3) ... [2023-11-12 00:52:35,621 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_string_eq_ignore_case_harness_negated.i [2023-11-12 00:52:35,642 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:52:35,642 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:52:35,700 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:52:35,707 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;@7717b55b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:52:35,707 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:52:35,711 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 46 states have (on average 1.2826086956521738) internal successors, (59), 47 states have internal predecessors, (59), 23 states have call successors, (23), 9 states have call predecessors, (23), 9 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-12 00:52:35,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-12 00:52:35,722 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:52:35,722 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-12 00:52:35,723 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:52:35,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:52:35,728 INFO L85 PathProgramCache]: Analyzing trace with hash -2068935937, now seen corresponding path program 1 times [2023-11-12 00:52:35,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:52:35,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110468410] [2023-11-12 00:52:35,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:52:35,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:52:35,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:52:36,694 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-12 00:52:36,694 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:52:36,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110468410] [2023-11-12 00:52:36,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110468410] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:52:36,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:52:36,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:52:36,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312767051] [2023-11-12 00:52:36,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:52:36,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:52:36,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:52:36,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:52:36,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:52:36,742 INFO L87 Difference]: Start difference. First operand has 80 states, 46 states have (on average 1.2826086956521738) internal successors, (59), 47 states have internal predecessors, (59), 23 states have call successors, (23), 9 states have call predecessors, (23), 9 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-12 00:52:36,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:52:36,946 INFO L93 Difference]: Finished difference Result 123 states and 168 transitions. [2023-11-12 00:52:36,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:52:36,949 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 35 [2023-11-12 00:52:36,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:52:36,960 INFO L225 Difference]: With dead ends: 123 [2023-11-12 00:52:36,961 INFO L226 Difference]: Without dead ends: 77 [2023-11-12 00:52:36,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:52:36,973 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 11 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:52:36,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 263 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:52:36,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-11-12 00:52:37,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2023-11-12 00:52:37,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 44 states have (on average 1.2272727272727273) internal successors, (54), 45 states have internal predecessors, (54), 23 states have call successors, (23), 9 states have call predecessors, (23), 9 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-12 00:52:37,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 99 transitions. [2023-11-12 00:52:37,041 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 99 transitions. Word has length 35 [2023-11-12 00:52:37,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:52:37,046 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 99 transitions. [2023-11-12 00:52:37,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-12 00:52:37,046 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 99 transitions. [2023-11-12 00:52:37,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-12 00:52:37,053 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:52:37,054 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:52:37,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:52:37,055 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:52:37,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:52:37,062 INFO L85 PathProgramCache]: Analyzing trace with hash 434219998, now seen corresponding path program 1 times [2023-11-12 00:52:37,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:52:37,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379695763] [2023-11-12 00:52:37,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:52:37,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:52:37,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:52:37,844 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-12 00:52:37,844 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:52:37,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379695763] [2023-11-12 00:52:37,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379695763] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:52:37,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:52:37,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-12 00:52:37,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890500731] [2023-11-12 00:52:37,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:52:37,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-12 00:52:37,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:52:37,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-12 00:52:37,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-12 00:52:37,848 INFO L87 Difference]: Start difference. First operand 77 states and 99 transitions. Second operand has 10 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 4 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-12 00:52:38,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:52:38,170 INFO L93 Difference]: Finished difference Result 115 states and 149 transitions. [2023-11-12 00:52:38,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 00:52:38,171 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 4 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) Word has length 60 [2023-11-12 00:52:38,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:52:38,172 INFO L225 Difference]: With dead ends: 115 [2023-11-12 00:52:38,172 INFO L226 Difference]: Without dead ends: 77 [2023-11-12 00:52:38,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-11-12 00:52:38,174 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 23 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 00:52:38,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 679 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 00:52:38,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-11-12 00:52:38,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2023-11-12 00:52:38,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 44 states have (on average 1.2045454545454546) internal successors, (53), 45 states have internal predecessors, (53), 23 states have call successors, (23), 9 states have call predecessors, (23), 9 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-12 00:52:38,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 98 transitions. [2023-11-12 00:52:38,197 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 98 transitions. Word has length 60 [2023-11-12 00:52:38,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:52:38,199 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 98 transitions. [2023-11-12 00:52:38,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 4 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-12 00:52:38,199 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 98 transitions. [2023-11-12 00:52:38,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-12 00:52:38,205 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:52:38,207 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:52:38,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:52:38,208 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:52:38,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:52:38,209 INFO L85 PathProgramCache]: Analyzing trace with hash 348499997, now seen corresponding path program 1 times [2023-11-12 00:52:38,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:52:38,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276465201] [2023-11-12 00:52:38,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:52:38,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:52:38,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:52:39,139 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-12 00:52:39,140 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:52:39,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276465201] [2023-11-12 00:52:39,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276465201] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:52:39,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:52:39,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-12 00:52:39,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927079345] [2023-11-12 00:52:39,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:52:39,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-12 00:52:39,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:52:39,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-12 00:52:39,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2023-11-12 00:52:39,143 INFO L87 Difference]: Start difference. First operand 77 states and 98 transitions. Second operand has 13 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 6 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 8 states have call predecessors, (13), 6 states have call successors, (13) [2023-11-12 00:52:39,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:52:39,525 INFO L93 Difference]: Finished difference Result 101 states and 128 transitions. [2023-11-12 00:52:39,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-12 00:52:39,526 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 6 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 8 states have call predecessors, (13), 6 states have call successors, (13) Word has length 64 [2023-11-12 00:52:39,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:52:39,527 INFO L225 Difference]: With dead ends: 101 [2023-11-12 00:52:39,528 INFO L226 Difference]: Without dead ends: 84 [2023-11-12 00:52:39,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2023-11-12 00:52:39,530 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 52 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 00:52:39,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 752 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 00:52:39,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-11-12 00:52:39,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 80. [2023-11-12 00:52:39,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 46 states have (on average 1.1956521739130435) internal successors, (55), 47 states have internal predecessors, (55), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-12 00:52:39,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 102 transitions. [2023-11-12 00:52:39,556 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 102 transitions. Word has length 64 [2023-11-12 00:52:39,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:52:39,558 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 102 transitions. [2023-11-12 00:52:39,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 6 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 8 states have call predecessors, (13), 6 states have call successors, (13) [2023-11-12 00:52:39,559 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 102 transitions. [2023-11-12 00:52:39,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-12 00:52:39,564 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:52:39,565 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:52:39,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:52:39,565 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:52:39,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:52:39,566 INFO L85 PathProgramCache]: Analyzing trace with hash 535057439, now seen corresponding path program 1 times [2023-11-12 00:52:39,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:52:39,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982024861] [2023-11-12 00:52:39,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:52:39,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:52:39,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:52:40,660 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-12 00:52:40,660 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:52:40,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982024861] [2023-11-12 00:52:40,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982024861] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:52:40,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:52:40,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-12 00:52:40,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213649397] [2023-11-12 00:52:40,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:52:40,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-12 00:52:40,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:52:40,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-12 00:52:40,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2023-11-12 00:52:40,663 INFO L87 Difference]: Start difference. First operand 80 states and 102 transitions. Second operand has 12 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 5 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 7 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-12 00:52:40,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:52:40,978 INFO L93 Difference]: Finished difference Result 97 states and 121 transitions. [2023-11-12 00:52:40,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-12 00:52:40,979 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 5 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 7 states have call predecessors, (13), 5 states have call successors, (13) Word has length 65 [2023-11-12 00:52:40,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:52:40,981 INFO L225 Difference]: With dead ends: 97 [2023-11-12 00:52:40,981 INFO L226 Difference]: Without dead ends: 80 [2023-11-12 00:52:40,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2023-11-12 00:52:40,983 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 35 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:52:40,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 701 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 00:52:40,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2023-11-12 00:52:40,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2023-11-12 00:52:40,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 46 states have (on average 1.173913043478261) internal successors, (54), 47 states have internal predecessors, (54), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-12 00:52:40,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 101 transitions. [2023-11-12 00:52:40,996 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 101 transitions. Word has length 65 [2023-11-12 00:52:40,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:52:40,997 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 101 transitions. [2023-11-12 00:52:40,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 5 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 7 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-12 00:52:40,997 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 101 transitions. [2023-11-12 00:52:40,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-12 00:52:40,999 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:52:40,999 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:52:40,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 00:52:40,999 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:52:41,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:52:41,000 INFO L85 PathProgramCache]: Analyzing trace with hash -2040684672, now seen corresponding path program 1 times [2023-11-12 00:52:41,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:52:41,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751959487] [2023-11-12 00:52:41,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:52:41,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:52:41,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:52:42,680 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-12 00:52:42,680 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:52:42,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751959487] [2023-11-12 00:52:42,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751959487] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:52:42,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [283317007] [2023-11-12 00:52:42,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:52:42,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:52:42,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4578a167-7fb0-435e-bf50-503f4cd9e742/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:52:42,685 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4578a167-7fb0-435e-bf50-503f4cd9e742/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:52:42,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4578a167-7fb0-435e-bf50-503f4cd9e742/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:52:43,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:52:43,067 INFO L262 TraceCheckSpWp]: Trace formula consists of 856 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-12 00:52:43,076 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:52:43,369 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-12 00:52:43,369 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:52:43,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [283317007] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:52:43,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 00:52:43,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 15 [2023-11-12 00:52:43,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12922483] [2023-11-12 00:52:43,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:52:43,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 00:52:43,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:52:43,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 00:52:43,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2023-11-12 00:52:43,373 INFO L87 Difference]: Start difference. First operand 80 states and 101 transitions. Second operand has 9 states, 6 states have (on average 5.5) internal successors, (33), 8 states have internal predecessors, (33), 6 states have call successors, (15), 2 states have call predecessors, (15), 5 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-12 00:52:43,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:52:43,607 INFO L93 Difference]: Finished difference Result 105 states and 127 transitions. [2023-11-12 00:52:43,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 00:52:43,608 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 6 states have (on average 5.5) internal successors, (33), 8 states have internal predecessors, (33), 6 states have call successors, (15), 2 states have call predecessors, (15), 5 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 68 [2023-11-12 00:52:43,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:52:43,609 INFO L225 Difference]: With dead ends: 105 [2023-11-12 00:52:43,609 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 00:52:43,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 65 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2023-11-12 00:52:43,611 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 19 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:52:43,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 116 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:52:43,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 00:52:43,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 00:52:43,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:52:43,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 00:52:43,613 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 68 [2023-11-12 00:52:43,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:52:43,614 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 00:52:43,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 6 states have (on average 5.5) internal successors, (33), 8 states have internal predecessors, (33), 6 states have call successors, (15), 2 states have call predecessors, (15), 5 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-12 00:52:43,614 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 00:52:43,614 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 00:52:43,617 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 00:52:43,626 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4578a167-7fb0-435e-bf50-503f4cd9e742/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-12 00:52:43,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4578a167-7fb0-435e-bf50-503f4cd9e742/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:52:43,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-12 00:52:43,942 INFO L899 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthEXIT(lines 6789 6793) no Hoare annotation was computed. [2023-11-12 00:52:43,943 INFO L899 garLoopResultBuilder]: For program point L6799-1(lines 6799 6800) no Hoare annotation was computed. [2023-11-12 00:52:43,943 INFO L895 garLoopResultBuilder]: At program point L6799(line 6799) the Hoare annotation is: (let ((.cse0 (mod |ensure_string_is_allocated_bounded_length_#in~max_size#1| 18446744073709551616))) (and (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (<= 1234551 .cse0) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.offset| 0) (<= (+ (mod |ensure_string_is_allocated_bounded_length_~len~1#1| 18446744073709551616) 1) .cse0) (<= (+ (mod |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1| 18446744073709551616) 1) .cse0))) [2023-11-12 00:52:43,943 INFO L899 garLoopResultBuilder]: For program point L6799-5(lines 6799 6800) no Hoare annotation was computed. [2023-11-12 00:52:43,943 INFO L899 garLoopResultBuilder]: For program point L6796-1(line 6796) no Hoare annotation was computed. [2023-11-12 00:52:43,944 INFO L895 garLoopResultBuilder]: At program point L6796(line 6796) the Hoare annotation is: (let ((.cse0 (mod |ensure_string_is_allocated_bounded_length_#in~max_size#1| 18446744073709551616))) (and (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (<= (+ (mod |ensure_string_is_allocated_bounded_length_~len~1#1| 18446744073709551616) 1) .cse0) (<= (+ (mod |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1| 18446744073709551616) 1) .cse0))) [2023-11-12 00:52:43,944 INFO L899 garLoopResultBuilder]: For program point L6799-3(line 6799) no Hoare annotation was computed. [2023-11-12 00:52:43,944 INFO L895 garLoopResultBuilder]: At program point L6799-2(line 6799) the Hoare annotation is: (let ((.cse0 (mod |ensure_string_is_allocated_bounded_length_#in~max_size#1| 18446744073709551616))) (and (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (<= 1234551 .cse0) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.offset| 0) (<= (+ (mod |ensure_string_is_allocated_bounded_length_~len~1#1| 18446744073709551616) 1) .cse0) (<= (+ (mod |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1| 18446744073709551616) 1) .cse0))) [2023-11-12 00:52:43,944 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6789 6793) the Hoare annotation is: true [2023-11-12 00:52:43,944 INFO L895 garLoopResultBuilder]: At program point L6790(line 6790) the Hoare annotation is: (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) [2023-11-12 00:52:43,945 INFO L899 garLoopResultBuilder]: For program point L6791-1(line 6791) no Hoare annotation was computed. [2023-11-12 00:52:43,945 INFO L895 garLoopResultBuilder]: At program point L6791(line 6791) the Hoare annotation is: (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) [2023-11-12 00:52:43,945 INFO L899 garLoopResultBuilder]: For program point L6790-1(line 6790) no Hoare annotation was computed. [2023-11-12 00:52:43,945 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6871 6876) the Hoare annotation is: true [2023-11-12 00:52:43,945 INFO L899 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6871 6876) no Hoare annotation was computed. [2023-11-12 00:52:43,945 INFO L899 garLoopResultBuilder]: For program point L6872-1(lines 6872 6874) no Hoare annotation was computed. [2023-11-12 00:52:43,946 INFO L895 garLoopResultBuilder]: At program point L6872(lines 6872 6874) the Hoare annotation is: (= |bounded_malloc_#in~size| bounded_malloc_~size) [2023-11-12 00:52:43,946 INFO L899 garLoopResultBuilder]: For program point nondet_boolEXIT(line 261) no Hoare annotation was computed. [2023-11-12 00:52:43,946 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 261) the Hoare annotation is: true [2023-11-12 00:52:43,946 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 210 212) the Hoare annotation is: true [2023-11-12 00:52:43,946 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2023-11-12 00:52:43,946 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6878 6880) the Hoare annotation is: true [2023-11-12 00:52:43,946 INFO L899 garLoopResultBuilder]: For program point can_fail_allocatorEXIT(lines 6878 6880) no Hoare annotation was computed. [2023-11-12 00:52:43,947 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6241 6246) the Hoare annotation is: true [2023-11-12 00:52:43,947 INFO L899 garLoopResultBuilder]: For program point aws_string_is_validEXIT(lines 6241 6246) no Hoare annotation was computed. [2023-11-12 00:52:43,947 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2023-11-12 00:52:43,947 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 266) the Hoare annotation is: true [2023-11-12 00:52:43,947 INFO L899 garLoopResultBuilder]: For program point L7414(lines 7414 7422) no Hoare annotation was computed. [2023-11-12 00:52:43,947 INFO L895 garLoopResultBuilder]: At program point L8884(line 8884) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1#1.base| 0) (= |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1#1.offset| 0)) [2023-11-12 00:52:43,948 INFO L899 garLoopResultBuilder]: For program point L8884-1(lines 8884 8886) no Hoare annotation was computed. [2023-11-12 00:52:43,948 INFO L895 garLoopResultBuilder]: At program point L8884-2(line 8884) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1#1.base| 0) (= |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1#1.offset| 0)) [2023-11-12 00:52:43,948 INFO L895 garLoopResultBuilder]: At program point L8888(line 8888) the Hoare annotation is: false [2023-11-12 00:52:43,948 INFO L895 garLoopResultBuilder]: At program point L8888-1(line 8888) the Hoare annotation is: false [2023-11-12 00:52:43,948 INFO L899 garLoopResultBuilder]: For program point L8888-2(line 8888) no Hoare annotation was computed. [2023-11-12 00:52:43,948 INFO L899 garLoopResultBuilder]: For program point L8880-3(line 8880) no Hoare annotation was computed. [2023-11-12 00:52:43,949 INFO L899 garLoopResultBuilder]: For program point L8880-5(lines 8880 8881) no Hoare annotation was computed. [2023-11-12 00:52:43,949 INFO L899 garLoopResultBuilder]: For program point L8884-3(line 8884) no Hoare annotation was computed. [2023-11-12 00:52:43,949 INFO L902 garLoopResultBuilder]: At program point L8880(line 8880) the Hoare annotation is: true [2023-11-12 00:52:43,949 INFO L899 garLoopResultBuilder]: For program point L8880-1(lines 8880 8881) no Hoare annotation was computed. [2023-11-12 00:52:43,949 INFO L899 garLoopResultBuilder]: For program point L8884-5(lines 8884 8886) no Hoare annotation was computed. [2023-11-12 00:52:43,949 INFO L902 garLoopResultBuilder]: At program point L8880-2(line 8880) the Hoare annotation is: true [2023-11-12 00:52:43,949 INFO L899 garLoopResultBuilder]: For program point L7423-1(line 7423) no Hoare annotation was computed. [2023-11-12 00:52:43,950 INFO L895 garLoopResultBuilder]: At program point L7423(line 7423) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1#1.base| 0) (= |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1#1.offset| 0)) [2023-11-12 00:52:43,950 INFO L895 garLoopResultBuilder]: At program point L8889(line 8889) the Hoare annotation is: false [2023-11-12 00:52:43,950 INFO L895 garLoopResultBuilder]: At program point L8889-1(line 8889) the Hoare annotation is: false [2023-11-12 00:52:43,950 INFO L899 garLoopResultBuilder]: For program point L8889-2(line 8889) no Hoare annotation was computed. [2023-11-12 00:52:43,950 INFO L899 garLoopResultBuilder]: For program point L7407(line 7407) no Hoare annotation was computed. [2023-11-12 00:52:43,950 INFO L899 garLoopResultBuilder]: For program point L7407-5(line 7407) no Hoare annotation was computed. [2023-11-12 00:52:43,951 INFO L895 garLoopResultBuilder]: At program point L7407-4(line 7407) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1#1.base| 0) (= |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1#1.offset| 0)) [2023-11-12 00:52:43,951 INFO L899 garLoopResultBuilder]: For program point L7407-3(line 7407) no Hoare annotation was computed. [2023-11-12 00:52:43,951 INFO L895 garLoopResultBuilder]: At program point L7407-2(line 7407) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1#1.base| 0) (= |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1#1.offset| 0)) [2023-11-12 00:52:43,951 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-12 00:52:43,951 INFO L895 garLoopResultBuilder]: At program point L8890(line 8890) the Hoare annotation is: false [2023-11-12 00:52:43,951 INFO L899 garLoopResultBuilder]: For program point L8886-1(line 8886) no Hoare annotation was computed. [2023-11-12 00:52:43,951 INFO L899 garLoopResultBuilder]: For program point L8890-1(line 8890) no Hoare annotation was computed. [2023-11-12 00:52:43,952 INFO L895 garLoopResultBuilder]: At program point L8886(line 8886) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1#1.base| 0) (= |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1#1.offset| 0)) [2023-11-12 00:52:43,952 INFO L895 garLoopResultBuilder]: At program point L7408-2(line 7408) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1#1.base| 0) (= |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1#1.offset| 0)) [2023-11-12 00:52:43,952 INFO L899 garLoopResultBuilder]: For program point L7408(line 7408) no Hoare annotation was computed. [2023-11-12 00:52:43,952 INFO L899 garLoopResultBuilder]: For program point L7408-5(line 7408) no Hoare annotation was computed. [2023-11-12 00:52:43,952 INFO L895 garLoopResultBuilder]: At program point L7408-4(line 7408) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1#1.base| 0) (= |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1#1.offset| 0)) [2023-11-12 00:52:43,952 INFO L899 garLoopResultBuilder]: For program point L7408-3(line 7408) no Hoare annotation was computed. [2023-11-12 00:52:43,953 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-12 00:52:43,953 INFO L899 garLoopResultBuilder]: For program point L8887(lines 8887 8891) no Hoare annotation was computed. [2023-11-12 00:52:43,953 INFO L899 garLoopResultBuilder]: For program point L7409(lines 7409 7413) no Hoare annotation was computed. [2023-11-12 00:52:43,953 INFO L899 garLoopResultBuilder]: For program point L8879(lines 8879 8892) no Hoare annotation was computed. [2023-11-12 00:52:43,953 INFO L899 garLoopResultBuilder]: For program point aws_string_eq_ignore_case_returnLabel#1(lines 7405 7424) no Hoare annotation was computed. [2023-11-12 00:52:43,953 INFO L899 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2023-11-12 00:52:43,953 INFO L899 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2023-11-12 00:52:43,954 INFO L899 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2023-11-12 00:52:43,954 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2023-11-12 00:52:43,954 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 222 224) the Hoare annotation is: true [2023-11-12 00:52:43,954 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2023-11-12 00:52:43,954 INFO L899 garLoopResultBuilder]: For program point L7962(lines 7959 7984) no Hoare annotation was computed. [2023-11-12 00:52:43,954 INFO L899 garLoopResultBuilder]: For program point aws_array_eq_ignore_caseFINAL(lines 7954 7984) no Hoare annotation was computed. [2023-11-12 00:52:43,954 INFO L902 garLoopResultBuilder]: At program point L7960-1(line 7960) the Hoare annotation is: true [2023-11-12 00:52:43,955 INFO L902 garLoopResultBuilder]: At program point L7960(line 7960) the Hoare annotation is: true [2023-11-12 00:52:43,955 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 7954 7984) the Hoare annotation is: true [2023-11-12 00:52:43,955 INFO L899 garLoopResultBuilder]: For program point L7974(lines 7974 7978) no Hoare annotation was computed. [2023-11-12 00:52:43,955 INFO L902 garLoopResultBuilder]: At program point L7973-3(lines 7973 7979) the Hoare annotation is: true [2023-11-12 00:52:43,955 INFO L899 garLoopResultBuilder]: For program point aws_array_eq_ignore_caseEXIT(lines 7954 7984) no Hoare annotation was computed. [2023-11-12 00:52:43,958 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-12 00:52:43,960 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:52:43,969 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:52:43 BoogieIcfgContainer [2023-11-12 00:52:43,970 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:52:43,970 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:52:43,970 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:52:43,970 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:52:43,971 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:52:35" (3/4) ... [2023-11-12 00:52:43,973 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 00:52:43,977 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ensure_string_is_allocated_bounded_length [2023-11-12 00:52:43,977 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2023-11-12 00:52:43,977 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2023-11-12 00:52:43,977 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2023-11-12 00:52:43,978 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-12 00:52:43,978 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-12 00:52:43,978 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_eq_ignore_case [2023-11-12 00:52:43,978 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2023-11-12 00:52:43,978 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_is_valid [2023-11-12 00:52:43,995 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2023-11-12 00:52:43,997 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-12 00:52:43,998 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-12 00:52:43,999 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 00:52:44,267 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4578a167-7fb0-435e-bf50-503f4cd9e742/bin/utaipan-verify-NcY6lQBIFX/witness.graphml [2023-11-12 00:52:44,267 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4578a167-7fb0-435e-bf50-503f4cd9e742/bin/utaipan-verify-NcY6lQBIFX/witness.yml [2023-11-12 00:52:44,267 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:52:44,268 INFO L158 Benchmark]: Toolchain (without parser) took 13573.04ms. Allocated memory was 125.8MB in the beginning and 318.8MB in the end (delta: 192.9MB). Free memory was 71.7MB in the beginning and 187.7MB in the end (delta: -116.0MB). Peak memory consumption was 76.9MB. Max. memory is 16.1GB. [2023-11-12 00:52:44,268 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 125.8MB. Free memory is still 97.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:52:44,269 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3488.67ms. Allocated memory was 125.8MB in the beginning and 161.5MB in the end (delta: 35.7MB). Free memory was 71.7MB in the beginning and 91.2MB in the end (delta: -19.5MB). Peak memory consumption was 66.5MB. Max. memory is 16.1GB. [2023-11-12 00:52:44,269 INFO L158 Benchmark]: Boogie Procedure Inliner took 230.97ms. Allocated memory is still 161.5MB. Free memory was 91.2MB in the beginning and 81.9MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-12 00:52:44,270 INFO L158 Benchmark]: Boogie Preprocessor took 106.97ms. Allocated memory is still 161.5MB. Free memory was 81.9MB in the beginning and 77.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 00:52:44,270 INFO L158 Benchmark]: RCFGBuilder took 1085.08ms. Allocated memory is still 161.5MB. Free memory was 77.7MB in the beginning and 71.6MB in the end (delta: 6.0MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. [2023-11-12 00:52:44,270 INFO L158 Benchmark]: TraceAbstraction took 8356.88ms. Allocated memory was 161.5MB in the beginning and 318.8MB in the end (delta: 157.3MB). Free memory was 71.6MB in the beginning and 208.7MB in the end (delta: -137.0MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2023-11-12 00:52:44,271 INFO L158 Benchmark]: Witness Printer took 297.21ms. Allocated memory is still 318.8MB. Free memory was 208.7MB in the beginning and 187.7MB in the end (delta: 21.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-12 00:52:44,274 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 125.8MB. Free memory is still 97.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3488.67ms. Allocated memory was 125.8MB in the beginning and 161.5MB in the end (delta: 35.7MB). Free memory was 71.7MB in the beginning and 91.2MB in the end (delta: -19.5MB). Peak memory consumption was 66.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 230.97ms. Allocated memory is still 161.5MB. Free memory was 91.2MB in the beginning and 81.9MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 106.97ms. Allocated memory is still 161.5MB. Free memory was 81.9MB in the beginning and 77.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1085.08ms. Allocated memory is still 161.5MB. Free memory was 77.7MB in the beginning and 71.6MB in the end (delta: 6.0MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. * TraceAbstraction took 8356.88ms. Allocated memory was 161.5MB in the beginning and 318.8MB in the end (delta: 157.3MB). Free memory was 71.6MB in the beginning and 208.7MB in the end (delta: -137.0MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. * Witness Printer took 297.21ms. Allocated memory is still 318.8MB. Free memory was 208.7MB in the beginning and 187.7MB in the end (delta: 21.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 8556]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8556] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.3s, OverallIterations: 5, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 168 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 140 mSDsluCounter, 2511 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2173 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 747 IncrementalHoareTripleChecker+Invalid, 785 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 338 mSDtfsCounter, 747 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 135 GetRequests, 73 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred in iteration=0, InterpolantAutomatonStates: 50, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 33 LocationsWithAnnotation, 105 PreInvPairs, 113 NumberOfFragments, 174 HoareAnnotationTreeSize, 105 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 33 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 360 NumberOfCodeBlocks, 360 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 354 ConstructedInterpolants, 0 QuantifiedInterpolants, 853 SizeOfPredicates, 7 NumberOfNonLiveVariables, 856 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 140/144 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 7973]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-11-12 00:52:44,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4578a167-7fb0-435e-bf50-503f4cd9e742/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE