./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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.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_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8 --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 Automizer --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 [2022-12-13 18:22:08,198 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 18:22:08,199 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 18:22:08,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 18:22:08,212 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 18:22:08,213 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 18:22:08,214 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 18:22:08,215 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 18:22:08,216 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 18:22:08,216 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 18:22:08,217 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 18:22:08,217 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 18:22:08,218 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 18:22:08,218 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 18:22:08,219 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 18:22:08,220 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 18:22:08,220 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 18:22:08,221 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 18:22:08,222 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 18:22:08,223 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 18:22:08,224 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 18:22:08,225 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 18:22:08,226 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 18:22:08,226 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 18:22:08,228 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 18:22:08,229 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 18:22:08,229 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 18:22:08,229 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 18:22:08,230 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 18:22:08,230 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 18:22:08,230 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 18:22:08,231 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 18:22:08,232 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 18:22:08,232 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 18:22:08,233 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 18:22:08,233 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 18:22:08,233 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 18:22:08,234 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 18:22:08,234 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 18:22:08,234 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 18:22:08,235 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 18:22:08,236 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-12-13 18:22:08,256 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 18:22:08,256 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 18:22:08,257 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 18:22:08,264 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 18:22:08,265 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 18:22:08,265 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 18:22:08,265 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 18:22:08,265 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 18:22:08,265 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 18:22:08,266 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 18:22:08,266 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 18:22:08,266 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 18:22:08,266 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 18:22:08,266 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 18:22:08,266 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 18:22:08,266 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 18:22:08,266 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 18:22:08,267 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 18:22:08,267 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 18:22:08,267 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 18:22:08,267 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 18:22:08,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:22:08,267 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 18:22:08,267 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 18:22:08,267 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 18:22:08,267 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 18:22:08,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 18:22:08,268 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 18:22:08,268 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 18:22:08,268 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 18:22:08,268 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 18:22:08,268 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 18:22:08,268 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bca6bd93b44738cabdb18e627d524296eccdbedf54d5b17ac0472874853eab1e [2022-12-13 18:22:08,463 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 18:22:08,482 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 18:22:08,485 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 18:22:08,486 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 18:22:08,487 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 18:22:08,488 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness_negated.i [2022-12-13 18:22:11,151 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 18:22:11,430 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 18:22:11,431 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness_negated.i [2022-12-13 18:22:11,449 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/data/ecf04ae2f/8fd2a719fc0e48d78e5361d9adb955e6/FLAG9f610196c [2022-12-13 18:22:11,461 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/data/ecf04ae2f/8fd2a719fc0e48d78e5361d9adb955e6 [2022-12-13 18:22:11,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 18:22:11,464 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 18:22:11,464 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 18:22:11,465 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 18:22:11,467 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 18:22:11,468 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:22:11" (1/1) ... [2022-12-13 18:22:11,468 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1927b871 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:22:11, skipping insertion in model container [2022-12-13 18:22:11,468 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:22:11" (1/1) ... [2022-12-13 18:22:11,474 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 18:22:11,543 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 18:22:11,716 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_725c314f-a848-46a5-a695-59abe9171845/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness_negated.i[4499,4512] [2022-12-13 18:22:11,722 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_725c314f-a848-46a5-a695-59abe9171845/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness_negated.i[4559,4572] [2022-12-13 18:22:12,335 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 18:22:12,336 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 18:22:12,336 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 18:22:12,337 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 18:22:12,338 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 18:22:12,348 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 18:22:12,349 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 18:22:12,350 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 18:22:12,350 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 18:22:12,436 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 18:22:12,445 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 18:22:12,446 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 18:22:12,450 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-13 18:22:12,452 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-13 18:22:12,452 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-13 18:22:12,689 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-13 18:22:12,690 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-13 18:22:12,692 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-13 18:22:12,693 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-13 18:22:12,694 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-13 18:22:12,695 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-13 18:22:12,696 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-13 18:22:12,697 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-13 18:22:12,697 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-13 18:22:12,698 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-13 18:22:12,699 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-13 18:22:12,823 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-13 18:22:12,843 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-13 18:22:12,873 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-12-13 18:22:12,883 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-13 18:22:12,913 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-13 18:22:12,919 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 18:22:12,919 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 18:22:12,935 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:22:12,959 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 18:22:12,969 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_725c314f-a848-46a5-a695-59abe9171845/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness_negated.i[4499,4512] [2022-12-13 18:22:12,969 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_725c314f-a848-46a5-a695-59abe9171845/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness_negated.i[4559,4572] [2022-12-13 18:22:12,995 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 18:22:12,996 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 18:22:12,996 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 18:22:12,996 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 18:22:12,997 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 18:22:13,001 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 18:22:13,002 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 18:22:13,002 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 18:22:13,003 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 18:22:13,008 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 18:22:13,008 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 18:22:13,008 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 18:22:13,010 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-13 18:22:13,011 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-13 18:22:13,011 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-13 18:22:13,023 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-13 18:22:13,024 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-13 18:22:13,024 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-13 18:22:13,025 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-13 18:22:13,025 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-13 18:22:13,026 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-13 18:22:13,026 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-13 18:22:13,026 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-13 18:22:13,027 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-13 18:22:13,027 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-13 18:22:13,027 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-13 18:22:13,040 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-13 18:22:13,050 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-13 18:22:13,061 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-12-13 18:22:13,064 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-13 18:22:13,076 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-13 18:22:13,080 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 18:22:13,080 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 18:22:13,089 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:22:13,232 INFO L208 MainTranslator]: Completed translation [2022-12-13 18:22:13,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:22:13 WrapperNode [2022-12-13 18:22:13,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 18:22:13,233 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 18:22:13,233 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 18:22:13,233 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 18:22:13,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:22:13" (1/1) ... [2022-12-13 18:22:13,289 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:22:13" (1/1) ... [2022-12-13 18:22:13,320 INFO L138 Inliner]: procedures = 681, calls = 2271, calls flagged for inlining = 57, calls inlined = 5, statements flattened = 369 [2022-12-13 18:22:13,320 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 18:22:13,320 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 18:22:13,320 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 18:22:13,320 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 18:22:13,329 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:22:13" (1/1) ... [2022-12-13 18:22:13,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:22:13" (1/1) ... [2022-12-13 18:22:13,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:22:13" (1/1) ... [2022-12-13 18:22:13,333 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:22:13" (1/1) ... [2022-12-13 18:22:13,344 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:22:13" (1/1) ... [2022-12-13 18:22:13,347 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:22:13" (1/1) ... [2022-12-13 18:22:13,350 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:22:13" (1/1) ... [2022-12-13 18:22:13,352 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:22:13" (1/1) ... [2022-12-13 18:22:13,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 18:22:13,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 18:22:13,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 18:22:13,358 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 18:22:13,358 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:22:13" (1/1) ... [2022-12-13 18:22:13,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:22:13,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:22:13,383 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 18:22:13,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 18:22:13,408 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2022-12-13 18:22:13,409 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2022-12-13 18:22:13,409 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_ignore_case [2022-12-13 18:22:13,409 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_ignore_case [2022-12-13 18:22:13,409 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2022-12-13 18:22:13,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2022-12-13 18:22:13,409 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-12-13 18:22:13,409 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-12-13 18:22:13,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 18:22:13,409 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-13 18:22:13,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-13 18:22:13,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 18:22:13,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 18:22:13,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 18:22:13,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 18:22:13,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 18:22:13,410 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-12-13 18:22:13,410 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-12-13 18:22:13,410 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-13 18:22:13,410 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-13 18:22:13,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-13 18:22:13,411 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-12-13 18:22:13,411 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-12-13 18:22:13,411 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-12-13 18:22:13,411 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-12-13 18:22:13,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 18:22:13,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 18:22:13,583 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 18:22:13,585 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 18:22:13,888 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 18:22:13,894 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 18:22:13,894 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 18:22:13,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:22:13 BoogieIcfgContainer [2022-12-13 18:22:13,896 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 18:22:13,905 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 18:22:13,905 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 18:22:13,908 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 18:22:13,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 06:22:11" (1/3) ... [2022-12-13 18:22:13,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3209f458 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:22:13, skipping insertion in model container [2022-12-13 18:22:13,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:22:13" (2/3) ... [2022-12-13 18:22:13,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3209f458 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:22:13, skipping insertion in model container [2022-12-13 18:22:13,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:22:13" (3/3) ... [2022-12-13 18:22:13,911 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_string_eq_ignore_case_harness_negated.i [2022-12-13 18:22:13,930 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 18:22:13,930 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 18:22:13,971 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 18:22:13,977 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=PETRI_NET, 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;@20a7f04, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 18:22:13,977 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 18:22:13,981 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 64 states have (on average 1.265625) internal successors, (81), 65 states have internal predecessors, (81), 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) [2022-12-13 18:22:13,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-12-13 18:22:13,992 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:22:13,992 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 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] [2022-12-13 18:22:13,993 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:22:13,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:22:13,998 INFO L85 PathProgramCache]: Analyzing trace with hash -140199032, now seen corresponding path program 1 times [2022-12-13 18:22:14,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:22:14,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013257669] [2022-12-13 18:22:14,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:22:14,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:22:14,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:14,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 18:22:14,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:14,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 18:22:14,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:14,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 18:22:14,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:14,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 18:22:14,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:14,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 18:22:14,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:14,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 18:22:14,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:14,337 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-13 18:22:14,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:22:14,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013257669] [2022-12-13 18:22:14,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013257669] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:22:14,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:22:14,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 18:22:14,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947884359] [2022-12-13 18:22:14,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:22:14,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 18:22:14,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:22:14,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 18:22:14,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 18:22:14,368 INFO L87 Difference]: Start difference. First operand has 98 states, 64 states have (on average 1.265625) internal successors, (81), 65 states have internal predecessors, (81), 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 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-12-13 18:22:14,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:22:14,393 INFO L93 Difference]: Finished difference Result 191 states and 259 transitions. [2022-12-13 18:22:14,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 18:22:14,395 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 48 [2022-12-13 18:22:14,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:22:14,401 INFO L225 Difference]: With dead ends: 191 [2022-12-13 18:22:14,401 INFO L226 Difference]: Without dead ends: 93 [2022-12-13 18:22:14,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 18:22:14,407 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:22:14,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:22:14,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-12-13 18:22:14,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2022-12-13 18:22:14,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 60 states have (on average 1.2166666666666666) internal successors, (73), 61 states have internal predecessors, (73), 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) [2022-12-13 18:22:14,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 118 transitions. [2022-12-13 18:22:14,445 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 118 transitions. Word has length 48 [2022-12-13 18:22:14,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:22:14,447 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 118 transitions. [2022-12-13 18:22:14,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-12-13 18:22:14,447 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 118 transitions. [2022-12-13 18:22:14,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-12-13 18:22:14,450 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:22:14,450 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 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] [2022-12-13 18:22:14,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 18:22:14,450 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:22:14,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:22:14,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1767103160, now seen corresponding path program 1 times [2022-12-13 18:22:14,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:22:14,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203739348] [2022-12-13 18:22:14,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:22:14,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:22:14,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:14,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 18:22:14,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:14,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 18:22:14,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:14,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 18:22:14,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:14,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 18:22:14,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:14,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 18:22:14,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:14,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 18:22:14,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:14,730 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-13 18:22:14,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:22:14,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203739348] [2022-12-13 18:22:14,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203739348] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:22:14,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:22:14,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 18:22:14,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133416107] [2022-12-13 18:22:14,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:22:14,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 18:22:14,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:22:14,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 18:22:14,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 18:22:14,733 INFO L87 Difference]: Start difference. First operand 93 states and 118 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2022-12-13 18:22:14,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:22:14,766 INFO L93 Difference]: Finished difference Result 137 states and 179 transitions. [2022-12-13 18:22:14,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 18:22:14,767 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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 48 [2022-12-13 18:22:14,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:22:14,768 INFO L225 Difference]: With dead ends: 137 [2022-12-13 18:22:14,768 INFO L226 Difference]: Without dead ends: 93 [2022-12-13 18:22:14,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 18:22:14,769 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 10 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:22:14,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 354 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:22:14,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-12-13 18:22:14,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2022-12-13 18:22:14,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 60 states have (on average 1.2) internal successors, (72), 61 states have internal predecessors, (72), 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) [2022-12-13 18:22:14,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 117 transitions. [2022-12-13 18:22:14,782 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 117 transitions. Word has length 48 [2022-12-13 18:22:14,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:22:14,783 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 117 transitions. [2022-12-13 18:22:14,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2022-12-13 18:22:14,783 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 117 transitions. [2022-12-13 18:22:14,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-12-13 18:22:14,785 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:22:14,785 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:22:14,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 18:22:14,785 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:22:14,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:22:14,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1847125036, now seen corresponding path program 1 times [2022-12-13 18:22:14,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:22:14,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227076502] [2022-12-13 18:22:14,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:22:14,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:22:14,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:15,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 18:22:15,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:15,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 18:22:15,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:15,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:22:15,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:15,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 18:22:15,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:15,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 18:22:15,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:15,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:22:15,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:15,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 18:22:15,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:15,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 18:22:15,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:15,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 18:22:15,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:15,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 18:22:15,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:15,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 18:22:15,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:15,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-12-13 18:22:15,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:15,850 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 18:22:15,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:22:15,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227076502] [2022-12-13 18:22:15,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227076502] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:22:15,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [346381233] [2022-12-13 18:22:15,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:22:15,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:22:15,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:22:15,852 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:22:15,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 18:22:16,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:16,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 843 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-13 18:22:16,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:22:16,409 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-12-13 18:22:16,409 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 18:22:16,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [346381233] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:22:16,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 18:22:16,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [17] total 29 [2022-12-13 18:22:16,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60310724] [2022-12-13 18:22:16,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:22:16,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 18:22:16,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:22:16,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 18:22:16,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=750, Unknown=0, NotChecked=0, Total=812 [2022-12-13 18:22:16,411 INFO L87 Difference]: Start difference. First operand 93 states and 117 transitions. Second operand has 14 states, 14 states have (on average 3.0) internal successors, (42), 12 states have internal predecessors, (42), 4 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 6 states have call predecessors, (12), 3 states have call successors, (12) [2022-12-13 18:22:16,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:22:16,677 INFO L93 Difference]: Finished difference Result 118 states and 149 transitions. [2022-12-13 18:22:16,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 18:22:16,678 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 12 states have internal predecessors, (42), 4 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 6 states have call predecessors, (12), 3 states have call successors, (12) Word has length 82 [2022-12-13 18:22:16,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:22:16,679 INFO L225 Difference]: With dead ends: 118 [2022-12-13 18:22:16,680 INFO L226 Difference]: Without dead ends: 99 [2022-12-13 18:22:16,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=94, Invalid=1096, Unknown=0, NotChecked=0, Total=1190 [2022-12-13 18:22:16,681 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 35 mSDsluCounter, 1121 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 1221 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 18:22:16,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 1221 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 18:22:16,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-12-13 18:22:16,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 98. [2022-12-13 18:22:16,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 64 states have (on average 1.203125) internal successors, (77), 66 states have internal predecessors, (77), 23 states have call successors, (23), 9 states have call predecessors, (23), 10 states have return successors, (25), 22 states have call predecessors, (25), 22 states have call successors, (25) [2022-12-13 18:22:16,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 125 transitions. [2022-12-13 18:22:16,688 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 125 transitions. Word has length 82 [2022-12-13 18:22:16,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:22:16,688 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 125 transitions. [2022-12-13 18:22:16,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 12 states have internal predecessors, (42), 4 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 6 states have call predecessors, (12), 3 states have call successors, (12) [2022-12-13 18:22:16,689 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 125 transitions. [2022-12-13 18:22:16,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-12-13 18:22:16,690 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:22:16,690 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:22:16,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 18:22:16,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:22:16,891 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:22:16,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:22:16,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1638495634, now seen corresponding path program 1 times [2022-12-13 18:22:16,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:22:16,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69895520] [2022-12-13 18:22:16,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:22:16,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:22:16,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:17,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 18:22:17,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:17,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 18:22:17,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:17,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:22:17,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:17,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 18:22:17,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:17,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 18:22:17,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:17,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:22:17,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:17,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 18:22:17,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:17,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 18:22:17,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:17,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 18:22:17,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:17,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 18:22:17,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:17,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 18:22:17,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:17,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-12-13 18:22:17,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:17,721 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 18:22:17,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:22:17,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69895520] [2022-12-13 18:22:17,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69895520] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:22:17,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1196116667] [2022-12-13 18:22:17,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:22:17,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:22:17,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:22:17,722 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:22:17,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 18:22:17,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:17,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 848 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-13 18:22:17,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:22:18,033 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-13 18:22:18,033 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 18:22:18,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1196116667] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:22:18,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 18:22:18,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [17] total 22 [2022-12-13 18:22:18,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769921560] [2022-12-13 18:22:18,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:22:18,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 18:22:18,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:22:18,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 18:22:18,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=416, Unknown=0, NotChecked=0, Total=462 [2022-12-13 18:22:18,036 INFO L87 Difference]: Start difference. First operand 98 states and 125 transitions. Second operand has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 9 states have internal predecessors, (45), 4 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) [2022-12-13 18:22:18,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:22:18,176 INFO L93 Difference]: Finished difference Result 150 states and 193 transitions. [2022-12-13 18:22:18,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 18:22:18,176 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 9 states have internal predecessors, (45), 4 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) Word has length 82 [2022-12-13 18:22:18,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:22:18,178 INFO L225 Difference]: With dead ends: 150 [2022-12-13 18:22:18,178 INFO L226 Difference]: Without dead ends: 98 [2022-12-13 18:22:18,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2022-12-13 18:22:18,179 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 28 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 18:22:18,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 998 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 18:22:18,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-12-13 18:22:18,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2022-12-13 18:22:18,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 64 states have (on average 1.1875) internal successors, (76), 66 states have internal predecessors, (76), 23 states have call successors, (23), 9 states have call predecessors, (23), 10 states have return successors, (25), 22 states have call predecessors, (25), 22 states have call successors, (25) [2022-12-13 18:22:18,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 124 transitions. [2022-12-13 18:22:18,191 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 124 transitions. Word has length 82 [2022-12-13 18:22:18,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:22:18,192 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 124 transitions. [2022-12-13 18:22:18,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 9 states have internal predecessors, (45), 4 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) [2022-12-13 18:22:18,192 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 124 transitions. [2022-12-13 18:22:18,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-12-13 18:22:18,194 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:22:18,195 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1] [2022-12-13 18:22:18,201 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 18:22:18,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:22:18,395 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:22:18,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:22:18,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1735619123, now seen corresponding path program 1 times [2022-12-13 18:22:18,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:22:18,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850217894] [2022-12-13 18:22:18,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:22:18,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:22:18,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:18,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 18:22:18,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:18,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 18:22:18,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:18,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:22:18,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:18,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 18:22:18,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:19,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 18:22:19,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:19,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:22:19,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:19,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 18:22:19,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:19,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 18:22:19,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:19,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 18:22:19,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:19,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 18:22:19,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:19,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 18:22:19,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:19,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-12-13 18:22:19,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:19,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 18:22:19,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:19,267 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-12-13 18:22:19,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:22:19,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850217894] [2022-12-13 18:22:19,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850217894] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:22:19,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178076443] [2022-12-13 18:22:19,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:22:19,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:22:19,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:22:19,269 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:22:19,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 18:22:19,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:19,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 871 conjuncts, 15 conjunts are in the unsatisfiable core [2022-12-13 18:22:19,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:22:19,774 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-13 18:22:19,775 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 18:22:19,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [178076443] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:22:19,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 18:22:19,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [21] total 34 [2022-12-13 18:22:19,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15369879] [2022-12-13 18:22:19,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:22:19,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-13 18:22:19,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:22:19,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-13 18:22:19,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=1048, Unknown=0, NotChecked=0, Total=1122 [2022-12-13 18:22:19,777 INFO L87 Difference]: Start difference. First operand 98 states and 124 transitions. Second operand has 15 states, 15 states have (on average 3.466666666666667) internal successors, (52), 13 states have internal predecessors, (52), 5 states have call successors, (14), 2 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2022-12-13 18:22:20,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:22:20,091 INFO L93 Difference]: Finished difference Result 152 states and 194 transitions. [2022-12-13 18:22:20,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 18:22:20,091 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.466666666666667) internal successors, (52), 13 states have internal predecessors, (52), 5 states have call successors, (14), 2 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) Word has length 91 [2022-12-13 18:22:20,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:22:20,093 INFO L225 Difference]: With dead ends: 152 [2022-12-13 18:22:20,093 INFO L226 Difference]: Without dead ends: 99 [2022-12-13 18:22:20,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=110, Invalid=1530, Unknown=0, NotChecked=0, Total=1640 [2022-12-13 18:22:20,095 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 57 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 1128 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 18:22:20,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 1128 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 18:22:20,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-12-13 18:22:20,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 98. [2022-12-13 18:22:20,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 64 states have (on average 1.1875) internal successors, (76), 66 states have internal predecessors, (76), 23 states have call successors, (23), 9 states have call predecessors, (23), 10 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2022-12-13 18:22:20,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 123 transitions. [2022-12-13 18:22:20,105 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 123 transitions. Word has length 91 [2022-12-13 18:22:20,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:22:20,105 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 123 transitions. [2022-12-13 18:22:20,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.466666666666667) internal successors, (52), 13 states have internal predecessors, (52), 5 states have call successors, (14), 2 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2022-12-13 18:22:20,105 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 123 transitions. [2022-12-13 18:22:20,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-12-13 18:22:20,107 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:22:20,107 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1] [2022-12-13 18:22:20,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-13 18:22:20,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:22:20,308 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:22:20,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:22:20,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1663232565, now seen corresponding path program 1 times [2022-12-13 18:22:20,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:22:20,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542433723] [2022-12-13 18:22:20,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:22:20,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:22:20,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:20,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 18:22:20,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:20,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 18:22:20,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:20,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:22:20,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:20,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 18:22:20,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:20,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 18:22:20,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:21,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:22:21,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:21,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 18:22:21,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:21,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 18:22:21,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:21,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 18:22:21,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:21,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 18:22:21,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:21,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 18:22:21,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:21,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-12-13 18:22:21,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:21,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 18:22:21,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:21,123 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-12-13 18:22:21,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:22:21,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542433723] [2022-12-13 18:22:21,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542433723] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:22:21,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1239096195] [2022-12-13 18:22:21,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:22:21,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:22:21,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:22:21,125 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:22:21,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 18:22:21,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:21,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 876 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-13 18:22:21,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:22:21,463 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-12-13 18:22:21,463 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 18:22:21,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1239096195] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:22:21,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 18:22:21,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [19] total 26 [2022-12-13 18:22:21,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926424774] [2022-12-13 18:22:21,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:22:21,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 18:22:21,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:22:21,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 18:22:21,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2022-12-13 18:22:21,465 INFO L87 Difference]: Start difference. First operand 98 states and 123 transitions. Second operand has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 11 states have internal predecessors, (49), 6 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 8 states have call predecessors, (13), 6 states have call successors, (13) [2022-12-13 18:22:21,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:22:21,676 INFO L93 Difference]: Finished difference Result 140 states and 179 transitions. [2022-12-13 18:22:21,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 18:22:21,676 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 11 states have internal predecessors, (49), 6 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 8 states have call predecessors, (13), 6 states have call successors, (13) Word has length 91 [2022-12-13 18:22:21,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:22:21,678 INFO L225 Difference]: With dead ends: 140 [2022-12-13 18:22:21,678 INFO L226 Difference]: Without dead ends: 113 [2022-12-13 18:22:21,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=896, Unknown=0, NotChecked=0, Total=992 [2022-12-13 18:22:21,679 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 63 mSDsluCounter, 938 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 1045 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 18:22:21,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 1045 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 18:22:21,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2022-12-13 18:22:21,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 101. [2022-12-13 18:22:21,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 66 states have (on average 1.1818181818181819) internal successors, (78), 68 states have internal predecessors, (78), 24 states have call successors, (24), 9 states have call predecessors, (24), 10 states have return successors, (25), 23 states have call predecessors, (25), 23 states have call successors, (25) [2022-12-13 18:22:21,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 127 transitions. [2022-12-13 18:22:21,687 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 127 transitions. Word has length 91 [2022-12-13 18:22:21,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:22:21,687 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 127 transitions. [2022-12-13 18:22:21,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 11 states have internal predecessors, (49), 6 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 8 states have call predecessors, (13), 6 states have call successors, (13) [2022-12-13 18:22:21,687 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 127 transitions. [2022-12-13 18:22:21,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-12-13 18:22:21,688 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:22:21,689 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1] [2022-12-13 18:22:21,695 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 18:22:21,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:22:21,889 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:22:21,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:22:21,890 INFO L85 PathProgramCache]: Analyzing trace with hash -2062733139, now seen corresponding path program 1 times [2022-12-13 18:22:21,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:22:21,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380159705] [2022-12-13 18:22:21,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:22:21,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:22:21,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:22,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 18:22:22,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:22,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 18:22:22,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:22,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:22:22,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:22,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 18:22:22,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:22,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 18:22:22,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:22,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:22:22,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:22,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 18:22:22,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:22,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 18:22:22,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:22,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 18:22:22,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:22,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 18:22:22,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:22,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 18:22:22,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:22,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-12-13 18:22:22,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:22,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 18:22:22,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:22,590 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-12-13 18:22:22,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:22:22,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380159705] [2022-12-13 18:22:22,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380159705] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:22:22,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1080261603] [2022-12-13 18:22:22,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:22:22,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:22:22,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:22:22,592 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:22:22,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 18:22:22,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:22,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 874 conjuncts, 15 conjunts are in the unsatisfiable core [2022-12-13 18:22:22,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:22:22,840 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-12-13 18:22:22,841 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 18:22:22,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1080261603] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:22:22,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 18:22:22,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [18] total 20 [2022-12-13 18:22:22,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469965294] [2022-12-13 18:22:22,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:22:22,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 18:22:22,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:22:22,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 18:22:22,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2022-12-13 18:22:22,843 INFO L87 Difference]: Start difference. First operand 101 states and 127 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 4 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2022-12-13 18:22:22,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:22:22,954 INFO L93 Difference]: Finished difference Result 147 states and 183 transitions. [2022-12-13 18:22:22,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 18:22:22,954 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 4 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 92 [2022-12-13 18:22:22,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:22:22,955 INFO L225 Difference]: With dead ends: 147 [2022-12-13 18:22:22,955 INFO L226 Difference]: Without dead ends: 98 [2022-12-13 18:22:22,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=448, Unknown=0, NotChecked=0, Total=506 [2022-12-13 18:22:22,956 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 20 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:22:22,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 375 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:22:22,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-12-13 18:22:22,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2022-12-13 18:22:22,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 64 states have (on average 1.171875) internal successors, (75), 66 states have internal predecessors, (75), 23 states have call successors, (23), 9 states have call predecessors, (23), 10 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2022-12-13 18:22:22,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 122 transitions. [2022-12-13 18:22:22,968 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 122 transitions. Word has length 92 [2022-12-13 18:22:22,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:22:22,968 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 122 transitions. [2022-12-13 18:22:22,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 4 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2022-12-13 18:22:22,968 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 122 transitions. [2022-12-13 18:22:22,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-12-13 18:22:22,969 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:22:22,969 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:22:22,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-13 18:22:23,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-13 18:22:23,171 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:22:23,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:22:23,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1221822596, now seen corresponding path program 1 times [2022-12-13 18:22:23,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:22:23,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931913999] [2022-12-13 18:22:23,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:22:23,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:22:23,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:23,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 18:22:23,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:23,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 18:22:23,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:23,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:22:23,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:23,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 18:22:23,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:23,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 18:22:23,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:23,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:22:23,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:23,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 18:22:23,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:23,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 18:22:23,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:23,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 18:22:23,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:23,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 18:22:23,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:23,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 18:22:23,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:23,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-12-13 18:22:23,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:23,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 18:22:23,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:23,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 18:22:23,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:23,959 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-12-13 18:22:23,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:22:23,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931913999] [2022-12-13 18:22:23,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931913999] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:22:23,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733202191] [2022-12-13 18:22:23,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:22:23,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:22:23,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:22:23,960 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:22:23,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 18:22:24,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:24,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 899 conjuncts, 28 conjunts are in the unsatisfiable core [2022-12-13 18:22:24,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:22:24,428 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-12-13 18:22:24,428 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 18:22:24,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733202191] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:22:24,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 18:22:24,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [22] total 36 [2022-12-13 18:22:24,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275052728] [2022-12-13 18:22:24,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:22:24,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-13 18:22:24,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:22:24,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-13 18:22:24,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1180, Unknown=0, NotChecked=0, Total=1260 [2022-12-13 18:22:24,430 INFO L87 Difference]: Start difference. First operand 98 states and 122 transitions. Second operand has 16 states, 16 states have (on average 3.5) internal successors, (56), 14 states have internal predecessors, (56), 6 states have call successors, (15), 2 states have call predecessors, (15), 5 states have return successors, (14), 8 states have call predecessors, (14), 6 states have call successors, (14) [2022-12-13 18:22:24,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:22:24,708 INFO L93 Difference]: Finished difference Result 170 states and 223 transitions. [2022-12-13 18:22:24,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 18:22:24,708 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.5) internal successors, (56), 14 states have internal predecessors, (56), 6 states have call successors, (15), 2 states have call predecessors, (15), 5 states have return successors, (14), 8 states have call predecessors, (14), 6 states have call successors, (14) Word has length 100 [2022-12-13 18:22:24,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:22:24,709 INFO L225 Difference]: With dead ends: 170 [2022-12-13 18:22:24,709 INFO L226 Difference]: Without dead ends: 117 [2022-12-13 18:22:24,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=122, Invalid=1770, Unknown=0, NotChecked=0, Total=1892 [2022-12-13 18:22:24,710 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 65 mSDsluCounter, 1198 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 1302 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 18:22:24,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 1302 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 18:22:24,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2022-12-13 18:22:24,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 102. [2022-12-13 18:22:24,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 67 states have (on average 1.164179104477612) internal successors, (78), 68 states have internal predecessors, (78), 24 states have call successors, (24), 9 states have call predecessors, (24), 10 states have return successors, (25), 24 states have call predecessors, (25), 23 states have call successors, (25) [2022-12-13 18:22:24,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 127 transitions. [2022-12-13 18:22:24,716 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 127 transitions. Word has length 100 [2022-12-13 18:22:24,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:22:24,717 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 127 transitions. [2022-12-13 18:22:24,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.5) internal successors, (56), 14 states have internal predecessors, (56), 6 states have call successors, (15), 2 states have call predecessors, (15), 5 states have return successors, (14), 8 states have call predecessors, (14), 6 states have call successors, (14) [2022-12-13 18:22:24,717 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 127 transitions. [2022-12-13 18:22:24,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-12-13 18:22:24,718 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:22:24,718 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:22:24,723 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 18:22:24,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-13 18:22:24,920 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:22:24,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:22:24,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1283862210, now seen corresponding path program 1 times [2022-12-13 18:22:24,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:22:24,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801878216] [2022-12-13 18:22:24,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:22:24,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:22:25,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:25,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 18:22:25,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:25,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 18:22:25,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:25,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:22:25,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:25,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 18:22:25,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:25,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 18:22:25,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:25,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:22:25,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:25,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 18:22:25,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:25,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 18:22:25,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:25,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 18:22:25,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:25,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 18:22:25,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:25,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 18:22:25,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:25,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-12-13 18:22:25,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:25,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 18:22:25,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:25,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 18:22:25,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:25,672 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-12-13 18:22:25,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:22:25,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801878216] [2022-12-13 18:22:25,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801878216] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:22:25,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [585614031] [2022-12-13 18:22:25,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:22:25,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:22:25,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:22:25,673 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:22:25,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 18:22:25,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:22:25,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 904 conjuncts, 32 conjunts are in the unsatisfiable core [2022-12-13 18:22:25,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:22:26,051 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-12-13 18:22:26,051 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 18:22:26,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [585614031] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:22:26,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 18:22:26,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [13] total 18 [2022-12-13 18:22:26,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272390236] [2022-12-13 18:22:26,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:22:26,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 18:22:26,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:22:26,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 18:22:26,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2022-12-13 18:22:26,053 INFO L87 Difference]: Start difference. First operand 102 states and 127 transitions. Second operand has 10 states, 8 states have (on average 6.125) internal successors, (49), 9 states have internal predecessors, (49), 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) [2022-12-13 18:22:26,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:22:26,180 INFO L93 Difference]: Finished difference Result 135 states and 161 transitions. [2022-12-13 18:22:26,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 18:22:26,181 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.125) internal successors, (49), 9 states have internal predecessors, (49), 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 100 [2022-12-13 18:22:26,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:22:26,181 INFO L225 Difference]: With dead ends: 135 [2022-12-13 18:22:26,181 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 18:22:26,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 119 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462 [2022-12-13 18:22:26,183 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 29 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 18:22:26,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 219 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 18:22:26,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 18:22:26,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 18:22:26,184 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) [2022-12-13 18:22:26,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 18:22:26,184 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 100 [2022-12-13 18:22:26,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:22:26,184 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 18:22:26,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.125) internal successors, (49), 9 states have internal predecessors, (49), 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) [2022-12-13 18:22:26,184 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 18:22:26,184 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 18:22:26,186 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 18:22:26,193 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 18:22:26,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:22:26,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-13 18:22:26,629 INFO L899 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthEXIT(lines 6801 6805) no Hoare annotation was computed. [2022-12-13 18:22:26,629 INFO L899 garLoopResultBuilder]: For program point L6811-1(lines 6811 6812) no Hoare annotation was computed. [2022-12-13 18:22:26,630 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 (<= 0 |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.offset|) (= |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)) (< (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))) [2022-12-13 18:22:26,630 INFO L899 garLoopResultBuilder]: For program point L6811-5(lines 6811 6812) no Hoare annotation was computed. [2022-12-13 18:22:26,630 INFO L895 garLoopResultBuilder]: At program point ensure_string_is_allocated_returnLabel#1(lines 6807 6817) the Hoare annotation is: (let ((.cse0 (mod |ensure_string_is_allocated_bounded_length_#in~max_size#1| 18446744073709551616))) (and (<= 0 |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.offset|) (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (<= 0 |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_#res#1.offset|) (<= 1234551 .cse0) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (< (mod |ensure_string_is_allocated_bounded_length_~len~1#1| 18446744073709551616) .cse0) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_#res#1.base| 0)) (< (mod |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1| 18446744073709551616) .cse0))) [2022-12-13 18:22:26,630 INFO L899 garLoopResultBuilder]: For program point L6808-1(line 6808) no Hoare annotation was computed. [2022-12-13 18:22:26,630 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))) [2022-12-13 18:22:26,630 INFO L899 garLoopResultBuilder]: For program point L6811-3(line 6811) no Hoare annotation was computed. [2022-12-13 18:22:26,630 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 (<= 0 |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.offset|) (= |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)) (< (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))) [2022-12-13 18:22:26,630 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|) [2022-12-13 18:22:26,630 INFO L899 garLoopResultBuilder]: For program point L6803-1(line 6803) no Hoare annotation was computed. [2022-12-13 18:22:26,630 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|) [2022-12-13 18:22:26,631 INFO L899 garLoopResultBuilder]: For program point L6802-1(line 6802) no Hoare annotation was computed. [2022-12-13 18:22:26,631 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6801 6805) the Hoare annotation is: true [2022-12-13 18:22:26,631 INFO L899 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthFINAL(lines 6801 6805) no Hoare annotation was computed. [2022-12-13 18:22:26,631 INFO L899 garLoopResultBuilder]: For program point bounded_mallocFINAL(lines 6883 6888) no Hoare annotation was computed. [2022-12-13 18:22:26,631 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6883 6888) the Hoare annotation is: true [2022-12-13 18:22:26,631 INFO L899 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6883 6888) no Hoare annotation was computed. [2022-12-13 18:22:26,631 INFO L899 garLoopResultBuilder]: For program point L6884-1(lines 6884 6886) no Hoare annotation was computed. [2022-12-13 18:22:26,631 INFO L895 garLoopResultBuilder]: At program point L6884(lines 6884 6886) the Hoare annotation is: (= |bounded_malloc_#in~size| bounded_malloc_~size) [2022-12-13 18:22:26,631 INFO L899 garLoopResultBuilder]: For program point nondet_boolFINAL(line 261) no Hoare annotation was computed. [2022-12-13 18:22:26,631 INFO L899 garLoopResultBuilder]: For program point nondet_boolEXIT(line 261) no Hoare annotation was computed. [2022-12-13 18:22:26,631 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 261) the Hoare annotation is: true [2022-12-13 18:22:26,631 INFO L899 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2022-12-13 18:22:26,631 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 210 212) the Hoare annotation is: true [2022-12-13 18:22:26,632 INFO L899 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2022-12-13 18:22:26,632 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2022-12-13 18:22:26,632 INFO L899 garLoopResultBuilder]: For program point can_fail_allocatorFINAL(lines 6890 6892) no Hoare annotation was computed. [2022-12-13 18:22:26,632 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6890 6892) the Hoare annotation is: true [2022-12-13 18:22:26,632 INFO L899 garLoopResultBuilder]: For program point can_fail_allocatorEXIT(lines 6890 6892) no Hoare annotation was computed. [2022-12-13 18:22:26,632 INFO L899 garLoopResultBuilder]: For program point L6257-2(line 6257) no Hoare annotation was computed. [2022-12-13 18:22:26,632 INFO L899 garLoopResultBuilder]: For program point L6257-3(line 6257) no Hoare annotation was computed. [2022-12-13 18:22:26,632 INFO L899 garLoopResultBuilder]: For program point L6257(line 6257) no Hoare annotation was computed. [2022-12-13 18:22:26,632 INFO L899 garLoopResultBuilder]: For program point aws_string_is_validFINAL(lines 6253 6258) no Hoare annotation was computed. [2022-12-13 18:22:26,632 INFO L899 garLoopResultBuilder]: For program point L6257-5(line 6257) no Hoare annotation was computed. [2022-12-13 18:22:26,632 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6253 6258) the Hoare annotation is: true [2022-12-13 18:22:26,632 INFO L899 garLoopResultBuilder]: For program point aws_string_is_validEXIT(lines 6253 6258) no Hoare annotation was computed. [2022-12-13 18:22:26,633 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2022-12-13 18:22:26,633 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tFINAL(line 266) no Hoare annotation was computed. [2022-12-13 18:22:26,633 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 266) the Hoare annotation is: true [2022-12-13 18:22:26,633 INFO L899 garLoopResultBuilder]: For program point L7455-1(line 7455) no Hoare annotation was computed. [2022-12-13 18:22:26,633 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)) [2022-12-13 18:22:26,633 INFO L895 garLoopResultBuilder]: At program point L8921(line 8921) the Hoare annotation is: false [2022-12-13 18:22:26,633 INFO L895 garLoopResultBuilder]: At program point L8921-1(line 8921) the Hoare annotation is: false [2022-12-13 18:22:26,633 INFO L899 garLoopResultBuilder]: For program point L8921-2(line 8921) no Hoare annotation was computed. [2022-12-13 18:22:26,633 INFO L899 garLoopResultBuilder]: For program point L7439(line 7439) no Hoare annotation was computed. [2022-12-13 18:22:26,633 INFO L899 garLoopResultBuilder]: For program point L7439-5(line 7439) no Hoare annotation was computed. [2022-12-13 18:22:26,633 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)) [2022-12-13 18:22:26,633 INFO L899 garLoopResultBuilder]: For program point L7439-3(line 7439) no Hoare annotation was computed. [2022-12-13 18:22:26,633 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)) [2022-12-13 18:22:26,634 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(line 8925) the Hoare annotation is: true [2022-12-13 18:22:26,634 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-13 18:22:26,634 INFO L895 garLoopResultBuilder]: At program point L8922(line 8922) the Hoare annotation is: false [2022-12-13 18:22:26,634 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-13 18:22:26,634 INFO L899 garLoopResultBuilder]: For program point L8918-1(line 8918) no Hoare annotation was computed. [2022-12-13 18:22:26,634 INFO L899 garLoopResultBuilder]: For program point L8922-1(line 8922) no Hoare annotation was computed. [2022-12-13 18:22:26,634 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)) [2022-12-13 18:22:26,634 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)) [2022-12-13 18:22:26,634 INFO L899 garLoopResultBuilder]: For program point L7440(line 7440) no Hoare annotation was computed. [2022-12-13 18:22:26,634 INFO L899 garLoopResultBuilder]: For program point L7440-5(line 7440) no Hoare annotation was computed. [2022-12-13 18:22:26,634 INFO L895 garLoopResultBuilder]: At program point L7440-4(line 7440) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1#1.base| 0))) (or (and .cse0 (= |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1#1.offset| 0)) (and (not .cse0) (<= 0 |ULTIMATE.start_aws_string_eq_ignore_case_~a#1.offset|) (= 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_#t~short684#1| (= |ULTIMATE.start_aws_string_eq_ignore_case_~b#1.base| 0) (<= 0 |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~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|)))) [2022-12-13 18:22:26,634 INFO L899 garLoopResultBuilder]: For program point L7440-3(line 7440) no Hoare annotation was computed. [2022-12-13 18:22:26,635 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-13 18:22:26,635 INFO L899 garLoopResultBuilder]: For program point L8919(lines 8919 8923) no Hoare annotation was computed. [2022-12-13 18:22:26,635 INFO L899 garLoopResultBuilder]: For program point L7441(lines 7441 7445) no Hoare annotation was computed. [2022-12-13 18:22:26,635 INFO L899 garLoopResultBuilder]: For program point L8911(lines 8911 8924) no Hoare annotation was computed. [2022-12-13 18:22:26,635 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-13 18:22:26,635 INFO L899 garLoopResultBuilder]: For program point L7446(lines 7446 7454) no Hoare annotation was computed. [2022-12-13 18:22:26,635 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)) [2022-12-13 18:22:26,635 INFO L899 garLoopResultBuilder]: For program point L8916-1(lines 8916 8918) no Hoare annotation was computed. [2022-12-13 18:22:26,635 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)) [2022-12-13 18:22:26,635 INFO L895 garLoopResultBuilder]: At program point L8920(line 8920) the Hoare annotation is: false [2022-12-13 18:22:26,635 INFO L895 garLoopResultBuilder]: At program point L8920-1(line 8920) the Hoare annotation is: false [2022-12-13 18:22:26,635 INFO L899 garLoopResultBuilder]: For program point L8920-2(line 8920) no Hoare annotation was computed. [2022-12-13 18:22:26,635 INFO L899 garLoopResultBuilder]: For program point L8912-3(line 8912) no Hoare annotation was computed. [2022-12-13 18:22:26,636 INFO L899 garLoopResultBuilder]: For program point L8912-5(lines 8912 8913) no Hoare annotation was computed. [2022-12-13 18:22:26,636 INFO L899 garLoopResultBuilder]: For program point L8916-3(line 8916) no Hoare annotation was computed. [2022-12-13 18:22:26,636 INFO L902 garLoopResultBuilder]: At program point L8912(line 8912) the Hoare annotation is: true [2022-12-13 18:22:26,636 INFO L899 garLoopResultBuilder]: For program point L8912-1(lines 8912 8913) no Hoare annotation was computed. [2022-12-13 18:22:26,636 INFO L899 garLoopResultBuilder]: For program point L8916-5(lines 8916 8918) no Hoare annotation was computed. [2022-12-13 18:22:26,636 INFO L902 garLoopResultBuilder]: At program point L8912-2(line 8912) the Hoare annotation is: true [2022-12-13 18:22:26,636 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.base| 0))) (or (and .cse0 (= |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1#1.offset| 0)) (and (not .cse0) (= |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_b~1#1.base| 0) (<= 0 |ULTIMATE.start_aws_string_eq_ignore_case_~a#1.offset|) (= 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|) (<= 0 |ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~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|)))) [2022-12-13 18:22:26,636 INFO L899 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2022-12-13 18:22:26,636 INFO L899 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2022-12-13 18:22:26,636 INFO L899 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2022-12-13 18:22:26,636 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2022-12-13 18:22:26,636 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 222 224) the Hoare annotation is: true [2022-12-13 18:22:26,637 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2022-12-13 18:22:26,637 INFO L899 garLoopResultBuilder]: For program point L8005-4(lines 8005 8011) no Hoare annotation was computed. [2022-12-13 18:22:26,637 INFO L899 garLoopResultBuilder]: For program point L7994(lines 7991 8016) no Hoare annotation was computed. [2022-12-13 18:22:26,637 INFO L899 garLoopResultBuilder]: For program point aws_array_eq_ignore_caseFINAL(lines 7986 8016) no Hoare annotation was computed. [2022-12-13 18:22:26,637 INFO L902 garLoopResultBuilder]: At program point L7992-1(line 7992) the Hoare annotation is: true [2022-12-13 18:22:26,637 INFO L902 garLoopResultBuilder]: At program point L7992(line 7992) the Hoare annotation is: true [2022-12-13 18:22:26,637 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 7986 8016) the Hoare annotation is: true [2022-12-13 18:22:26,637 INFO L899 garLoopResultBuilder]: For program point L8006(lines 8006 8010) no Hoare annotation was computed. [2022-12-13 18:22:26,637 INFO L902 garLoopResultBuilder]: At program point L8005-3(lines 8005 8011) the Hoare annotation is: true [2022-12-13 18:22:26,637 INFO L899 garLoopResultBuilder]: For program point aws_array_eq_ignore_caseEXIT(lines 7986 8016) no Hoare annotation was computed. [2022-12-13 18:22:26,637 INFO L899 garLoopResultBuilder]: For program point L8005-2(lines 8005 8011) no Hoare annotation was computed. [2022-12-13 18:22:26,640 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:22:26,642 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 18:22:26,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 06:22:26 BoogieIcfgContainer [2022-12-13 18:22:26,650 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 18:22:26,651 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 18:22:26,651 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 18:22:26,651 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 18:22:26,651 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:22:13" (3/4) ... [2022-12-13 18:22:26,653 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 18:22:26,658 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ensure_string_is_allocated_bounded_length [2022-12-13 18:22:26,658 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2022-12-13 18:22:26,658 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2022-12-13 18:22:26,658 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2022-12-13 18:22:26,658 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-12-13 18:22:26,658 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-12-13 18:22:26,658 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_eq_ignore_case [2022-12-13 18:22:26,658 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2022-12-13 18:22:26,658 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_is_valid [2022-12-13 18:22:26,665 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2022-12-13 18:22:26,665 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-12-13 18:22:26,666 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 18:22:26,666 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 18:22:26,684 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((0 <= str && \old(max_size) == max_size) && 0 <= \result) && 1234551 <= \old(max_size) % 18446744073709551616) && !(str == 0)) && len % 18446744073709551616 < \old(max_size) % 18446744073709551616) && !(\result == 0)) && len % 18446744073709551616 < \old(max_size) % 18446744073709551616 [2022-12-13 18:22:26,749 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 18:22:26,749 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 18:22:26,749 INFO L158 Benchmark]: Toolchain (without parser) took 15285.74ms. Allocated memory was 127.9MB in the beginning and 287.3MB in the end (delta: 159.4MB). Free memory was 85.3MB in the beginning and 90.7MB in the end (delta: -5.4MB). Peak memory consumption was 155.3MB. Max. memory is 16.1GB. [2022-12-13 18:22:26,749 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 127.9MB. Free memory is still 94.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:22:26,750 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1768.36ms. Allocated memory was 127.9MB in the beginning and 165.7MB in the end (delta: 37.7MB). Free memory was 85.3MB in the beginning and 109.3MB in the end (delta: -24.0MB). Peak memory consumption was 80.1MB. Max. memory is 16.1GB. [2022-12-13 18:22:26,750 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.75ms. Allocated memory is still 165.7MB. Free memory was 109.3MB in the beginning and 99.9MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 18:22:26,750 INFO L158 Benchmark]: Boogie Preprocessor took 36.81ms. Allocated memory is still 165.7MB. Free memory was 99.9MB in the beginning and 95.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 18:22:26,750 INFO L158 Benchmark]: RCFGBuilder took 538.77ms. Allocated memory is still 165.7MB. Free memory was 95.7MB in the beginning and 56.9MB in the end (delta: 38.8MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-12-13 18:22:26,750 INFO L158 Benchmark]: TraceAbstraction took 12745.18ms. Allocated memory was 165.7MB in the beginning and 287.3MB in the end (delta: 121.6MB). Free memory was 110.5MB in the beginning and 109.5MB in the end (delta: 988.5kB). Peak memory consumption was 121.6MB. Max. memory is 16.1GB. [2022-12-13 18:22:26,751 INFO L158 Benchmark]: Witness Printer took 97.99ms. Allocated memory is still 287.3MB. Free memory was 109.5MB in the beginning and 90.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 18:22:26,752 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 127.9MB. Free memory is still 94.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1768.36ms. Allocated memory was 127.9MB in the beginning and 165.7MB in the end (delta: 37.7MB). Free memory was 85.3MB in the beginning and 109.3MB in the end (delta: -24.0MB). Peak memory consumption was 80.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.75ms. Allocated memory is still 165.7MB. Free memory was 109.3MB in the beginning and 99.9MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.81ms. Allocated memory is still 165.7MB. Free memory was 99.9MB in the beginning and 95.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 538.77ms. Allocated memory is still 165.7MB. Free memory was 95.7MB in the beginning and 56.9MB in the end (delta: 38.8MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * TraceAbstraction took 12745.18ms. Allocated memory was 165.7MB in the beginning and 287.3MB in the end (delta: 121.6MB). Free memory was 110.5MB in the beginning and 109.5MB in the end (delta: 988.5kB). Peak memory consumption was 121.6MB. Max. memory is 16.1GB. * Witness Printer took 97.99ms. Allocated memory is still 287.3MB. Free memory was 109.5MB in the beginning and 90.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. 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, 98 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.7s, OverallIterations: 9, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 347 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 307 mSDsluCounter, 6766 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5866 mSDsCounter, 115 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1383 IncrementalHoareTripleChecker+Invalid, 1498 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 115 mSolverCounterUnsat, 900 mSDtfsCounter, 1383 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 982 GetRequests, 769 SyntacticMatches, 2 SemanticMatches, 211 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=102occurred in iteration=8, InterpolantAutomatonStates: 91, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 29 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 36 LocationsWithAnnotation, 180 PreInvPairs, 202 NumberOfFragments, 264 HoareAnnotationTreeSize, 180 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 36 FomulaSimplificationsInter, 23 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 7.4s InterpolantComputationTime, 1372 NumberOfCodeBlocks, 1372 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1356 ConstructedInterpolants, 0 QuantifiedInterpolants, 3486 SizeOfPredicates, 58 NumberOfNonLiveVariables, 6115 ConjunctsInSsa, 147 ConjunctsInUnsatCore, 16 InterpolantComputations, 9 PerfectInterpolantSequences, 644/740 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: 6807]: Loop Invariant Derived loop invariant: ((((((0 <= str && \old(max_size) == max_size) && 0 <= \result) && 1234551 <= \old(max_size) % 18446744073709551616) && !(str == 0)) && len % 18446744073709551616 < \old(max_size) % 18446744073709551616) && !(\result == 0)) && len % 18446744073709551616 < \old(max_size) % 18446744073709551616 - InvariantResult [Line: 8925]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7437]: Loop Invariant Derived loop invariant: (str_a == 0 && str_a == 0) || (((((((!(str_a == 0) && str_b == 0) && 0 <= a) && 0 == str_b) && !(a == 0)) && b == str_b) && 0 <= str_a) && b == str_b) - InvariantResult [Line: 8005]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-12-13 18:22:26,766 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_725c314f-a848-46a5-a695-59abe9171845/bin/uautomizer-uyxdKDjOR8/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