./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c36dfa3b 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_swap_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 6f838ff631dd7d907eee223e4bc065b6ce71a3dd1969d0a88cef9ccdcf3b54d1 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-03 22:05:27,368 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 22:05:27,370 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 22:05:27,422 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 22:05:27,423 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 22:05:27,425 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 22:05:27,426 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 22:05:27,428 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 22:05:27,430 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 22:05:27,433 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 22:05:27,434 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 22:05:27,435 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 22:05:27,435 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 22:05:27,437 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 22:05:27,438 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 22:05:27,442 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 22:05:27,444 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 22:05:27,444 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 22:05:27,446 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 22:05:27,450 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 22:05:27,451 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 22:05:27,452 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 22:05:27,453 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 22:05:27,454 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 22:05:27,459 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 22:05:27,459 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 22:05:27,459 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 22:05:27,461 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 22:05:27,461 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 22:05:27,462 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 22:05:27,462 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 22:05:27,463 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 22:05:27,464 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 22:05:27,465 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 22:05:27,466 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 22:05:27,466 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 22:05:27,466 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 22:05:27,466 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 22:05:27,467 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 22:05:27,467 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 22:05:27,467 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 22:05:27,469 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-03 22:05:27,495 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 22:05:27,496 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 22:05:27,496 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-03 22:05:27,496 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-03 22:05:27,498 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-03 22:05:27,498 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-03 22:05:27,498 INFO L138 SettingsManager]: * Use SBE=true [2021-11-03 22:05:27,498 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 22:05:27,498 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 22:05:27,498 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 22:05:27,499 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 22:05:27,499 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 22:05:27,499 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 22:05:27,500 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 22:05:27,500 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 22:05:27,500 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 22:05:27,500 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 22:05:27,500 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 22:05:27,500 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 22:05:27,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 22:05:27,501 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 22:05:27,501 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 22:05:27,501 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 22:05:27,501 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-03 22:05:27,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 22:05:27,501 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-03 22:05:27,501 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-03 22:05:27,502 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 22:05:27,502 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 22:05:27,502 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f838ff631dd7d907eee223e4bc065b6ce71a3dd1969d0a88cef9ccdcf3b54d1 [2021-11-03 22:05:27,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 22:05:27,692 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 22:05:27,694 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 22:05:27,695 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 22:05:27,696 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 22:05:27,697 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i [2021-11-03 22:05:27,752 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee2ef31af/54cea38a6bc7453b83a478f8c45ace16/FLAG592d31d55 [2021-11-03 22:05:28,344 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 22:05:28,345 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i [2021-11-03 22:05:28,373 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee2ef31af/54cea38a6bc7453b83a478f8c45ace16/FLAG592d31d55 [2021-11-03 22:05:28,537 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee2ef31af/54cea38a6bc7453b83a478f8c45ace16 [2021-11-03 22:05:28,539 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 22:05:28,540 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 22:05:28,542 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 22:05:28,542 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 22:05:28,544 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 22:05:28,545 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 10:05:28" (1/1) ... [2021-11-03 22:05:28,546 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3396383 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 10:05:28, skipping insertion in model container [2021-11-03 22:05:28,546 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 10:05:28" (1/1) ... [2021-11-03 22:05:28,551 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 22:05:28,629 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 22:05:28,857 WARN L228 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_swap_harness.i[4493,4506] [2021-11-03 22:05:28,867 WARN L228 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_swap_harness.i[4553,4566] [2021-11-03 22:05:28,886 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 22:05:28,891 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 22:05:29,345 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 22:05:29,399 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:05:29,404 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:05:29,404 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:05:29,405 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:05:29,406 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:05:29,418 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:05:29,418 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:05:29,419 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:05:29,420 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:05:29,421 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:05:29,421 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:05:29,421 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:05:29,422 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:05:29,651 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 22:05:29,652 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 22:05:29,654 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 22:05:29,658 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 22:05:29,660 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 22:05:29,661 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 22:05:29,661 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 22:05:29,692 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 22:05:29,693 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 22:05:29,693 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 22:05:29,826 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:05:29,827 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:05:29,831 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:05:29,838 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:05:29,881 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 22:05:29,915 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 22:05:29,935 WARN L228 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_swap_harness.i[4493,4506] [2021-11-03 22:05:29,941 WARN L228 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_swap_harness.i[4553,4566] [2021-11-03 22:05:29,943 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 22:05:29,944 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 22:05:29,974 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 22:05:29,986 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:05:29,988 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:05:29,989 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:05:29,989 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:05:29,990 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:05:29,999 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:05:30,000 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:05:30,000 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:05:30,000 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:05:30,001 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:05:30,001 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:05:30,002 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:05:30,002 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:05:30,026 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 22:05:30,027 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 22:05:30,028 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 22:05:30,028 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 22:05:30,029 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 22:05:30,029 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 22:05:30,029 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 22:05:30,029 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 22:05:30,030 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 22:05:30,030 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 22:05:30,065 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:05:30,066 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:05:30,067 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:05:30,070 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:05:30,093 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 22:05:30,252 INFO L208 MainTranslator]: Completed translation [2021-11-03 22:05:30,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 10:05:30 WrapperNode [2021-11-03 22:05:30,252 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 22:05:30,253 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 22:05:30,253 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 22:05:30,253 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 22:05:30,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 10:05:30" (1/1) ... [2021-11-03 22:05:30,346 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 10:05:30" (1/1) ... [2021-11-03 22:05:30,464 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 22:05:30,465 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 22:05:30,465 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 22:05:30,465 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 22:05:30,472 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 10:05:30" (1/1) ... [2021-11-03 22:05:30,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 10:05:30" (1/1) ... [2021-11-03 22:05:30,486 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 10:05:30" (1/1) ... [2021-11-03 22:05:30,487 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 10:05:30" (1/1) ... [2021-11-03 22:05:30,549 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 10:05:30" (1/1) ... [2021-11-03 22:05:30,567 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 10:05:30" (1/1) ... [2021-11-03 22:05:30,585 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 10:05:30" (1/1) ... [2021-11-03 22:05:30,603 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 22:05:30,604 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 22:05:30,604 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 22:05:30,605 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 22:05:30,606 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 10:05:30" (1/1) ... [2021-11-03 22:05:30,611 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 22:05:30,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 22:05:30,636 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) [2021-11-03 22:05:30,652 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 [2021-11-03 22:05:30,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 22:05:30,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-03 22:05:30,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 22:05:30,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 22:05:30,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 22:05:30,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 22:05:30,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 22:05:30,673 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-03 22:05:30,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 22:05:30,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 22:05:30,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-03 22:05:30,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 22:05:35,262 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 22:05:35,263 INFO L299 CfgBuilder]: Removed 431 assume(true) statements. [2021-11-03 22:05:35,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 10:05:35 BoogieIcfgContainer [2021-11-03 22:05:35,266 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 22:05:35,267 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 22:05:35,267 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 22:05:35,270 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 22:05:35,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 10:05:28" (1/3) ... [2021-11-03 22:05:35,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a4d0df4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 10:05:35, skipping insertion in model container [2021-11-03 22:05:35,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 10:05:30" (2/3) ... [2021-11-03 22:05:35,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a4d0df4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 10:05:35, skipping insertion in model container [2021-11-03 22:05:35,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 10:05:35" (3/3) ... [2021-11-03 22:05:35,273 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_swap_harness.i [2021-11-03 22:05:35,278 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 22:05:35,279 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2021-11-03 22:05:35,322 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 22:05:35,331 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 [2021-11-03 22:05:35,332 INFO L340 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2021-11-03 22:05:35,364 INFO L276 IsEmpty]: Start isEmpty. Operand has 486 states, 470 states have (on average 1.4042553191489362) internal successors, (660), 485 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 22:05:35,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-03 22:05:35,369 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 22:05:35,369 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 22:05:35,370 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 22:05:35,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 22:05:35,374 INFO L85 PathProgramCache]: Analyzing trace with hash -230682450, now seen corresponding path program 1 times [2021-11-03 22:05:35,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 22:05:35,382 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167917034] [2021-11-03 22:05:35,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 22:05:35,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 22:05:35,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 22:05:35,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 22:05:35,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 22:05:35,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167917034] [2021-11-03 22:05:35,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167917034] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 22:05:35,875 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 22:05:35,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-03 22:05:35,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448772454] [2021-11-03 22:05:35,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 22:05:35,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 22:05:35,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 22:05:35,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 22:05:35,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 22:05:35,899 INFO L87 Difference]: Start difference. First operand has 486 states, 470 states have (on average 1.4042553191489362) internal successors, (660), 485 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 22:05:37,972 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 22:05:40,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 22:05:40,484 INFO L93 Difference]: Finished difference Result 968 states and 1315 transitions. [2021-11-03 22:05:40,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 22:05:40,486 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-03 22:05:40,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 22:05:40,494 INFO L225 Difference]: With dead ends: 968 [2021-11-03 22:05:40,495 INFO L226 Difference]: Without dead ends: 481 [2021-11-03 22:05:40,498 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 22:05:40,500 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3979.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.73ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4457.29ms IncrementalHoareTripleChecker+Time [2021-11-03 22:05:40,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 597 Unknown, 0 Unchecked, 9.73ms Time], IncrementalHoareTripleChecker [0 Valid, 596 Invalid, 1 Unknown, 0 Unchecked, 4457.29ms Time] [2021-11-03 22:05:40,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2021-11-03 22:05:40,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2021-11-03 22:05:40,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 466 states have (on average 1.2703862660944205) internal successors, (592), 480 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 22:05:40,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 592 transitions. [2021-11-03 22:05:40,552 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 592 transitions. Word has length 27 [2021-11-03 22:05:40,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 22:05:40,552 INFO L470 AbstractCegarLoop]: Abstraction has 481 states and 592 transitions. [2021-11-03 22:05:40,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 22:05:40,552 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 592 transitions. [2021-11-03 22:05:40,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-03 22:05:40,553 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 22:05:40,553 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 22:05:40,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 22:05:40,553 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 22:05:40,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 22:05:40,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1765736932, now seen corresponding path program 1 times [2021-11-03 22:05:40,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 22:05:40,554 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667926955] [2021-11-03 22:05:40,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 22:05:40,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 22:05:40,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 22:05:40,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 22:05:40,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 22:05:40,802 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667926955] [2021-11-03 22:05:40,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667926955] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 22:05:40,802 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 22:05:40,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 22:05:40,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716116756] [2021-11-03 22:05:40,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 22:05:40,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 22:05:40,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 22:05:40,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 22:05:40,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 22:05:40,805 INFO L87 Difference]: Start difference. First operand 481 states and 592 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 22:05:42,240 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 22:05:44,523 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 22:05:48,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 22:05:48,593 INFO L93 Difference]: Finished difference Result 949 states and 1169 transitions. [2021-11-03 22:05:48,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 22:05:48,594 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-03 22:05:48,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 22:05:48,596 INFO L225 Difference]: With dead ends: 949 [2021-11-03 22:05:48,596 INFO L226 Difference]: Without dead ends: 482 [2021-11-03 22:05:48,597 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 36.16ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 22:05:48,598 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 1183 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6818.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.95ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7671.62ms IncrementalHoareTripleChecker+Time [2021-11-03 22:05:48,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 1183 Unknown, 0 Unchecked, 18.95ms Time], IncrementalHoareTripleChecker [0 Valid, 1183 Invalid, 0 Unknown, 0 Unchecked, 7671.62ms Time] [2021-11-03 22:05:48,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2021-11-03 22:05:48,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 482. [2021-11-03 22:05:48,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 467 states have (on average 1.2698072805139187) internal successors, (593), 481 states have internal predecessors, (593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 22:05:48,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 593 transitions. [2021-11-03 22:05:48,615 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 593 transitions. Word has length 27 [2021-11-03 22:05:48,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 22:05:48,615 INFO L470 AbstractCegarLoop]: Abstraction has 482 states and 593 transitions. [2021-11-03 22:05:48,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 22:05:48,615 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 593 transitions. [2021-11-03 22:05:48,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-03 22:05:48,616 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 22:05:48,616 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 22:05:48,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-03 22:05:48,616 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 22:05:48,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 22:05:48,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1546882214, now seen corresponding path program 1 times [2021-11-03 22:05:48,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 22:05:48,617 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589905293] [2021-11-03 22:05:48,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 22:05:48,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 22:05:48,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 22:05:48,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 22:05:48,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 22:05:48,841 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589905293] [2021-11-03 22:05:48,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589905293] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 22:05:48,841 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 22:05:48,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 22:05:48,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083948483] [2021-11-03 22:05:48,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 22:05:48,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 22:05:48,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 22:05:48,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 22:05:48,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 22:05:48,842 INFO L87 Difference]: Start difference. First operand 482 states and 593 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 22:05:50,566 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 22:05:52,864 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 22:05:56,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 22:05:56,832 INFO L93 Difference]: Finished difference Result 932 states and 1146 transitions. [2021-11-03 22:05:56,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 22:05:56,832 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-03 22:05:56,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 22:05:56,834 INFO L225 Difference]: With dead ends: 932 [2021-11-03 22:05:56,834 INFO L226 Difference]: Without dead ends: 482 [2021-11-03 22:05:56,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 42.26ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 22:05:56,836 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 579 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 1117 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6994.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.02ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1117 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7866.28ms IncrementalHoareTripleChecker+Time [2021-11-03 22:05:56,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [579 Valid, 0 Invalid, 1120 Unknown, 0 Unchecked, 18.02ms Time], IncrementalHoareTripleChecker [2 Valid, 1117 Invalid, 1 Unknown, 0 Unchecked, 7866.28ms Time] [2021-11-03 22:05:56,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2021-11-03 22:05:56,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 482. [2021-11-03 22:05:56,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 467 states have (on average 1.265524625267666) internal successors, (591), 481 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 22:05:56,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 591 transitions. [2021-11-03 22:05:56,862 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 591 transitions. Word has length 27 [2021-11-03 22:05:56,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 22:05:56,862 INFO L470 AbstractCegarLoop]: Abstraction has 482 states and 591 transitions. [2021-11-03 22:05:56,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 22:05:56,862 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 591 transitions. [2021-11-03 22:05:56,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-03 22:05:56,864 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 22:05:56,864 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 22:05:56,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-03 22:05:56,864 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 22:05:56,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 22:05:56,865 INFO L85 PathProgramCache]: Analyzing trace with hash 290840714, now seen corresponding path program 1 times [2021-11-03 22:05:56,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 22:05:56,865 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842482341] [2021-11-03 22:05:56,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 22:05:56,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 22:05:56,942 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 22:05:56,943 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [553921286] [2021-11-03 22:05:56,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 22:05:56,943 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 22:05:56,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 22:05:56,944 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) [2021-11-03 22:05:56,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-03 22:05:57,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 22:05:57,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 2352 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 22:05:57,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 22:05:57,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 22:05:57,947 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 22:05:57,947 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 22:05:57,948 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842482341] [2021-11-03 22:05:57,948 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 22:05:57,948 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [553921286] [2021-11-03 22:05:57,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [553921286] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 22:05:57,948 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 22:05:57,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-03 22:05:57,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736870648] [2021-11-03 22:05:57,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 22:05:57,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 22:05:57,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 22:05:57,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 22:05:57,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-03 22:05:57,949 INFO L87 Difference]: Start difference. First operand 482 states and 591 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 22:05:59,799 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 22:06:02,131 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 22:06:04,633 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.50s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 22:06:07,115 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.48s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 22:06:12,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 22:06:12,410 INFO L93 Difference]: Finished difference Result 946 states and 1154 transitions. [2021-11-03 22:06:12,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-03 22:06:12,410 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-11-03 22:06:12,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 22:06:12,412 INFO L225 Difference]: With dead ends: 946 [2021-11-03 22:06:12,412 INFO L226 Difference]: Without dead ends: 516 [2021-11-03 22:06:12,413 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 226.71ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-03 22:06:12,413 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1604 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 1422 mSolverCounterSat, 25 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12129.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1604 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 32.57ms SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1422 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14163.38ms IncrementalHoareTripleChecker+Time [2021-11-03 22:06:12,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1604 Valid, 0 Invalid, 1450 Unknown, 0 Unchecked, 32.57ms Time], IncrementalHoareTripleChecker [25 Valid, 1422 Invalid, 3 Unknown, 0 Unchecked, 14163.38ms Time] [2021-11-03 22:06:12,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2021-11-03 22:06:12,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 482. [2021-11-03 22:06:12,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 467 states have (on average 1.2569593147751605) internal successors, (587), 481 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 22:06:12,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 587 transitions. [2021-11-03 22:06:12,426 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 587 transitions. Word has length 35 [2021-11-03 22:06:12,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 22:06:12,426 INFO L470 AbstractCegarLoop]: Abstraction has 482 states and 587 transitions. [2021-11-03 22:06:12,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 22:06:12,427 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 587 transitions. [2021-11-03 22:06:12,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-03 22:06:12,428 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 22:06:12,428 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 22:06:12,449 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-03 22:06:12,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 22:06:12,634 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 22:06:12,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 22:06:12,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1877285844, now seen corresponding path program 1 times [2021-11-03 22:06:12,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 22:06:12,635 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992231938] [2021-11-03 22:06:12,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 22:06:12,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 22:06:12,713 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 22:06:12,714 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1908693345] [2021-11-03 22:06:12,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 22:06:12,714 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 22:06:12,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 22:06:12,715 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) [2021-11-03 22:06:12,717 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-03 22:06:13,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 22:06:13,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 2537 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 22:06:13,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 22:06:13,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 22:06:13,476 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 22:06:13,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 22:06:13,476 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992231938] [2021-11-03 22:06:13,476 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 22:06:13,476 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908693345] [2021-11-03 22:06:13,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908693345] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 22:06:13,476 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 22:06:13,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 22:06:13,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922064451] [2021-11-03 22:06:13,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 22:06:13,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 22:06:13,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 22:06:13,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 22:06:13,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 22:06:13,478 INFO L87 Difference]: Start difference. First operand 482 states and 587 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 22:06:15,520 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 22:06:21,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 22:06:21,832 INFO L93 Difference]: Finished difference Result 1028 states and 1269 transitions. [2021-11-03 22:06:21,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 22:06:21,833 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-11-03 22:06:21,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 22:06:21,835 INFO L225 Difference]: With dead ends: 1028 [2021-11-03 22:06:21,835 INFO L226 Difference]: Without dead ends: 577 [2021-11-03 22:06:21,836 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 49.24ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 22:06:21,836 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 136 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 1844 mSolverCounterSat, 73 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7316.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.81ms SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1844 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8210.22ms IncrementalHoareTripleChecker+Time [2021-11-03 22:06:21,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 0 Invalid, 1918 Unknown, 0 Unchecked, 19.81ms Time], IncrementalHoareTripleChecker [73 Valid, 1844 Invalid, 1 Unknown, 0 Unchecked, 8210.22ms Time] [2021-11-03 22:06:21,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2021-11-03 22:06:21,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 520. [2021-11-03 22:06:21,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 505 states have (on average 1.2376237623762376) internal successors, (625), 519 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 22:06:21,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 625 transitions. [2021-11-03 22:06:21,848 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 625 transitions. Word has length 51 [2021-11-03 22:06:21,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 22:06:21,849 INFO L470 AbstractCegarLoop]: Abstraction has 520 states and 625 transitions. [2021-11-03 22:06:21,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 22:06:21,849 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 625 transitions. [2021-11-03 22:06:21,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-03 22:06:21,850 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 22:06:21,850 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 22:06:21,872 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-03 22:06:22,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 22:06:22,056 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 22:06:22,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 22:06:22,057 INFO L85 PathProgramCache]: Analyzing trace with hash 102278482, now seen corresponding path program 1 times [2021-11-03 22:06:22,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 22:06:22,057 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450663021] [2021-11-03 22:06:22,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 22:06:22,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 22:06:22,127 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 22:06:22,127 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1784781577] [2021-11-03 22:06:22,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 22:06:22,127 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 22:06:22,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 22:06:22,129 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) [2021-11-03 22:06:22,130 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-03 22:11:56,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 22:11:56,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 2542 conjuncts, 199 conjunts are in the unsatisfiable core [2021-11-03 22:11:56,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 22:11:56,695 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 [2021-11-03 22:11:57,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 22:11:57,226 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 25 treesize of output 13 [2021-11-03 22:11:57,428 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-03 22:11:57,428 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-03 22:11:57,599 INFO L354 Elim1Store]: treesize reduction 33, result has 21.4 percent of original size [2021-11-03 22:11:57,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 26 [2021-11-03 22:11:58,697 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 22:11:58,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450663021] [2021-11-03 22:11:58,698 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 22:11:58,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1784781577] [2021-11-03 22:11:58,698 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [ULTIMATE.start_aws_mul_u64_checked_~r.base, ULTIMATE.start_aws_mul_u64_checked_~r.offset] [2021-11-03 22:11:58,698 INFO L186 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2021-11-03 22:11:58,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-03 22:11:58,698 ERROR L172 FreeRefinementEngine]: Strategy CAMEL failed to provide any proof altough trace is infeasible [2021-11-03 22:11:58,699 INFO L628 BasicCegarLoop]: Counterexample might be feasible [2021-11-03 22:11:58,703 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (14 of 15 remaining) [2021-11-03 22:11:58,705 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (13 of 15 remaining) [2021-11-03 22:11:58,705 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (12 of 15 remaining) [2021-11-03 22:11:58,705 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (11 of 15 remaining) [2021-11-03 22:11:58,705 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (10 of 15 remaining) [2021-11-03 22:11:58,706 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (9 of 15 remaining) [2021-11-03 22:11:58,706 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (8 of 15 remaining) [2021-11-03 22:11:58,706 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (7 of 15 remaining) [2021-11-03 22:11:58,706 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (6 of 15 remaining) [2021-11-03 22:11:58,706 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION (5 of 15 remaining) [2021-11-03 22:11:58,706 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (4 of 15 remaining) [2021-11-03 22:11:58,707 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION (3 of 15 remaining) [2021-11-03 22:11:58,707 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION (2 of 15 remaining) [2021-11-03 22:11:58,707 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION (1 of 15 remaining) [2021-11-03 22:11:58,711 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION (0 of 15 remaining) [2021-11-03 22:11:58,924 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forcibly destroying the process [2021-11-03 22:11:58,968 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 137 [2021-11-03 22:11:58,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 22:11:58,971 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-03 22:11:58,972 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-03 22:11:58,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 10:11:58 BoogieIcfgContainer [2021-11-03 22:11:58,998 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-03 22:11:58,999 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-03 22:11:58,999 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-03 22:11:58,999 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-03 22:11:59,000 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 10:05:35" (3/4) ... [2021-11-03 22:11:59,002 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-03 22:11:59,002 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-03 22:11:59,003 INFO L158 Benchmark]: Toolchain (without parser) took 390462.14ms. Allocated memory was 102.8MB in the beginning and 606.1MB in the end (delta: 503.3MB). Free memory was 63.9MB in the beginning and 238.3MB in the end (delta: -174.4MB). Peak memory consumption was 329.3MB. Max. memory is 16.1GB. [2021-11-03 22:11:59,003 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 75.5MB. Free memory is still 32.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-03 22:11:59,003 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1710.97ms. Allocated memory was 102.8MB in the beginning and 134.2MB in the end (delta: 31.5MB). Free memory was 63.7MB in the beginning and 69.4MB in the end (delta: -5.7MB). Peak memory consumption was 53.3MB. Max. memory is 16.1GB. [2021-11-03 22:11:59,003 INFO L158 Benchmark]: Boogie Procedure Inliner took 211.08ms. Allocated memory is still 134.2MB. Free memory was 69.4MB in the beginning and 82.9MB in the end (delta: -13.5MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. [2021-11-03 22:11:59,004 INFO L158 Benchmark]: Boogie Preprocessor took 137.91ms. Allocated memory is still 134.2MB. Free memory was 82.9MB in the beginning and 68.4MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-03 22:11:59,004 INFO L158 Benchmark]: RCFGBuilder took 4662.09ms. Allocated memory was 134.2MB in the beginning and 606.1MB in the end (delta: 471.9MB). Free memory was 67.7MB in the beginning and 369.3MB in the end (delta: -301.6MB). Peak memory consumption was 242.6MB. Max. memory is 16.1GB. [2021-11-03 22:11:59,004 INFO L158 Benchmark]: TraceAbstraction took 383731.44ms. Allocated memory is still 606.1MB. Free memory was 368.2MB in the beginning and 239.4MB in the end (delta: 128.9MB). Peak memory consumption was 128.9MB. Max. memory is 16.1GB. [2021-11-03 22:11:59,004 INFO L158 Benchmark]: Witness Printer took 3.08ms. Allocated memory is still 606.1MB. Free memory was 239.4MB in the beginning and 238.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-03 22:11:59,005 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 75.5MB. Free memory is still 32.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1710.97ms. Allocated memory was 102.8MB in the beginning and 134.2MB in the end (delta: 31.5MB). Free memory was 63.7MB in the beginning and 69.4MB in the end (delta: -5.7MB). Peak memory consumption was 53.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 211.08ms. Allocated memory is still 134.2MB. Free memory was 69.4MB in the beginning and 82.9MB in the end (delta: -13.5MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 137.91ms. Allocated memory is still 134.2MB. Free memory was 82.9MB in the beginning and 68.4MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * RCFGBuilder took 4662.09ms. Allocated memory was 134.2MB in the beginning and 606.1MB in the end (delta: 471.9MB). Free memory was 67.7MB in the beginning and 369.3MB in the end (delta: -301.6MB). Peak memory consumption was 242.6MB. Max. memory is 16.1GB. * TraceAbstraction took 383731.44ms. Allocated memory is still 606.1MB. Free memory was 368.2MB in the beginning and 239.4MB in the end (delta: 128.9MB). Peak memory consumption was 128.9MB. Max. memory is 16.1GB. * Witness Printer took 3.08ms. Allocated memory is still 606.1MB. Free memory was 239.4MB in the beginning and 238.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint, overapproximation of large string literal at line 7792. Possible FailurePath: [L2762-L2767] static struct aws_allocator s_can_fail_allocator_static = { .mem_acquire = s_can_fail_malloc_allocator, .mem_release = s_can_fail_free_allocator, .mem_realloc = s_can_fail_realloc_allocator, .mem_calloc = s_can_fail_calloc_allocator, }; [L7359] static __thread int tl_last_error = 0; [L7791-L7939] static struct aws_error_info errors[] = { [(AWS_ERROR_SUCCESS)-0x0000] = { .literal_name = "AWS_ERROR_SUCCESS", .error_code = (AWS_ERROR_SUCCESS), .error_str = ("Success."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_SUCCESS" ", " "Success.", } , [(AWS_ERROR_OOM)-0x0000] = { .literal_name = "AWS_ERROR_OOM", .error_code = (AWS_ERROR_OOM), .error_str = ("Out of memory."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_OOM" ", " "Out of memory.", } , [(AWS_ERROR_UNKNOWN)-0x0000] = { .literal_name = "AWS_ERROR_UNKNOWN", .error_code = (AWS_ERROR_UNKNOWN), .error_str = ("Unknown error."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_UNKNOWN" ", " "Unknown error.", } , [(AWS_ERROR_SHORT_BUFFER)-0x0000] = { .literal_name = "AWS_ERROR_SHORT_BUFFER", .error_code = (AWS_ERROR_SHORT_BUFFER), .error_str = ("Buffer is not large enough to hold result."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_SHORT_BUFFER" ", " "Buffer is not large enough to hold result.", } , [(AWS_ERROR_OVERFLOW_DETECTED)-0x0000] = { .literal_name = "AWS_ERROR_OVERFLOW_DETECTED", .error_code = (AWS_ERROR_OVERFLOW_DETECTED), .error_str = ("Fixed size value overflow was detected."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_OVERFLOW_DETECTED" ", " "Fixed size value overflow was detected.", } , [(AWS_ERROR_UNSUPPORTED_OPERATION)-0x0000] = { .literal_name = "AWS_ERROR_UNSUPPORTED_OPERATION", .error_code = (AWS_ERROR_UNSUPPORTED_OPERATION), .error_str = ("Unsupported operation."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_UNSUPPORTED_OPERATION" ", " "Unsupported operation.", } , [(AWS_ERROR_INVALID_BUFFER_SIZE)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_BUFFER_SIZE", .error_code = (AWS_ERROR_INVALID_BUFFER_SIZE), .error_str = ("Invalid buffer size."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_BUFFER_SIZE" ", " "Invalid buffer size.", } , [(AWS_ERROR_INVALID_HEX_STR)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_HEX_STR", .error_code = (AWS_ERROR_INVALID_HEX_STR), .error_str = ("Invalid hex string."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_HEX_STR" ", " "Invalid hex string.", } , [(AWS_ERROR_INVALID_BASE64_STR)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_BASE64_STR", .error_code = (AWS_ERROR_INVALID_BASE64_STR), .error_str = ("Invalid base64 string."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_BASE64_STR" ", " "Invalid base64 string.", } , [(AWS_ERROR_INVALID_INDEX)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_INDEX", .error_code = (AWS_ERROR_INVALID_INDEX), .error_str = ("Invalid index for list access."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_INDEX" ", " "Invalid index for list access.", } , [(AWS_ERROR_THREAD_INVALID_SETTINGS)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_INVALID_SETTINGS", .error_code = (AWS_ERROR_THREAD_INVALID_SETTINGS), .error_str = ("Invalid thread settings."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_INVALID_SETTINGS" ", " "Invalid thread settings.", } , [(AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE", .error_code = (AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE), .error_str = ("Insufficent resources for thread."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE" ", " "Insufficent resources for thread.", } , [(AWS_ERROR_THREAD_NO_PERMISSIONS)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_NO_PERMISSIONS", .error_code = (AWS_ERROR_THREAD_NO_PERMISSIONS), .error_str = ("Insufficient permissions for thread operation."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_NO_PERMISSIONS" ", " "Insufficient permissions for thread operation.", } , [(AWS_ERROR_THREAD_NOT_JOINABLE)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_NOT_JOINABLE", .error_code = (AWS_ERROR_THREAD_NOT_JOINABLE), .error_str = ("Thread not joinable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_NOT_JOINABLE" ", " "Thread not joinable.", } , [(AWS_ERROR_THREAD_NO_SUCH_THREAD_ID)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_NO_SUCH_THREAD_ID", .error_code = (AWS_ERROR_THREAD_NO_SUCH_THREAD_ID), .error_str = ("No such thread ID."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_NO_SUCH_THREAD_ID" ", " "No such thread ID.", } , [(AWS_ERROR_THREAD_DEADLOCK_DETECTED)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_DEADLOCK_DETECTED", .error_code = (AWS_ERROR_THREAD_DEADLOCK_DETECTED), .error_str = ("Deadlock detected in thread."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_DEADLOCK_DETECTED" ", " "Deadlock detected in thread.", } , [(AWS_ERROR_MUTEX_NOT_INIT)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_NOT_INIT", .error_code = (AWS_ERROR_MUTEX_NOT_INIT), .error_str = ("Mutex not initialized."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_NOT_INIT" ", " "Mutex not initialized.", } , [(AWS_ERROR_MUTEX_TIMEOUT)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_TIMEOUT", .error_code = (AWS_ERROR_MUTEX_TIMEOUT), .error_str = ("Mutex operation timed out."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_TIMEOUT" ", " "Mutex operation timed out.", } , [(AWS_ERROR_MUTEX_CALLER_NOT_OWNER)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_CALLER_NOT_OWNER", .error_code = (AWS_ERROR_MUTEX_CALLER_NOT_OWNER), .error_str = ("The caller of a mutex operation was not the owner."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_CALLER_NOT_OWNER" ", " "The caller of a mutex operation was not the owner.", } , [(AWS_ERROR_MUTEX_FAILED)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_FAILED", .error_code = (AWS_ERROR_MUTEX_FAILED), .error_str = ("Mutex operation failed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_FAILED" ", " "Mutex operation failed.", } , [(AWS_ERROR_COND_VARIABLE_INIT_FAILED)-0x0000] = { .literal_name = "AWS_ERROR_COND_VARIABLE_INIT_FAILED", .error_code = (AWS_ERROR_COND_VARIABLE_INIT_FAILED), .error_str = ("Condition variable initialization failed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_COND_VARIABLE_INIT_FAILED" ", " "Condition variable initialization failed.", } , [(AWS_ERROR_COND_VARIABLE_TIMED_OUT)-0x0000] = { .literal_name = "AWS_ERROR_COND_VARIABLE_TIMED_OUT", .error_code = (AWS_ERROR_COND_VARIABLE_TIMED_OUT), .error_str = ("Condition variable wait timed out."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_COND_VARIABLE_TIMED_OUT" ", " "Condition variable wait timed out.", } , [(AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN)-0x0000] = { .literal_name = "AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN", .error_code = (AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN), .error_str = ("Condition variable unknown error."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN" ", " "Condition variable unknown error.", } , [(AWS_ERROR_CLOCK_FAILURE)-0x0000] = { .literal_name = "AWS_ERROR_CLOCK_FAILURE", .error_code = (AWS_ERROR_CLOCK_FAILURE), .error_str = ("Clock operation failed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_CLOCK_FAILURE" ", " "Clock operation failed.", } , [(AWS_ERROR_LIST_EMPTY)-0x0000] = { .literal_name = "AWS_ERROR_LIST_EMPTY", .error_code = (AWS_ERROR_LIST_EMPTY), .error_str = ("Empty list."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_LIST_EMPTY" ", " "Empty list.", } , [(AWS_ERROR_DEST_COPY_TOO_SMALL)-0x0000] = { .literal_name = "AWS_ERROR_DEST_COPY_TOO_SMALL", .error_code = (AWS_ERROR_DEST_COPY_TOO_SMALL), .error_str = ("Destination of copy is too small."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_DEST_COPY_TOO_SMALL" ", " "Destination of copy is too small.", } , [(AWS_ERROR_LIST_EXCEEDS_MAX_SIZE)-0x0000] = { .literal_name = "AWS_ERROR_LIST_EXCEEDS_MAX_SIZE", .error_code = (AWS_ERROR_LIST_EXCEEDS_MAX_SIZE), .error_str = ("A requested operation on a list would exceed it's max size."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_LIST_EXCEEDS_MAX_SIZE" ", " "A requested operation on a list would exceed it's max size.", } , [(AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK)-0x0000] = { .literal_name = "AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK", .error_code = (AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK), .error_str = ("Attempt to shrink a list in static mode."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK" ", " "Attempt to shrink a list in static mode.", } , [(AWS_ERROR_PRIORITY_QUEUE_FULL)-0x0000] = { .literal_name = "AWS_ERROR_PRIORITY_QUEUE_FULL", .error_code = (AWS_ERROR_PRIORITY_QUEUE_FULL), .error_str = ("Attempt to add items to a full preallocated queue in static mode."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_PRIORITY_QUEUE_FULL" ", " "Attempt to add items to a full preallocated queue in static mode.", } , [(AWS_ERROR_PRIORITY_QUEUE_EMPTY)-0x0000] = { .literal_name = "AWS_ERROR_PRIORITY_QUEUE_EMPTY", .error_code = (AWS_ERROR_PRIORITY_QUEUE_EMPTY), .error_str = ("Attempt to pop an item from an empty queue."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_PRIORITY_QUEUE_EMPTY" ", " "Attempt to pop an item from an empty queue.", } , [(AWS_ERROR_PRIORITY_QUEUE_BAD_NODE)-0x0000] = { .literal_name = "AWS_ERROR_PRIORITY_QUEUE_BAD_NODE", .error_code = (AWS_ERROR_PRIORITY_QUEUE_BAD_NODE), .error_str = ("Bad node handle passed to remove."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_PRIORITY_QUEUE_BAD_NODE" ", " "Bad node handle passed to remove.", } , [(AWS_ERROR_HASHTBL_ITEM_NOT_FOUND)-0x0000] = { .literal_name = "AWS_ERROR_HASHTBL_ITEM_NOT_FOUND", .error_code = (AWS_ERROR_HASHTBL_ITEM_NOT_FOUND), .error_str = ("Item not found in hash table."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_HASHTBL_ITEM_NOT_FOUND" ", " "Item not found in hash table.", } , [(AWS_ERROR_INVALID_DATE_STR)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_DATE_STR", .error_code = (AWS_ERROR_INVALID_DATE_STR), .error_str = ("Date string is invalid and cannot be parsed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_DATE_STR" ", " "Date string is invalid and cannot be parsed.", } , [(AWS_ERROR_INVALID_ARGUMENT)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_ARGUMENT", .error_code = (AWS_ERROR_INVALID_ARGUMENT), .error_str = ("An invalid argument was passed to a function."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_ARGUMENT" ", " "An invalid argument was passed to a function.", } , [(AWS_ERROR_RANDOM_GEN_FAILED)-0x0000] = { .literal_name = "AWS_ERROR_RANDOM_GEN_FAILED", .error_code = (AWS_ERROR_RANDOM_GEN_FAILED), .error_str = ("A call to the random number generator failed. Retry later."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_RANDOM_GEN_FAILED" ", " "A call to the random number generator failed. Retry later.", } , [(AWS_ERROR_MALFORMED_INPUT_STRING)-0x0000] = { .literal_name = "AWS_ERROR_MALFORMED_INPUT_STRING", .error_code = (AWS_ERROR_MALFORMED_INPUT_STRING), .error_str = ("An input string was passed to a parser and the string was incorrectly formatted."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MALFORMED_INPUT_STRING" ", " "An input string was passed to a parser and the string was incorrectly formatted.", } , [(AWS_ERROR_UNIMPLEMENTED)-0x0000] = { .literal_name = "AWS_ERROR_UNIMPLEMENTED", .error_code = (AWS_ERROR_UNIMPLEMENTED), .error_str = ("A function was called, but is not implemented."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_UNIMPLEMENTED" ", " "A function was called, but is not implemented.", } , [(AWS_ERROR_INVALID_STATE)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_STATE", .error_code = (AWS_ERROR_INVALID_STATE), .error_str = ("An invalid state was encountered."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_STATE" ", " "An invalid state was encountered.", } , [(AWS_ERROR_ENVIRONMENT_GET)-0x0000] = { .literal_name = "AWS_ERROR_ENVIRONMENT_GET", .error_code = (AWS_ERROR_ENVIRONMENT_GET), .error_str = ("System call failure when getting an environment variable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_ENVIRONMENT_GET" ", " "System call failure when getting an environment variable.", } , [(AWS_ERROR_ENVIRONMENT_SET)-0x0000] = { .literal_name = "AWS_ERROR_ENVIRONMENT_SET", .error_code = (AWS_ERROR_ENVIRONMENT_SET), .error_str = ("System call failure when setting an environment variable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_ENVIRONMENT_SET" ", " "System call failure when setting an environment variable.", } , [(AWS_ERROR_ENVIRONMENT_UNSET)-0x0000] = { .literal_name = "AWS_ERROR_ENVIRONMENT_UNSET", .error_code = (AWS_ERROR_ENVIRONMENT_UNSET), .error_str = ("System call failure when unsetting an environment variable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_ENVIRONMENT_UNSET" ", " "System call failure when unsetting an environment variable.", } , [(AWS_ERROR_SYS_CALL_FAILURE)-0x0000] = { .literal_name = "AWS_ERROR_SYS_CALL_FAILURE", .error_code = (AWS_ERROR_SYS_CALL_FAILURE), .error_str = ("System call failure"), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_SYS_CALL_FAILURE" ", " "System call failure", } , [(AWS_ERROR_FILE_INVALID_PATH)-0x0000] = { .literal_name = "AWS_ERROR_FILE_INVALID_PATH", .error_code = (AWS_ERROR_FILE_INVALID_PATH), .error_str = ("Invalid file path."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_FILE_INVALID_PATH" ", " "Invalid file path.", } , [(AWS_ERROR_MAX_FDS_EXCEEDED)-0x0000] = { .literal_name = "AWS_ERROR_MAX_FDS_EXCEEDED", .error_code = (AWS_ERROR_MAX_FDS_EXCEEDED), .error_str = ("The maximum number of fds has been exceeded."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MAX_FDS_EXCEEDED" ", " "The maximum number of fds has been exceeded.", } , [(AWS_ERROR_NO_PERMISSION)-0x0000] = { .literal_name = "AWS_ERROR_NO_PERMISSION", .error_code = (AWS_ERROR_NO_PERMISSION), .error_str = ("User does not have permission to perform the requested action."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_NO_PERMISSION" ", " "User does not have permission to perform the requested action.", } , [(AWS_ERROR_STREAM_UNSEEKABLE)-0x0000] = { .literal_name = "AWS_ERROR_STREAM_UNSEEKABLE", .error_code = (AWS_ERROR_STREAM_UNSEEKABLE), .error_str = ("Stream does not support seek operations"), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_STREAM_UNSEEKABLE" ", " "Stream does not support seek operations", } , }; [L7942-L7945] static struct aws_error_info_list s_list = { .error_list = errors, .count = (sizeof(errors) / sizeof((errors)[0])), }; [L7947-L7956] static struct aws_log_subject_info s_common_log_subject_infos[] = { { .subject_id = (AWS_LS_COMMON_GENERAL), .subject_name = ("aws-c-common"), .subject_description = ("Subject for aws-c-common logging that doesn't belong to any particular category") } , { .subject_id = (AWS_LS_COMMON_TASK_SCHEDULER), .subject_name = ("task-scheduler"), .subject_description = ("Subject for task scheduler or task specific logging.") } , }; [L7958-L7961] static struct aws_log_subject_info_list s_common_log_subject_list = { .subject_list = s_common_log_subject_infos, .count = (sizeof(s_common_log_subject_infos) / sizeof((s_common_log_subject_infos)[0])), }; [L7963-L7967] static _Bool s_common_library_initialized = 0 ; [L7981] struct aws_array_list list = {0, __VERIFIER_nondet_ulong(), __VERIFIER_nondet_ulong(), __VERIFIER_nondet_ulong(), 0}; [L7984] size_t index_a = __VERIFIER_nondet_ulong(); [L7985] size_t index_b = __VERIFIER_nondet_ulong(); [L7005] EXPR list->item_size [L7004-L7005] _Bool item_size_is_bounded = list->item_size <= max_item_size; [L7008] EXPR list->length [L7007-L7008] _Bool length_is_bounded = list->length <= max_initial_item_allocation; [L7009] return item_size_is_bounded && length_is_bounded; [L211] COND FALSE !(!cond) [L7013] EXPR list->current_size [L7013] list->current_size == 0 && list->length == 0 [L7013] EXPR list->length [L7013] list->current_size == 0 && list->length == 0 [L7013] COND TRUE list->current_size == 0 && list->length == 0 [L7014] list->data [L211] COND FALSE !(!cond) [L2786] return &s_can_fail_allocator_static; [L7017] list->alloc = can_fail_allocator() [L3263] COND FALSE !(!list) [L3268] size_t required_size = 0; [L3272] EXPR list->length [L3272] EXPR list->item_size [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2496] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2498] *r = a * b [L2499] return (0); [L2588] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L3270-L3272] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L3275] EXPR list->current_size [L3275] EXPR \read(required_size) [L3274-L3275] _Bool current_size_is_valid = (list->current_size >= required_size); [L3279] EXPR list->current_size [L3279-L3280] EXPR list->current_size == 0 && list->data == ((void *)0) [L3279] EXPR list->data [L3279-L3280] EXPR list->current_size == 0 && list->data == ((void *)0) [L3279-L3281] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L3277-L3281] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L3284] EXPR list->item_size [L3283-L3284] _Bool item_size_is_valid = (list->item_size != 0); [L3285] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L3268] size_t required_size = 0; [L3285] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L211] COND FALSE !(!cond) [L3493] EXPR list->length [L3493] !list->length || list->data [L211] COND FALSE !(!cond) [L3263] COND FALSE !(!list) [L3268] size_t required_size = 0; [L3272] EXPR list->length [L3272] EXPR list->item_size [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2496] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2498] *r = a * b [L2499] return (0); [L2588] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L3270-L3272] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L3275] EXPR list->current_size [L3275] EXPR \read(required_size) [L3274-L3275] _Bool current_size_is_valid = (list->current_size >= required_size); [L3279] EXPR list->current_size [L3279-L3280] EXPR list->current_size == 0 && list->data == ((void *)0) [L3279] EXPR list->data [L3279-L3280] EXPR list->current_size == 0 && list->data == ((void *)0) [L3279-L3281] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L3277-L3281] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L3284] EXPR list->item_size [L3283-L3284] _Bool item_size_is_valid = (list->item_size != 0); [L3285] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L3268] size_t required_size = 0; [L3285] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L211] COND FALSE !(!cond) [L3495] EXPR list->length [L3495] size_t len = list->length; [L3263] COND FALSE !(!list) [L3268] size_t required_size = 0; [L3272] EXPR list->length [L3272] EXPR list->item_size [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2496] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2498] *r = a * b [L2499] return (0); [L2588] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L3270-L3272] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L3275] EXPR list->current_size [L3275] EXPR \read(required_size) [L3274-L3275] _Bool current_size_is_valid = (list->current_size >= required_size); [L3279] EXPR list->current_size [L3279-L3280] EXPR list->current_size == 0 && list->data == ((void *)0) [L3279] EXPR list->data [L3279-L3280] EXPR list->current_size == 0 && list->data == ((void *)0) [L3279-L3281] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L3277-L3281] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L3284] EXPR list->item_size [L3283-L3284] _Bool item_size_is_valid = (list->item_size != 0); [L3285] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L3268] size_t required_size = 0; [L3285] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L223] COND TRUE !cond [L223] reach_error() - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 486 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 383650.63ms, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 22.53ms, AutomataDifference: 43236.77ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 18.04ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 6 mSolverCounterUnknown, 2319 SdHoareTripleChecker+Valid, 42368.79ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2319 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 37237.40ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2570 mSDsCounter, 100 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6162 IncrementalHoareTripleChecker+Invalid, 6268 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 100 mSolverCounterUnsat, 0 mSDtfsCounter, 6162 mSolverCounterSat, 99.08ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 354.40ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=520occurred in iteration=5, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 104.82ms AutomataMinimizationTime, 5 MinimizatonAttempts, 91 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 340.67ms SsaConstructionTime, 335326.03ms SatisfiabilityAnalysisTime, 3355.17ms InterpolantComputationTime, 218 NumberOfCodeBlocks, 218 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 162 ConstructedInterpolants, 0 QuantifiedInterpolants, 253 SizeOfPredicates, 6 NumberOfNonLiveVariables, 7431 ConjunctsInSsa, 209 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-03 22:11:59,231 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-11-03 22:11:59,244 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_swap_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.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 6f838ff631dd7d907eee223e4bc065b6ce71a3dd1969d0a88cef9ccdcf3b54d1 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-03 22:12:00,724 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 22:12:00,726 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 22:12:00,752 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 22:12:00,752 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 22:12:00,753 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 22:12:00,754 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 22:12:00,755 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 22:12:00,756 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 22:12:00,757 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 22:12:00,758 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 22:12:00,758 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 22:12:00,759 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 22:12:00,759 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 22:12:00,760 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 22:12:00,761 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 22:12:00,762 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 22:12:00,762 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 22:12:00,763 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 22:12:00,764 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 22:12:00,765 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 22:12:00,766 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 22:12:00,767 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 22:12:00,767 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 22:12:00,769 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 22:12:00,769 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 22:12:00,770 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 22:12:00,770 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 22:12:00,771 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 22:12:00,771 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 22:12:00,771 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 22:12:00,772 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 22:12:00,772 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 22:12:00,773 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 22:12:00,774 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 22:12:00,774 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 22:12:00,774 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 22:12:00,775 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 22:12:00,775 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 22:12:00,775 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 22:12:00,776 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 22:12:00,777 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-11-03 22:12:00,792 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 22:12:00,793 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 22:12:00,793 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-03 22:12:00,793 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-03 22:12:00,794 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-03 22:12:00,794 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-03 22:12:00,794 INFO L138 SettingsManager]: * Use SBE=true [2021-11-03 22:12:00,795 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 22:12:00,795 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 22:12:00,795 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 22:12:00,795 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 22:12:00,795 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 22:12:00,796 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 22:12:00,796 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 22:12:00,796 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 22:12:00,796 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 22:12:00,796 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 22:12:00,797 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 22:12:00,797 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 22:12:00,797 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 22:12:00,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 22:12:00,797 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 22:12:00,798 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 22:12:00,798 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 22:12:00,798 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-03 22:12:00,798 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 22:12:00,798 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-03 22:12:00,798 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-03 22:12:00,799 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 22:12:00,799 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 22:12:00,799 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 22:12:00,799 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f838ff631dd7d907eee223e4bc065b6ce71a3dd1969d0a88cef9ccdcf3b54d1 [2021-11-03 22:12:01,105 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 22:12:01,126 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 22:12:01,128 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 22:12:01,129 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 22:12:01,130 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 22:12:01,131 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i [2021-11-03 22:12:01,181 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42ebcde71/0e8a29de7114442e89e88b8af84f9bd3/FLAG4167f31b3 [2021-11-03 22:12:01,771 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 22:12:01,772 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i [2021-11-03 22:12:01,798 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42ebcde71/0e8a29de7114442e89e88b8af84f9bd3/FLAG4167f31b3 [2021-11-03 22:12:02,213 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42ebcde71/0e8a29de7114442e89e88b8af84f9bd3 [2021-11-03 22:12:02,216 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 22:12:02,217 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 22:12:02,218 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 22:12:02,218 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 22:12:02,221 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 22:12:02,221 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 10:12:02" (1/1) ... [2021-11-03 22:12:02,222 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@579d9c56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 10:12:02, skipping insertion in model container [2021-11-03 22:12:02,222 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 10:12:02" (1/1) ... [2021-11-03 22:12:02,228 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 22:12:02,301 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 22:12:02,516 WARN L228 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_swap_harness.i[4493,4506] [2021-11-03 22:12:02,522 WARN L228 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_swap_harness.i[4553,4566] [2021-11-03 22:12:02,536 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 22:12:02,540 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 22:12:02,975 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 22:12:03,037 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:12:03,038 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:12:03,038 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:12:03,041 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:12:03,042 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:12:03,061 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:12:03,062 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:12:03,062 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:12:03,063 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:12:03,065 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:12:03,065 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:12:03,066 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:12:03,066 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:12:03,288 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 22:12:03,290 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 22:12:03,291 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 22:12:03,293 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 22:12:03,294 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 22:12:03,295 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 22:12:03,295 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 22:12:03,296 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 22:12:03,299 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 22:12:03,299 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 22:12:03,377 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:12:03,378 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:12:03,382 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:12:03,387 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:12:03,421 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 22:12:03,444 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 22:12:03,454 WARN L228 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_swap_harness.i[4493,4506] [2021-11-03 22:12:03,454 WARN L228 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_swap_harness.i[4553,4566] [2021-11-03 22:12:03,456 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 22:12:03,457 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 22:12:03,484 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 22:12:03,496 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:12:03,496 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:12:03,497 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:12:03,497 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:12:03,497 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:12:03,502 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:12:03,502 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:12:03,503 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:12:03,503 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:12:03,504 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:12:03,504 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:12:03,504 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:12:03,505 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:12:03,545 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 22:12:03,546 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 22:12:03,546 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 22:12:03,547 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 22:12:03,547 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 22:12:03,548 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 22:12:03,548 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 22:12:03,548 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 22:12:03,548 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 22:12:03,549 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 22:12:03,586 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:12:03,587 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:12:03,588 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:12:03,592 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 22:12:03,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 22:12:03,813 INFO L208 MainTranslator]: Completed translation [2021-11-03 22:12:03,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 10:12:03 WrapperNode [2021-11-03 22:12:03,814 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 22:12:03,815 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 22:12:03,815 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 22:12:03,815 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 22:12:03,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 10:12:03" (1/1) ... [2021-11-03 22:12:03,886 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 10:12:03" (1/1) ... [2021-11-03 22:12:03,994 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 22:12:03,995 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 22:12:03,995 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 22:12:03,996 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 22:12:04,002 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 10:12:03" (1/1) ... [2021-11-03 22:12:04,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 10:12:03" (1/1) ... [2021-11-03 22:12:04,012 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 10:12:03" (1/1) ... [2021-11-03 22:12:04,012 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 10:12:03" (1/1) ... [2021-11-03 22:12:04,083 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 10:12:03" (1/1) ... [2021-11-03 22:12:04,098 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 10:12:03" (1/1) ... [2021-11-03 22:12:04,109 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 10:12:03" (1/1) ... [2021-11-03 22:12:04,123 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 22:12:04,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 22:12:04,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 22:12:04,124 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 22:12:04,125 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 10:12:03" (1/1) ... [2021-11-03 22:12:04,137 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 22:12:04,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 22:12:04,154 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) [2021-11-03 22:12:04,168 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 [2021-11-03 22:12:04,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 22:12:04,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 22:12:04,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 22:12:04,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 22:12:04,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 22:12:04,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 22:12:04,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 22:12:04,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 22:12:04,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 22:12:04,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 22:12:04,191 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-03 22:12:04,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 22:12:04,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 22:12:04,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 22:12:04,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 22:12:10,766 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 22:12:10,767 INFO L299 CfgBuilder]: Removed 431 assume(true) statements. [2021-11-03 22:12:10,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 10:12:10 BoogieIcfgContainer [2021-11-03 22:12:10,770 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 22:12:10,772 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 22:12:10,772 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 22:12:10,774 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 22:12:10,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 10:12:02" (1/3) ... [2021-11-03 22:12:10,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5510fb61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 10:12:10, skipping insertion in model container [2021-11-03 22:12:10,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 10:12:03" (2/3) ... [2021-11-03 22:12:10,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5510fb61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 10:12:10, skipping insertion in model container [2021-11-03 22:12:10,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 10:12:10" (3/3) ... [2021-11-03 22:12:10,777 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_swap_harness.i [2021-11-03 22:12:10,781 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 22:12:10,781 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2021-11-03 22:12:10,829 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 22:12:10,834 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 [2021-11-03 22:12:10,834 INFO L340 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2021-11-03 22:12:10,856 INFO L276 IsEmpty]: Start isEmpty. Operand has 486 states, 470 states have (on average 1.4042553191489362) internal successors, (660), 485 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 22:12:10,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-03 22:12:10,861 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 22:12:10,861 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 22:12:10,862 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 22:12:10,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 22:12:10,866 INFO L85 PathProgramCache]: Analyzing trace with hash -230682450, now seen corresponding path program 1 times [2021-11-03 22:12:10,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-03 22:12:10,880 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [680914656] [2021-11-03 22:12:10,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 22:12:10,881 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 22:12:10,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-03 22:12:10,883 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 22:12:10,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 22:12:12,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 22:12:13,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 1339 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 22:12:13,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 22:12:13,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 22:12:13,183 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 22:12:13,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 22:12:13,245 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-03 22:12:13,246 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [680914656] [2021-11-03 22:12:13,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [680914656] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 22:12:13,248 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 22:12:13,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 22:12:13,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57912241] [2021-11-03 22:12:13,252 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-03 22:12:13,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 22:12:13,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-03 22:12:13,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 22:12:13,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 22:12:13,294 INFO L87 Difference]: Start difference. First operand has 486 states, 470 states have (on average 1.4042553191489362) internal successors, (660), 485 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 22:12:15,537 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 22:12:20,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 22:12:20,022 INFO L93 Difference]: Finished difference Result 968 states and 1315 transitions. [2021-11-03 22:12:20,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 22:12:20,024 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-03 22:12:20,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 22:12:20,034 INFO L225 Difference]: With dead ends: 968 [2021-11-03 22:12:20,034 INFO L226 Difference]: Without dead ends: 481 [2021-11-03 22:12:20,038 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.19ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 22:12:20,044 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5919.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.85ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6598.23ms IncrementalHoareTripleChecker+Time [2021-11-03 22:12:20,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 597 Unknown, 0 Unchecked, 9.85ms Time], IncrementalHoareTripleChecker [0 Valid, 596 Invalid, 1 Unknown, 0 Unchecked, 6598.23ms Time] [2021-11-03 22:12:20,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2021-11-03 22:12:20,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2021-11-03 22:12:20,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 466 states have (on average 1.2703862660944205) internal successors, (592), 480 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 22:12:20,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 592 transitions. [2021-11-03 22:12:20,094 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 592 transitions. Word has length 27 [2021-11-03 22:12:20,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 22:12:20,095 INFO L470 AbstractCegarLoop]: Abstraction has 481 states and 592 transitions. [2021-11-03 22:12:20,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 22:12:20,095 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 592 transitions. [2021-11-03 22:12:20,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-03 22:12:20,096 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 22:12:20,096 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 22:12:20,133 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 22:12:20,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-03 22:12:20,318 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 22:12:20,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 22:12:20,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1765736932, now seen corresponding path program 1 times [2021-11-03 22:12:20,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-03 22:12:20,324 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1762313458] [2021-11-03 22:12:20,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 22:12:20,324 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 22:12:20,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-03 22:12:20,328 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 22:12:20,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 22:12:22,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 22:12:22,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 1339 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 22:12:22,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 22:12:22,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 22:12:22,585 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 22:12:22,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 22:12:22,695 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-03 22:12:22,695 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1762313458] [2021-11-03 22:12:22,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1762313458] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 22:12:22,695 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 22:12:22,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 22:12:22,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248730410] [2021-11-03 22:12:22,695 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-03 22:12:22,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 22:12:22,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-03 22:12:22,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 22:12:22,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 22:12:22,697 INFO L87 Difference]: Start difference. First operand 481 states and 592 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 22:12:24,908 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 22:12:31,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 22:12:31,977 INFO L93 Difference]: Finished difference Result 949 states and 1169 transitions. [2021-11-03 22:12:31,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 22:12:31,978 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-03 22:12:31,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 22:12:31,980 INFO L225 Difference]: With dead ends: 949 [2021-11-03 22:12:31,981 INFO L226 Difference]: Without dead ends: 482 [2021-11-03 22:12:31,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.62ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 22:12:31,985 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 1181 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8355.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.12ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1181 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9158.60ms IncrementalHoareTripleChecker+Time [2021-11-03 22:12:31,985 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 1182 Unknown, 0 Unchecked, 17.12ms Time], IncrementalHoareTripleChecker [0 Valid, 1181 Invalid, 1 Unknown, 0 Unchecked, 9158.60ms Time] [2021-11-03 22:12:31,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2021-11-03 22:12:31,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 482. [2021-11-03 22:12:32,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 467 states have (on average 1.2698072805139187) internal successors, (593), 481 states have internal predecessors, (593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 22:12:32,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 593 transitions. [2021-11-03 22:12:32,002 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 593 transitions. Word has length 27 [2021-11-03 22:12:32,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 22:12:32,002 INFO L470 AbstractCegarLoop]: Abstraction has 482 states and 593 transitions. [2021-11-03 22:12:32,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 22:12:32,002 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 593 transitions. [2021-11-03 22:12:32,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-03 22:12:32,006 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 22:12:32,006 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 22:12:32,040 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 22:12:32,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-03 22:12:32,207 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 22:12:32,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 22:12:32,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1546882214, now seen corresponding path program 1 times [2021-11-03 22:12:32,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-03 22:12:32,211 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1000056923] [2021-11-03 22:12:32,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 22:12:32,211 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 22:12:32,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-03 22:12:32,212 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 22:12:32,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 22:12:34,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 22:12:34,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 1341 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-03 22:12:34,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 22:12:34,939 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 22:12:34,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 23 [2021-11-03 22:12:35,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 22:12:35,081 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 22:12:35,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 22:12:35,577 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-03 22:12:35,577 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1000056923] [2021-11-03 22:12:35,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1000056923] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 22:12:35,577 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 22:12:35,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 11 [2021-11-03 22:12:35,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286518333] [2021-11-03 22:12:35,578 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-03 22:12:35,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-03 22:12:35,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-03 22:12:35,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-03 22:12:35,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-03 22:12:35,579 INFO L87 Difference]: Start difference. First operand 482 states and 593 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 22:12:37,770 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 22:13:07,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 22:13:07,532 INFO L93 Difference]: Finished difference Result 1402 states and 1721 transitions. [2021-11-03 22:13:07,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 22:13:07,533 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-03 22:13:07,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 22:13:07,537 INFO L225 Difference]: With dead ends: 1402 [2021-11-03 22:13:07,538 INFO L226 Difference]: Without dead ends: 935 [2021-11-03 22:13:07,539 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1631.70ms TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2021-11-03 22:13:07,539 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 2796 mSDsluCounter, 2705 mSDsCounter, 0 mSdLazyCounter, 4517 mSolverCounterSat, 65 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27710.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2796 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 4583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 68.52ms SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 4517 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30694.69ms IncrementalHoareTripleChecker+Time [2021-11-03 22:13:07,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2796 Valid, 0 Invalid, 4583 Unknown, 0 Unchecked, 68.52ms Time], IncrementalHoareTripleChecker [65 Valid, 4517 Invalid, 1 Unknown, 0 Unchecked, 30694.69ms Time] [2021-11-03 22:13:07,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 935 states. [2021-11-03 22:13:07,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 935 to 478. [2021-11-03 22:13:07,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 463 states have (on average 1.2699784017278617) internal successors, (588), 477 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 22:13:07,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 588 transitions. [2021-11-03 22:13:07,563 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 588 transitions. Word has length 27 [2021-11-03 22:13:07,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 22:13:07,565 INFO L470 AbstractCegarLoop]: Abstraction has 478 states and 588 transitions. [2021-11-03 22:13:07,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 22:13:07,565 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 588 transitions. [2021-11-03 22:13:07,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-03 22:13:07,566 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 22:13:07,566 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 22:13:07,603 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 22:13:07,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-03 22:13:07,767 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 22:13:07,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 22:13:07,768 INFO L85 PathProgramCache]: Analyzing trace with hash 413845756, now seen corresponding path program 1 times [2021-11-03 22:13:07,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-03 22:13:07,770 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [331253562] [2021-11-03 22:13:07,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 22:13:07,771 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 22:13:07,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-03 22:13:07,772 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 22:13:07,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 22:13:09,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 22:13:09,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 1351 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 22:13:09,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 22:13:09,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 22:13:09,938 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 22:13:10,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 22:13:10,102 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-03 22:13:10,102 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [331253562] [2021-11-03 22:13:10,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [331253562] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 22:13:10,102 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 22:13:10,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 22:13:10,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961286728] [2021-11-03 22:13:10,102 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-03 22:13:10,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 22:13:10,103 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-03 22:13:10,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 22:13:10,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 22:13:10,103 INFO L87 Difference]: Start difference. First operand 478 states and 588 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 22:13:12,312 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 22:13:19,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 22:13:19,169 INFO L93 Difference]: Finished difference Result 928 states and 1141 transitions. [2021-11-03 22:13:19,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 22:13:19,172 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-11-03 22:13:19,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 22:13:19,174 INFO L225 Difference]: With dead ends: 928 [2021-11-03 22:13:19,174 INFO L226 Difference]: Without dead ends: 478 [2021-11-03 22:13:19,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 54.21ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 22:13:19,175 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 633 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 1108 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8170.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.27ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1108 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8944.46ms IncrementalHoareTripleChecker+Time [2021-11-03 22:13:19,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [633 Valid, 0 Invalid, 1111 Unknown, 0 Unchecked, 11.27ms Time], IncrementalHoareTripleChecker [2 Valid, 1108 Invalid, 1 Unknown, 0 Unchecked, 8944.46ms Time] [2021-11-03 22:13:19,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2021-11-03 22:13:19,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 478. [2021-11-03 22:13:19,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 463 states have (on average 1.2656587473002159) internal successors, (586), 477 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 22:13:19,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 586 transitions. [2021-11-03 22:13:19,185 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 586 transitions. Word has length 30 [2021-11-03 22:13:19,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 22:13:19,185 INFO L470 AbstractCegarLoop]: Abstraction has 478 states and 586 transitions. [2021-11-03 22:13:19,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 22:13:19,186 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 586 transitions. [2021-11-03 22:13:19,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-03 22:13:19,186 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 22:13:19,187 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 22:13:19,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 22:13:19,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-03 22:13:19,391 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 22:13:19,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 22:13:19,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1070491360, now seen corresponding path program 1 times [2021-11-03 22:13:19,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-03 22:13:19,394 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [823877829] [2021-11-03 22:13:19,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 22:13:19,394 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 22:13:19,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-03 22:13:19,396 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 22:13:19,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 22:13:21,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 22:13:21,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 1404 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 22:13:21,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 22:13:21,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 22:13:21,870 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 22:13:22,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 22:13:22,116 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-03 22:13:22,116 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [823877829] [2021-11-03 22:13:22,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [823877829] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 22:13:22,116 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 22:13:22,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 22:13:22,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739357121] [2021-11-03 22:13:22,117 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-03 22:13:22,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 22:13:22,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-03 22:13:22,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 22:13:22,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 22:13:22,118 INFO L87 Difference]: Start difference. First operand 478 states and 586 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 22:13:24,312 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 22:13:32,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 22:13:32,955 INFO L93 Difference]: Finished difference Result 942 states and 1149 transitions. [2021-11-03 22:13:32,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 22:13:32,955 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2021-11-03 22:13:32,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 22:13:32,957 INFO L225 Difference]: With dead ends: 942 [2021-11-03 22:13:32,957 INFO L226 Difference]: Without dead ends: 512 [2021-11-03 22:13:32,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 145.34ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 22:13:32,959 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 980 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 1409 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9702.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 980 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.66ms SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1409 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10644.20ms IncrementalHoareTripleChecker+Time [2021-11-03 22:13:32,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [980 Valid, 0 Invalid, 1430 Unknown, 0 Unchecked, 13.66ms Time], IncrementalHoareTripleChecker [20 Valid, 1409 Invalid, 1 Unknown, 0 Unchecked, 10644.20ms Time] [2021-11-03 22:13:32,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2021-11-03 22:13:32,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 478. [2021-11-03 22:13:32,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 463 states have (on average 1.2570194384449245) internal successors, (582), 477 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 22:13:32,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 582 transitions. [2021-11-03 22:13:32,972 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 582 transitions. Word has length 38 [2021-11-03 22:13:32,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 22:13:32,972 INFO L470 AbstractCegarLoop]: Abstraction has 478 states and 582 transitions. [2021-11-03 22:13:32,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 22:13:32,973 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 582 transitions. [2021-11-03 22:13:32,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-03 22:13:32,973 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 22:13:32,974 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 22:13:33,016 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-03 22:13:33,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-03 22:13:33,181 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 22:13:33,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 22:13:33,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1314769366, now seen corresponding path program 1 times [2021-11-03 22:13:33,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-03 22:13:33,185 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [363858042] [2021-11-03 22:13:33,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 22:13:33,185 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 22:13:33,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-03 22:13:33,186 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 22:13:33,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 22:13:35,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 22:13:35,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 1507 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 22:13:35,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 22:13:35,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 22:13:35,939 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 22:13:36,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 22:13:36,016 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-03 22:13:36,016 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [363858042] [2021-11-03 22:13:36,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [363858042] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 22:13:36,016 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 22:13:36,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 22:13:36,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097341036] [2021-11-03 22:13:36,017 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-03 22:13:36,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 22:13:36,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-03 22:13:36,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 22:13:36,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 22:13:36,018 INFO L87 Difference]: Start difference. First operand 478 states and 582 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 22:13:38,229 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 22:13:48,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 22:13:48,365 INFO L93 Difference]: Finished difference Result 1024 states and 1264 transitions. [2021-11-03 22:13:48,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 22:13:48,366 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-11-03 22:13:48,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 22:13:48,368 INFO L225 Difference]: With dead ends: 1024 [2021-11-03 22:13:48,368 INFO L226 Difference]: Without dead ends: 573 [2021-11-03 22:13:48,369 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 53.08ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 22:13:48,369 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 136 mSDsluCounter, 896 mSDsCounter, 0 mSdLazyCounter, 1832 mSolverCounterSat, 73 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11229.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.61ms SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1832 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12221.85ms IncrementalHoareTripleChecker+Time [2021-11-03 22:13:48,370 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 0 Invalid, 1906 Unknown, 0 Unchecked, 15.61ms Time], IncrementalHoareTripleChecker [73 Valid, 1832 Invalid, 1 Unknown, 0 Unchecked, 12221.85ms Time] [2021-11-03 22:13:48,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2021-11-03 22:13:48,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 516. [2021-11-03 22:13:48,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 501 states have (on average 1.2375249500998005) internal successors, (620), 515 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 22:13:48,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 620 transitions. [2021-11-03 22:13:48,381 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 620 transitions. Word has length 54 [2021-11-03 22:13:48,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 22:13:48,381 INFO L470 AbstractCegarLoop]: Abstraction has 516 states and 620 transitions. [2021-11-03 22:13:48,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 22:13:48,381 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 620 transitions. [2021-11-03 22:13:48,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-03 22:13:48,386 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 22:13:48,388 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 22:13:48,432 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-03 22:13:48,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-03 22:13:48,596 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 22:13:48,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 22:13:48,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1205190568, now seen corresponding path program 1 times [2021-11-03 22:13:48,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-03 22:13:48,599 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1672447111] [2021-11-03 22:13:48,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 22:13:48,599 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 22:13:48,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-03 22:13:48,600 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 22:13:48,601 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 22:17:32,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 22:17:33,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 1510 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-03 22:17:33,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 22:17:33,961 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 [2021-11-03 22:17:34,270 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-03 22:17:34,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 21 [2021-11-03 22:17:34,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2021-11-03 22:17:34,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 22:17:34,671 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 37 treesize of output 30 [2021-11-03 22:17:34,999 INFO L354 Elim1Store]: treesize reduction 20, result has 39.4 percent of original size [2021-11-03 22:17:34,999 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 3 case distinctions, treesize of input 42 treesize of output 44 [2021-11-03 22:17:35,176 INFO L354 Elim1Store]: treesize reduction 91, result has 7.1 percent of original size [2021-11-03 22:17:35,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 20 [2021-11-03 22:17:35,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 22:17:35,471 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 22:17:37,715 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ BitVec 64)) (v_DerPreprocessor_2 (_ BitVec 64)) (v_DerPreprocessor_1 (_ BitVec 64))) (not (= (_ bv0 64) (select (select (store |c_#memory_$Pointer$.base| c_ULTIMATE.start_aws_mul_u64_checked_~r.base (store (store (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_aws_mul_u64_checked_~r.base) ULTIMATE.start_aws_mul_u64_checked_~r.offset v_DerPreprocessor_1) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv4 64)) v_DerPreprocessor_2)) c_ULTIMATE.start_aws_array_list_is_valid_~list.base) (bvadd c_ULTIMATE.start_aws_array_list_is_valid_~list.offset (_ bv32 64)))))) is different from false [2021-11-03 22:17:39,780 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_121| (_ BitVec 64)) (ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ BitVec 64)) (v_DerPreprocessor_2 (_ BitVec 64)) (v_DerPreprocessor_1 (_ BitVec 64))) (or (not (= (_ bv0 64) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_121| (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_121|) ULTIMATE.start_aws_mul_u64_checked_~r.offset v_DerPreprocessor_1) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv4 64)) v_DerPreprocessor_2)) c_ULTIMATE.start_aws_array_list_is_valid_~list.base) (bvadd c_ULTIMATE.start_aws_array_list_is_valid_~list.offset (_ bv32 64))))) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_121|))))))) is different from false [2021-11-03 22:17:41,836 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_121| (_ BitVec 64)) (ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ BitVec 64)) (v_DerPreprocessor_2 (_ BitVec 64)) (v_DerPreprocessor_1 (_ BitVec 64))) (or (not (= (_ bv0 64) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_121| (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_121|) ULTIMATE.start_aws_mul_u64_checked_~r.offset v_DerPreprocessor_1) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv4 64)) v_DerPreprocessor_2)) |c_ULTIMATE.start_aws_array_list_swap_harness_~#list~0.base|) (bvadd |c_ULTIMATE.start_aws_array_list_swap_harness_~#list~0.offset| (_ bv32 64))))) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_121|))))))) is different from false [2021-11-03 22:17:43,911 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_121| (_ BitVec 64)) (ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ BitVec 64)) (|ULTIMATE.start_ensure_array_list_has_allocated_data_member_#t~ite589.base| (_ BitVec 64)) (v_DerPreprocessor_2 (_ BitVec 64)) (v_DerPreprocessor_1 (_ BitVec 64))) (or (not (= (_ bv0 64) (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| c_ULTIMATE.start_ensure_array_list_has_allocated_data_member_~list.base (store (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_ensure_array_list_has_allocated_data_member_~list.base) c_ULTIMATE.start_ensure_array_list_has_allocated_data_member_~list.offset |ULTIMATE.start_ensure_array_list_has_allocated_data_member_#t~ite589.base|)))) (store .cse0 |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_121| (store (store (select .cse0 |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_121|) ULTIMATE.start_aws_mul_u64_checked_~r.offset v_DerPreprocessor_1) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv4 64)) v_DerPreprocessor_2))) |c_ULTIMATE.start_aws_array_list_swap_harness_~#list~0.base|) (bvadd |c_ULTIMATE.start_aws_array_list_swap_harness_~#list~0.offset| (_ bv32 64))))) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_121|))))))) is different from false [2021-11-03 22:17:44,054 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 3747 treesize of output 3699 [2021-11-03 22:17:46,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 22:17:46,280 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-03 22:17:46,280 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1672447111] [2021-11-03 22:17:46,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1672447111] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 22:17:46,280 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 22:17:46,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 20 [2021-11-03 22:17:46,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435103633] [2021-11-03 22:17:46,281 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-03 22:17:46,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-03 22:17:46,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-03 22:17:46,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-03 22:17:46,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=191, Unknown=4, NotChecked=124, Total=380 [2021-11-03 22:17:46,282 INFO L87 Difference]: Start difference. First operand 516 states and 620 transitions. Second operand has 20 states, 20 states have (on average 3.65) internal successors, (73), 20 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 22:17:48,473 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 22:18:17,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 22:18:17,940 INFO L93 Difference]: Finished difference Result 1090 states and 1317 transitions. [2021-11-03 22:18:17,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-03 22:18:17,941 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.65) internal successors, (73), 20 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-11-03 22:18:17,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 22:18:17,943 INFO L225 Difference]: With dead ends: 1090 [2021-11-03 22:18:17,943 INFO L226 Difference]: Without dead ends: 603 [2021-11-03 22:18:17,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 88 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 4 IntricatePredicates, 1 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 24053.57ms TimeCoverageRelationStatistics Valid=86, Invalid=301, Unknown=9, NotChecked=156, Total=552 [2021-11-03 22:18:17,945 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 206 mSDsluCounter, 5076 mSDsCounter, 0 mSdLazyCounter, 3190 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15319.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 7995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 37.05ms SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3190 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 4741 IncrementalHoareTripleChecker+Unchecked, 16736.12ms IncrementalHoareTripleChecker+Time [2021-11-03 22:18:17,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 0 Invalid, 7995 Unknown, 0 Unchecked, 37.05ms Time], IncrementalHoareTripleChecker [63 Valid, 3190 Invalid, 1 Unknown, 4741 Unchecked, 16736.12ms Time] [2021-11-03 22:18:17,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2021-11-03 22:18:17,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 532. [2021-11-03 22:18:17,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 517 states have (on average 1.2359767891682785) internal successors, (639), 531 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 22:18:17,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 639 transitions. [2021-11-03 22:18:17,956 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 639 transitions. Word has length 54 [2021-11-03 22:18:17,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 22:18:17,956 INFO L470 AbstractCegarLoop]: Abstraction has 532 states and 639 transitions. [2021-11-03 22:18:17,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.65) internal successors, (73), 20 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 22:18:17,956 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 639 transitions. [2021-11-03 22:18:17,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-03 22:18:17,957 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 22:18:17,958 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 22:18:18,164 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forcibly destroying the process [2021-11-03 22:18:18,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-03 22:18:18,164 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-03 22:18:18,164 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 22:18:18,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 22:18:18,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1220709286, now seen corresponding path program 1 times [2021-11-03 22:18:18,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-03 22:18:18,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [265815470] [2021-11-03 22:18:18,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 22:18:18,169 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 22:18:18,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-03 22:18:18,170 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 22:18:18,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process Killed by 15