./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 2329fc70 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_6262396c-f792-42f2-9860-22c5b1544a5f/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6262396c-f792-42f2-9860-22c5b1544a5f/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6262396c-f792-42f2-9860-22c5b1544a5f/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6262396c-f792-42f2-9860-22c5b1544a5f/bin/utaipan-gh47qXpMRh/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_6262396c-f792-42f2-9860-22c5b1544a5f/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6262396c-f792-42f2-9860-22c5b1544a5f/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --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 bca6bd93b44738cabdb18e627d524296eccdbedf54d5b17ac0472874853eab1e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 12:44:22,615 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 12:44:22,617 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 12:44:22,634 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 12:44:22,634 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 12:44:22,635 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 12:44:22,636 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 12:44:22,638 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 12:44:22,639 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 12:44:22,640 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 12:44:22,641 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 12:44:22,642 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 12:44:22,642 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 12:44:22,643 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 12:44:22,644 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 12:44:22,645 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 12:44:22,645 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 12:44:22,646 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 12:44:22,648 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 12:44:22,649 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 12:44:22,650 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 12:44:22,652 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 12:44:22,653 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 12:44:22,653 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 12:44:22,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 12:44:22,665 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 12:44:22,665 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 12:44:22,666 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 12:44:22,667 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 12:44:22,668 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 12:44:22,668 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 12:44:22,669 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 12:44:22,670 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 12:44:22,670 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 12:44:22,671 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 12:44:22,671 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 12:44:22,672 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 12:44:22,672 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 12:44:22,672 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 12:44:22,673 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 12:44:22,674 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 12:44:22,675 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6262396c-f792-42f2-9860-22c5b1544a5f/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 12:44:22,697 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 12:44:22,698 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 12:44:22,698 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 12:44:22,698 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 12:44:22,699 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 12:44:22,699 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 12:44:22,699 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 12:44:22,699 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 12:44:22,699 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 12:44:22,700 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 12:44:22,700 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 12:44:22,700 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 12:44:22,700 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 12:44:22,700 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 12:44:22,700 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 12:44:22,701 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 12:44:22,701 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 12:44:22,701 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 12:44:22,702 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 12:44:22,702 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 12:44:22,702 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 12:44:22,702 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 12:44:22,702 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 12:44:22,702 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 12:44:22,703 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 12:44:22,703 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 12:44:22,703 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 12:44:22,703 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 12:44:22,703 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 12:44:22,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:44:22,704 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 12:44:22,704 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 12:44:22,704 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 12:44:22,704 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 12:44:22,705 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 12:44:22,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 12:44:22,705 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 12:44:22,705 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 12:44:22,705 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6262396c-f792-42f2-9860-22c5b1544a5f/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6262396c-f792-42f2-9860-22c5b1544a5f/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bca6bd93b44738cabdb18e627d524296eccdbedf54d5b17ac0472874853eab1e [2022-12-14 12:44:22,881 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 12:44:22,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 12:44:22,903 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 12:44:22,904 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 12:44:22,905 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 12:44:22,906 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6262396c-f792-42f2-9860-22c5b1544a5f/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness_negated.i [2022-12-14 12:44:25,517 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 12:44:25,862 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 12:44:25,862 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6262396c-f792-42f2-9860-22c5b1544a5f/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness_negated.i [2022-12-14 12:44:25,886 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6262396c-f792-42f2-9860-22c5b1544a5f/bin/utaipan-gh47qXpMRh/data/49f74a675/7641417e2d594a06b5042fc29cd35067/FLAG34e467053 [2022-12-14 12:44:25,900 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6262396c-f792-42f2-9860-22c5b1544a5f/bin/utaipan-gh47qXpMRh/data/49f74a675/7641417e2d594a06b5042fc29cd35067 [2022-12-14 12:44:25,903 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 12:44:25,904 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 12:44:25,905 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 12:44:25,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 12:44:25,909 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 12:44:25,909 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:44:25" (1/1) ... [2022-12-14 12:44:25,910 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10bb4b2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:25, skipping insertion in model container [2022-12-14 12:44:25,910 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:44:25" (1/1) ... [2022-12-14 12:44:25,916 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 12:44:25,986 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 12:44:26,159 WARN L237 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_6262396c-f792-42f2-9860-22c5b1544a5f/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness_negated.i[4499,4512] [2022-12-14 12:44:26,164 WARN L237 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_6262396c-f792-42f2-9860-22c5b1544a5f/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness_negated.i[4559,4572] [2022-12-14 12:44:26,699 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:44:26,700 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:44:26,700 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:44:26,701 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:44:26,701 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:44:26,712 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:44:26,713 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:44:26,714 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:44:26,715 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:44:26,767 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 12:44:26,768 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 12:44:26,768 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 12:44:26,772 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 12:44:26,774 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 12:44:26,774 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 12:44:26,999 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 12:44:27,000 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 12:44:27,001 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 12:44:27,002 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 12:44:27,003 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 12:44:27,004 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 12:44:27,004 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 12:44:27,005 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 12:44:27,005 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 12:44:27,005 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 12:44:27,006 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 12:44:27,121 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 12:44:27,137 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 12:44:27,155 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-12-14 12:44:27,162 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 12:44:27,183 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 12:44:27,189 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:44:27,190 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:44:27,205 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:44:27,227 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 12:44:27,237 WARN L237 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_6262396c-f792-42f2-9860-22c5b1544a5f/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness_negated.i[4499,4512] [2022-12-14 12:44:27,237 WARN L237 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_6262396c-f792-42f2-9860-22c5b1544a5f/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness_negated.i[4559,4572] [2022-12-14 12:44:27,260 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:44:27,261 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:44:27,261 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:44:27,261 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:44:27,271 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:44:27,278 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:44:27,278 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:44:27,279 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:44:27,279 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:44:27,286 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 12:44:27,286 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 12:44:27,287 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 12:44:27,290 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 12:44:27,291 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 12:44:27,292 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 12:44:27,312 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 12:44:27,313 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 12:44:27,313 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 12:44:27,314 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 12:44:27,315 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 12:44:27,315 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 12:44:27,316 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 12:44:27,316 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 12:44:27,317 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 12:44:27,317 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 12:44:27,318 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 12:44:27,336 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 12:44:27,350 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 12:44:27,366 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-12-14 12:44:27,372 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 12:44:27,389 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 12:44:27,395 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:44:27,395 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:44:27,408 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:44:27,569 INFO L208 MainTranslator]: Completed translation [2022-12-14 12:44:27,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:27 WrapperNode [2022-12-14 12:44:27,570 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 12:44:27,571 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 12:44:27,571 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 12:44:27,571 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 12:44:27,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:27" (1/1) ... [2022-12-14 12:44:27,633 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:27" (1/1) ... [2022-12-14 12:44:27,683 INFO L138 Inliner]: procedures = 681, calls = 2271, calls flagged for inlining = 57, calls inlined = 5, statements flattened = 369 [2022-12-14 12:44:27,683 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 12:44:27,684 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 12:44:27,684 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 12:44:27,684 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 12:44:27,693 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:27" (1/1) ... [2022-12-14 12:44:27,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:27" (1/1) ... [2022-12-14 12:44:27,696 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:27" (1/1) ... [2022-12-14 12:44:27,696 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:27" (1/1) ... [2022-12-14 12:44:27,708 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:27" (1/1) ... [2022-12-14 12:44:27,711 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:27" (1/1) ... [2022-12-14 12:44:27,714 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:27" (1/1) ... [2022-12-14 12:44:27,716 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:27" (1/1) ... [2022-12-14 12:44:27,721 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 12:44:27,721 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 12:44:27,721 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 12:44:27,721 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 12:44:27,722 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:27" (1/1) ... [2022-12-14 12:44:27,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:44:27,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6262396c-f792-42f2-9860-22c5b1544a5f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:44:27,746 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6262396c-f792-42f2-9860-22c5b1544a5f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 12:44:27,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6262396c-f792-42f2-9860-22c5b1544a5f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 12:44:27,779 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2022-12-14 12:44:27,779 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2022-12-14 12:44:27,779 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_ignore_case [2022-12-14 12:44:27,779 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_ignore_case [2022-12-14 12:44:27,780 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2022-12-14 12:44:27,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2022-12-14 12:44:27,780 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-12-14 12:44:27,780 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-12-14 12:44:27,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 12:44:27,780 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 12:44:27,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 12:44:27,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 12:44:27,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 12:44:27,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 12:44:27,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 12:44:27,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 12:44:27,781 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-12-14 12:44:27,781 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-12-14 12:44:27,781 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 12:44:27,781 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 12:44:27,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 12:44:27,781 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-12-14 12:44:27,781 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-12-14 12:44:27,781 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-12-14 12:44:27,781 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-12-14 12:44:27,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 12:44:27,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 12:44:27,959 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 12:44:27,961 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 12:44:28,239 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 12:44:28,342 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 12:44:28,342 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 12:44:28,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:44:28 BoogieIcfgContainer [2022-12-14 12:44:28,345 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 12:44:28,348 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 12:44:28,348 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 12:44:28,351 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 12:44:28,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 12:44:25" (1/3) ... [2022-12-14 12:44:28,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a3e840b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:44:28, skipping insertion in model container [2022-12-14 12:44:28,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:27" (2/3) ... [2022-12-14 12:44:28,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a3e840b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:44:28, skipping insertion in model container [2022-12-14 12:44:28,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:44:28" (3/3) ... [2022-12-14 12:44:28,354 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_string_eq_ignore_case_harness_negated.i [2022-12-14 12:44:28,373 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 12:44:28,374 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 12:44:28,417 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 12:44:28,422 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=LoopsAndPotentialCycles, 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;@57568649, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 12:44:28,422 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 12:44:28,425 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) [2022-12-14 12:44:28,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-12-14 12:44:28,433 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:44:28,433 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] [2022-12-14 12:44:28,434 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:44:28,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:44:28,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1945635898, now seen corresponding path program 1 times [2022-12-14 12:44:28,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:44:28,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959201780] [2022-12-14 12:44:28,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:44:28,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:44:28,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:44:28,901 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 12:44:28,901 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:44:28,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959201780] [2022-12-14 12:44:28,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959201780] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:44:28,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:44:28,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 12:44:28,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674336436] [2022-12-14 12:44:28,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:44:28,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 12:44:28,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:44:28,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 12:44:28,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 12:44:28,932 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) [2022-12-14 12:44:29,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:44:29,031 INFO L93 Difference]: Finished difference Result 124 states and 168 transitions. [2022-12-14 12:44:29,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 12:44:29,033 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 [2022-12-14 12:44:29,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:44:29,039 INFO L225 Difference]: With dead ends: 124 [2022-12-14 12:44:29,039 INFO L226 Difference]: Without dead ends: 77 [2022-12-14 12:44:29,041 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 [2022-12-14 12:44:29,044 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 12 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:44:29,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 278 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 12:44:29,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-12-14 12:44:29,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2022-12-14 12:44:29,073 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) [2022-12-14 12:44:29,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 99 transitions. [2022-12-14 12:44:29,075 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 99 transitions. Word has length 35 [2022-12-14 12:44:29,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:44:29,076 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 99 transitions. [2022-12-14 12:44:29,076 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) [2022-12-14 12:44:29,076 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 99 transitions. [2022-12-14 12:44:29,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-12-14 12:44:29,078 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:44:29,078 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] [2022-12-14 12:44:29,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 12:44:29,078 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:44:29,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:44:29,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1167829023, now seen corresponding path program 1 times [2022-12-14 12:44:29,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:44:29,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576785868] [2022-12-14 12:44:29,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:44:29,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:44:29,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:44:29,453 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 12:44:29,453 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:44:29,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576785868] [2022-12-14 12:44:29,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576785868] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:44:29,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:44:29,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 12:44:29,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52875939] [2022-12-14 12:44:29,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:44:29,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 12:44:29,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:44:29,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 12:44:29,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-14 12:44:29,455 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) [2022-12-14 12:44:29,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:44:29,605 INFO L93 Difference]: Finished difference Result 115 states and 149 transitions. [2022-12-14 12:44:29,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 12:44:29,606 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 [2022-12-14 12:44:29,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:44:29,607 INFO L225 Difference]: With dead ends: 115 [2022-12-14 12:44:29,607 INFO L226 Difference]: Without dead ends: 77 [2022-12-14 12:44:29,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-12-14 12:44:29,608 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 24 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:44:29,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 668 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 12:44:29,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-12-14 12:44:29,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2022-12-14 12:44:29,615 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) [2022-12-14 12:44:29,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 98 transitions. [2022-12-14 12:44:29,616 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 98 transitions. Word has length 60 [2022-12-14 12:44:29,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:44:29,616 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 98 transitions. [2022-12-14 12:44:29,616 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) [2022-12-14 12:44:29,617 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 98 transitions. [2022-12-14 12:44:29,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-14 12:44:29,618 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:44:29,618 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] [2022-12-14 12:44:29,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 12:44:29,618 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:44:29,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:44:29,618 INFO L85 PathProgramCache]: Analyzing trace with hash -289710471, now seen corresponding path program 1 times [2022-12-14 12:44:29,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:44:29,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929455615] [2022-12-14 12:44:29,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:44:29,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:44:29,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:44:30,069 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-14 12:44:30,069 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:44:30,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929455615] [2022-12-14 12:44:30,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929455615] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:44:30,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:44:30,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-14 12:44:30,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194458301] [2022-12-14 12:44:30,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:44:30,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 12:44:30,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:44:30,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 12:44:30,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-12-14 12:44:30,072 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) [2022-12-14 12:44:30,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:44:30,357 INFO L93 Difference]: Finished difference Result 109 states and 140 transitions. [2022-12-14 12:44:30,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 12:44:30,357 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 [2022-12-14 12:44:30,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:44:30,358 INFO L225 Difference]: With dead ends: 109 [2022-12-14 12:44:30,358 INFO L226 Difference]: Without dead ends: 92 [2022-12-14 12:44:30,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2022-12-14 12:44:30,360 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 87 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 12:44:30,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 742 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 12:44:30,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-12-14 12:44:30,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 80. [2022-12-14 12:44:30,368 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) [2022-12-14 12:44:30,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 102 transitions. [2022-12-14 12:44:30,369 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 102 transitions. Word has length 64 [2022-12-14 12:44:30,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:44:30,369 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 102 transitions. [2022-12-14 12:44:30,370 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) [2022-12-14 12:44:30,370 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 102 transitions. [2022-12-14 12:44:30,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-12-14 12:44:30,371 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:44:30,371 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] [2022-12-14 12:44:30,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 12:44:30,371 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:44:30,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:44:30,372 INFO L85 PathProgramCache]: Analyzing trace with hash -2069003239, now seen corresponding path program 1 times [2022-12-14 12:44:30,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:44:30,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679686918] [2022-12-14 12:44:30,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:44:30,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:44:30,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:44:30,811 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-14 12:44:30,811 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:44:30,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679686918] [2022-12-14 12:44:30,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679686918] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:44:30,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:44:30,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 12:44:30,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688359538] [2022-12-14 12:44:30,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:44:30,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 12:44:30,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:44:30,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 12:44:30,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-12-14 12:44:30,813 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) [2022-12-14 12:44:31,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:44:31,048 INFO L93 Difference]: Finished difference Result 97 states and 121 transitions. [2022-12-14 12:44:31,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 12:44:31,048 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 [2022-12-14 12:44:31,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:44:31,050 INFO L225 Difference]: With dead ends: 97 [2022-12-14 12:44:31,050 INFO L226 Difference]: Without dead ends: 80 [2022-12-14 12:44:31,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2022-12-14 12:44:31,052 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 46 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 12:44:31,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 643 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 12:44:31,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-12-14 12:44:31,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2022-12-14 12:44:31,058 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) [2022-12-14 12:44:31,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 101 transitions. [2022-12-14 12:44:31,059 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 101 transitions. Word has length 65 [2022-12-14 12:44:31,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:44:31,060 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 101 transitions. [2022-12-14 12:44:31,060 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) [2022-12-14 12:44:31,060 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 101 transitions. [2022-12-14 12:44:31,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-12-14 12:44:31,061 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:44:31,061 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] [2022-12-14 12:44:31,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 12:44:31,061 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:44:31,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:44:31,061 INFO L85 PathProgramCache]: Analyzing trace with hash -205807135, now seen corresponding path program 1 times [2022-12-14 12:44:31,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:44:31,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64919732] [2022-12-14 12:44:31,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:44:31,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:44:31,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:44:31,858 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-14 12:44:31,858 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:44:31,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64919732] [2022-12-14 12:44:31,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64919732] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:44:31,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724465816] [2022-12-14 12:44:31,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:44:31,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:44:31,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6262396c-f792-42f2-9860-22c5b1544a5f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:44:31,860 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6262396c-f792-42f2-9860-22c5b1544a5f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:44:31,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6262396c-f792-42f2-9860-22c5b1544a5f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 12:44:32,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:44:32,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 32 conjunts are in the unsatisfiable core [2022-12-14 12:44:32,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:44:32,402 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 12:44:32,402 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 12:44:32,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724465816] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:44:32,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 12:44:32,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 15 [2022-12-14 12:44:32,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880104486] [2022-12-14 12:44:32,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:44:32,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 12:44:32,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:44:32,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 12:44:32,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2022-12-14 12:44:32,405 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) [2022-12-14 12:44:32,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:44:32,565 INFO L93 Difference]: Finished difference Result 105 states and 127 transitions. [2022-12-14 12:44:32,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 12:44:32,566 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 [2022-12-14 12:44:32,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:44:32,566 INFO L225 Difference]: With dead ends: 105 [2022-12-14 12:44:32,566 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 12:44:32,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 63 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2022-12-14 12:44:32,568 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 20 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:44:32,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 99 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 12:44:32,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 12:44:32,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 12:44:32,570 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) [2022-12-14 12:44:32,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 12:44:32,570 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 68 [2022-12-14 12:44:32,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:44:32,570 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 12:44:32,571 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) [2022-12-14 12:44:32,571 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 12:44:32,571 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 12:44:32,573 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 12:44:32,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6262396c-f792-42f2-9860-22c5b1544a5f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 12:44:32,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6262396c-f792-42f2-9860-22c5b1544a5f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:44:32,777 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 12:44:32,913 INFO L899 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthEXIT(lines 6801 6805) no Hoare annotation was computed. [2022-12-14 12:44:32,913 INFO L899 garLoopResultBuilder]: For program point L6811-1(lines 6811 6812) no Hoare annotation was computed. [2022-12-14 12:44:32,914 INFO L895 garLoopResultBuilder]: At program point L6811(line 6811) 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) .cse0) (< (mod |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1| 18446744073709551616) .cse0))) [2022-12-14 12:44:32,914 INFO L895 garLoopResultBuilder]: At program point L6811-5(lines 6811 6812) 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) .cse0) (< (mod |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1| 18446744073709551616) .cse0))) [2022-12-14 12:44:32,914 INFO L899 garLoopResultBuilder]: For program point L6808-1(line 6808) no Hoare annotation was computed. [2022-12-14 12:44:32,914 INFO L895 garLoopResultBuilder]: At program point L6808(line 6808) 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) .cse0) (< (mod |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1| 18446744073709551616) .cse0))) [2022-12-14 12:44:32,914 INFO L899 garLoopResultBuilder]: For program point L6811-3(line 6811) no Hoare annotation was computed. [2022-12-14 12:44:32,914 INFO L895 garLoopResultBuilder]: At program point L6811-2(line 6811) 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) .cse0) (< (mod |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1| 18446744073709551616) .cse0))) [2022-12-14 12:44:32,915 INFO L895 garLoopResultBuilder]: At program point L6802(line 6802) the Hoare annotation is: (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) [2022-12-14 12:44:32,915 INFO L899 garLoopResultBuilder]: For program point L6803-1(line 6803) no Hoare annotation was computed. [2022-12-14 12:44:32,915 INFO L895 garLoopResultBuilder]: At program point L6803(line 6803) the Hoare annotation is: (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) [2022-12-14 12:44:32,915 INFO L899 garLoopResultBuilder]: For program point L6802-1(line 6802) no Hoare annotation was computed. [2022-12-14 12:44:32,915 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6801 6805) the Hoare annotation is: true [2022-12-14 12:44:32,915 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6883 6888) the Hoare annotation is: true [2022-12-14 12:44:32,915 INFO L899 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6883 6888) no Hoare annotation was computed. [2022-12-14 12:44:32,915 INFO L899 garLoopResultBuilder]: For program point L6884-1(lines 6884 6886) no Hoare annotation was computed. [2022-12-14 12:44:32,916 INFO L895 garLoopResultBuilder]: At program point L6884(lines 6884 6886) the Hoare annotation is: (and (<= |bounded_malloc_#in~size| bounded_malloc_~size) (<= bounded_malloc_~size |bounded_malloc_#in~size|)) [2022-12-14 12:44:32,916 INFO L899 garLoopResultBuilder]: For program point nondet_boolEXIT(line 261) no Hoare annotation was computed. [2022-12-14 12:44:32,916 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 261) the Hoare annotation is: true [2022-12-14 12:44:32,916 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 210 212) the Hoare annotation is: true [2022-12-14 12:44:32,916 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2022-12-14 12:44:32,916 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6890 6892) the Hoare annotation is: true [2022-12-14 12:44:32,916 INFO L899 garLoopResultBuilder]: For program point can_fail_allocatorEXIT(lines 6890 6892) no Hoare annotation was computed. [2022-12-14 12:44:32,916 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6253 6258) the Hoare annotation is: true [2022-12-14 12:44:32,917 INFO L899 garLoopResultBuilder]: For program point aws_string_is_validEXIT(lines 6253 6258) no Hoare annotation was computed. [2022-12-14 12:44:32,917 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2022-12-14 12:44:32,917 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 266) the Hoare annotation is: true [2022-12-14 12:44:32,917 INFO L899 garLoopResultBuilder]: For program point L7455-1(line 7455) no Hoare annotation was computed. [2022-12-14 12:44:32,917 INFO L895 garLoopResultBuilder]: At program point L7455(line 7455) 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)) [2022-12-14 12:44:32,917 INFO L895 garLoopResultBuilder]: At program point L8921(line 8921) the Hoare annotation is: false [2022-12-14 12:44:32,917 INFO L895 garLoopResultBuilder]: At program point L8921-1(line 8921) the Hoare annotation is: false [2022-12-14 12:44:32,917 INFO L899 garLoopResultBuilder]: For program point L8921-2(line 8921) no Hoare annotation was computed. [2022-12-14 12:44:32,917 INFO L899 garLoopResultBuilder]: For program point L7439(line 7439) no Hoare annotation was computed. [2022-12-14 12:44:32,917 INFO L899 garLoopResultBuilder]: For program point L7439-5(line 7439) no Hoare annotation was computed. [2022-12-14 12:44:32,918 INFO L895 garLoopResultBuilder]: At program point L7439-4(line 7439) 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)) [2022-12-14 12:44:32,918 INFO L899 garLoopResultBuilder]: For program point L7439-3(line 7439) no Hoare annotation was computed. [2022-12-14 12:44:32,918 INFO L895 garLoopResultBuilder]: At program point L7439-2(line 7439) 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)) [2022-12-14 12:44:32,918 INFO L895 garLoopResultBuilder]: At program point L8922(line 8922) the Hoare annotation is: false [2022-12-14 12:44:32,918 INFO L899 garLoopResultBuilder]: For program point L8918-1(line 8918) no Hoare annotation was computed. [2022-12-14 12:44:32,918 INFO L899 garLoopResultBuilder]: For program point L8922-1(line 8922) no Hoare annotation was computed. [2022-12-14 12:44:32,918 INFO L895 garLoopResultBuilder]: At program point L8918(line 8918) 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)) [2022-12-14 12:44:32,918 INFO L895 garLoopResultBuilder]: At program point L7440-2(line 7440) 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)) [2022-12-14 12:44:32,918 INFO L899 garLoopResultBuilder]: For program point L7440(line 7440) no Hoare annotation was computed. [2022-12-14 12:44:32,918 INFO L899 garLoopResultBuilder]: For program point L7440-5(line 7440) no Hoare annotation was computed. [2022-12-14 12:44:32,919 INFO L895 garLoopResultBuilder]: At program point L7440-4(line 7440) 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)) [2022-12-14 12:44:32,919 INFO L899 garLoopResultBuilder]: For program point L7440-3(line 7440) no Hoare annotation was computed. [2022-12-14 12:44:32,919 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 12:44:32,919 INFO L899 garLoopResultBuilder]: For program point L8919(lines 8919 8923) no Hoare annotation was computed. [2022-12-14 12:44:32,919 INFO L899 garLoopResultBuilder]: For program point L7441(lines 7441 7445) no Hoare annotation was computed. [2022-12-14 12:44:32,919 INFO L902 garLoopResultBuilder]: At program point L8911(lines 8911 8924) the Hoare annotation is: true [2022-12-14 12:44:32,919 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 12:44:32,919 INFO L899 garLoopResultBuilder]: For program point L7446(lines 7446 7454) no Hoare annotation was computed. [2022-12-14 12:44:32,919 INFO L895 garLoopResultBuilder]: At program point L8916(line 8916) 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)) [2022-12-14 12:44:32,919 INFO L899 garLoopResultBuilder]: For program point L8916-1(lines 8916 8918) no Hoare annotation was computed. [2022-12-14 12:44:32,920 INFO L895 garLoopResultBuilder]: At program point L8916-2(line 8916) 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)) [2022-12-14 12:44:32,920 INFO L895 garLoopResultBuilder]: At program point L8920(line 8920) the Hoare annotation is: false [2022-12-14 12:44:32,920 INFO L895 garLoopResultBuilder]: At program point L8920-1(line 8920) the Hoare annotation is: false [2022-12-14 12:44:32,920 INFO L899 garLoopResultBuilder]: For program point L8920-2(line 8920) no Hoare annotation was computed. [2022-12-14 12:44:32,920 INFO L899 garLoopResultBuilder]: For program point L8912-3(line 8912) no Hoare annotation was computed. [2022-12-14 12:44:32,920 INFO L899 garLoopResultBuilder]: For program point L8912-5(lines 8912 8913) no Hoare annotation was computed. [2022-12-14 12:44:32,920 INFO L899 garLoopResultBuilder]: For program point L8916-3(line 8916) no Hoare annotation was computed. [2022-12-14 12:44:32,920 INFO L902 garLoopResultBuilder]: At program point L8912(line 8912) the Hoare annotation is: true [2022-12-14 12:44:32,920 INFO L899 garLoopResultBuilder]: For program point L8912-1(lines 8912 8913) no Hoare annotation was computed. [2022-12-14 12:44:32,920 INFO L899 garLoopResultBuilder]: For program point L8916-5(lines 8916 8918) no Hoare annotation was computed. [2022-12-14 12:44:32,920 INFO L902 garLoopResultBuilder]: At program point L8912-2(line 8912) the Hoare annotation is: true [2022-12-14 12:44:32,921 INFO L895 garLoopResultBuilder]: At program point aws_string_eq_ignore_case_returnLabel#1(lines 7437 7456) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1#1.offset| 0))) (or (and (= |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1#1.base| 0) .cse0) (and .cse0 (= |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_b~1#1.base| 0) (= 0 |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_b~1#1.offset|) (not (= |ULTIMATE.start_aws_string_eq_ignore_case_~a#1.base| 0)) (= |ULTIMATE.start_aws_string_eq_ignore_case_~b#1.offset| |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_b~1#1.offset|) (= |ULTIMATE.start_aws_string_eq_ignore_case_~b#1.base| |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_b~1#1.base|)))) [2022-12-14 12:44:32,921 INFO L899 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2022-12-14 12:44:32,921 INFO L899 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2022-12-14 12:44:32,921 INFO L899 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2022-12-14 12:44:32,921 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2022-12-14 12:44:32,921 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 222 224) the Hoare annotation is: true [2022-12-14 12:44:32,921 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2022-12-14 12:44:32,921 INFO L899 garLoopResultBuilder]: For program point L7994(lines 7991 8016) no Hoare annotation was computed. [2022-12-14 12:44:32,921 INFO L899 garLoopResultBuilder]: For program point aws_array_eq_ignore_caseFINAL(lines 7986 8016) no Hoare annotation was computed. [2022-12-14 12:44:32,922 INFO L902 garLoopResultBuilder]: At program point L7992-1(line 7992) the Hoare annotation is: true [2022-12-14 12:44:32,922 INFO L902 garLoopResultBuilder]: At program point L7992(line 7992) the Hoare annotation is: true [2022-12-14 12:44:32,922 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 7986 8016) the Hoare annotation is: true [2022-12-14 12:44:32,922 INFO L899 garLoopResultBuilder]: For program point L8006(lines 8006 8010) no Hoare annotation was computed. [2022-12-14 12:44:32,922 INFO L902 garLoopResultBuilder]: At program point L8005-3(lines 8005 8011) the Hoare annotation is: true [2022-12-14 12:44:32,922 INFO L899 garLoopResultBuilder]: For program point aws_array_eq_ignore_caseEXIT(lines 7986 8016) no Hoare annotation was computed. [2022-12-14 12:44:32,927 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-14 12:44:32,928 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 12:44:32,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 12:44:32 BoogieIcfgContainer [2022-12-14 12:44:32,938 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 12:44:32,938 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 12:44:32,938 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 12:44:32,938 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 12:44:32,939 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:44:28" (3/4) ... [2022-12-14 12:44:32,941 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 12:44:32,945 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ensure_string_is_allocated_bounded_length [2022-12-14 12:44:32,945 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2022-12-14 12:44:32,945 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2022-12-14 12:44:32,945 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2022-12-14 12:44:32,945 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-12-14 12:44:32,945 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-12-14 12:44:32,946 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_eq_ignore_case [2022-12-14 12:44:32,946 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2022-12-14 12:44:32,946 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_is_valid [2022-12-14 12:44:32,953 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2022-12-14 12:44:32,953 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-12-14 12:44:32,954 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-14 12:44:32,954 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 12:44:32,973 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\old(max_size) == max_size && 1234551 <= \old(max_size) % 18446744073709551616) && !(str == 0)) && str == 0) && len % 18446744073709551616 < \old(max_size) % 18446744073709551616) && len % 18446744073709551616 < \old(max_size) % 18446744073709551616 [2022-12-14 12:44:33,072 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6262396c-f792-42f2-9860-22c5b1544a5f/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 12:44:33,072 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 12:44:33,073 INFO L158 Benchmark]: Toolchain (without parser) took 7168.87ms. Allocated memory was 111.1MB in the beginning and 255.9MB in the end (delta: 144.7MB). Free memory was 69.1MB in the beginning and 127.7MB in the end (delta: -58.6MB). Peak memory consumption was 85.3MB. Max. memory is 16.1GB. [2022-12-14 12:44:33,073 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 111.1MB. Free memory is still 77.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 12:44:33,073 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1664.65ms. Allocated memory was 111.1MB in the beginning and 146.8MB in the end (delta: 35.7MB). Free memory was 69.1MB in the beginning and 57.0MB in the end (delta: 12.1MB). Peak memory consumption was 70.7MB. Max. memory is 16.1GB. [2022-12-14 12:44:33,073 INFO L158 Benchmark]: Boogie Procedure Inliner took 113.03ms. Allocated memory is still 146.8MB. Free memory was 57.0MB in the beginning and 90.6MB in the end (delta: -33.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 12:44:33,074 INFO L158 Benchmark]: Boogie Preprocessor took 36.59ms. Allocated memory is still 146.8MB. Free memory was 90.6MB in the beginning and 85.5MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 12:44:33,074 INFO L158 Benchmark]: RCFGBuilder took 624.02ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 85.5MB in the beginning and 105.5MB in the end (delta: -20.0MB). Peak memory consumption was 42.6MB. Max. memory is 16.1GB. [2022-12-14 12:44:33,074 INFO L158 Benchmark]: TraceAbstraction took 4589.81ms. Allocated memory was 176.2MB in the beginning and 255.9MB in the end (delta: 79.7MB). Free memory was 104.4MB in the beginning and 147.1MB in the end (delta: -42.7MB). Peak memory consumption was 37.0MB. Max. memory is 16.1GB. [2022-12-14 12:44:33,074 INFO L158 Benchmark]: Witness Printer took 134.46ms. Allocated memory is still 255.9MB. Free memory was 146.1MB in the beginning and 127.7MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 12:44:33,076 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 111.1MB. Free memory is still 77.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1664.65ms. Allocated memory was 111.1MB in the beginning and 146.8MB in the end (delta: 35.7MB). Free memory was 69.1MB in the beginning and 57.0MB in the end (delta: 12.1MB). Peak memory consumption was 70.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 113.03ms. Allocated memory is still 146.8MB. Free memory was 57.0MB in the beginning and 90.6MB in the end (delta: -33.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.59ms. Allocated memory is still 146.8MB. Free memory was 90.6MB in the beginning and 85.5MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 624.02ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 85.5MB in the beginning and 105.5MB in the end (delta: -20.0MB). Peak memory consumption was 42.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4589.81ms. Allocated memory was 176.2MB in the beginning and 255.9MB in the end (delta: 79.7MB). Free memory was 104.4MB in the beginning and 147.1MB in the end (delta: -42.7MB). Peak memory consumption was 37.0MB. Max. memory is 16.1GB. * Witness Printer took 134.46ms. Allocated memory is still 255.9MB. Free memory was 146.1MB in the beginning and 127.7MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * 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]: call to reach_error is unreachable For all program executions holds that 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: 4.5s, OverallIterations: 5, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 209 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 189 mSDsluCounter, 2430 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2078 mSDsCounter, 87 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 879 IncrementalHoareTripleChecker+Invalid, 966 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 87 mSolverCounterUnsat, 352 mSDtfsCounter, 879 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 135 GetRequests, 71 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred in iteration=0, InterpolantAutomatonStates: 48, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 36 LocationsWithAnnotation, 110 PreInvPairs, 122 NumberOfFragments, 225 HoareAnnotationTreeSize, 110 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 36 FomulaSimplificationsInter, 29 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 360 NumberOfCodeBlocks, 360 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 354 ConstructedInterpolants, 0 QuantifiedInterpolants, 865 SizeOfPredicates, 7 NumberOfNonLiveVariables, 865 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: 7437]: Loop Invariant Derived loop invariant: (str_a == 0 && str_a == 0) || (((((str_a == 0 && str_b == 0) && 0 == str_b) && !(a == 0)) && b == str_b) && b == str_b) - InvariantResult [Line: 8005]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6811]: Loop Invariant Derived loop invariant: ((((\old(max_size) == max_size && 1234551 <= \old(max_size) % 18446744073709551616) && !(str == 0)) && str == 0) && len % 18446744073709551616 < \old(max_size) % 18446744073709551616) && len % 18446744073709551616 < \old(max_size) % 18446744073709551616 - InvariantResult [Line: 8911]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-12-14 12:44:33,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6262396c-f792-42f2-9860-22c5b1544a5f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE