./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_2e41a444-31a7-4f50-9b08-d6b4ad57d127/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e41a444-31a7-4f50-9b08-d6b4ad57d127/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e41a444-31a7-4f50-9b08-d6b4ad57d127/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e41a444-31a7-4f50-9b08-d6b4ad57d127/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e41a444-31a7-4f50-9b08-d6b4ad57d127/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e41a444-31a7-4f50-9b08-d6b4ad57d127/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2359aa88e8e7d743df9393581b2f3fdb25ac15a45b4f8f680bad72fb64c83223 --- 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-38b53e6 [2022-11-26 00:37:33,006 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:37:33,008 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:37:33,047 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:37:33,048 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:37:33,049 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:37:33,050 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:37:33,061 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:37:33,063 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:37:33,070 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:37:33,071 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:37:33,072 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:37:33,073 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:37:33,074 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:37:33,075 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:37:33,076 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:37:33,077 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:37:33,078 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:37:33,084 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:37:33,093 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:37:33,097 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:37:33,100 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:37:33,101 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:37:33,102 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:37:33,106 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:37:33,107 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:37:33,107 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:37:33,108 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:37:33,108 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:37:33,109 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:37:33,110 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:37:33,111 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:37:33,112 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:37:33,112 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:37:33,114 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:37:33,114 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:37:33,115 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:37:33,115 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:37:33,115 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:37:33,116 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:37:33,117 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:37:33,118 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e41a444-31a7-4f50-9b08-d6b4ad57d127/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-26 00:37:33,144 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:37:33,144 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:37:33,144 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:37:33,145 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:37:33,145 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:37:33,146 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:37:33,146 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:37:33,146 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:37:33,146 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:37:33,147 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:37:33,147 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:37:33,147 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:37:33,147 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:37:33,147 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:37:33,148 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:37:33,148 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:37:33,148 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:37:33,148 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:37:33,149 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:37:33,149 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:37:33,149 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:37:33,150 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:37:33,150 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:37:33,150 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:37:33,150 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:37:33,150 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:37:33,151 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:37:33,151 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:37:33,151 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:37:33,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:37:33,152 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:37:33,152 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:37:33,152 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:37:33,152 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:37:33,152 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:37:33,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:37:33,153 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:37:33,153 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:37:33,153 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e41a444-31a7-4f50-9b08-d6b4ad57d127/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e41a444-31a7-4f50-9b08-d6b4ad57d127/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2359aa88e8e7d743df9393581b2f3fdb25ac15a45b4f8f680bad72fb64c83223 [2022-11-26 00:37:33,416 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:37:33,437 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:37:33,440 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:37:33,441 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:37:33,441 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:37:33,443 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e41a444-31a7-4f50-9b08-d6b4ad57d127/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i [2022-11-26 00:37:36,462 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:37:37,085 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:37:37,086 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e41a444-31a7-4f50-9b08-d6b4ad57d127/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i [2022-11-26 00:37:37,136 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e41a444-31a7-4f50-9b08-d6b4ad57d127/bin/utaipan-ByfvJB40ur/data/c676d216f/f1caf60fb7d14ad19d29ea1a7ce2114d/FLAG6cfe06d04 [2022-11-26 00:37:37,155 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e41a444-31a7-4f50-9b08-d6b4ad57d127/bin/utaipan-ByfvJB40ur/data/c676d216f/f1caf60fb7d14ad19d29ea1a7ce2114d [2022-11-26 00:37:37,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:37:37,161 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:37:37,164 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:37:37,164 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:37:37,168 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:37:37,168 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:37:37" (1/1) ... [2022-11-26 00:37:37,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f382fc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:37:37, skipping insertion in model container [2022-11-26 00:37:37,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:37:37" (1/1) ... [2022-11-26 00:37:37,179 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:37:37,308 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:37:37,673 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_2e41a444-31a7-4f50-9b08-d6b4ad57d127/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i[4489,4502] [2022-11-26 00:37:37,682 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_2e41a444-31a7-4f50-9b08-d6b4ad57d127/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i[4549,4562] [2022-11-26 00:37:38,827 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:38,837 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:38,838 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:38,839 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:38,840 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:38,856 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:38,858 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:38,861 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:38,864 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:38,866 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:38,879 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:38,880 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:38,881 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:38,972 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:37:38,973 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:37:38,974 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:37:38,980 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-26 00:37:38,982 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-26 00:37:38,983 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-26 00:37:39,443 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-26 00:37:39,445 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-26 00:37:39,446 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-26 00:37:39,448 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-26 00:37:39,449 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-26 00:37:39,451 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-26 00:37:39,452 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-26 00:37:39,453 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-26 00:37:39,454 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-26 00:37:39,455 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-26 00:37:39,455 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-26 00:37:39,660 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-26 00:37:39,729 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:37:40,095 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:40,096 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:40,132 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:40,137 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:40,145 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:40,146 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:40,170 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:40,171 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:40,172 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:40,172 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:40,173 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:40,173 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:40,174 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:40,226 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:37:40,234 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:37:40,278 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:37:40,305 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_2e41a444-31a7-4f50-9b08-d6b4ad57d127/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i[4489,4502] [2022-11-26 00:37:40,306 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_2e41a444-31a7-4f50-9b08-d6b4ad57d127/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i[4549,4562] [2022-11-26 00:37:40,402 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:40,403 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:40,403 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:40,404 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:40,405 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:40,416 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:40,416 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:40,417 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:40,418 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:40,420 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:40,420 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:40,420 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:40,421 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:40,427 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:37:40,427 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:37:40,428 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:37:40,430 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-26 00:37:40,431 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-26 00:37:40,432 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-26 00:37:40,449 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-26 00:37:40,450 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-26 00:37:40,451 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-26 00:37:40,451 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-26 00:37:40,452 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-26 00:37:40,453 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-26 00:37:40,453 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-26 00:37:40,454 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-26 00:37:40,454 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-26 00:37:40,455 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-26 00:37:40,455 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-26 00:37:40,477 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-26 00:37:40,564 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:37:40,629 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:40,629 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:40,643 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:40,645 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:40,647 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:40,648 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:40,656 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:40,658 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:40,658 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:40,659 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:40,659 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:40,661 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:40,661 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:40,684 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:37:40,686 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:37:40,939 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:37:40,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:37:40 WrapperNode [2022-11-26 00:37:40,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:37:40,940 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:37:40,941 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:37:40,941 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:37:40,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:37:40" (1/1) ... [2022-11-26 00:37:41,061 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:37:40" (1/1) ... [2022-11-26 00:37:41,135 INFO L138 Inliner]: procedures = 774, calls = 2482, calls flagged for inlining = 67, calls inlined = 5, statements flattened = 526 [2022-11-26 00:37:41,136 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:37:41,136 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:37:41,137 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:37:41,137 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:37:41,150 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:37:40" (1/1) ... [2022-11-26 00:37:41,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:37:40" (1/1) ... [2022-11-26 00:37:41,181 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:37:40" (1/1) ... [2022-11-26 00:37:41,182 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:37:40" (1/1) ... [2022-11-26 00:37:41,239 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:37:40" (1/1) ... [2022-11-26 00:37:41,250 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:37:40" (1/1) ... [2022-11-26 00:37:41,269 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:37:40" (1/1) ... [2022-11-26 00:37:41,274 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:37:40" (1/1) ... [2022-11-26 00:37:41,294 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:37:41,301 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:37:41,302 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:37:41,302 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:37:41,303 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:37:40" (1/1) ... [2022-11-26 00:37:41,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:37:41,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e41a444-31a7-4f50-9b08-d6b4ad57d127/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:37:41,342 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e41a444-31a7-4f50-9b08-d6b4ad57d127/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:37:41,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e41a444-31a7-4f50-9b08-d6b4ad57d127/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:37:41,388 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2022-11-26 00:37:41,389 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2022-11-26 00:37:41,389 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2022-11-26 00:37:41,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2022-11-26 00:37:41,389 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-26 00:37:41,390 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-26 00:37:41,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:37:41,390 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-26 00:37:41,390 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-26 00:37:41,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:37:41,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:37:41,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 00:37:41,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:37:41,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:37:41,391 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-26 00:37:41,392 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-26 00:37:41,392 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2022-11-26 00:37:41,395 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2022-11-26 00:37:41,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:37:41,396 INFO L130 BoogieDeclarations]: Found specification of procedure hashlittle2 [2022-11-26 00:37:41,396 INFO L138 BoogieDeclarations]: Found implementation of procedure hashlittle2 [2022-11-26 00:37:41,397 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-26 00:37:41,397 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-26 00:37:41,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:37:41,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:37:41,398 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-26 00:37:41,403 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-26 00:37:41,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-26 00:37:41,403 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-26 00:37:41,403 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-26 00:37:41,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:37:41,787 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:37:41,789 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:37:43,943 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume !true; [2022-11-26 00:37:43,957 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:37:44,236 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:37:44,236 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-26 00:37:44,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:37:44 BoogieIcfgContainer [2022-11-26 00:37:44,239 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:37:44,242 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:37:44,242 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:37:44,245 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:37:44,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:37:37" (1/3) ... [2022-11-26 00:37:44,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@758b6fce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:37:44, skipping insertion in model container [2022-11-26 00:37:44,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:37:40" (2/3) ... [2022-11-26 00:37:44,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@758b6fce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:37:44, skipping insertion in model container [2022-11-26 00:37:44,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:37:44" (3/3) ... [2022-11-26 00:37:44,250 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_hash_string_harness.i [2022-11-26 00:37:44,269 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:37:44,269 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 00:37:44,334 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:37:44,345 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@19925eb4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:37:44,345 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-26 00:37:44,350 INFO L276 IsEmpty]: Start isEmpty. Operand has 88 states, 62 states have (on average 1.5) internal successors, (93), 62 states have internal predecessors, (93), 15 states have call successors, (15), 10 states have call predecessors, (15), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-26 00:37:44,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-26 00:37:44,362 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:37:44,363 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:37:44,364 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:37:44,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:37:44,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1922620881, now seen corresponding path program 1 times [2022-11-26 00:37:44,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:37:44,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889698128] [2022-11-26 00:37:44,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:37:44,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:37:45,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:37:47,754 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-26 00:37:47,755 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:37:47,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889698128] [2022-11-26 00:37:47,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889698128] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:37:47,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [974021786] [2022-11-26 00:37:47,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:37:47,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:37:47,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e41a444-31a7-4f50-9b08-d6b4ad57d127/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:37:47,763 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e41a444-31a7-4f50-9b08-d6b4ad57d127/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:37:47,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e41a444-31a7-4f50-9b08-d6b4ad57d127/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:37:48,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:37:48,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 2119 conjuncts, 137 conjunts are in the unsatisfiable core [2022-11-26 00:37:48,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:37:48,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-26 00:37:50,859 INFO L321 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2022-11-26 00:37:50,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 43 [2022-11-26 00:37:51,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:51,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:51,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:51,630 INFO L321 Elim1Store]: treesize reduction 72, result has 40.5 percent of original size [2022-11-26 00:37:51,631 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 144 [2022-11-26 00:37:51,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2022-11-26 00:37:51,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-26 00:37:51,720 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-26 00:37:51,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:51,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:52,018 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-26 00:37:52,019 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 102 treesize of output 70 [2022-11-26 00:37:52,063 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-26 00:37:52,066 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:37:53,514 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-26 00:37:53,514 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:37:53,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [974021786] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:37:53,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:37:53,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [10] total 36 [2022-11-26 00:37:53,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564125079] [2022-11-26 00:37:53,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:37:53,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-26 00:37:53,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:37:53,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-26 00:37:53,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1179, Unknown=1, NotChecked=0, Total=1260 [2022-11-26 00:37:53,564 INFO L87 Difference]: Start difference. First operand has 88 states, 62 states have (on average 1.5) internal successors, (93), 62 states have internal predecessors, (93), 15 states have call successors, (15), 10 states have call predecessors, (15), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 28 states, 17 states have (on average 1.8823529411764706) internal successors, (32), 19 states have internal predecessors, (32), 9 states have call successors, (14), 4 states have call predecessors, (14), 8 states have return successors, (13), 10 states have call predecessors, (13), 8 states have call successors, (13) [2022-11-26 00:38:00,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:38:00,353 INFO L93 Difference]: Finished difference Result 139 states and 201 transitions. [2022-11-26 00:38:00,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-26 00:38:00,355 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 17 states have (on average 1.8823529411764706) internal successors, (32), 19 states have internal predecessors, (32), 9 states have call successors, (14), 4 states have call predecessors, (14), 8 states have return successors, (13), 10 states have call predecessors, (13), 8 states have call successors, (13) Word has length 61 [2022-11-26 00:38:00,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:38:00,400 INFO L225 Difference]: With dead ends: 139 [2022-11-26 00:38:00,400 INFO L226 Difference]: Without dead ends: 86 [2022-11-26 00:38:00,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=215, Invalid=3089, Unknown=2, NotChecked=0, Total=3306 [2022-11-26 00:38:00,423 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 199 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 2525 mSolverCounterSat, 47 mSolverCounterUnsat, 50 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 2622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 2525 IncrementalHoareTripleChecker+Invalid, 50 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:38:00,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 468 Invalid, 2622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 2525 Invalid, 50 Unknown, 0 Unchecked, 4.6s Time] [2022-11-26 00:38:00,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-11-26 00:38:00,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2022-11-26 00:38:00,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 61 states have (on average 1.4754098360655739) internal successors, (90), 61 states have internal predecessors, (90), 15 states have call successors, (15), 10 states have call predecessors, (15), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-26 00:38:00,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 119 transitions. [2022-11-26 00:38:00,528 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 119 transitions. Word has length 61 [2022-11-26 00:38:00,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:38:00,530 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 119 transitions. [2022-11-26 00:38:00,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 17 states have (on average 1.8823529411764706) internal successors, (32), 19 states have internal predecessors, (32), 9 states have call successors, (14), 4 states have call predecessors, (14), 8 states have return successors, (13), 10 states have call predecessors, (13), 8 states have call successors, (13) [2022-11-26 00:38:00,530 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 119 transitions. [2022-11-26 00:38:00,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-26 00:38:00,538 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:38:00,539 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:38:00,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e41a444-31a7-4f50-9b08-d6b4ad57d127/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-26 00:38:00,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e41a444-31a7-4f50-9b08-d6b4ad57d127/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-26 00:38:00,750 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:38:00,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:38:00,751 INFO L85 PathProgramCache]: Analyzing trace with hash -996752226, now seen corresponding path program 1 times [2022-11-26 00:38:00,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:38:00,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479258212] [2022-11-26 00:38:00,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:38:00,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:38:01,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:38:03,754 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-26 00:38:03,754 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:38:03,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479258212] [2022-11-26 00:38:03,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479258212] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:38:03,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667409773] [2022-11-26 00:38:03,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:38:03,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:38:03,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e41a444-31a7-4f50-9b08-d6b4ad57d127/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:38:03,759 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e41a444-31a7-4f50-9b08-d6b4ad57d127/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:38:03,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e41a444-31a7-4f50-9b08-d6b4ad57d127/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 00:38:04,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:38:04,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 2132 conjuncts, 132 conjunts are in the unsatisfiable core [2022-11-26 00:38:04,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:38:04,535 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-26 00:38:06,818 INFO L321 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2022-11-26 00:38:06,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 43 [2022-11-26 00:38:07,265 WARN L859 $PredicateComparison]: unable to prove that (exists ((hashlittle2_~pb.base Int) (hashlittle2_~pc.base Int)) (and (<= |c_hashlittle2_#in~pb.base| hashlittle2_~pb.base) (exists ((v_ArrVal_238 (Array Int Int)) (|hashlittle2_~#u~1.base| Int) (v_ArrVal_237 (Array Int Int)) (v_ArrVal_239 (Array Int Int))) (and (< |c_#StackHeapBarrier| |hashlittle2_~#u~1.base|) (= (store (store (store |c_old(#memory_int)| |hashlittle2_~#u~1.base| v_ArrVal_237) hashlittle2_~pc.base v_ArrVal_238) hashlittle2_~pb.base v_ArrVal_239) |c_#memory_int|))) (<= |c_hashlittle2_#in~pc.base| hashlittle2_~pc.base))) is different from true [2022-11-26 00:38:07,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:07,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:07,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:07,375 INFO L321 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2022-11-26 00:38:07,375 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 79 treesize of output 86 [2022-11-26 00:38:08,929 INFO L321 Elim1Store]: treesize reduction 168, result has 24.0 percent of original size [2022-11-26 00:38:08,930 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 21 case distinctions, treesize of input 187 treesize of output 171 [2022-11-26 00:38:09,291 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-26 00:38:09,291 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:38:12,095 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_aws_hash_string_~str~3#1.offset| 8)) (.cse5 (not (= |c_ULTIMATE.start_aws_hash_string_~str~3#1.base| 0)))) (and (forall ((v_hashlittle2_~pc.base_10 Int)) (or (forall ((v_hashlittle2_~pb.base_10 Int)) (or (forall ((|v_hashlittle2_~#u~1.base_18| Int)) (or (not (< |c_#StackHeapBarrier| |v_hashlittle2_~#u~1.base_18|)) (forall ((v_ArrVal_248 (Array Int Int)) (v_ArrVal_247 (Array Int Int)) (v_ArrVal_246 (Array Int Int))) (let ((.cse1 (select (store (store (store |c_#memory_int| |v_hashlittle2_~#u~1.base_18| v_ArrVal_247) v_hashlittle2_~pc.base_10 v_ArrVal_248) v_hashlittle2_~pb.base_10 v_ArrVal_246) |c_ULTIMATE.start_aws_hash_string_~str~3#1.base|))) (let ((.cse0 (mod (select .cse1 .cse2) 18446744073709551616))) (or (not (<= .cse0 9223372036854775807)) (= (mod (select .cse1 (+ 16 |c_ULTIMATE.start_aws_hash_string_~str~3#1.offset| .cse0)) 256) 0))))))) (< v_hashlittle2_~pb.base_10 |c_ULTIMATE.start_aws_hash_string_~#b~6#1.base|))) (< v_hashlittle2_~pc.base_10 |c_ULTIMATE.start_aws_hash_string_~#c~8#1.base|))) (forall ((v_hashlittle2_~pc.base_10 Int)) (or (forall ((v_hashlittle2_~pb.base_10 Int)) (or (forall ((|v_hashlittle2_~#u~1.base_18| Int)) (or (not (< |c_#StackHeapBarrier| |v_hashlittle2_~#u~1.base_18|)) (forall ((v_ArrVal_248 (Array Int Int)) (v_ArrVal_247 (Array Int Int)) (v_ArrVal_246 (Array Int Int))) (let ((.cse4 (select (store (store (store |c_#memory_int| |v_hashlittle2_~#u~1.base_18| v_ArrVal_247) v_hashlittle2_~pc.base_10 v_ArrVal_248) v_hashlittle2_~pb.base_10 v_ArrVal_246) |c_ULTIMATE.start_aws_hash_string_~str~3#1.base|))) (let ((.cse3 (mod (select .cse4 .cse2) 18446744073709551616))) (or (<= .cse3 9223372036854775807) (= (mod (select .cse4 (+ |c_ULTIMATE.start_aws_hash_string_~str~3#1.offset| (- 18446744073709551600) .cse3)) 256) 0))))))) (< v_hashlittle2_~pb.base_10 |c_ULTIMATE.start_aws_hash_string_~#b~6#1.base|))) (< v_hashlittle2_~pc.base_10 |c_ULTIMATE.start_aws_hash_string_~#c~8#1.base|))) (or (not (= |c_ULTIMATE.start_aws_hash_string_~str~3#1.offset| 0)) .cse5) (or (not (= 0 (+ 16 |c_ULTIMATE.start_aws_hash_string_~str~3#1.offset|))) (forall ((v_ArrVal_248 (Array Int Int)) (|v_hashlittle2_~#u~1.base_18| Int) (v_hashlittle2_~pb.base_10 Int) (v_ArrVal_247 (Array Int Int)) (v_hashlittle2_~pc.base_10 Int) (v_ArrVal_246 (Array Int Int))) (or (not (< |c_#StackHeapBarrier| |v_hashlittle2_~#u~1.base_18|)) (= (mod (+ (select (select (store (store (store |c_#memory_int| |v_hashlittle2_~#u~1.base_18| v_ArrVal_247) v_hashlittle2_~pc.base_10 v_ArrVal_248) v_hashlittle2_~pb.base_10 v_ArrVal_246) |c_ULTIMATE.start_aws_hash_string_~str~3#1.base|) .cse2) 1) 18446744073709551616) 0) (< v_hashlittle2_~pb.base_10 |c_ULTIMATE.start_aws_hash_string_~#b~6#1.base|) (< v_hashlittle2_~pc.base_10 |c_ULTIMATE.start_aws_hash_string_~#c~8#1.base|))) .cse5))) is different from false [2022-11-26 00:38:12,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [667409773] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:38:12,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2070672393] [2022-11-26 00:38:12,122 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2022-11-26 00:38:12,122 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:38:12,126 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:38:12,131 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:38:12,132 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:38:17,267 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-26 00:38:17,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-26 00:38:17,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:17,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:17,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:17,357 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 17 [2022-11-26 00:38:17,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:17,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:17,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:17,388 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 17 [2022-11-26 00:38:17,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:17,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:17,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:17,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 17 [2022-11-26 00:38:17,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:17,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:17,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:17,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:17,454 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 40 [2022-11-26 00:38:19,129 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:38:22,913 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:38:25,126 INFO L197 IcfgInterpreter]: Interpreting procedure ensure_string_is_allocated_bounded_length with input of size 2423 for LOIs [2022-11-26 00:39:16,441 INFO L197 IcfgInterpreter]: Interpreting procedure nondet_uint64_t with input of size 2408 for LOIs [2022-11-26 00:39:18,440 INFO L197 IcfgInterpreter]: Interpreting procedure bounded_malloc with input of size 2432 for LOIs [2022-11-26 00:39:41,495 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 2474 for LOIs [2022-11-26 00:39:58,290 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:40:38,231 WARN L233 SmtUtils]: Spent 38.02s on a formula simplification that was a NOOP. DAG size: 2408 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:41:19,613 WARN L233 SmtUtils]: Spent 39.32s on a formula simplification that was a NOOP. DAG size: 2423 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:42:00,865 WARN L233 SmtUtils]: Spent 39.06s on a formula simplification that was a NOOP. DAG size: 2425 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:44:02,033 WARN L233 SmtUtils]: Spent 1.90m on a formula simplification. DAG size of input: 2474 DAG size of output: 2421 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:46:00,361 WARN L233 SmtUtils]: Spent 1.92m on a formula simplification. DAG size of input: 2479 DAG size of output: 2438 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:47:23,231 WARN L233 SmtUtils]: Spent 1.34m on a formula simplification. DAG size of input: 2446 DAG size of output: 2439 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:48:47,138 WARN L233 SmtUtils]: Spent 1.35m on a formula simplification. DAG size of input: 2450 DAG size of output: 2443 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:50:07,115 WARN L233 SmtUtils]: Spent 1.29m on a formula simplification. DAG size of input: 2432 DAG size of output: 2426 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:51:27,246 WARN L233 SmtUtils]: Spent 1.29m on a formula simplification. DAG size of input: 2434 DAG size of output: 2428 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:51:27,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2070672393] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:51:27,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-26 00:51:27,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10, 28] total 45 [2022-11-26 00:51:27,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328098172] [2022-11-26 00:51:27,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:51:27,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:51:27,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:51:27,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:51:27,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=2206, Unknown=2, NotChecked=190, Total=2550 [2022-11-26 00:51:27,292 INFO L87 Difference]: Start difference. First operand 86 states and 119 transitions. Second operand has 11 states, 8 states have (on average 3.75) internal successors, (30), 6 states have internal predecessors, (30), 5 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 5 states have call successors, (13) [2022-11-26 00:51:30,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:51:30,009 INFO L93 Difference]: Finished difference Result 88 states and 120 transitions. [2022-11-26 00:51:30,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-26 00:51:30,012 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 3.75) internal successors, (30), 6 states have internal predecessors, (30), 5 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 5 states have call successors, (13) Word has length 62 [2022-11-26 00:51:30,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:51:30,013 INFO L225 Difference]: With dead ends: 88 [2022-11-26 00:51:30,013 INFO L226 Difference]: Without dead ends: 0 [2022-11-26 00:51:30,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 92 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 691.8s TimeCoverageRelationStatistics Valid=152, Invalid=2206, Unknown=2, NotChecked=190, Total=2550 [2022-11-26 00:51:30,016 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:51:30,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-26 00:51:30,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-26 00:51:30,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-26 00:51:30,017 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) [2022-11-26 00:51:30,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-26 00:51:30,017 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 62 [2022-11-26 00:51:30,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:51:30,018 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-26 00:51:30,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 3.75) internal successors, (30), 6 states have internal predecessors, (30), 5 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 5 states have call successors, (13) [2022-11-26 00:51:30,018 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-26 00:51:30,018 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-26 00:51:30,021 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-26 00:51:30,031 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e41a444-31a7-4f50-9b08-d6b4ad57d127/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-26 00:51:30,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e41a444-31a7-4f50-9b08-d6b4ad57d127/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:51:30,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.