./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d012bd2d-f0f4-40fb-845b-24854679b1b3/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d012bd2d-f0f4-40fb-845b-24854679b1b3/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d012bd2d-f0f4-40fb-845b-24854679b1b3/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d012bd2d-f0f4-40fb-845b-24854679b1b3/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d012bd2d-f0f4-40fb-845b-24854679b1b3/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d012bd2d-f0f4-40fb-845b-24854679b1b3/bin/utaipan-eEHZpOm5b7 --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 d58b6cbe3dbcae2c6bf4b35286cc82fa39ed49d435b7e41930b97647d699f843 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 17:56:57,045 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 17:56:57,048 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 17:56:57,112 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 17:56:57,113 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 17:56:57,117 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 17:56:57,119 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 17:56:57,123 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 17:56:57,125 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 17:56:57,131 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 17:56:57,132 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 17:56:57,134 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 17:56:57,135 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 17:56:57,137 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 17:56:57,139 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 17:56:57,143 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 17:56:57,145 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 17:56:57,146 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 17:56:57,152 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 17:56:57,160 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 17:56:57,162 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 17:56:57,163 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 17:56:57,166 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 17:56:57,167 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 17:56:57,176 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 17:56:57,177 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 17:56:57,177 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 17:56:57,179 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 17:56:57,180 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 17:56:57,181 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 17:56:57,182 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 17:56:57,183 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 17:56:57,184 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 17:56:57,185 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 17:56:57,187 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 17:56:57,187 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 17:56:57,188 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 17:56:57,188 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 17:56:57,188 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 17:56:57,189 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 17:56:57,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 17:56:57,191 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d012bd2d-f0f4-40fb-845b-24854679b1b3/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 17:56:57,233 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 17:56:57,234 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 17:56:57,234 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 17:56:57,235 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 17:56:57,242 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 17:56:57,242 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 17:56:57,242 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 17:56:57,243 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 17:56:57,244 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 17:56:57,244 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 17:56:57,244 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 17:56:57,244 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 17:56:57,245 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 17:56:57,245 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 17:56:57,245 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 17:56:57,245 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 17:56:57,246 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 17:56:57,246 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 17:56:57,247 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 17:56:57,247 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 17:56:57,247 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 17:56:57,247 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 17:56:57,248 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 17:56:57,248 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 17:56:57,248 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 17:56:57,248 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 17:56:57,248 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 17:56:57,249 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 17:56:57,249 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 17:56:57,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 17:56:57,249 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 17:56:57,250 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 17:56:57,257 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 17:56:57,258 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 17:56:57,258 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 17:56:57,258 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 17:56:57,258 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 17:56:57,258 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 17:56:57,259 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d012bd2d-f0f4-40fb-845b-24854679b1b3/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d012bd2d-f0f4-40fb-845b-24854679b1b3/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d58b6cbe3dbcae2c6bf4b35286cc82fa39ed49d435b7e41930b97647d699f843 [2021-11-25 17:56:57,508 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 17:56:57,529 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 17:56:57,532 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 17:56:57,533 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 17:56:57,534 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 17:56:57,535 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d012bd2d-f0f4-40fb-845b-24854679b1b3/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i [2021-11-25 17:56:57,615 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d012bd2d-f0f4-40fb-845b-24854679b1b3/bin/utaipan-eEHZpOm5b7/data/3b0f5dc7c/5e2332ca27594b1eb441090a56119999/FLAGf484d2566 [2021-11-25 17:56:58,470 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 17:56:58,470 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d012bd2d-f0f4-40fb-845b-24854679b1b3/sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i [2021-11-25 17:56:58,503 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d012bd2d-f0f4-40fb-845b-24854679b1b3/bin/utaipan-eEHZpOm5b7/data/3b0f5dc7c/5e2332ca27594b1eb441090a56119999/FLAGf484d2566 [2021-11-25 17:56:58,950 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d012bd2d-f0f4-40fb-845b-24854679b1b3/bin/utaipan-eEHZpOm5b7/data/3b0f5dc7c/5e2332ca27594b1eb441090a56119999 [2021-11-25 17:56:58,954 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 17:56:58,956 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 17:56:58,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 17:56:58,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 17:56:58,973 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 17:56:58,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:56:58" (1/1) ... [2021-11-25 17:56:58,975 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c2d3ac3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:56:58, skipping insertion in model container [2021-11-25 17:56:58,976 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:56:58" (1/1) ... [2021-11-25 17:56:58,983 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 17:56:59,142 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 17:56:59,369 WARN L230 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_d012bd2d-f0f4-40fb-845b-24854679b1b3/sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i[4497,4510] [2021-11-25 17:56:59,376 WARN L230 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_d012bd2d-f0f4-40fb-845b-24854679b1b3/sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i[4557,4570] [2021-11-25 17:57:00,194 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-25 17:57:00,322 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:57:00,323 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:57:00,324 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:57:00,325 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:57:00,326 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:57:00,338 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:57:00,338 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:57:00,340 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:57:00,341 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:57:00,342 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:57:00,343 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:57:00,344 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:57:00,344 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:57:00,703 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-25 17:57:00,705 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-25 17:57:00,706 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-25 17:57:00,708 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-25 17:57:00,710 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-25 17:57:00,711 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-25 17:57:00,711 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-25 17:57:00,712 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-25 17:57:00,713 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-25 17:57:00,714 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-25 17:57:00,846 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:57:00,854 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:57:00,938 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 17:57:00,966 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 17:57:00,980 WARN L230 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_d012bd2d-f0f4-40fb-845b-24854679b1b3/sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i[4497,4510] [2021-11-25 17:57:00,980 WARN L230 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_d012bd2d-f0f4-40fb-845b-24854679b1b3/sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i[4557,4570] [2021-11-25 17:57:01,014 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-25 17:57:01,031 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:57:01,032 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:57:01,036 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:57:01,037 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:57:01,037 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:57:01,045 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:57:01,056 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:57:01,057 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:57:01,058 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:57:01,059 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:57:01,061 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:57:01,063 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:57:01,064 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:57:01,158 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-25 17:57:01,159 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-25 17:57:01,162 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-25 17:57:01,163 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-25 17:57:01,164 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-25 17:57:01,165 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-25 17:57:01,165 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-25 17:57:01,166 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-25 17:57:01,167 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-25 17:57:01,167 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-25 17:57:01,230 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:57:01,238 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:57:01,272 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 17:57:01,607 INFO L208 MainTranslator]: Completed translation [2021-11-25 17:57:01,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:57:01 WrapperNode [2021-11-25 17:57:01,607 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 17:57:01,608 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 17:57:01,609 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 17:57:01,609 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 17:57:01,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:57:01" (1/1) ... [2021-11-25 17:57:01,763 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:57:01" (1/1) ... [2021-11-25 17:57:01,878 INFO L137 Inliner]: procedures = 690, calls = 1687, calls flagged for inlining = 53, calls inlined = 9, statements flattened = 616 [2021-11-25 17:57:01,881 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 17:57:01,882 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 17:57:01,882 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 17:57:01,882 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 17:57:01,891 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:57:01" (1/1) ... [2021-11-25 17:57:01,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:57:01" (1/1) ... [2021-11-25 17:57:01,903 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:57:01" (1/1) ... [2021-11-25 17:57:01,905 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:57:01" (1/1) ... [2021-11-25 17:57:01,963 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:57:01" (1/1) ... [2021-11-25 17:57:01,966 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:57:01" (1/1) ... [2021-11-25 17:57:01,986 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:57:01" (1/1) ... [2021-11-25 17:57:01,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 17:57:02,012 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 17:57:02,012 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 17:57:02,012 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 17:57:02,013 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:57:01" (1/1) ... [2021-11-25 17:57:02,021 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 17:57:02,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d012bd2d-f0f4-40fb-845b-24854679b1b3/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:57:02,049 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d012bd2d-f0f4-40fb-845b-24854679b1b3/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 17:57:02,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d012bd2d-f0f4-40fb-845b-24854679b1b3/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 17:57:02,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 17:57:02,112 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2021-11-25 17:57:02,112 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2021-11-25 17:57:02,113 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2021-11-25 17:57:02,113 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2021-11-25 17:57:02,113 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-25 17:57:02,113 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-25 17:57:02,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 17:57:02,114 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-11-25 17:57:02,114 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-11-25 17:57:02,114 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-25 17:57:02,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-25 17:57:02,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 17:57:02,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 17:57:02,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 17:57:02,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 17:57:02,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 17:57:02,116 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-25 17:57:02,116 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-25 17:57:02,116 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-11-25 17:57:02,116 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-11-25 17:57:02,116 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-11-25 17:57:02,116 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-11-25 17:57:02,117 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-25 17:57:02,117 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-25 17:57:02,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 17:57:02,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 17:57:02,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 17:57:02,117 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-25 17:57:02,118 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-25 17:57:02,118 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-11-25 17:57:02,118 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-11-25 17:57:02,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 17:57:02,118 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2021-11-25 17:57:02,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2021-11-25 17:57:02,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 17:57:02,407 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 17:57:02,409 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 17:57:03,376 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 17:57:03,508 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 17:57:03,508 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-25 17:57:03,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:57:03 BoogieIcfgContainer [2021-11-25 17:57:03,511 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 17:57:03,513 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 17:57:03,513 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 17:57:03,516 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 17:57:03,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:56:58" (1/3) ... [2021-11-25 17:57:03,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53045c66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:57:03, skipping insertion in model container [2021-11-25 17:57:03,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:57:01" (2/3) ... [2021-11-25 17:57:03,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53045c66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:57:03, skipping insertion in model container [2021-11-25 17:57:03,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:57:03" (3/3) ... [2021-11-25 17:57:03,519 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_capacity_harness.i [2021-11-25 17:57:03,528 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 17:57:03,528 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 17:57:03,593 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 17:57:03,609 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 17:57:03,609 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 17:57:03,635 INFO L276 IsEmpty]: Start isEmpty. Operand has 99 states, 54 states have (on average 1.1851851851851851) internal successors, (64), 55 states have internal predecessors, (64), 31 states have call successors, (31), 12 states have call predecessors, (31), 12 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2021-11-25 17:57:03,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-25 17:57:03,648 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:57:03,649 INFO L514 BasicCegarLoop]: trace histogram [6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:57:03,650 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:57:03,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:57:03,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1826594986, now seen corresponding path program 1 times [2021-11-25 17:57:03,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:57:03,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496551258] [2021-11-25 17:57:03,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:57:03,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:57:04,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:57:04,391 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-25 17:57:04,392 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:57:04,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496551258] [2021-11-25 17:57:04,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496551258] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 17:57:04,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [287884463] [2021-11-25 17:57:04,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:57:04,395 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:57:04,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d012bd2d-f0f4-40fb-845b-24854679b1b3/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:57:04,400 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d012bd2d-f0f4-40fb-845b-24854679b1b3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:57:04,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d012bd2d-f0f4-40fb-845b-24854679b1b3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 17:57:04,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:57:04,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 2045 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 17:57:04,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:57:05,274 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-25 17:57:05,274 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:57:05,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [287884463] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:57:05,275 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 17:57:05,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2021-11-25 17:57:05,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878720816] [2021-11-25 17:57:05,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:57:05,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 17:57:05,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:57:05,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 17:57:05,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-25 17:57:05,373 INFO L87 Difference]: Start difference. First operand has 99 states, 54 states have (on average 1.1851851851851851) internal successors, (64), 55 states have internal predecessors, (64), 31 states have call successors, (31), 12 states have call predecessors, (31), 12 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-25 17:57:06,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:57:06,043 INFO L93 Difference]: Finished difference Result 169 states and 229 transitions. [2021-11-25 17:57:06,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 17:57:06,045 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 58 [2021-11-25 17:57:06,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:57:06,055 INFO L225 Difference]: With dead ends: 169 [2021-11-25 17:57:06,056 INFO L226 Difference]: Without dead ends: 99 [2021-11-25 17:57:06,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-25 17:57:06,063 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 26 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-25 17:57:06,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 355 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-25 17:57:06,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-11-25 17:57:06,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2021-11-25 17:57:06,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 54 states have (on average 1.1666666666666667) internal successors, (63), 56 states have internal predecessors, (63), 31 states have call successors, (31), 12 states have call predecessors, (31), 13 states have return successors, (32), 30 states have call predecessors, (32), 30 states have call successors, (32) [2021-11-25 17:57:06,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 126 transitions. [2021-11-25 17:57:06,125 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 126 transitions. Word has length 58 [2021-11-25 17:57:06,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:57:06,126 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 126 transitions. [2021-11-25 17:57:06,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-25 17:57:06,127 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 126 transitions. [2021-11-25 17:57:06,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-25 17:57:06,131 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:57:06,131 INFO L514 BasicCegarLoop]: trace histogram [6, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:57:06,171 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d012bd2d-f0f4-40fb-845b-24854679b1b3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-25 17:57:06,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d012bd2d-f0f4-40fb-845b-24854679b1b3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-25 17:57:06,351 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:57:06,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:57:06,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1965393254, now seen corresponding path program 1 times [2021-11-25 17:57:06,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:57:06,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947407412] [2021-11-25 17:57:06,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:57:06,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:57:06,450 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 17:57:06,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [886596241] [2021-11-25 17:57:06,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:57:06,450 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:57:06,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d012bd2d-f0f4-40fb-845b-24854679b1b3/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:57:06,451 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d012bd2d-f0f4-40fb-845b-24854679b1b3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:57:06,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d012bd2d-f0f4-40fb-845b-24854679b1b3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 17:57:06,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:57:06,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 2177 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 17:57:06,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:57:07,104 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-25 17:57:07,104 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:57:07,105 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:57:07,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947407412] [2021-11-25 17:57:07,105 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 17:57:07,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886596241] [2021-11-25 17:57:07,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886596241] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:57:07,106 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:57:07,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 17:57:07,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444209666] [2021-11-25 17:57:07,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:57:07,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 17:57:07,109 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:57:07,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 17:57:07,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 17:57:07,110 INFO L87 Difference]: Start difference. First operand 99 states and 126 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 4 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-11-25 17:57:08,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:57:08,074 INFO L93 Difference]: Finished difference Result 156 states and 196 transitions. [2021-11-25 17:57:08,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 17:57:08,075 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 4 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 67 [2021-11-25 17:57:08,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:57:08,081 INFO L225 Difference]: With dead ends: 156 [2021-11-25 17:57:08,081 INFO L226 Difference]: Without dead ends: 97 [2021-11-25 17:57:08,084 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-25 17:57:08,088 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 37 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-25 17:57:08,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 426 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-25 17:57:08,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-11-25 17:57:08,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2021-11-25 17:57:08,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 53 states have (on average 1.150943396226415) internal successors, (61), 54 states have internal predecessors, (61), 31 states have call successors, (31), 12 states have call predecessors, (31), 12 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2021-11-25 17:57:08,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 122 transitions. [2021-11-25 17:57:08,117 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 122 transitions. Word has length 67 [2021-11-25 17:57:08,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:57:08,119 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 122 transitions. [2021-11-25 17:57:08,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 4 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2021-11-25 17:57:08,119 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 122 transitions. [2021-11-25 17:57:08,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-25 17:57:08,130 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:57:08,130 INFO L514 BasicCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:57:08,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d012bd2d-f0f4-40fb-845b-24854679b1b3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 17:57:08,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d012bd2d-f0f4-40fb-845b-24854679b1b3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:57:08,344 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:57:08,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:57:08,345 INFO L85 PathProgramCache]: Analyzing trace with hash 97009324, now seen corresponding path program 1 times [2021-11-25 17:57:08,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:57:08,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163455709] [2021-11-25 17:57:08,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:57:08,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:57:08,444 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 17:57:08,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1417738483] [2021-11-25 17:57:08,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:57:08,445 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:57:08,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d012bd2d-f0f4-40fb-845b-24854679b1b3/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:57:08,446 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d012bd2d-f0f4-40fb-845b-24854679b1b3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:57:08,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d012bd2d-f0f4-40fb-845b-24854679b1b3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 17:57:11,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:57:11,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 2441 conjuncts, 302 conjunts are in the unsatisfiable core [2021-11-25 17:57:11,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:57:11,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 17:57:12,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:57:12,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:57:12,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:57:12,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 36 [2021-11-25 17:57:16,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:57:16,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2021-11-25 17:57:16,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:57:16,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2021-11-25 17:57:20,150 INFO L354 Elim1Store]: treesize reduction 53, result has 32.9 percent of original size [2021-11-25 17:57:20,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 53 [2021-11-25 17:57:20,170 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-11-25 17:57:20,183 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 29 [2021-11-25 17:57:20,207 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-11-25 17:57:23,185 INFO L354 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2021-11-25 17:57:23,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 37 [2021-11-25 17:57:40,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:57:40,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:57:40,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:57:40,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:57:40,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:57:40,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 65 [2021-11-25 17:57:40,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:57:40,520 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-11-25 17:57:40,581 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-11-25 17:57:40,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 16 treesize of output 18 [2021-11-25 17:57:40,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 17:59:37,240 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 415 treesize of output 403 [2021-11-25 17:59:37,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 383 treesize of output 371 [2021-11-25 17:59:37,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 175 treesize of output 93 [2021-11-25 17:59:37,597 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 17 proven. 40 refuted. 3 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 17:59:37,597 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 17:59:53,782 WARN L227 SmtUtils]: Spent 15.72s on a formula simplification that was a NOOP. DAG size: 227 (called from [L 234] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2021-11-25 18:00:05,470 WARN L227 SmtUtils]: Spent 11.68s on a formula simplification that was a NOOP. DAG size: 173 (called from [L 271] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2021-11-25 18:00:55,155 WARN L227 SmtUtils]: Spent 49.66s on a formula simplification. DAG size of input: 396 DAG size of output: 193 (called from [L 234] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2021-11-25 18:01:15,902 WARN L227 SmtUtils]: Spent 20.74s on a formula simplification that was a NOOP. DAG size: 187 (called from [L 271] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)