./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b 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_9851c260-1672-4c05-bdb2-baf60b757b30/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9851c260-1672-4c05-bdb2-baf60b757b30/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9851c260-1672-4c05-bdb2-baf60b757b30/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9851c260-1672-4c05-bdb2-baf60b757b30/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9851c260-1672-4c05-bdb2-baf60b757b30/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9851c260-1672-4c05-bdb2-baf60b757b30/bin/utaipan-6cKwYrpEi9 --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 bc5ed5fb850d9a2c9d9a14514ffc7939afe81a277edfb59aefd3c5f66024eda8 --- 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-6b4ec56 [2022-11-20 20:25:38,283 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 20:25:38,286 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 20:25:38,334 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 20:25:38,335 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 20:25:38,338 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 20:25:38,341 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 20:25:38,343 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 20:25:38,345 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 20:25:38,350 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 20:25:38,351 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 20:25:38,352 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 20:25:38,353 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 20:25:38,353 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 20:25:38,354 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 20:25:38,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 20:25:38,356 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 20:25:38,357 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 20:25:38,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 20:25:38,360 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 20:25:38,361 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 20:25:38,366 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 20:25:38,368 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 20:25:38,369 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 20:25:38,383 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 20:25:38,384 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 20:25:38,384 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 20:25:38,385 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 20:25:38,385 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 20:25:38,386 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 20:25:38,387 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 20:25:38,387 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 20:25:38,388 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 20:25:38,389 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 20:25:38,390 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 20:25:38,390 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 20:25:38,391 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 20:25:38,391 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 20:25:38,391 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 20:25:38,392 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 20:25:38,393 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 20:25:38,397 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9851c260-1672-4c05-bdb2-baf60b757b30/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-20 20:25:38,437 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 20:25:38,438 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 20:25:38,438 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 20:25:38,439 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 20:25:38,439 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 20:25:38,440 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 20:25:38,440 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 20:25:38,440 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 20:25:38,440 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 20:25:38,441 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 20:25:38,442 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 20:25:38,442 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 20:25:38,442 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 20:25:38,442 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 20:25:38,443 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 20:25:38,443 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 20:25:38,443 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 20:25:38,443 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 20:25:38,445 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 20:25:38,445 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 20:25:38,445 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 20:25:38,446 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 20:25:38,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 20:25:38,446 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 20:25:38,446 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 20:25:38,447 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 20:25:38,447 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 20:25:38,448 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 20:25:38,448 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 20:25:38,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:25:38,448 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 20:25:38,449 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 20:25:38,449 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 20:25:38,449 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 20:25:38,450 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 20:25:38,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 20:25:38,450 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 20:25:38,450 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 20:25:38,451 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_9851c260-1672-4c05-bdb2-baf60b757b30/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9851c260-1672-4c05-bdb2-baf60b757b30/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc5ed5fb850d9a2c9d9a14514ffc7939afe81a277edfb59aefd3c5f66024eda8 [2022-11-20 20:25:38,769 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 20:25:38,789 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 20:25:38,792 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 20:25:38,793 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 20:25:38,794 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 20:25:38,795 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9851c260-1672-4c05-bdb2-baf60b757b30/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i [2022-11-20 20:25:41,810 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 20:25:42,428 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 20:25:42,428 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9851c260-1672-4c05-bdb2-baf60b757b30/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i [2022-11-20 20:25:42,479 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9851c260-1672-4c05-bdb2-baf60b757b30/bin/utaipan-6cKwYrpEi9/data/120dd97f3/e54b58fba90d42c4afe169032419ef15/FLAGa42014278 [2022-11-20 20:25:42,500 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9851c260-1672-4c05-bdb2-baf60b757b30/bin/utaipan-6cKwYrpEi9/data/120dd97f3/e54b58fba90d42c4afe169032419ef15 [2022-11-20 20:25:42,503 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 20:25:42,505 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 20:25:42,508 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 20:25:42,508 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 20:25:42,512 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 20:25:42,514 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:25:42" (1/1) ... [2022-11-20 20:25:42,515 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79654b04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:25:42, skipping insertion in model container [2022-11-20 20:25:42,515 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:25:42" (1/1) ... [2022-11-20 20:25:42,523 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 20:25:42,639 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:25:43,019 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_9851c260-1672-4c05-bdb2-baf60b757b30/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i[4499,4512] [2022-11-20 20:25:43,028 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_9851c260-1672-4c05-bdb2-baf60b757b30/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i[4559,4572] [2022-11-20 20:25:44,068 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 20:25:44,068 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 20:25:44,069 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 20:25:44,070 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 20:25:44,071 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 20:25:44,086 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 20:25:44,086 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 20:25:44,094 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 20:25:44,094 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 20:25:44,531 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-20 20:25:44,532 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-20 20:25:44,534 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-20 20:25:44,535 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-20 20:25:44,536 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-20 20:25:44,537 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-20 20:25:44,538 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-20 20:25:44,538 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-20 20:25:44,539 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-20 20:25:44,540 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-20 20:25:44,721 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-20 20:25:44,809 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 20:25:44,810 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 20:25:44,938 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:25:45,013 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 20:25:45,040 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_9851c260-1672-4c05-bdb2-baf60b757b30/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i[4499,4512] [2022-11-20 20:25:45,041 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_9851c260-1672-4c05-bdb2-baf60b757b30/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i[4559,4572] [2022-11-20 20:25:45,099 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 20:25:45,099 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 20:25:45,100 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 20:25:45,101 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 20:25:45,101 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 20:25:45,117 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 20:25:45,118 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 20:25:45,188 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 20:25:45,188 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 20:25:45,250 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-20 20:25:45,251 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-20 20:25:45,252 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-20 20:25:45,253 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-20 20:25:45,254 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-20 20:25:45,255 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-20 20:25:45,256 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-20 20:25:45,256 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-20 20:25:45,257 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-20 20:25:45,257 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-20 20:25:45,281 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-20 20:25:45,355 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 20:25:45,355 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 20:25:45,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:25:45,715 INFO L208 MainTranslator]: Completed translation [2022-11-20 20:25:45,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:25:45 WrapperNode [2022-11-20 20:25:45,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 20:25:45,717 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 20:25:45,718 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 20:25:45,718 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 20:25:45,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:25:45" (1/1) ... [2022-11-20 20:25:45,831 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:25:45" (1/1) ... [2022-11-20 20:25:45,892 INFO L138 Inliner]: procedures = 693, calls = 2771, calls flagged for inlining = 60, calls inlined = 8, statements flattened = 807 [2022-11-20 20:25:45,893 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 20:25:45,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 20:25:45,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 20:25:45,894 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 20:25:45,904 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:25:45" (1/1) ... [2022-11-20 20:25:45,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:25:45" (1/1) ... [2022-11-20 20:25:45,916 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:25:45" (1/1) ... [2022-11-20 20:25:45,916 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:25:45" (1/1) ... [2022-11-20 20:25:45,944 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:25:45" (1/1) ... [2022-11-20 20:25:45,991 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:25:45" (1/1) ... [2022-11-20 20:25:45,999 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:25:45" (1/1) ... [2022-11-20 20:25:46,002 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:25:45" (1/1) ... [2022-11-20 20:25:46,027 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 20:25:46,027 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 20:25:46,028 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 20:25:46,028 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 20:25:46,028 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:25:45" (1/1) ... [2022-11-20 20:25:46,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:25:46,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9851c260-1672-4c05-bdb2-baf60b757b30/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:25:46,082 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9851c260-1672-4c05-bdb2-baf60b757b30/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 20:25:46,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9851c260-1672-4c05-bdb2-baf60b757b30/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 20:25:46,125 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2022-11-20 20:25:46,126 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2022-11-20 20:25:46,126 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2022-11-20 20:25:46,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2022-11-20 20:25:46,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 20:25:46,131 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-20 20:25:46,132 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-20 20:25:46,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 20:25:46,132 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-20 20:25:46,132 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-20 20:25:46,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 20:25:46,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 20:25:46,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 20:25:46,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 20:25:46,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 20:25:46,134 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-20 20:25:46,135 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-20 20:25:46,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 20:25:46,135 INFO L130 BoogieDeclarations]: Found specification of procedure aws_secure_zero [2022-11-20 20:25:46,136 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_secure_zero [2022-11-20 20:25:46,136 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2022-11-20 20:25:46,136 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2022-11-20 20:25:46,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 20:25:46,136 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 20:25:46,136 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2022-11-20 20:25:46,137 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2022-11-20 20:25:46,137 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 20:25:46,137 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 20:25:46,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 20:25:46,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 20:25:46,138 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-20 20:25:46,138 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-20 20:25:46,138 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-20 20:25:46,138 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-20 20:25:46,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 20:25:46,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 20:25:46,472 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 20:25:46,475 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 20:25:47,824 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 20:25:48,009 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 20:25:48,009 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 20:25:48,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:25:48 BoogieIcfgContainer [2022-11-20 20:25:48,012 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 20:25:48,015 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 20:25:48,015 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 20:25:48,018 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 20:25:48,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:25:42" (1/3) ... [2022-11-20 20:25:48,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ed96634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:25:48, skipping insertion in model container [2022-11-20 20:25:48,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:25:45" (2/3) ... [2022-11-20 20:25:48,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ed96634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:25:48, skipping insertion in model container [2022-11-20 20:25:48,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:25:48" (3/3) ... [2022-11-20 20:25:48,029 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_string_destroy_secure_harness.i [2022-11-20 20:25:48,048 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 20:25:48,049 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 20:25:48,114 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 20:25:48,120 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;@580d0a40, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 20:25:48,121 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 20:25:48,126 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 45 states have (on average 1.2) internal successors, (54), 46 states have internal predecessors, (54), 20 states have call successors, (20), 12 states have call predecessors, (20), 12 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-20 20:25:48,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-20 20:25:48,137 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:25:48,137 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:25:48,138 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:25:48,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:25:48,147 INFO L85 PathProgramCache]: Analyzing trace with hash -230741819, now seen corresponding path program 1 times [2022-11-20 20:25:48,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:25:48,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705134899] [2022-11-20 20:25:48,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:25:48,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:25:48,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:25:49,987 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 20:25:49,987 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:25:49,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705134899] [2022-11-20 20:25:49,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705134899] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:25:49,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:25:49,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 20:25:49,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42384988] [2022-11-20 20:25:49,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:25:50,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 20:25:50,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:25:50,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 20:25:50,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-20 20:25:50,037 INFO L87 Difference]: Start difference. First operand has 79 states, 45 states have (on average 1.2) internal successors, (54), 46 states have internal predecessors, (54), 20 states have call successors, (20), 12 states have call predecessors, (20), 12 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 9 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 4 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) [2022-11-20 20:25:50,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:25:50,446 INFO L93 Difference]: Finished difference Result 103 states and 120 transitions. [2022-11-20 20:25:50,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 20:25:50,449 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 4 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) Word has length 47 [2022-11-20 20:25:50,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:25:50,460 INFO L225 Difference]: With dead ends: 103 [2022-11-20 20:25:50,460 INFO L226 Difference]: Without dead ends: 73 [2022-11-20 20:25:50,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-11-20 20:25:50,475 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 24 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 20:25:50,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 500 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 20:25:50,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-11-20 20:25:50,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2022-11-20 20:25:50,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 41 states have (on average 1.0975609756097562) internal successors, (45), 41 states have internal predecessors, (45), 20 states have call successors, (20), 12 states have call predecessors, (20), 11 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-20 20:25:50,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 84 transitions. [2022-11-20 20:25:50,560 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 84 transitions. Word has length 47 [2022-11-20 20:25:50,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:25:50,562 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 84 transitions. [2022-11-20 20:25:50,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 4 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) [2022-11-20 20:25:50,563 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 84 transitions. [2022-11-20 20:25:50,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-20 20:25:50,569 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:25:50,569 INFO L195 NwaCegarLoop]: trace histogram [5, 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] [2022-11-20 20:25:50,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 20:25:50,570 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:25:50,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:25:50,571 INFO L85 PathProgramCache]: Analyzing trace with hash -84561895, now seen corresponding path program 1 times [2022-11-20 20:25:50,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:25:50,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418072616] [2022-11-20 20:25:50,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:25:50,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:25:50,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:25:51,109 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-20 20:25:51,109 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:25:51,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418072616] [2022-11-20 20:25:51,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418072616] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:25:51,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:25:51,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 20:25:51,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418771045] [2022-11-20 20:25:51,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:25:51,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:25:51,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:25:51,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:25:51,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:25:51,114 INFO L87 Difference]: Start difference. First operand 73 states and 84 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-20 20:25:51,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:25:51,289 INFO L93 Difference]: Finished difference Result 119 states and 135 transitions. [2022-11-20 20:25:51,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:25:51,290 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 68 [2022-11-20 20:25:51,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:25:51,291 INFO L225 Difference]: With dead ends: 119 [2022-11-20 20:25:51,292 INFO L226 Difference]: Without dead ends: 73 [2022-11-20 20:25:51,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:25:51,294 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 3 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 20:25:51,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 189 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 20:25:51,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-11-20 20:25:51,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2022-11-20 20:25:51,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 41 states have (on average 1.0731707317073171) internal successors, (44), 41 states have internal predecessors, (44), 20 states have call successors, (20), 12 states have call predecessors, (20), 11 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-20 20:25:51,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 83 transitions. [2022-11-20 20:25:51,310 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 83 transitions. Word has length 68 [2022-11-20 20:25:51,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:25:51,311 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 83 transitions. [2022-11-20 20:25:51,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-20 20:25:51,311 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 83 transitions. [2022-11-20 20:25:51,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-20 20:25:51,314 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:25:51,314 INFO L195 NwaCegarLoop]: trace histogram [5, 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, 1, 1] [2022-11-20 20:25:51,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 20:25:51,315 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:25:51,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:25:51,326 INFO L85 PathProgramCache]: Analyzing trace with hash 795240198, now seen corresponding path program 1 times [2022-11-20 20:25:51,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:25:51,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721369924] [2022-11-20 20:25:51,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:25:51,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:25:51,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:25:53,837 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-20 20:25:53,837 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:25:53,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721369924] [2022-11-20 20:25:53,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721369924] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 20:25:53,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044078086] [2022-11-20 20:25:53,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:25:53,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:25:53,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9851c260-1672-4c05-bdb2-baf60b757b30/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:25:53,843 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9851c260-1672-4c05-bdb2-baf60b757b30/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:25:53,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9851c260-1672-4c05-bdb2-baf60b757b30/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 20:25:54,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:25:54,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 2645 conjuncts, 69 conjunts are in the unsatisfiable core [2022-11-20 20:25:54,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:25:55,165 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 20:25:55,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 35 [2022-11-20 20:25:55,515 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 20:25:55,516 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:25:55,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2044078086] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:25:55,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 20:25:55,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [10] total 24 [2022-11-20 20:25:55,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222518253] [2022-11-20 20:25:55,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:25:55,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-20 20:25:55,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 20:25:55,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-20 20:25:55,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=504, Unknown=0, NotChecked=0, Total=552 [2022-11-20 20:25:55,520 INFO L87 Difference]: Start difference. First operand 73 states and 83 transitions. Second operand has 16 states, 10 states have (on average 3.7) internal successors, (37), 14 states have internal predecessors, (37), 7 states have call successors, (16), 2 states have call predecessors, (16), 6 states have return successors, (15), 8 states have call predecessors, (15), 7 states have call successors, (15) [2022-11-20 20:25:56,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:25:56,082 INFO L93 Difference]: Finished difference Result 97 states and 109 transitions. [2022-11-20 20:25:56,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-20 20:25:56,085 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 10 states have (on average 3.7) internal successors, (37), 14 states have internal predecessors, (37), 7 states have call successors, (16), 2 states have call predecessors, (16), 6 states have return successors, (15), 8 states have call predecessors, (15), 7 states have call successors, (15) Word has length 72 [2022-11-20 20:25:56,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:25:56,087 INFO L225 Difference]: With dead ends: 97 [2022-11-20 20:25:56,087 INFO L226 Difference]: Without dead ends: 74 [2022-11-20 20:25:56,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=68, Invalid=744, Unknown=0, NotChecked=0, Total=812 [2022-11-20 20:25:56,088 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 10 mSDsluCounter, 775 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 67 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 20:25:56,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 838 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 292 Invalid, 0 Unknown, 67 Unchecked, 0.4s Time] [2022-11-20 20:25:56,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-11-20 20:25:56,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-11-20 20:25:56,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 42 states have (on average 1.0714285714285714) internal successors, (45), 42 states have internal predecessors, (45), 20 states have call successors, (20), 12 states have call predecessors, (20), 11 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-20 20:25:56,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 84 transitions. [2022-11-20 20:25:56,113 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 84 transitions. Word has length 72 [2022-11-20 20:25:56,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:25:56,115 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 84 transitions. [2022-11-20 20:25:56,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 10 states have (on average 3.7) internal successors, (37), 14 states have internal predecessors, (37), 7 states have call successors, (16), 2 states have call predecessors, (16), 6 states have return successors, (15), 8 states have call predecessors, (15), 7 states have call successors, (15) [2022-11-20 20:25:56,118 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 84 transitions. [2022-11-20 20:25:56,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-20 20:25:56,120 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:25:56,120 INFO L195 NwaCegarLoop]: trace histogram [5, 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, 1, 1, 1] [2022-11-20 20:25:56,147 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9851c260-1672-4c05-bdb2-baf60b757b30/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-20 20:25:56,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9851c260-1672-4c05-bdb2-baf60b757b30/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:25:56,321 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:25:56,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:25:56,322 INFO L85 PathProgramCache]: Analyzing trace with hash -765914800, now seen corresponding path program 1 times [2022-11-20 20:25:56,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 20:25:56,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311482553] [2022-11-20 20:25:56,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:25:56,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 20:25:56,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:25:58,604 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-20 20:25:58,604 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 20:25:58,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311482553] [2022-11-20 20:25:58,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311482553] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 20:25:58,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1064541486] [2022-11-20 20:25:58,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:25:58,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:25:58,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9851c260-1672-4c05-bdb2-baf60b757b30/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:25:58,607 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9851c260-1672-4c05-bdb2-baf60b757b30/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:25:58,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9851c260-1672-4c05-bdb2-baf60b757b30/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 20:25:59,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:25:59,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 2664 conjuncts, 194 conjunts are in the unsatisfiable core [2022-11-20 20:25:59,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:26:00,013 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 65 treesize of output 60 [2022-11-20 20:26:00,048 INFO L321 Elim1Store]: treesize reduction 15, result has 53.1 percent of original size [2022-11-20 20:26:00,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 124 [2022-11-20 20:26:00,158 INFO L321 Elim1Store]: treesize reduction 104, result has 1.0 percent of original size [2022-11-20 20:26:00,159 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 174 treesize of output 91 [2022-11-20 20:26:05,123 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 20:26:05,127 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-20 20:26:05,130 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 26 [2022-11-20 20:26:05,338 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 14 treesize of output 10 [2022-11-20 20:26:06,603 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 20:26:06,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-20 20:26:06,797 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-20 20:26:06,797 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:26:08,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1064541486] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 20:26:08,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [844805080] [2022-11-20 20:26:08,170 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-11-20 20:26:08,170 INFO L166 IcfgInterpreter]: Building call graph [2022-11-20 20:26:08,174 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-20 20:26:08,179 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-20 20:26:08,180 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-20 20:26:12,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:12,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:12,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:12,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:12,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:12,270 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 1746 treesize of output 1374 [2022-11-20 20:26:13,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:13,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:13,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:13,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:13,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:13,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 1746 treesize of output 1374 [2022-11-20 20:26:15,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:15,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:16,275 INFO L217 Elim1Store]: Index analysis took 766 ms [2022-11-20 20:26:16,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 309 select indices, 309 select index equivalence classes, 33694 disjoint index pairs (out of 47586 index pairs), introduced 309 new quantified variables, introduced 0 case distinctions, treesize of input 2781 treesize of output 3693 [2022-11-20 20:26:19,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 1 [2022-11-20 20:26:24,338 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 [2022-11-20 20:26:24,345 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 [2022-11-20 20:26:24,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:24,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:24,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:24,466 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 [2022-11-20 20:26:24,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:24,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:24,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:24,509 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 [2022-11-20 20:26:24,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:24,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:24,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:24,554 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 [2022-11-20 20:26:24,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:24,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:24,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:24,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 20:26:24,594 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 [2022-11-20 20:26:27,332 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-20 20:26:34,814 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-20 20:26:39,202 INFO L197 IcfgInterpreter]: Interpreting procedure ensure_string_is_allocated_bounded_length with input of size 3307 for LOIs [2022-11-20 20:28:19,530 INFO L197 IcfgInterpreter]: Interpreting procedure nondet_uint64_t with input of size 3292 for LOIs [2022-11-20 20:28:23,350 INFO L197 IcfgInterpreter]: Interpreting procedure bounded_malloc with input of size 3316 for LOIs [2022-11-20 20:29:07,627 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3384 for LOIs [2022-11-20 20:29:42,018 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-20 20:30:56,893 WARN L233 SmtUtils]: Spent 1.19m on a formula simplification that was a NOOP. DAG size: 3292 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:32:14,251 WARN L233 SmtUtils]: Spent 1.22m on a formula simplification that was a NOOP. DAG size: 3307 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 20:33:39,880 WARN L233 SmtUtils]: Spent 1.36m on a formula simplification that was a NOOP. DAG size: 3309 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)