./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=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d58b6cbe3dbcae2c6bf4b35286cc82fa39ed49d435b7e41930b97647d699f843 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 16:58:47,240 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 16:58:47,264 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 16:58:47,294 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 16:58:47,294 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 16:58:47,296 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 16:58:47,297 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 16:58:47,298 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 16:58:47,299 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 16:58:47,300 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 16:58:47,301 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 16:58:47,302 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 16:58:47,302 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 16:58:47,303 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 16:58:47,304 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 16:58:47,305 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 16:58:47,306 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 16:58:47,306 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 16:58:47,308 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 16:58:47,310 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 16:58:47,311 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 16:58:47,312 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 16:58:47,313 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 16:58:47,314 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 16:58:47,316 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 16:58:47,317 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 16:58:47,317 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 16:58:47,318 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 16:58:47,318 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 16:58:47,319 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 16:58:47,320 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 16:58:47,320 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 16:58:47,321 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 16:58:47,322 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 16:58:47,323 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 16:58:47,323 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 16:58:47,323 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 16:58:47,324 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 16:58:47,324 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 16:58:47,325 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 16:58:47,325 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 16:58:47,329 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 16:58:47,355 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 16:58:47,355 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 16:58:47,356 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 16:58:47,356 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 16:58:47,357 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 16:58:47,357 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 16:58:47,358 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 16:58:47,358 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 16:58:47,358 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 16:58:47,358 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 16:58:47,359 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 16:58:47,360 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 16:58:47,360 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 16:58:47,360 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 16:58:47,360 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 16:58:47,360 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 16:58:47,361 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 16:58:47,361 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 16:58:47,361 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 16:58:47,361 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 16:58:47,361 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 16:58:47,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 16:58:47,362 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 16:58:47,362 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 16:58:47,362 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 16:58:47,363 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 16:58:47,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 16:58:47,364 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 16:58:47,364 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 16:58:47,365 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 16:58:47,365 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 16:58:47,365 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d58b6cbe3dbcae2c6bf4b35286cc82fa39ed49d435b7e41930b97647d699f843 [2021-12-14 16:58:47,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 16:58:47,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 16:58:47,602 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 16:58:47,603 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 16:58:47,604 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 16:58:47,605 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i [2021-12-14 16:58:47,660 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bca9aadf8/eb7dcba51b32495983b754a018d74847/FLAG95cb763bf [2021-12-14 16:58:48,304 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 16:58:48,305 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i [2021-12-14 16:58:48,338 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bca9aadf8/eb7dcba51b32495983b754a018d74847/FLAG95cb763bf [2021-12-14 16:58:48,446 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bca9aadf8/eb7dcba51b32495983b754a018d74847 [2021-12-14 16:58:48,448 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 16:58:48,449 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 16:58:48,453 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 16:58:48,453 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 16:58:48,456 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 16:58:48,457 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:58:48" (1/1) ... [2021-12-14 16:58:48,459 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ab68ac1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:48, skipping insertion in model container [2021-12-14 16:58:48,459 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:58:48" (1/1) ... [2021-12-14 16:58:48,465 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 16:58:48,555 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 16:58:48,792 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i[4497,4510] [2021-12-14 16:58:48,798 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i[4557,4570] [2021-12-14 16:58:49,396 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-14 16:58:49,469 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 16:58:49,470 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 16:58:49,470 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 16:58:49,473 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 16:58:49,474 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 16:58:49,489 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 16:58:49,490 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 16:58:49,492 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 16:58:49,493 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 16:58:49,494 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 16:58:49,495 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 16:58:49,495 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 16:58:49,496 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 16:58:49,701 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-14 16:58:49,702 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-14 16:58:49,702 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-14 16:58:49,703 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-14 16:58:49,704 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-14 16:58:49,704 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-14 16:58:49,705 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-14 16:58:49,705 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-14 16:58:49,706 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-14 16:58:49,706 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-14 16:58:49,825 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 16:58:49,838 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 16:58:49,885 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 16:58:49,906 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 16:58:49,917 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i[4497,4510] [2021-12-14 16:58:49,917 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i[4557,4570] [2021-12-14 16:58:49,941 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-14 16:58:49,963 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 16:58:49,964 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 16:58:49,964 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 16:58:49,964 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 16:58:49,965 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 16:58:49,969 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 16:58:49,970 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 16:58:49,970 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 16:58:49,971 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 16:58:49,971 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 16:58:49,972 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 16:58:49,972 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 16:58:49,972 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 16:58:49,994 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-14 16:58:49,994 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-14 16:58:49,995 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-14 16:58:49,996 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-14 16:58:49,996 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-14 16:58:49,997 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-14 16:58:49,997 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-14 16:58:49,997 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-14 16:58:49,998 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-14 16:58:49,998 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-14 16:58:50,025 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 16:58:50,028 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 16:58:50,054 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 16:58:50,253 INFO L208 MainTranslator]: Completed translation [2021-12-14 16:58:50,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:50 WrapperNode [2021-12-14 16:58:50,254 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 16:58:50,255 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 16:58:50,255 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 16:58:50,255 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 16:58:50,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:50" (1/1) ... [2021-12-14 16:58:50,350 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:50" (1/1) ... [2021-12-14 16:58:50,412 INFO L137 Inliner]: procedures = 690, calls = 1687, calls flagged for inlining = 53, calls inlined = 9, statements flattened = 616 [2021-12-14 16:58:50,413 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 16:58:50,414 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 16:58:50,414 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 16:58:50,414 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 16:58:50,421 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:50" (1/1) ... [2021-12-14 16:58:50,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:50" (1/1) ... [2021-12-14 16:58:50,427 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:50" (1/1) ... [2021-12-14 16:58:50,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:50" (1/1) ... [2021-12-14 16:58:50,450 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:50" (1/1) ... [2021-12-14 16:58:50,453 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:50" (1/1) ... [2021-12-14 16:58:50,458 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:50" (1/1) ... [2021-12-14 16:58:50,468 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 16:58:50,469 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 16:58:50,469 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 16:58:50,469 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 16:58:50,470 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:50" (1/1) ... [2021-12-14 16:58:50,476 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 16:58:50,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 16:58:50,501 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-14 16:58:50,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-14 16:58:50,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 16:58:50,541 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2021-12-14 16:58:50,541 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2021-12-14 16:58:50,542 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2021-12-14 16:58:50,543 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2021-12-14 16:58:50,543 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-12-14 16:58:50,544 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-12-14 16:58:50,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 16:58:50,544 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-12-14 16:58:50,544 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-12-14 16:58:50,545 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-14 16:58:50,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-14 16:58:50,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 16:58:50,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 16:58:50,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 16:58:50,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 16:58:50,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 16:58:50,545 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-12-14 16:58:50,546 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-12-14 16:58:50,546 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-12-14 16:58:50,546 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-12-14 16:58:50,546 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-12-14 16:58:50,546 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-12-14 16:58:50,547 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-14 16:58:50,547 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-14 16:58:50,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 16:58:50,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 16:58:50,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 16:58:50,548 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-12-14 16:58:50,548 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-12-14 16:58:50,548 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-12-14 16:58:50,548 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-12-14 16:58:50,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 16:58:50,549 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2021-12-14 16:58:50,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2021-12-14 16:58:50,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 16:58:50,794 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 16:58:50,796 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 16:58:51,475 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 16:58:51,481 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 16:58:51,481 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 16:58:51,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:58:51 BoogieIcfgContainer [2021-12-14 16:58:51,483 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 16:58:51,484 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 16:58:51,485 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 16:58:51,487 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 16:58:51,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 04:58:48" (1/3) ... [2021-12-14 16:58:51,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ef3be66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:58:51, skipping insertion in model container [2021-12-14 16:58:51,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:50" (2/3) ... [2021-12-14 16:58:51,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ef3be66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:58:51, skipping insertion in model container [2021-12-14 16:58:51,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:58:51" (3/3) ... [2021-12-14 16:58:51,490 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_capacity_harness.i [2021-12-14 16:58:51,494 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 16:58:51,494 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 16:58:51,541 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 16:58:51,552 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-14 16:58:51,553 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 16:58:51,580 INFO L276 IsEmpty]: Start isEmpty. Operand has 122 states, 77 states have (on average 1.1948051948051948) internal successors, (92), 78 states have internal predecessors, (92), 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) [2021-12-14 16:58:51,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-12-14 16:58:51,589 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 16:58:51,590 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 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, 1, 1, 1, 1] [2021-12-14 16:58:51,590 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 16:58:51,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:58:51,595 INFO L85 PathProgramCache]: Analyzing trace with hash -817942521, now seen corresponding path program 1 times [2021-12-14 16:58:51,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:58:51,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873966085] [2021-12-14 16:58:51,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:58:51,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:58:51,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:58:52,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 16:58:52,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:58:52,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 16:58:52,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:58:52,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 16:58:52,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:58:52,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 16:58:52,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:58:52,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-14 16:58:52,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:58:52,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-14 16:58:52,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:58:52,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 16:58:52,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:58:52,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 16:58:52,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:58:52,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-14 16:58:52,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:58:52,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-14 16:58:52,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:58:52,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-14 16:58:52,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:58:52,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-14 16:58:52,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:58:52,282 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-12-14 16:58:52,283 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:58:52,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873966085] [2021-12-14 16:58:52,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873966085] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:58:52,284 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:58:52,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 16:58:52,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633135803] [2021-12-14 16:58:52,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:58:52,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 16:58:52,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:58:52,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 16:58:52,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-14 16:58:52,314 INFO L87 Difference]: Start difference. First operand has 122 states, 77 states have (on average 1.1948051948051948) internal successors, (92), 78 states have internal predecessors, (92), 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 4 states, 4 states have (on average 7.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-14 16:58:52,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 16:58:52,617 INFO L93 Difference]: Finished difference Result 239 states and 325 transitions. [2021-12-14 16:58:52,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-14 16:58:52,619 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 74 [2021-12-14 16:58:52,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 16:58:52,627 INFO L225 Difference]: With dead ends: 239 [2021-12-14 16:58:52,627 INFO L226 Difference]: Without dead ends: 119 [2021-12-14 16:58:52,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-14 16:58:52,633 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 33 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-14 16:58:52,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 194 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-14 16:58:52,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-12-14 16:58:52,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 117. [2021-12-14 16:58:52,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 73 states have (on average 1.178082191780822) internal successors, (86), 74 states have internal predecessors, (86), 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) [2021-12-14 16:58:52,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 147 transitions. [2021-12-14 16:58:52,684 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 147 transitions. Word has length 74 [2021-12-14 16:58:52,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 16:58:52,684 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 147 transitions. [2021-12-14 16:58:52,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-14 16:58:52,685 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 147 transitions. [2021-12-14 16:58:52,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-12-14 16:58:52,688 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 16:58:52,688 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 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, 1, 1, 1, 1] [2021-12-14 16:58:52,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 16:58:52,689 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 16:58:52,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:58:52,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1310312895, now seen corresponding path program 1 times [2021-12-14 16:58:52,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:58:52,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506131868] [2021-12-14 16:58:52,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:58:52,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:58:52,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:58:52,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 16:58:52,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:58:52,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 16:58:52,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:58:52,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 16:58:52,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:58:52,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 16:58:52,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:58:52,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-14 16:58:52,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:58:52,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-14 16:58:52,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:58:52,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 16:58:52,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:58:52,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 16:58:52,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:58:52,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-14 16:58:52,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:58:52,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-14 16:58:52,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:58:52,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-14 16:58:52,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:58:52,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-14 16:58:52,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:58:52,978 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-12-14 16:58:52,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:58:52,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506131868] [2021-12-14 16:58:52,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506131868] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 16:58:52,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1452871929] [2021-12-14 16:58:52,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:58:52,980 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 16:58:52,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 16:58:52,987 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 16:58:53,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-14 16:58:53,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:58:53,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 2056 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-14 16:58:53,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 16:58:53,566 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-12-14 16:58:53,567 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 16:58:53,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1452871929] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:58:53,567 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 16:58:53,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2021-12-14 16:58:53,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973357035] [2021-12-14 16:58:53,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:58:53,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 16:58:53,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:58:53,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 16:58:53,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-12-14 16:58:53,571 INFO L87 Difference]: Start difference. First operand 117 states and 147 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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) [2021-12-14 16:58:53,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 16:58:53,760 INFO L93 Difference]: Finished difference Result 199 states and 254 transitions. [2021-12-14 16:58:53,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 16:58:53,761 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), 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 74 [2021-12-14 16:58:53,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 16:58:53,765 INFO L225 Difference]: With dead ends: 199 [2021-12-14 16:58:53,768 INFO L226 Difference]: Without dead ends: 119 [2021-12-14 16:58:53,771 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-12-14 16:58:53,772 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 158 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 16:58:53,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 409 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 16:58:53,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-12-14 16:58:53,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2021-12-14 16:58:53,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 74 states have (on average 1.1756756756756757) internal successors, (87), 76 states have internal predecessors, (87), 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) [2021-12-14 16:58:53,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 150 transitions. [2021-12-14 16:58:53,799 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 150 transitions. Word has length 74 [2021-12-14 16:58:53,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 16:58:53,800 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 150 transitions. [2021-12-14 16:58:53,800 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), 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) [2021-12-14 16:58:53,800 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 150 transitions. [2021-12-14 16:58:53,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-12-14 16:58:53,802 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 16:58:53,803 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 16:58:53,833 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-14 16:58:54,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 16:58:54,018 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 16:58:54,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:58:54,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1377860737, now seen corresponding path program 1 times [2021-12-14 16:58:54,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:58:54,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606735542] [2021-12-14 16:58:54,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:58:54,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:58:54,084 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-14 16:58:54,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1583467209] [2021-12-14 16:58:54,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:58:54,085 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 16:58:54,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 16:58:54,086 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 16:58:54,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-14 16:58:54,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:58:54,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 2197 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-14 16:58:54,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 16:58:54,642 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-12-14 16:58:54,642 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 16:58:54,642 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:58:54,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606735542] [2021-12-14 16:58:54,643 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-14 16:58:54,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1583467209] [2021-12-14 16:58:54,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1583467209] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:58:54,643 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:58:54,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 16:58:54,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177903197] [2021-12-14 16:58:54,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:58:54,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 16:58:54,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:58:54,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 16:58:54,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-14 16:58:54,645 INFO L87 Difference]: Start difference. First operand 119 states and 150 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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) [2021-12-14 16:58:54,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 16:58:54,852 INFO L93 Difference]: Finished difference Result 189 states and 236 transitions. [2021-12-14 16:58:54,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 16:58:54,853 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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 89 [2021-12-14 16:58:54,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 16:58:54,854 INFO L225 Difference]: With dead ends: 189 [2021-12-14 16:58:54,854 INFO L226 Difference]: Without dead ends: 117 [2021-12-14 16:58:54,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-12-14 16:58:54,856 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 170 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-14 16:58:54,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 503 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-14 16:58:54,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-12-14 16:58:54,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2021-12-14 16:58:54,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 73 states have (on average 1.1643835616438356) internal successors, (85), 74 states have internal predecessors, (85), 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) [2021-12-14 16:58:54,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 146 transitions. [2021-12-14 16:58:54,875 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 146 transitions. Word has length 89 [2021-12-14 16:58:54,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 16:58:54,876 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 146 transitions. [2021-12-14 16:58:54,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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) [2021-12-14 16:58:54,876 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 146 transitions. [2021-12-14 16:58:54,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-14 16:58:54,877 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 16:58:54,878 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1] [2021-12-14 16:58:54,928 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-14 16:58:55,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-12-14 16:58:55,104 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 16:58:55,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:58:55,105 INFO L85 PathProgramCache]: Analyzing trace with hash -355007149, now seen corresponding path program 1 times [2021-12-14 16:58:55,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:58:55,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197010163] [2021-12-14 16:58:55,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:58:55,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:58:55,176 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-14 16:58:55,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [513896299] [2021-12-14 16:58:55,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:58:55,177 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 16:58:55,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 16:58:55,178 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 16:58:55,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-14 16:58:55,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:58:55,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 2479 conjuncts, 239 conjunts are in the unsatisfiable core [2021-12-14 16:58:55,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 16:58:55,789 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 [2021-12-14 16:58:56,303 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-12-14 16:58:56,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-12-14 16:58:56,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 16:58:56,751 INFO L354 Elim1Store]: treesize reduction 44, result has 47.0 percent of original size [2021-12-14 16:58:56,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 48 [2021-12-14 16:59:52,524 INFO L354 Elim1Store]: treesize reduction 53, result has 32.9 percent of original size [2021-12-14 16:59:52,524 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