./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_string_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 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_byte_cursor_from_string_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 c3b06783378816ab028e38f9f4609990f4d1028238bbcb0e88638ebb644bb54d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-16 20:54:28,459 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-16 20:54:28,461 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-16 20:54:28,524 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-16 20:54:28,524 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-16 20:54:28,528 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-16 20:54:28,529 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-16 20:54:28,533 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-16 20:54:28,535 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-16 20:54:28,537 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-16 20:54:28,538 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-16 20:54:28,539 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-16 20:54:28,539 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-16 20:54:28,543 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-16 20:54:28,545 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-16 20:54:28,546 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-16 20:54:28,550 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-16 20:54:28,551 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-16 20:54:28,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-16 20:54:28,554 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-16 20:54:28,556 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-16 20:54:28,557 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-16 20:54:28,557 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-16 20:54:28,558 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-16 20:54:28,560 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-16 20:54:28,561 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-16 20:54:28,561 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-16 20:54:28,561 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-16 20:54:28,562 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-16 20:54:28,562 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-16 20:54:28,563 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-16 20:54:28,563 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-16 20:54:28,563 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-16 20:54:28,564 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-16 20:54:28,565 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-16 20:54:28,565 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-16 20:54:28,566 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-16 20:54:28,566 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-16 20:54:28,566 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-16 20:54:28,567 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-16 20:54:28,567 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-16 20:54:28,568 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-16 20:54:28,586 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-16 20:54:28,586 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-16 20:54:28,587 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-16 20:54:28,587 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-16 20:54:28,588 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-16 20:54:28,588 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-16 20:54:28,589 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-16 20:54:28,589 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-16 20:54:28,589 INFO L138 SettingsManager]: * Use SBE=true [2021-11-16 20:54:28,589 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-16 20:54:28,590 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-16 20:54:28,590 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-16 20:54:28,590 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-16 20:54:28,590 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-16 20:54:28,590 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-16 20:54:28,591 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-16 20:54:28,591 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-16 20:54:28,591 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-16 20:54:28,591 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-16 20:54:28,591 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-16 20:54:28,591 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-16 20:54:28,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-16 20:54:28,592 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-16 20:54:28,592 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-16 20:54:28,592 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-16 20:54:28,592 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-16 20:54:28,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-16 20:54:28,593 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-16 20:54:28,593 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-16 20:54:28,593 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-16 20:54:28,593 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-16 20:54:28,593 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3b06783378816ab028e38f9f4609990f4d1028238bbcb0e88638ebb644bb54d [2021-11-16 20:54:28,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-16 20:54:28,801 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-16 20:54:28,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-16 20:54:28,804 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-16 20:54:28,804 INFO L275 PluginConnector]: CDTParser initialized [2021-11-16 20:54:28,805 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_string_harness.i [2021-11-16 20:54:28,875 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41d50d8e4/fade77d190614e1cb46004bce58988cd/FLAG092a80499 [2021-11-16 20:54:29,475 INFO L306 CDTParser]: Found 1 translation units. [2021-11-16 20:54:29,476 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_string_harness.i [2021-11-16 20:54:29,506 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41d50d8e4/fade77d190614e1cb46004bce58988cd/FLAG092a80499 [2021-11-16 20:54:29,882 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41d50d8e4/fade77d190614e1cb46004bce58988cd [2021-11-16 20:54:29,883 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-16 20:54:29,884 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-16 20:54:29,885 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-16 20:54:29,885 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-16 20:54:29,888 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-16 20:54:29,889 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:54:29" (1/1) ... [2021-11-16 20:54:29,890 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4da7018c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:54:29, skipping insertion in model container [2021-11-16 20:54:29,890 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:54:29" (1/1) ... [2021-11-16 20:54:29,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-16 20:54:29,961 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-16 20:54:30,152 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_string_harness.i[4501,4514] [2021-11-16 20:54:30,157 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_string_harness.i[4561,4574] [2021-11-16 20:54:30,175 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-16 20:54:30,180 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-16 20:54:30,707 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:54:30,708 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:54:30,712 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:54:30,713 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:54:30,713 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:54:30,720 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:54:30,721 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:54:30,722 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:54:30,722 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:54:30,943 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-16 20:54:30,944 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-16 20:54:30,945 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-16 20:54:30,946 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-16 20:54:30,947 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-16 20:54:30,948 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-16 20:54:30,948 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-16 20:54:30,949 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-16 20:54:30,949 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-16 20:54:30,950 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-16 20:54:31,041 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-16 20:54:31,159 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:54:31,159 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:54:31,262 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-16 20:54:31,303 INFO L203 MainTranslator]: Completed pre-run [2021-11-16 20:54:31,325 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_string_harness.i[4501,4514] [2021-11-16 20:54:31,326 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_string_harness.i[4561,4574] [2021-11-16 20:54:31,328 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-16 20:54:31,329 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-16 20:54:31,348 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:54:31,348 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:54:31,348 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:54:31,349 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:54:31,349 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:54:31,352 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:54:31,353 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:54:31,354 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:54:31,354 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:54:31,377 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-16 20:54:31,378 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-16 20:54:31,378 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-16 20:54:31,378 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-16 20:54:31,379 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-16 20:54:31,379 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-16 20:54:31,379 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-16 20:54:31,380 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-16 20:54:31,380 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-16 20:54:31,380 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-16 20:54:31,396 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-16 20:54:31,454 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:54:31,454 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:54:31,523 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-16 20:54:31,652 INFO L208 MainTranslator]: Completed translation [2021-11-16 20:54:31,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:54:31 WrapperNode [2021-11-16 20:54:31,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-16 20:54:31,654 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-16 20:54:31,654 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-16 20:54:31,654 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-16 20:54:31,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:54:31" (1/1) ... [2021-11-16 20:54:31,741 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:54:31" (1/1) ... [2021-11-16 20:54:31,814 INFO L137 Inliner]: procedures = 695, calls = 2787, calls flagged for inlining = 59, calls inlined = 7, statements flattened = 828 [2021-11-16 20:54:31,814 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-16 20:54:31,815 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-16 20:54:31,815 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-16 20:54:31,815 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-16 20:54:31,820 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:54:31" (1/1) ... [2021-11-16 20:54:31,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:54:31" (1/1) ... [2021-11-16 20:54:31,828 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:54:31" (1/1) ... [2021-11-16 20:54:31,830 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:54:31" (1/1) ... [2021-11-16 20:54:31,861 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:54:31" (1/1) ... [2021-11-16 20:54:31,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:54:31" (1/1) ... [2021-11-16 20:54:31,882 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:54:31" (1/1) ... [2021-11-16 20:54:31,892 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-16 20:54:31,895 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-16 20:54:31,896 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-16 20:54:31,896 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-16 20:54:31,897 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:54:31" (1/1) ... [2021-11-16 20:54:31,902 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-16 20:54:31,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-16 20:54:31,918 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) [2021-11-16 20:54:31,939 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 [2021-11-16 20:54:31,946 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2021-11-16 20:54:31,947 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2021-11-16 20:54:31,947 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2021-11-16 20:54:31,947 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2021-11-16 20:54:31,947 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2021-11-16 20:54:31,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2021-11-16 20:54:31,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-16 20:54:31,948 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-16 20:54:31,948 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-16 20:54:31,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-16 20:54:31,949 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-16 20:54:31,949 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-16 20:54:31,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-16 20:54:31,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-16 20:54:31,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-16 20:54:31,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-16 20:54:31,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-16 20:54:31,950 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-16 20:54:31,950 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-16 20:54:31,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-16 20:54:31,950 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2021-11-16 20:54:31,951 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2021-11-16 20:54:31,951 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-16 20:54:31,952 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-16 20:54:31,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-16 20:54:31,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-16 20:54:31,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-16 20:54:31,952 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-16 20:54:31,952 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-16 20:54:31,952 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-16 20:54:31,952 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-16 20:54:31,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-16 20:54:31,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-16 20:54:32,190 INFO L236 CfgBuilder]: Building ICFG [2021-11-16 20:54:32,192 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-16 20:54:32,933 INFO L277 CfgBuilder]: Performing block encoding [2021-11-16 20:54:32,940 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-16 20:54:32,940 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-16 20:54:32,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:54:32 BoogieIcfgContainer [2021-11-16 20:54:32,942 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-16 20:54:32,943 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-16 20:54:32,943 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-16 20:54:32,946 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-16 20:54:32,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:54:29" (1/3) ... [2021-11-16 20:54:32,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26c32935 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:54:32, skipping insertion in model container [2021-11-16 20:54:32,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:54:31" (2/3) ... [2021-11-16 20:54:32,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26c32935 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:54:32, skipping insertion in model container [2021-11-16 20:54:32,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:54:32" (3/3) ... [2021-11-16 20:54:32,948 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_from_string_harness.i [2021-11-16 20:54:32,952 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-16 20:54:32,952 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-16 20:54:32,993 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-16 20:54:32,998 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 [2021-11-16 20:54:32,999 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-16 20:54:33,014 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 67 states have (on average 1.1791044776119404) internal successors, (79), 68 states have internal predecessors, (79), 25 states have call successors, (25), 10 states have call predecessors, (25), 10 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-16 20:54:33,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-16 20:54:33,021 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 20:54:33,021 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 20:54:33,022 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 20:54:33,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 20:54:33,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1122645662, now seen corresponding path program 1 times [2021-11-16 20:54:33,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 20:54:33,035 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267620299] [2021-11-16 20:54:33,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:54:33,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 20:54:33,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:33,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-16 20:54:33,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:33,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:54:33,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:33,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-16 20:54:33,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:33,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-16 20:54:33,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:33,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:54:33,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:33,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-16 20:54:33,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:33,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-16 20:54:33,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:33,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-16 20:54:33,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:33,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-16 20:54:33,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:33,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:54:33,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:33,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-16 20:54:33,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:33,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-16 20:54:33,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:33,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-11-16 20:54:33,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:33,548 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-16 20:54:33,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 20:54:33,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267620299] [2021-11-16 20:54:33,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267620299] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 20:54:33,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-16 20:54:33,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-16 20:54:33,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289351775] [2021-11-16 20:54:33,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 20:54:33,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-16 20:54:33,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 20:54:33,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-16 20:54:33,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-16 20:54:33,570 INFO L87 Difference]: Start difference. First operand has 104 states, 67 states have (on average 1.1791044776119404) internal successors, (79), 68 states have internal predecessors, (79), 25 states have call successors, (25), 10 states have call predecessors, (25), 10 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-16 20:54:35,609 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-16 20:54:35,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 20:54:35,846 INFO L93 Difference]: Finished difference Result 201 states and 264 transitions. [2021-11-16 20:54:35,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-16 20:54:35,848 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 85 [2021-11-16 20:54:35,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 20:54:35,854 INFO L225 Difference]: With dead ends: 201 [2021-11-16 20:54:35,854 INFO L226 Difference]: Without dead ends: 98 [2021-11-16 20:54:35,856 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-16 20:54:35,858 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 92 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-16 20:54:35,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 140 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 37 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-11-16 20:54:35,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2021-11-16 20:54:35,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2021-11-16 20:54:35,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 62 states have (on average 1.1451612903225807) internal successors, (71), 63 states have internal predecessors, (71), 25 states have call successors, (25), 10 states have call predecessors, (25), 10 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2021-11-16 20:54:35,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 120 transitions. [2021-11-16 20:54:35,888 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 120 transitions. Word has length 85 [2021-11-16 20:54:35,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 20:54:35,889 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 120 transitions. [2021-11-16 20:54:35,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-16 20:54:35,889 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 120 transitions. [2021-11-16 20:54:35,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-16 20:54:35,891 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 20:54:35,891 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 20:54:35,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-16 20:54:35,892 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 20:54:35,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 20:54:35,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1334345696, now seen corresponding path program 1 times [2021-11-16 20:54:35,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 20:54:35,893 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758683886] [2021-11-16 20:54:35,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:54:35,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 20:54:35,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:36,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-16 20:54:36,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:36,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:54:36,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:36,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-16 20:54:36,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:36,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-16 20:54:36,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:36,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:54:36,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:36,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-16 20:54:36,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:36,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-16 20:54:36,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:36,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-16 20:54:36,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:36,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-16 20:54:36,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:36,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:54:36,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:36,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-16 20:54:36,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:36,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-16 20:54:36,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:36,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-11-16 20:54:36,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:36,247 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-16 20:54:36,248 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 20:54:36,248 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758683886] [2021-11-16 20:54:36,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758683886] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 20:54:36,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-16 20:54:36,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-16 20:54:36,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869453859] [2021-11-16 20:54:36,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 20:54:36,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-16 20:54:36,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 20:54:36,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-16 20:54:36,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-16 20:54:36,250 INFO L87 Difference]: Start difference. First operand 98 states and 120 transitions. Second operand has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-16 20:54:38,279 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-16 20:54:38,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 20:54:38,559 INFO L93 Difference]: Finished difference Result 155 states and 190 transitions. [2021-11-16 20:54:38,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-16 20:54:38,560 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 85 [2021-11-16 20:54:38,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 20:54:38,564 INFO L225 Difference]: With dead ends: 155 [2021-11-16 20:54:38,564 INFO L226 Difference]: Without dead ends: 101 [2021-11-16 20:54:38,567 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-11-16 20:54:38,570 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 111 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-16 20:54:38,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 324 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 181 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-16 20:54:38,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-11-16 20:54:38,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2021-11-16 20:54:38,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 64 states have (on average 1.140625) internal successors, (73), 66 states have internal predecessors, (73), 25 states have call successors, (25), 10 states have call predecessors, (25), 11 states have return successors, (25), 24 states have call predecessors, (25), 24 states have call successors, (25) [2021-11-16 20:54:38,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 123 transitions. [2021-11-16 20:54:38,585 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 123 transitions. Word has length 85 [2021-11-16 20:54:38,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 20:54:38,587 INFO L470 AbstractCegarLoop]: Abstraction has 101 states and 123 transitions. [2021-11-16 20:54:38,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-16 20:54:38,588 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 123 transitions. [2021-11-16 20:54:38,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-16 20:54:38,595 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 20:54:38,596 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 20:54:38,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-16 20:54:38,596 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 20:54:38,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 20:54:38,596 INFO L85 PathProgramCache]: Analyzing trace with hash 50703397, now seen corresponding path program 1 times [2021-11-16 20:54:38,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 20:54:38,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241052104] [2021-11-16 20:54:38,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:54:38,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 20:54:38,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:38,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-16 20:54:38,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:38,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:54:38,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:38,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-16 20:54:38,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:38,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-16 20:54:38,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:38,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:54:38,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:38,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-16 20:54:38,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:38,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-16 20:54:38,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:38,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-16 20:54:38,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:38,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-16 20:54:38,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:38,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:54:38,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:38,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-16 20:54:38,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:38,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-16 20:54:38,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:38,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-11-16 20:54:38,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:38,931 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-16 20:54:38,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 20:54:38,932 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241052104] [2021-11-16 20:54:38,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241052104] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 20:54:38,932 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-16 20:54:38,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-16 20:54:38,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418832741] [2021-11-16 20:54:38,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 20:54:38,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-16 20:54:38,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 20:54:38,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-16 20:54:38,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-11-16 20:54:38,934 INFO L87 Difference]: Start difference. First operand 101 states and 123 transitions. Second operand has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2021-11-16 20:54:39,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 20:54:39,524 INFO L93 Difference]: Finished difference Result 113 states and 136 transitions. [2021-11-16 20:54:39,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-16 20:54:39,525 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) Word has length 87 [2021-11-16 20:54:39,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 20:54:39,526 INFO L225 Difference]: With dead ends: 113 [2021-11-16 20:54:39,526 INFO L226 Difference]: Without dead ends: 111 [2021-11-16 20:54:39,527 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2021-11-16 20:54:39,527 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 114 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-16 20:54:39,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 550 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-16 20:54:39,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-11-16 20:54:39,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 110. [2021-11-16 20:54:39,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 70 states have (on average 1.1285714285714286) internal successors, (79), 73 states have internal predecessors, (79), 26 states have call successors, (26), 11 states have call predecessors, (26), 13 states have return successors, (28), 25 states have call predecessors, (28), 25 states have call successors, (28) [2021-11-16 20:54:39,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 133 transitions. [2021-11-16 20:54:39,535 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 133 transitions. Word has length 87 [2021-11-16 20:54:39,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 20:54:39,536 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 133 transitions. [2021-11-16 20:54:39,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2021-11-16 20:54:39,536 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 133 transitions. [2021-11-16 20:54:39,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-16 20:54:39,537 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 20:54:39,537 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 20:54:39,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-16 20:54:39,538 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 20:54:39,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 20:54:39,538 INFO L85 PathProgramCache]: Analyzing trace with hash 976473645, now seen corresponding path program 1 times [2021-11-16 20:54:39,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 20:54:39,538 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323534151] [2021-11-16 20:54:39,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:54:39,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 20:54:39,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:39,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-16 20:54:39,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:39,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:54:39,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:39,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-16 20:54:39,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:39,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-16 20:54:39,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:39,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:54:39,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:39,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-16 20:54:39,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:39,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-16 20:54:39,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:39,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-16 20:54:39,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:39,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-16 20:54:39,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:39,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:54:39,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:39,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-16 20:54:39,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:39,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-16 20:54:39,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:39,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-11-16 20:54:39,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:39,977 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-16 20:54:39,978 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 20:54:39,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323534151] [2021-11-16 20:54:39,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323534151] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-16 20:54:39,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557927839] [2021-11-16 20:54:39,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:54:39,979 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 20:54:39,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-16 20:54:39,980 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) [2021-11-16 20:54:40,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-16 20:54:40,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:40,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 2571 conjuncts, 45 conjunts are in the unsatisfiable core [2021-11-16 20:54:40,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-16 20:54:40,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:54:40,721 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 14 [2021-11-16 20:54:41,047 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-16 20:54:41,048 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-16 20:54:41,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557927839] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 20:54:41,048 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-16 20:54:41,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [13] total 30 [2021-11-16 20:54:41,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446285113] [2021-11-16 20:54:41,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 20:54:41,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-16 20:54:41,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 20:54:41,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-16 20:54:41,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=801, Unknown=0, NotChecked=0, Total=870 [2021-11-16 20:54:41,050 INFO L87 Difference]: Start difference. First operand 110 states and 133 transitions. Second operand has 19 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 15 states have internal predecessors, (46), 7 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (13), 9 states have call predecessors, (13), 6 states have call successors, (13) [2021-11-16 20:54:41,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 20:54:41,200 INFO L93 Difference]: Finished difference Result 196 states and 234 transitions. [2021-11-16 20:54:41,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-16 20:54:41,200 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 15 states have internal predecessors, (46), 7 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (13), 9 states have call predecessors, (13), 6 states have call successors, (13) Word has length 91 [2021-11-16 20:54:41,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 20:54:41,201 INFO L225 Difference]: With dead ends: 196 [2021-11-16 20:54:41,202 INFO L226 Difference]: Without dead ends: 127 [2021-11-16 20:54:41,202 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=102, Invalid=1158, Unknown=0, NotChecked=0, Total=1260 [2021-11-16 20:54:41,203 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 32 mSDsluCounter, 1501 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 1612 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 72 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-16 20:54:41,203 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 1612 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 90 Invalid, 0 Unknown, 72 Unchecked, 0.1s Time] [2021-11-16 20:54:41,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-11-16 20:54:41,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 124. [2021-11-16 20:54:41,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 83 states have (on average 1.144578313253012) internal successors, (95), 86 states have internal predecessors, (95), 26 states have call successors, (26), 12 states have call predecessors, (26), 14 states have return successors, (28), 25 states have call predecessors, (28), 25 states have call successors, (28) [2021-11-16 20:54:41,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 149 transitions. [2021-11-16 20:54:41,219 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 149 transitions. Word has length 91 [2021-11-16 20:54:41,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 20:54:41,219 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 149 transitions. [2021-11-16 20:54:41,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 15 states have internal predecessors, (46), 7 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (13), 9 states have call predecessors, (13), 6 states have call successors, (13) [2021-11-16 20:54:41,219 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 149 transitions. [2021-11-16 20:54:41,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-16 20:54:41,220 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 20:54:41,220 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 20:54:41,250 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-16 20:54:41,431 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 [2021-11-16 20:54:41,432 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 20:54:41,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 20:54:41,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1234639083, now seen corresponding path program 1 times [2021-11-16 20:54:41,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 20:54:41,432 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218655726] [2021-11-16 20:54:41,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:54:41,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 20:54:41,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:41,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-16 20:54:41,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:41,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:54:41,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:41,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-16 20:54:41,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:41,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-16 20:54:41,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:41,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:54:41,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:41,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-16 20:54:41,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:41,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-16 20:54:41,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:41,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-16 20:54:41,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:41,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-16 20:54:41,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:41,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:54:41,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:41,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-16 20:54:41,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:41,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-16 20:54:41,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:41,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-11-16 20:54:41,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:41,882 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-16 20:54:41,882 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 20:54:41,882 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218655726] [2021-11-16 20:54:41,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218655726] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-16 20:54:41,882 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457393883] [2021-11-16 20:54:41,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:54:41,883 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 20:54:41,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-16 20:54:41,884 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) [2021-11-16 20:54:41,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-16 20:54:42,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:42,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 2566 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-16 20:54:42,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-16 20:54:42,444 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-16 20:54:42,444 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-16 20:54:42,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [457393883] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 20:54:42,445 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-16 20:54:42,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [13] total 15 [2021-11-16 20:54:42,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084079711] [2021-11-16 20:54:42,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 20:54:42,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-16 20:54:42,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 20:54:42,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-16 20:54:42,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2021-11-16 20:54:42,447 INFO L87 Difference]: Start difference. First operand 124 states and 149 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2021-11-16 20:54:42,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 20:54:42,766 INFO L93 Difference]: Finished difference Result 183 states and 222 transitions. [2021-11-16 20:54:42,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-16 20:54:42,767 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) Word has length 91 [2021-11-16 20:54:42,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 20:54:42,768 INFO L225 Difference]: With dead ends: 183 [2021-11-16 20:54:42,768 INFO L226 Difference]: Without dead ends: 118 [2021-11-16 20:54:42,768 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-11-16 20:54:42,769 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 3 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-16 20:54:42,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 314 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 19 Unchecked, 0.3s Time] [2021-11-16 20:54:42,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-11-16 20:54:42,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 117. [2021-11-16 20:54:42,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 77 states have (on average 1.1168831168831168) internal successors, (86), 79 states have internal predecessors, (86), 26 states have call successors, (26), 12 states have call predecessors, (26), 13 states have return successors, (27), 25 states have call predecessors, (27), 25 states have call successors, (27) [2021-11-16 20:54:42,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 139 transitions. [2021-11-16 20:54:42,774 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 139 transitions. Word has length 91 [2021-11-16 20:54:42,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 20:54:42,775 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 139 transitions. [2021-11-16 20:54:42,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2021-11-16 20:54:42,775 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 139 transitions. [2021-11-16 20:54:42,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-16 20:54:42,776 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 20:54:42,776 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 20:54:42,797 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-16 20:54:42,987 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 [2021-11-16 20:54:42,988 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 20:54:42,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 20:54:42,988 INFO L85 PathProgramCache]: Analyzing trace with hash -2058076652, now seen corresponding path program 1 times [2021-11-16 20:54:42,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 20:54:42,988 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700863337] [2021-11-16 20:54:42,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:54:42,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 20:54:43,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:43,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-16 20:54:43,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:43,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:54:43,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:43,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-16 20:54:43,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:43,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-16 20:54:43,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:43,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:54:43,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:43,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-16 20:54:43,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:43,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-16 20:54:43,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:43,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-16 20:54:43,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:43,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-16 20:54:43,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:43,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:54:43,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:43,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-16 20:54:43,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:43,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-16 20:54:43,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:43,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-11-16 20:54:43,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:43,298 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-16 20:54:43,298 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 20:54:43,298 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700863337] [2021-11-16 20:54:43,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700863337] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 20:54:43,298 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-16 20:54:43,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-11-16 20:54:43,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548412873] [2021-11-16 20:54:43,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 20:54:43,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-16 20:54:43,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 20:54:43,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-16 20:54:43,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2021-11-16 20:54:43,300 INFO L87 Difference]: Start difference. First operand 117 states and 139 transitions. Second operand has 15 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 11 states have internal predecessors, (48), 2 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2021-11-16 20:54:46,416 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-16 20:54:48,486 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-16 20:54:49,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 20:54:49,287 INFO L93 Difference]: Finished difference Result 131 states and 152 transitions. [2021-11-16 20:54:49,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-16 20:54:49,287 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 11 states have internal predecessors, (48), 2 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) Word has length 93 [2021-11-16 20:54:49,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 20:54:49,288 INFO L225 Difference]: With dead ends: 131 [2021-11-16 20:54:49,288 INFO L226 Difference]: Without dead ends: 129 [2021-11-16 20:54:49,289 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=564, Unknown=0, NotChecked=0, Total=702 [2021-11-16 20:54:49,289 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 81 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 40 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 828 SdHoareTripleChecker+Invalid, 756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2021-11-16 20:54:49,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 828 Invalid, 756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 714 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2021-11-16 20:54:49,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-11-16 20:54:49,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 117. [2021-11-16 20:54:49,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 78 states have (on average 1.1153846153846154) internal successors, (87), 80 states have internal predecessors, (87), 25 states have call successors, (25), 12 states have call predecessors, (25), 13 states have return successors, (26), 24 states have call predecessors, (26), 24 states have call successors, (26) [2021-11-16 20:54:49,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 138 transitions. [2021-11-16 20:54:49,295 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 138 transitions. Word has length 93 [2021-11-16 20:54:49,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 20:54:49,295 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 138 transitions. [2021-11-16 20:54:49,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 11 states have internal predecessors, (48), 2 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2021-11-16 20:54:49,296 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 138 transitions. [2021-11-16 20:54:49,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-16 20:54:49,296 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 20:54:49,296 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 20:54:49,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-16 20:54:49,297 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 20:54:49,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 20:54:49,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1315799824, now seen corresponding path program 1 times [2021-11-16 20:54:49,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 20:54:49,297 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856905644] [2021-11-16 20:54:49,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:54:49,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 20:54:49,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:49,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-16 20:54:49,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:49,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:54:49,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:49,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-16 20:54:49,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:49,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-16 20:54:49,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:49,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:54:49,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:49,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-16 20:54:49,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:49,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-16 20:54:49,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:49,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-16 20:54:49,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:49,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-16 20:54:49,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:49,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-16 20:54:49,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:49,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-16 20:54:49,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:49,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-16 20:54:49,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:49,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-11-16 20:54:49,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:49,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-16 20:54:49,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:49,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-16 20:54:49,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:49,753 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-11-16 20:54:49,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 20:54:49,753 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856905644] [2021-11-16 20:54:49,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856905644] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-16 20:54:49,753 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838414658] [2021-11-16 20:54:49,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:54:49,753 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 20:54:49,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-16 20:54:49,754 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) [2021-11-16 20:54:49,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-16 20:54:50,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:54:50,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 2614 conjuncts, 123 conjunts are in the unsatisfiable core [2021-11-16 20:54:50,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-16 20:54:50,250 INFO L354 Elim1Store]: treesize reduction 27, result has 41.3 percent of original size [2021-11-16 20:54:50,251 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 1 case distinctions, treesize of input 32 treesize of output 38 [2021-11-16 20:54:50,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:54:50,304 INFO L354 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2021-11-16 20:54:50,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 32 [2021-11-16 20:54:55,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:54:55,130 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-16 20:54:55,136 INFO L354 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2021-11-16 20:54:55,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 151 treesize of output 113 [2021-11-16 20:54:55,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:54:55,152 INFO L354 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2021-11-16 20:54:55,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 146 treesize of output 109 [2021-11-16 20:55:00,850 INFO L354 Elim1Store]: treesize reduction 156, result has 13.8 percent of original size [2021-11-16 20:55:00,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 21 case distinctions, treesize of input 194 treesize of output 127 [2021-11-16 20:55:01,049 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 38 proven. 19 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-16 20:55:01,049 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-16 20:55:13,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1838414658] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-16 20:55:13,857 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-16 20:55:13,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 39] total 50 [2021-11-16 20:55:13,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285607721] [2021-11-16 20:55:13,858 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-16 20:55:13,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2021-11-16 20:55:13,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 20:55:13,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2021-11-16 20:55:13,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=4062, Unknown=0, NotChecked=0, Total=4290 [2021-11-16 20:55:13,860 INFO L87 Difference]: Start difference. First operand 117 states and 138 transitions. Second operand has 50 states, 43 states have (on average 2.558139534883721) internal successors, (110), 37 states have internal predecessors, (110), 15 states have call successors, (32), 9 states have call predecessors, (32), 14 states have return successors, (30), 17 states have call predecessors, (30), 14 states have call successors, (30) [2021-11-16 20:55:15,446 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-16 20:55:18,836 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-16 20:55:20,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 20:55:20,294 INFO L93 Difference]: Finished difference Result 124 states and 143 transitions. [2021-11-16 20:55:20,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-16 20:55:20,294 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 43 states have (on average 2.558139534883721) internal successors, (110), 37 states have internal predecessors, (110), 15 states have call successors, (32), 9 states have call predecessors, (32), 14 states have return successors, (30), 17 states have call predecessors, (30), 14 states have call successors, (30) Word has length 103 [2021-11-16 20:55:20,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 20:55:20,295 INFO L225 Difference]: With dead ends: 124 [2021-11-16 20:55:20,295 INFO L226 Difference]: Without dead ends: 0 [2021-11-16 20:55:20,296 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 100 SyntacticMatches, 7 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1526 ImplicationChecksByTransitivity, 16.6s TimeCoverageRelationStatistics Valid=316, Invalid=5690, Unknown=0, NotChecked=0, Total=6006 [2021-11-16 20:55:20,297 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 59 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 36 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 276 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2021-11-16 20:55:20,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 347 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 374 Invalid, 1 Unknown, 276 Unchecked, 5.7s Time] [2021-11-16 20:55:20,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-16 20:55:20,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-16 20:55:20,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-16 20:55:20,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-16 20:55:20,298 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 103 [2021-11-16 20:55:20,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 20:55:20,298 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-16 20:55:20,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 43 states have (on average 2.558139534883721) internal successors, (110), 37 states have internal predecessors, (110), 15 states have call successors, (32), 9 states have call predecessors, (32), 14 states have return successors, (30), 17 states have call predecessors, (30), 14 states have call successors, (30) [2021-11-16 20:55:20,298 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-16 20:55:20,298 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-16 20:55:20,300 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-16 20:55:20,321 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-16 20:55:20,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 20:55:20,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-16 20:55:20,661 INFO L854 garLoopResultBuilder]: At program point L6815(lines 6806 6816) the Hoare annotation is: (and (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= 16 |ensure_string_is_allocated_bounded_length_~max_size#1|)) (let ((.cse2 (select |#memory_int| |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_#res#1.base|))) (let ((.cse0 (select .cse2 (+ |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_#res#1.offset| 8)))) (let ((.cse1 (* .cse0 (- 1))) (.cse3 (mod .cse0 18446744073709551616))) (or (= 0 .cse0) (and (< (div (+ 18446744073709551615 .cse1) (- 18446744073709551616)) (+ (div (+ (- 9223372036854775808) .cse0) 18446744073709551616) 1)) (= (select .cse2 (+ |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_#res#1.offset| (- 18446744073709551600) .cse3)) 0)) (and (<= (div (+ 9223372036854775807 .cse1) (- 18446744073709551616)) (div .cse0 18446744073709551616)) (= (select .cse2 (+ |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_#res#1.offset| 16 .cse3)) 0)))))) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.offset| 0) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_#res#1.base| 0)) (< |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_#res#1.base| |#StackHeapBarrier|) (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 16)) (< |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| |#StackHeapBarrier|) (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_#res#1.offset| 0)) [2021-11-16 20:55:20,661 INFO L858 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthEXIT(lines 6800 6804) no Hoare annotation was computed. [2021-11-16 20:55:20,661 INFO L854 garLoopResultBuilder]: At program point L6810(line 6810) the Hoare annotation is: (and (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= 16 |ensure_string_is_allocated_bounded_length_~max_size#1|)) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.offset| 0) (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 16)) (< |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| |#StackHeapBarrier|)) [2021-11-16 20:55:20,661 INFO L858 garLoopResultBuilder]: For program point L6807-1(line 6807) no Hoare annotation was computed. [2021-11-16 20:55:20,661 INFO L854 garLoopResultBuilder]: At program point L6807(line 6807) the Hoare annotation is: (let ((.cse0 (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 16)))) (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= 16 |ensure_string_is_allocated_bounded_length_~max_size#1|)) (= |#memory_int| |old(#memory_int)|) (or (<= (+ (* 18446744073709551616 (div (+ 18446744073709551615 (* |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1| (- 1))) 18446744073709551616)) |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1|) 15) .cse0) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|) (or (let ((.cse1 (div |ensure_string_is_allocated_bounded_length_~len~1#1| 18446744073709551616))) (<= (+ |ensure_string_is_allocated_bounded_length_~len~1#1| (* 18446744073709551616 (div (+ 18446744073709551615 (* |ensure_string_is_allocated_bounded_length_~len~1#1| (- 1)) (* .cse1 18446744073709551616)) 18446744073709551616))) (+ (* 18446744073709551616 .cse1) 15))) .cse0))) [2021-11-16 20:55:20,661 INFO L858 garLoopResultBuilder]: For program point L6810-3(line 6810) no Hoare annotation was computed. [2021-11-16 20:55:20,661 INFO L854 garLoopResultBuilder]: At program point L6810-2(line 6810) the Hoare annotation is: (and (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= 16 |ensure_string_is_allocated_bounded_length_~max_size#1|)) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.offset| 0) (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 16)) (< |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| |#StackHeapBarrier|)) [2021-11-16 20:55:20,661 INFO L858 garLoopResultBuilder]: For program point L6810-1(lines 6810 6811) no Hoare annotation was computed. [2021-11-16 20:55:20,661 INFO L854 garLoopResultBuilder]: At program point L6802(line 6802) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= 16 |ensure_string_is_allocated_bounded_length_~max_size#1|)) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|)) [2021-11-16 20:55:20,661 INFO L854 garLoopResultBuilder]: At program point ensure_string_is_allocated_bounded_lengthENTRY(lines 6800 6804) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|)) [2021-11-16 20:55:20,661 INFO L858 garLoopResultBuilder]: For program point L6810-5(lines 6810 6811) no Hoare annotation was computed. [2021-11-16 20:55:20,662 INFO L858 garLoopResultBuilder]: For program point L6801-1(line 6801) no Hoare annotation was computed. [2021-11-16 20:55:20,662 INFO L854 garLoopResultBuilder]: At program point L6801(line 6801) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= 16 |ensure_string_is_allocated_bounded_length_~max_size#1|)) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|)) [2021-11-16 20:55:20,662 INFO L858 garLoopResultBuilder]: For program point L6802-1(line 6802) no Hoare annotation was computed. [2021-11-16 20:55:20,662 INFO L858 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthFINAL(lines 6800 6804) no Hoare annotation was computed. [2021-11-16 20:55:20,662 INFO L854 garLoopResultBuilder]: At program point bounded_mallocENTRY(lines 6882 6887) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-11-16 20:55:20,662 INFO L858 garLoopResultBuilder]: For program point bounded_mallocFINAL(lines 6882 6887) no Hoare annotation was computed. [2021-11-16 20:55:20,662 INFO L858 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6882 6887) no Hoare annotation was computed. [2021-11-16 20:55:20,662 INFO L858 garLoopResultBuilder]: For program point L6883-1(lines 6883 6885) no Hoare annotation was computed. [2021-11-16 20:55:20,662 INFO L854 garLoopResultBuilder]: At program point L6883(lines 6883 6885) the Hoare annotation is: (and (= |bounded_malloc_#in~size| bounded_malloc_~size) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-11-16 20:55:20,662 INFO L858 garLoopResultBuilder]: For program point nondet_boolFINAL(line 261) no Hoare annotation was computed. [2021-11-16 20:55:20,662 INFO L858 garLoopResultBuilder]: For program point nondet_boolEXIT(line 261) no Hoare annotation was computed. [2021-11-16 20:55:20,662 INFO L861 garLoopResultBuilder]: At program point nondet_boolENTRY(line 261) the Hoare annotation is: true [2021-11-16 20:55:20,662 INFO L861 garLoopResultBuilder]: At program point aws_string_bytesENTRY(lines 6242 6246) the Hoare annotation is: true [2021-11-16 20:55:20,662 INFO L858 garLoopResultBuilder]: For program point aws_string_bytesEXIT(lines 6242 6246) no Hoare annotation was computed. [2021-11-16 20:55:20,662 INFO L858 garLoopResultBuilder]: For program point aws_string_bytesFINAL(lines 6242 6246) no Hoare annotation was computed. [2021-11-16 20:55:20,662 INFO L861 garLoopResultBuilder]: At program point L6244-1(line 6244) the Hoare annotation is: true [2021-11-16 20:55:20,662 INFO L858 garLoopResultBuilder]: For program point L6244-2(line 6244) no Hoare annotation was computed. [2021-11-16 20:55:20,662 INFO L861 garLoopResultBuilder]: At program point L6244(line 6244) the Hoare annotation is: true [2021-11-16 20:55:20,662 INFO L858 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2021-11-16 20:55:20,663 INFO L861 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 210 212) the Hoare annotation is: true [2021-11-16 20:55:20,663 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-11-16 20:55:20,663 INFO L858 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2021-11-16 20:55:20,663 INFO L858 garLoopResultBuilder]: For program point can_fail_allocatorFINAL(lines 6889 6891) no Hoare annotation was computed. [2021-11-16 20:55:20,663 INFO L858 garLoopResultBuilder]: For program point can_fail_allocatorEXIT(lines 6889 6891) no Hoare annotation was computed. [2021-11-16 20:55:20,663 INFO L861 garLoopResultBuilder]: At program point can_fail_allocatorENTRY(lines 6889 6891) the Hoare annotation is: true [2021-11-16 20:55:20,663 INFO L861 garLoopResultBuilder]: At program point aws_string_is_validENTRY(lines 6252 6257) the Hoare annotation is: true [2021-11-16 20:55:20,663 INFO L858 garLoopResultBuilder]: For program point L6256-2(line 6256) no Hoare annotation was computed. [2021-11-16 20:55:20,663 INFO L858 garLoopResultBuilder]: For program point L6256(line 6256) no Hoare annotation was computed. [2021-11-16 20:55:20,663 INFO L858 garLoopResultBuilder]: For program point L6256-5(line 6256) no Hoare annotation was computed. [2021-11-16 20:55:20,663 INFO L858 garLoopResultBuilder]: For program point aws_string_is_validFINAL(lines 6252 6257) no Hoare annotation was computed. [2021-11-16 20:55:20,663 INFO L858 garLoopResultBuilder]: For program point L6256-3(line 6256) no Hoare annotation was computed. [2021-11-16 20:55:20,663 INFO L858 garLoopResultBuilder]: For program point aws_string_is_validEXIT(lines 6252 6257) no Hoare annotation was computed. [2021-11-16 20:55:20,663 INFO L861 garLoopResultBuilder]: At program point aws_byte_cursor_is_validENTRY(lines 7368 7372) the Hoare annotation is: true [2021-11-16 20:55:20,663 INFO L858 garLoopResultBuilder]: For program point L7371(line 7371) no Hoare annotation was computed. [2021-11-16 20:55:20,664 INFO L858 garLoopResultBuilder]: For program point L7371-5(line 7371) no Hoare annotation was computed. [2021-11-16 20:55:20,664 INFO L858 garLoopResultBuilder]: For program point L7371-4(line 7371) no Hoare annotation was computed. [2021-11-16 20:55:20,664 INFO L858 garLoopResultBuilder]: For program point L7371-2(line 7371) no Hoare annotation was computed. [2021-11-16 20:55:20,664 INFO L858 garLoopResultBuilder]: For program point L7371-8(line 7371) no Hoare annotation was computed. [2021-11-16 20:55:20,664 INFO L858 garLoopResultBuilder]: For program point L7371-6(line 7371) no Hoare annotation was computed. [2021-11-16 20:55:20,664 INFO L858 garLoopResultBuilder]: For program point aws_byte_cursor_is_validEXIT(lines 7368 7372) no Hoare annotation was computed. [2021-11-16 20:55:20,664 INFO L858 garLoopResultBuilder]: For program point L7371-11(line 7371) no Hoare annotation was computed. [2021-11-16 20:55:20,665 INFO L858 garLoopResultBuilder]: For program point L7371-10(line 7371) no Hoare annotation was computed. [2021-11-16 20:55:20,665 INFO L858 garLoopResultBuilder]: For program point L7370(lines 7370 7371) no Hoare annotation was computed. [2021-11-16 20:55:20,665 INFO L858 garLoopResultBuilder]: For program point L7370-2(lines 7370 7371) no Hoare annotation was computed. [2021-11-16 20:55:20,665 INFO L858 garLoopResultBuilder]: For program point aws_byte_cursor_is_validFINAL(lines 7368 7372) no Hoare annotation was computed. [2021-11-16 20:55:20,665 INFO L858 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2021-11-16 20:55:20,666 INFO L861 garLoopResultBuilder]: At program point nondet_uint64_tENTRY(line 266) the Hoare annotation is: true [2021-11-16 20:55:20,666 INFO L858 garLoopResultBuilder]: For program point nondet_uint64_tFINAL(line 266) no Hoare annotation was computed. [2021-11-16 20:55:20,666 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-16 20:55:20,666 INFO L858 garLoopResultBuilder]: For program point L7106-1(line 7106) no Hoare annotation was computed. [2021-11-16 20:55:20,666 INFO L858 garLoopResultBuilder]: For program point L9538-1(line 9538) no Hoare annotation was computed. [2021-11-16 20:55:20,666 INFO L858 garLoopResultBuilder]: For program point L7100-1(lines 7099 7112) no Hoare annotation was computed. [2021-11-16 20:55:20,666 INFO L854 garLoopResultBuilder]: At program point L7100(line 7100) the Hoare annotation is: false [2021-11-16 20:55:20,666 INFO L858 garLoopResultBuilder]: For program point L9518-1(line 9518) no Hoare annotation was computed. [2021-11-16 20:55:20,666 INFO L858 garLoopResultBuilder]: For program point L8240-2(line 8240) no Hoare annotation was computed. [2021-11-16 20:55:20,666 INFO L854 garLoopResultBuilder]: At program point L8240-1(line 8240) the Hoare annotation is: false [2021-11-16 20:55:20,667 INFO L854 garLoopResultBuilder]: At program point L9518-2(lines 9516 9519) the Hoare annotation is: false [2021-11-16 20:55:20,667 INFO L854 garLoopResultBuilder]: At program point L8240(line 8240) the Hoare annotation is: false [2021-11-16 20:55:20,667 INFO L858 garLoopResultBuilder]: For program point L8236-1(line 8236) no Hoare annotation was computed. [2021-11-16 20:55:20,667 INFO L854 garLoopResultBuilder]: At program point L8236(line 8236) the Hoare annotation is: false [2021-11-16 20:55:20,667 INFO L854 garLoopResultBuilder]: At program point L9518(line 9518) the Hoare annotation is: false [2021-11-16 20:55:20,667 INFO L854 garLoopResultBuilder]: At program point L9541(line 9541) the Hoare annotation is: false [2021-11-16 20:55:20,667 INFO L854 garLoopResultBuilder]: At program point L9541-1(line 9541) the Hoare annotation is: false [2021-11-16 20:55:20,667 INFO L858 garLoopResultBuilder]: For program point L9541-2(line 9541) no Hoare annotation was computed. [2021-11-16 20:55:20,667 INFO L858 garLoopResultBuilder]: For program point L7107-1(lines 7107 7109) no Hoare annotation was computed. [2021-11-16 20:55:20,668 INFO L854 garLoopResultBuilder]: At program point L7107(lines 7107 7109) the Hoare annotation is: false [2021-11-16 20:55:20,668 INFO L854 garLoopResultBuilder]: At program point L9543(line 9543) the Hoare annotation is: false [2021-11-16 20:55:20,668 INFO L858 garLoopResultBuilder]: For program point L9543-1(line 9543) no Hoare annotation was computed. [2021-11-16 20:55:20,668 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-16 20:55:20,668 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-16 20:55:20,668 INFO L858 garLoopResultBuilder]: For program point L9537(lines 9537 9545) no Hoare annotation was computed. [2021-11-16 20:55:20,668 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-16 20:55:20,668 INFO L858 garLoopResultBuilder]: For program point L7099(lines 7099 7112) no Hoare annotation was computed. [2021-11-16 20:55:20,668 INFO L854 garLoopResultBuilder]: At program point L9517(line 9517) the Hoare annotation is: false [2021-11-16 20:55:20,669 INFO L854 garLoopResultBuilder]: At program point L9517-1(line 9517) the Hoare annotation is: false [2021-11-16 20:55:20,669 INFO L858 garLoopResultBuilder]: For program point L9517-2(line 9517) no Hoare annotation was computed. [2021-11-16 20:55:20,669 INFO L854 garLoopResultBuilder]: At program point L8241(lines 8235 8242) the Hoare annotation is: false [2021-11-16 20:55:20,669 INFO L861 garLoopResultBuilder]: At program point L9546(line 9546) the Hoare annotation is: true [2021-11-16 20:55:20,669 INFO L858 garLoopResultBuilder]: For program point L9542-1(line 9542) no Hoare annotation was computed. [2021-11-16 20:55:20,670 INFO L854 garLoopResultBuilder]: At program point L7110(line 7110) the Hoare annotation is: false [2021-11-16 20:55:20,670 INFO L854 garLoopResultBuilder]: At program point L9540(line 9540) the Hoare annotation is: false [2021-11-16 20:55:20,670 INFO L854 garLoopResultBuilder]: At program point L9540-1(line 9540) the Hoare annotation is: false [2021-11-16 20:55:20,670 INFO L861 garLoopResultBuilder]: At program point L9538(line 9538) the Hoare annotation is: true [2021-11-16 20:55:20,671 INFO L858 garLoopResultBuilder]: For program point L9540-2(line 9540) no Hoare annotation was computed. [2021-11-16 20:55:20,671 INFO L854 garLoopResultBuilder]: At program point L7106(line 7106) the Hoare annotation is: false [2021-11-16 20:55:20,671 INFO L854 garLoopResultBuilder]: At program point L9542(line 9542) the Hoare annotation is: false [2021-11-16 20:55:20,671 INFO L858 garLoopResultBuilder]: For program point L7110-1(line 7110) no Hoare annotation was computed. [2021-11-16 20:55:20,671 INFO L858 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-11-16 20:55:20,671 INFO L861 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 222 224) the Hoare annotation is: true [2021-11-16 20:55:20,671 INFO L858 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-11-16 20:55:20,671 INFO L858 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2021-11-16 20:55:20,671 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2021-11-16 20:55:20,672 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-16 20:55:20,674 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-11-16 20:55:20,675 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-16 20:55:20,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 08:55:20 BoogieIcfgContainer [2021-11-16 20:55:20,695 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-16 20:55:20,696 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-16 20:55:20,696 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-16 20:55:20,696 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-16 20:55:20,697 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:54:32" (3/4) ... [2021-11-16 20:55:20,699 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-16 20:55:20,703 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ensure_string_is_allocated_bounded_length [2021-11-16 20:55:20,703 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2021-11-16 20:55:20,703 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_byte_cursor_is_valid [2021-11-16 20:55:20,703 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2021-11-16 20:55:20,703 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2021-11-16 20:55:20,704 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_bytes [2021-11-16 20:55:20,704 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2021-11-16 20:55:20,704 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-11-16 20:55:20,704 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2021-11-16 20:55:20,704 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_is_valid [2021-11-16 20:55:20,716 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 127 nodes and edges [2021-11-16 20:55:20,717 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 57 nodes and edges [2021-11-16 20:55:20,718 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2021-11-16 20:55:20,718 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-11-16 20:55:20,719 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-11-16 20:55:20,720 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-16 20:55:20,721 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-16 20:55:20,722 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-16 20:55:20,748 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((\old(max_size) == max_size || 16 == max_size) && ((0 == unknown-#memory_int-unknown[\result][\result + 8] || ((18446744073709551615 + unknown-#memory_int-unknown[\result][\result + 8] * -1) / -18446744073709551616 < (-9223372036854775808 + unknown-#memory_int-unknown[\result][\result + 8]) / 18446744073709551616 + 1 && unknown-#memory_int-unknown[\result][\result + -18446744073709551600 + unknown-#memory_int-unknown[\result][\result + 8] % 18446744073709551616] == 0)) || ((9223372036854775807 + unknown-#memory_int-unknown[\result][\result + 8] * -1) / -18446744073709551616 <= unknown-#memory_int-unknown[\result][\result + 8] / 18446744073709551616 && unknown-#memory_int-unknown[\result][\result + 16 + unknown-#memory_int-unknown[\result][\result + 8] % 18446744073709551616] == 0))) && !(str == 0)) && str == 0) && !(\result == 0)) && \result < unknown-#StackHeapBarrier-unknown) && !(\old(max_size) == 16)) && str < unknown-#StackHeapBarrier-unknown) && \result == 0 [2021-11-16 20:55:21,305 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-11-16 20:55:21,306 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-16 20:55:21,306 INFO L158 Benchmark]: Toolchain (without parser) took 51422.01ms. Allocated memory was 119.5MB in the beginning and 234.9MB in the end (delta: 115.3MB). Free memory was 85.0MB in the beginning and 138.3MB in the end (delta: -53.3MB). Peak memory consumption was 179.8MB. Max. memory is 16.1GB. [2021-11-16 20:55:21,306 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 119.5MB. Free memory is still 77.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-16 20:55:21,307 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1768.40ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 84.8MB in the beginning and 60.7MB in the end (delta: 24.0MB). Peak memory consumption was 64.0MB. Max. memory is 16.1GB. [2021-11-16 20:55:21,307 INFO L158 Benchmark]: Boogie Procedure Inliner took 160.40ms. Allocated memory was 144.7MB in the beginning and 195.0MB in the end (delta: 50.3MB). Free memory was 60.7MB in the beginning and 137.8MB in the end (delta: -77.1MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. [2021-11-16 20:55:21,307 INFO L158 Benchmark]: Boogie Preprocessor took 80.39ms. Allocated memory is still 195.0MB. Free memory was 137.8MB in the beginning and 131.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-16 20:55:21,307 INFO L158 Benchmark]: RCFGBuilder took 1046.71ms. Allocated memory is still 195.0MB. Free memory was 131.5MB in the beginning and 103.5MB in the end (delta: 28.0MB). Peak memory consumption was 60.2MB. Max. memory is 16.1GB. [2021-11-16 20:55:21,308 INFO L158 Benchmark]: TraceAbstraction took 47752.38ms. Allocated memory was 195.0MB in the beginning and 234.9MB in the end (delta: 39.8MB). Free memory was 102.4MB in the beginning and 160.7MB in the end (delta: -58.2MB). Peak memory consumption was 105.0MB. Max. memory is 16.1GB. [2021-11-16 20:55:21,308 INFO L158 Benchmark]: Witness Printer took 609.69ms. Allocated memory is still 234.9MB. Free memory was 160.7MB in the beginning and 138.3MB in the end (delta: 22.4MB). Peak memory consumption was 138.8MB. Max. memory is 16.1GB. [2021-11-16 20:55:21,309 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 119.5MB. Free memory is still 77.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1768.40ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 84.8MB in the beginning and 60.7MB in the end (delta: 24.0MB). Peak memory consumption was 64.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 160.40ms. Allocated memory was 144.7MB in the beginning and 195.0MB in the end (delta: 50.3MB). Free memory was 60.7MB in the beginning and 137.8MB in the end (delta: -77.1MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 80.39ms. Allocated memory is still 195.0MB. Free memory was 137.8MB in the beginning and 131.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1046.71ms. Allocated memory is still 195.0MB. Free memory was 131.5MB in the beginning and 103.5MB in the end (delta: 28.0MB). Peak memory consumption was 60.2MB. Max. memory is 16.1GB. * TraceAbstraction took 47752.38ms. Allocated memory was 195.0MB in the beginning and 234.9MB in the end (delta: 39.8MB). Free memory was 102.4MB in the beginning and 160.7MB in the end (delta: -58.2MB). Peak memory consumption was 105.0MB. Max. memory is 16.1GB. * Witness Printer took 609.69ms. Allocated memory is still 234.9MB. Free memory was 160.7MB in the beginning and 138.3MB in the end (delta: 22.4MB). Peak memory consumption was 138.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 104 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 47.7s, OverallIterations: 7, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 18.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 5 mSolverCounterUnknown, 518 SdHoareTripleChecker+Valid, 16.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 492 mSDsluCounter, 4115 SdHoareTripleChecker+Invalid, 15.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 367 IncrementalHoareTripleChecker+Unchecked, 3437 mSDsCounter, 244 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1764 IncrementalHoareTripleChecker+Invalid, 2380 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 244 mSolverCounterUnsat, 678 mSDtfsCounter, 1764 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 599 GetRequests, 421 SyntacticMatches, 7 SemanticMatches, 171 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1754 ImplicationChecksByTransitivity, 17.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=124occurred in iteration=4, InterpolantAutomatonStates: 72, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 17 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 39 LocationsWithAnnotation, 112 PreInvPairs, 117 NumberOfFragments, 365 HoareAnnotationTreeSize, 112 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 39 FomulaSimplificationsInter, 96 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 26.8s InterpolantComputationTime, 920 NumberOfCodeBlocks, 920 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 910 ConstructedInterpolants, 67 QuantifiedInterpolants, 9490 SizeOfPredicates, 59 NumberOfNonLiveVariables, 7751 ConjunctsInSsa, 176 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 429/502 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 9516]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 8235]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6806]: Loop Invariant Derived loop invariant: ((((((((\old(max_size) == max_size || 16 == max_size) && ((0 == unknown-#memory_int-unknown[\result][\result + 8] || ((18446744073709551615 + unknown-#memory_int-unknown[\result][\result + 8] * -1) / -18446744073709551616 < (-9223372036854775808 + unknown-#memory_int-unknown[\result][\result + 8]) / 18446744073709551616 + 1 && unknown-#memory_int-unknown[\result][\result + -18446744073709551600 + unknown-#memory_int-unknown[\result][\result + 8] % 18446744073709551616] == 0)) || ((9223372036854775807 + unknown-#memory_int-unknown[\result][\result + 8] * -1) / -18446744073709551616 <= unknown-#memory_int-unknown[\result][\result + 8] / 18446744073709551616 && unknown-#memory_int-unknown[\result][\result + 16 + unknown-#memory_int-unknown[\result][\result + 8] % 18446744073709551616] == 0))) && !(str == 0)) && str == 0) && !(\result == 0)) && \result < unknown-#StackHeapBarrier-unknown) && !(\old(max_size) == 16)) && str < unknown-#StackHeapBarrier-unknown) && \result == 0 - InvariantResult [Line: 9546]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-16 20:55:21,351 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 Writing output log to file Ultimate.log Result: TRUE