./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fcb8e130 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_string_compare_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 66fb9bfec5c458b51d86deb6748dd65f162e7ac6a772af5f3fec59d101a18d8d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-fcb8e13 [2021-11-22 20:45:15,429 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 20:45:15,431 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 20:45:15,461 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 20:45:15,461 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 20:45:15,463 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 20:45:15,464 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 20:45:15,466 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 20:45:15,467 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 20:45:15,470 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 20:45:15,471 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 20:45:15,472 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 20:45:15,472 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 20:45:15,473 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 20:45:15,475 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 20:45:15,479 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 20:45:15,479 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 20:45:15,480 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 20:45:15,481 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 20:45:15,485 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 20:45:15,486 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 20:45:15,486 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 20:45:15,487 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 20:45:15,488 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 20:45:15,492 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 20:45:15,492 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 20:45:15,492 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 20:45:15,493 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 20:45:15,494 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 20:45:15,494 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 20:45:15,494 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 20:45:15,495 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 20:45:15,496 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 20:45:15,496 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 20:45:15,497 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 20:45:15,497 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 20:45:15,498 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 20:45:15,498 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 20:45:15,498 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 20:45:15,499 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 20:45:15,499 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 20:45:15,500 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-22 20:45:15,526 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 20:45:15,527 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 20:45:15,527 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 20:45:15,527 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 20:45:15,528 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 20:45:15,528 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 20:45:15,529 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 20:45:15,529 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 20:45:15,529 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 20:45:15,529 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 20:45:15,530 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 20:45:15,530 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 20:45:15,530 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 20:45:15,530 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 20:45:15,530 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 20:45:15,530 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 20:45:15,531 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 20:45:15,531 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 20:45:15,531 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 20:45:15,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 20:45:15,531 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 20:45:15,531 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 20:45:15,532 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 20:45:15,532 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 20:45:15,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 20:45:15,532 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 20:45:15,532 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 20:45:15,533 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 20:45:15,533 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 20:45:15,533 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66fb9bfec5c458b51d86deb6748dd65f162e7ac6a772af5f3fec59d101a18d8d [2021-11-22 20:45:15,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 20:45:15,730 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 20:45:15,732 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 20:45:15,733 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 20:45:15,734 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 20:45:15,734 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i [2021-11-22 20:45:15,783 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52c3f19a3/81f0f3d2075f4293b2454537a0bff2ae/FLAGe460a20ff [2021-11-22 20:45:16,358 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 20:45:16,361 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i [2021-11-22 20:45:16,397 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52c3f19a3/81f0f3d2075f4293b2454537a0bff2ae/FLAGe460a20ff [2021-11-22 20:45:16,801 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52c3f19a3/81f0f3d2075f4293b2454537a0bff2ae [2021-11-22 20:45:16,803 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 20:45:16,804 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 20:45:16,807 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 20:45:16,807 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 20:45:16,809 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 20:45:16,810 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 08:45:16" (1/1) ... [2021-11-22 20:45:16,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bc4a72a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:45:16, skipping insertion in model container [2021-11-22 20:45:16,810 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 08:45:16" (1/1) ... [2021-11-22 20:45:16,815 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 20:45:16,887 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 20:45:17,079 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_string_compare_harness.i[4492,4505] [2021-11-22 20:45:17,084 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_string_compare_harness.i[4552,4565] [2021-11-22 20:45:17,599 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:45:17,600 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:45:17,600 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:45:17,601 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:45:17,601 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:45:17,610 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:45:17,610 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:45:17,611 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:45:17,612 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:45:17,812 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-22 20:45:17,813 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-22 20:45:17,814 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-22 20:45:17,815 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-22 20:45:17,819 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-22 20:45:17,820 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-22 20:45:17,821 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-22 20:45:17,823 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-22 20:45:17,825 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-22 20:45:17,826 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-22 20:45:17,924 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-22 20:45:18,023 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:45:18,024 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:45:18,071 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 20:45:18,101 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 20:45:18,109 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_string_compare_harness.i[4492,4505] [2021-11-22 20:45:18,110 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_string_compare_harness.i[4552,4565] [2021-11-22 20:45:18,135 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:45:18,135 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:45:18,135 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:45:18,136 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:45:18,136 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:45:18,139 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:45:18,140 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:45:18,140 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:45:18,140 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:45:18,157 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-22 20:45:18,158 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-22 20:45:18,159 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-22 20:45:18,159 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-22 20:45:18,160 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-22 20:45:18,160 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-22 20:45:18,160 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-22 20:45:18,160 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-22 20:45:18,161 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-22 20:45:18,161 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-22 20:45:18,177 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-22 20:45:18,233 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:45:18,233 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-22 20:45:18,271 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 20:45:18,443 INFO L208 MainTranslator]: Completed translation [2021-11-22 20:45:18,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:45:18 WrapperNode [2021-11-22 20:45:18,443 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 20:45:18,444 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 20:45:18,444 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 20:45:18,444 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 20:45:18,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:45:18" (1/1) ... [2021-11-22 20:45:18,510 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:45:18" (1/1) ... [2021-11-22 20:45:18,583 INFO L137 Inliner]: procedures = 693, calls = 2780, calls flagged for inlining = 1056, calls inlined = 47, statements flattened = 1151 [2021-11-22 20:45:18,585 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 20:45:18,586 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 20:45:18,586 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 20:45:18,586 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 20:45:18,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:45:18" (1/1) ... [2021-11-22 20:45:18,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:45:18" (1/1) ... [2021-11-22 20:45:18,605 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:45:18" (1/1) ... [2021-11-22 20:45:18,605 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:45:18" (1/1) ... [2021-11-22 20:45:18,641 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:45:18" (1/1) ... [2021-11-22 20:45:18,650 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:45:18" (1/1) ... [2021-11-22 20:45:18,654 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:45:18" (1/1) ... [2021-11-22 20:45:18,660 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 20:45:18,661 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 20:45:18,661 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 20:45:18,662 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 20:45:18,662 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:45:18" (1/1) ... [2021-11-22 20:45:18,668 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 20:45:18,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 20:45:18,688 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) [2021-11-22 20:45:18,707 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 [2021-11-22 20:45:18,718 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-22 20:45:18,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 20:45:18,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 20:45:18,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 20:45:18,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 20:45:18,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 20:45:18,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 20:45:18,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-22 20:45:18,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-22 20:45:18,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 20:45:18,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 20:45:18,959 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 20:45:18,960 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 20:45:19,677 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 20:45:19,682 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 20:45:19,682 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-22 20:45:19,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 08:45:19 BoogieIcfgContainer [2021-11-22 20:45:19,684 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 20:45:19,685 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 20:45:19,685 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 20:45:19,688 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 20:45:19,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 08:45:16" (1/3) ... [2021-11-22 20:45:19,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bcb8c4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 08:45:19, skipping insertion in model container [2021-11-22 20:45:19,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:45:18" (2/3) ... [2021-11-22 20:45:19,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bcb8c4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 08:45:19, skipping insertion in model container [2021-11-22 20:45:19,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 08:45:19" (3/3) ... [2021-11-22 20:45:19,690 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_string_compare_harness.i [2021-11-22 20:45:19,694 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 20:45:19,694 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-22 20:45:19,729 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 20:45:19,734 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 [2021-11-22 20:45:19,734 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-22 20:45:19,745 INFO L276 IsEmpty]: Start isEmpty. Operand has 138 states, 131 states have (on average 1.4351145038167938) internal successors, (188), 137 states have internal predecessors, (188), 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) [2021-11-22 20:45:19,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-22 20:45:19,749 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:45:19,749 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:45:19,750 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-22 20:45:19,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:45:19,754 INFO L85 PathProgramCache]: Analyzing trace with hash 171211731, now seen corresponding path program 1 times [2021-11-22 20:45:19,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:45:19,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832257865] [2021-11-22 20:45:19,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:45:19,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:45:19,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:45:20,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:45:20,102 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:45:20,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832257865] [2021-11-22 20:45:20,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832257865] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:45:20,103 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:45:20,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 20:45:20,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408693440] [2021-11-22 20:45:20,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:45:20,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-22 20:45:20,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:45:20,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-22 20:45:20,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 20:45:20,124 INFO L87 Difference]: Start difference. First operand has 138 states, 131 states have (on average 1.4351145038167938) internal successors, (188), 137 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 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) [2021-11-22 20:45:20,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:45:20,152 INFO L93 Difference]: Finished difference Result 270 states and 368 transitions. [2021-11-22 20:45:20,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 20:45:20,154 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-11-22 20:45:20,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:45:20,159 INFO L225 Difference]: With dead ends: 270 [2021-11-22 20:45:20,160 INFO L226 Difference]: Without dead ends: 133 [2021-11-22 20:45:20,162 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 20:45:20,164 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 20:45:20,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 20:45:20,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-11-22 20:45:20,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2021-11-22 20:45:20,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 127 states have (on average 1.31496062992126) internal successors, (167), 132 states have internal predecessors, (167), 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) [2021-11-22 20:45:20,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 167 transitions. [2021-11-22 20:45:20,192 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 167 transitions. Word has length 28 [2021-11-22 20:45:20,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:45:20,192 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 167 transitions. [2021-11-22 20:45:20,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 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) [2021-11-22 20:45:20,193 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 167 transitions. [2021-11-22 20:45:20,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-22 20:45:20,194 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:45:20,194 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:45:20,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 20:45:20,194 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-22 20:45:20,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:45:20,195 INFO L85 PathProgramCache]: Analyzing trace with hash -379969457, now seen corresponding path program 1 times [2021-11-22 20:45:20,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:45:20,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100992896] [2021-11-22 20:45:20,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:45:20,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:45:20,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:45:20,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:45:20,396 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:45:20,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100992896] [2021-11-22 20:45:20,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100992896] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:45:20,397 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:45:20,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 20:45:20,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048365390] [2021-11-22 20:45:20,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:45:20,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 20:45:20,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:45:20,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 20:45:20,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 20:45:20,401 INFO L87 Difference]: Start difference. First operand 133 states and 167 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2021-11-22 20:45:20,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:45:20,457 INFO L93 Difference]: Finished difference Result 260 states and 328 transitions. [2021-11-22 20:45:20,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 20:45:20,457 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-11-22 20:45:20,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:45:20,459 INFO L225 Difference]: With dead ends: 260 [2021-11-22 20:45:20,459 INFO L226 Difference]: Without dead ends: 228 [2021-11-22 20:45:20,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 20:45:20,463 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 101 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 20:45:20,464 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 477 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 20:45:20,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2021-11-22 20:45:20,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 215. [2021-11-22 20:45:20,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 209 states have (on average 1.325358851674641) internal successors, (277), 214 states have internal predecessors, (277), 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) [2021-11-22 20:45:20,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 277 transitions. [2021-11-22 20:45:20,477 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 277 transitions. Word has length 28 [2021-11-22 20:45:20,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:45:20,477 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 277 transitions. [2021-11-22 20:45:20,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2021-11-22 20:45:20,477 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 277 transitions. [2021-11-22 20:45:20,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-22 20:45:20,478 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:45:20,478 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:45:20,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 20:45:20,478 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-22 20:45:20,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:45:20,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1275741299, now seen corresponding path program 1 times [2021-11-22 20:45:20,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:45:20,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581571224] [2021-11-22 20:45:20,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:45:20,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:45:20,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:45:20,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:45:20,598 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:45:20,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581571224] [2021-11-22 20:45:20,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581571224] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:45:20,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:45:20,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 20:45:20,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247032576] [2021-11-22 20:45:20,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:45:20,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 20:45:20,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:45:20,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 20:45:20,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 20:45:20,604 INFO L87 Difference]: Start difference. First operand 215 states and 277 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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) [2021-11-22 20:45:20,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:45:20,646 INFO L93 Difference]: Finished difference Result 274 states and 348 transitions. [2021-11-22 20:45:20,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 20:45:20,647 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-22 20:45:20,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:45:20,650 INFO L225 Difference]: With dead ends: 274 [2021-11-22 20:45:20,650 INFO L226 Difference]: Without dead ends: 254 [2021-11-22 20:45:20,651 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 20:45:20,655 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 40 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 20:45:20,656 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 486 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 20:45:20,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2021-11-22 20:45:20,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 219. [2021-11-22 20:45:20,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 213 states have (on average 1.3192488262910798) internal successors, (281), 218 states have internal predecessors, (281), 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) [2021-11-22 20:45:20,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 281 transitions. [2021-11-22 20:45:20,672 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 281 transitions. Word has length 34 [2021-11-22 20:45:20,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:45:20,672 INFO L470 AbstractCegarLoop]: Abstraction has 219 states and 281 transitions. [2021-11-22 20:45:20,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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) [2021-11-22 20:45:20,672 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 281 transitions. [2021-11-22 20:45:20,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-22 20:45:20,673 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:45:20,673 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:45:20,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 20:45:20,674 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-22 20:45:20,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:45:20,674 INFO L85 PathProgramCache]: Analyzing trace with hash -195959278, now seen corresponding path program 1 times [2021-11-22 20:45:20,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:45:20,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085200366] [2021-11-22 20:45:20,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:45:20,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:45:20,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:45:20,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:45:20,887 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:45:20,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085200366] [2021-11-22 20:45:20,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085200366] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:45:20,888 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:45:20,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-22 20:45:20,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569532182] [2021-11-22 20:45:20,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:45:20,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-22 20:45:20,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:45:20,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-22 20:45:20,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-22 20:45:20,889 INFO L87 Difference]: Start difference. First operand 219 states and 281 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:45:20,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:45:20,993 INFO L93 Difference]: Finished difference Result 416 states and 532 transitions. [2021-11-22 20:45:20,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-22 20:45:20,994 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-11-22 20:45:20,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:45:20,995 INFO L225 Difference]: With dead ends: 416 [2021-11-22 20:45:20,995 INFO L226 Difference]: Without dead ends: 371 [2021-11-22 20:45:20,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-11-22 20:45:20,997 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 370 mSDsluCounter, 912 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 1082 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 20:45:20,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [370 Valid, 1082 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 20:45:20,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2021-11-22 20:45:21,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 348. [2021-11-22 20:45:21,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 342 states have (on average 1.327485380116959) internal successors, (454), 347 states have internal predecessors, (454), 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) [2021-11-22 20:45:21,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 454 transitions. [2021-11-22 20:45:21,027 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 454 transitions. Word has length 35 [2021-11-22 20:45:21,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:45:21,031 INFO L470 AbstractCegarLoop]: Abstraction has 348 states and 454 transitions. [2021-11-22 20:45:21,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 20:45:21,031 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 454 transitions. [2021-11-22 20:45:21,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-22 20:45:21,033 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:45:21,033 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:45:21,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-22 20:45:21,033 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-22 20:45:21,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:45:21,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1898656179, now seen corresponding path program 1 times [2021-11-22 20:45:21,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:45:21,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648181232] [2021-11-22 20:45:21,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:45:21,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:45:21,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:45:21,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:45:21,242 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:45:21,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648181232] [2021-11-22 20:45:21,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648181232] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:45:21,242 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:45:21,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-11-22 20:45:21,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983169435] [2021-11-22 20:45:21,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:45:21,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-22 20:45:21,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:45:21,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-22 20:45:21,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2021-11-22 20:45:21,244 INFO L87 Difference]: Start difference. First operand 348 states and 454 transitions. Second operand has 14 states, 14 states have (on average 2.7857142857142856) internal successors, (39), 14 states have internal predecessors, (39), 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) [2021-11-22 20:45:21,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:45:21,910 INFO L93 Difference]: Finished difference Result 705 states and 911 transitions. [2021-11-22 20:45:21,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-11-22 20:45:21,911 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.7857142857142856) internal successors, (39), 14 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-11-22 20:45:21,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:45:21,912 INFO L225 Difference]: With dead ends: 705 [2021-11-22 20:45:21,913 INFO L226 Difference]: Without dead ends: 523 [2021-11-22 20:45:21,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=426, Invalid=1296, Unknown=0, NotChecked=0, Total=1722 [2021-11-22 20:45:21,916 INFO L933 BasicCegarLoop]: 464 mSDtfsCounter, 1716 mSDsluCounter, 3409 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1716 SdHoareTripleChecker+Valid, 3873 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-22 20:45:21,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1716 Valid, 3873 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-22 20:45:21,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2021-11-22 20:45:21,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 392. [2021-11-22 20:45:21,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 386 states have (on average 1.3186528497409327) internal successors, (509), 391 states have internal predecessors, (509), 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) [2021-11-22 20:45:21,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 509 transitions. [2021-11-22 20:45:21,928 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 509 transitions. Word has length 39 [2021-11-22 20:45:21,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:45:21,929 INFO L470 AbstractCegarLoop]: Abstraction has 392 states and 509 transitions. [2021-11-22 20:45:21,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.7857142857142856) internal successors, (39), 14 states have internal predecessors, (39), 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) [2021-11-22 20:45:21,929 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 509 transitions. [2021-11-22 20:45:21,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-22 20:45:21,934 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:45:21,934 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:45:21,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-22 20:45:21,934 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-22 20:45:21,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:45:21,935 INFO L85 PathProgramCache]: Analyzing trace with hash -522626802, now seen corresponding path program 1 times [2021-11-22 20:45:21,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:45:21,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794076849] [2021-11-22 20:45:21,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:45:21,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:45:22,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:45:22,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:45:22,220 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:45:22,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794076849] [2021-11-22 20:45:22,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794076849] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:45:22,220 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:45:22,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-22 20:45:22,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596442593] [2021-11-22 20:45:22,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:45:22,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 20:45:22,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:45:22,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 20:45:22,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-22 20:45:22,222 INFO L87 Difference]: Start difference. First operand 392 states and 509 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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) [2021-11-22 20:45:22,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:45:22,275 INFO L93 Difference]: Finished difference Result 396 states and 511 transitions. [2021-11-22 20:45:22,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 20:45:22,275 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-11-22 20:45:22,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:45:22,276 INFO L225 Difference]: With dead ends: 396 [2021-11-22 20:45:22,276 INFO L226 Difference]: Without dead ends: 70 [2021-11-22 20:45:22,276 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-22 20:45:22,277 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 9 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 20:45:22,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 338 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 20:45:22,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-11-22 20:45:22,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2021-11-22 20:45:22,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 68 states have (on average 1.2647058823529411) internal successors, (86), 69 states have internal predecessors, (86), 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) [2021-11-22 20:45:22,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 86 transitions. [2021-11-22 20:45:22,280 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 86 transitions. Word has length 43 [2021-11-22 20:45:22,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:45:22,281 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 86 transitions. [2021-11-22 20:45:22,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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) [2021-11-22 20:45:22,281 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 86 transitions. [2021-11-22 20:45:22,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-22 20:45:22,282 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:45:22,282 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:45:22,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-22 20:45:22,282 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-22 20:45:22,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:45:22,283 INFO L85 PathProgramCache]: Analyzing trace with hash -56685494, now seen corresponding path program 1 times [2021-11-22 20:45:22,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:45:22,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056223712] [2021-11-22 20:45:22,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:45:22,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:45:22,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:45:22,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:45:22,460 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:45:22,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056223712] [2021-11-22 20:45:22,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056223712] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:45:22,460 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:45:22,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-22 20:45:22,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461185373] [2021-11-22 20:45:22,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:45:22,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-22 20:45:22,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:45:22,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-22 20:45:22,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-22 20:45:22,462 INFO L87 Difference]: Start difference. First operand 70 states and 86 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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) [2021-11-22 20:45:22,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:45:22,544 INFO L93 Difference]: Finished difference Result 151 states and 188 transitions. [2021-11-22 20:45:22,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 20:45:22,545 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-22 20:45:22,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:45:22,545 INFO L225 Difference]: With dead ends: 151 [2021-11-22 20:45:22,545 INFO L226 Difference]: Without dead ends: 70 [2021-11-22 20:45:22,546 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-11-22 20:45:22,546 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 110 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 20:45:22,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 475 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 20:45:22,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-11-22 20:45:22,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2021-11-22 20:45:22,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 68 states have (on average 1.2352941176470589) internal successors, (84), 69 states have internal predecessors, (84), 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) [2021-11-22 20:45:22,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 84 transitions. [2021-11-22 20:45:22,551 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 84 transitions. Word has length 50 [2021-11-22 20:45:22,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:45:22,552 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 84 transitions. [2021-11-22 20:45:22,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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) [2021-11-22 20:45:22,552 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 84 transitions. [2021-11-22 20:45:22,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-22 20:45:22,555 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 20:45:22,555 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:45:22,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-22 20:45:22,556 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-22 20:45:22,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 20:45:22,556 INFO L85 PathProgramCache]: Analyzing trace with hash 191461000, now seen corresponding path program 1 times [2021-11-22 20:45:22,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 20:45:22,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329975576] [2021-11-22 20:45:22,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 20:45:22,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 20:45:22,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 20:45:22,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 20:45:22,702 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 20:45:22,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329975576] [2021-11-22 20:45:22,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329975576] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 20:45:22,702 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 20:45:22,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-22 20:45:22,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407984749] [2021-11-22 20:45:22,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 20:45:22,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-22 20:45:22,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 20:45:22,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-22 20:45:22,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-22 20:45:22,703 INFO L87 Difference]: Start difference. First operand 70 states and 84 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 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) [2021-11-22 20:45:22,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 20:45:22,768 INFO L93 Difference]: Finished difference Result 70 states and 84 transitions. [2021-11-22 20:45:22,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 20:45:22,768 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-22 20:45:22,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 20:45:22,769 INFO L225 Difference]: With dead ends: 70 [2021-11-22 20:45:22,769 INFO L226 Difference]: Without dead ends: 0 [2021-11-22 20:45:22,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2021-11-22 20:45:22,770 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 97 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 20:45:22,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 142 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 20:45:22,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-22 20:45:22,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-22 20:45:22,771 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) [2021-11-22 20:45:22,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-22 20:45:22,771 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50 [2021-11-22 20:45:22,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 20:45:22,771 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-22 20:45:22,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 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) [2021-11-22 20:45:22,771 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-22 20:45:22,772 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-22 20:45:22,773 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2021-11-22 20:45:22,774 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2021-11-22 20:45:22,774 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2021-11-22 20:45:22,774 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2021-11-22 20:45:22,774 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2021-11-22 20:45:22,774 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2021-11-22 20:45:22,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-22 20:45:22,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-22 20:45:22,881 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-22 20:45:22,882 INFO L858 garLoopResultBuilder]: For program point L9549(lines 9549 9551) no Hoare annotation was computed. [2021-11-22 20:45:22,882 INFO L854 garLoopResultBuilder]: At program point L6890(lines 6889 6891) the Hoare annotation is: false [2021-11-22 20:45:22,882 INFO L858 garLoopResultBuilder]: For program point L9219(line 9219) no Hoare annotation was computed. [2021-11-22 20:45:22,882 INFO L854 garLoopResultBuilder]: At program point L6890-1(lines 6889 6891) the Hoare annotation is: false [2021-11-22 20:45:22,882 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-22 20:45:22,882 INFO L858 garLoopResultBuilder]: For program point L9219-2(line 9219) no Hoare annotation was computed. [2021-11-22 20:45:22,883 INFO L858 garLoopResultBuilder]: For program point L9220(line 9220) no Hoare annotation was computed. [2021-11-22 20:45:22,883 INFO L858 garLoopResultBuilder]: For program point L9220-2(line 9220) no Hoare annotation was computed. [2021-11-22 20:45:22,883 INFO L858 garLoopResultBuilder]: For program point L9237(line 9237) no Hoare annotation was computed. [2021-11-22 20:45:22,883 INFO L858 garLoopResultBuilder]: For program point L9237-2(line 9237) no Hoare annotation was computed. [2021-11-22 20:45:22,883 INFO L858 garLoopResultBuilder]: For program point L9221(lines 9221 9223) no Hoare annotation was computed. [2021-11-22 20:45:22,883 INFO L858 garLoopResultBuilder]: For program point L6810(lines 6810 6811) no Hoare annotation was computed. [2021-11-22 20:45:22,883 INFO L858 garLoopResultBuilder]: For program point L6810-3(lines 6810 6811) no Hoare annotation was computed. [2021-11-22 20:45:22,883 INFO L858 garLoopResultBuilder]: For program point L6810-2(lines 6810 6811) no Hoare annotation was computed. [2021-11-22 20:45:22,884 INFO L858 garLoopResultBuilder]: For program point L6810-5(lines 6810 6811) no Hoare annotation was computed. [2021-11-22 20:45:22,884 INFO L858 garLoopResultBuilder]: For program point L9553-1(lines 9537 9559) no Hoare annotation was computed. [2021-11-22 20:45:22,884 INFO L858 garLoopResultBuilder]: For program point L222(lines 222 224) no Hoare annotation was computed. [2021-11-22 20:45:22,884 INFO L858 garLoopResultBuilder]: For program point L222-1(lines 222 224) no Hoare annotation was computed. [2021-11-22 20:45:22,884 INFO L858 garLoopResultBuilder]: For program point L9537(lines 9537 9559) no Hoare annotation was computed. [2021-11-22 20:45:22,884 INFO L858 garLoopResultBuilder]: For program point L222-2(lines 222 224) no Hoare annotation was computed. [2021-11-22 20:45:22,884 INFO L858 garLoopResultBuilder]: For program point L222-3(lines 222 224) no Hoare annotation was computed. [2021-11-22 20:45:22,884 INFO L858 garLoopResultBuilder]: For program point L222-4(lines 222 224) no Hoare annotation was computed. [2021-11-22 20:45:22,885 INFO L858 garLoopResultBuilder]: For program point L222-5(lines 222 224) no Hoare annotation was computed. [2021-11-22 20:45:22,885 INFO L858 garLoopResultBuilder]: For program point L9538(lines 9538 9539) no Hoare annotation was computed. [2021-11-22 20:45:22,885 INFO L858 garLoopResultBuilder]: For program point L9224(lines 9224 9228) no Hoare annotation was computed. [2021-11-22 20:45:22,885 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-22 20:45:22,885 INFO L858 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-11-22 20:45:22,885 INFO L858 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-11-22 20:45:22,885 INFO L858 garLoopResultBuilder]: For program point L9538-2(lines 9538 9539) no Hoare annotation was computed. [2021-11-22 20:45:22,885 INFO L858 garLoopResultBuilder]: For program point L223-3(line 223) no Hoare annotation was computed. [2021-11-22 20:45:22,885 INFO L858 garLoopResultBuilder]: For program point L223-4(line 223) no Hoare annotation was computed. [2021-11-22 20:45:22,886 INFO L858 garLoopResultBuilder]: For program point L223-6(line 223) no Hoare annotation was computed. [2021-11-22 20:45:22,886 INFO L858 garLoopResultBuilder]: For program point L223-7(line 223) no Hoare annotation was computed. [2021-11-22 20:45:22,886 INFO L858 garLoopResultBuilder]: For program point L223-9(line 223) no Hoare annotation was computed. [2021-11-22 20:45:22,886 INFO L858 garLoopResultBuilder]: For program point L223-10(line 223) no Hoare annotation was computed. [2021-11-22 20:45:22,886 INFO L858 garLoopResultBuilder]: For program point L223-12(line 223) no Hoare annotation was computed. [2021-11-22 20:45:22,886 INFO L858 garLoopResultBuilder]: For program point L223-13(line 223) no Hoare annotation was computed. [2021-11-22 20:45:22,886 INFO L858 garLoopResultBuilder]: For program point L223-15(line 223) no Hoare annotation was computed. [2021-11-22 20:45:22,886 INFO L858 garLoopResultBuilder]: For program point L223-16(line 223) no Hoare annotation was computed. [2021-11-22 20:45:22,887 INFO L858 garLoopResultBuilder]: For program point L9242(lines 9242 9244) no Hoare annotation was computed. [2021-11-22 20:45:22,887 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-22 20:45:22,887 INFO L854 garLoopResultBuilder]: At program point L6815-1(lines 6806 6816) the Hoare annotation is: false [2021-11-22 20:45:22,887 INFO L854 garLoopResultBuilder]: At program point L6815(lines 6806 6816) the Hoare annotation is: false [2021-11-22 20:45:22,887 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-22 20:45:22,887 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-22 20:45:22,887 INFO L858 garLoopResultBuilder]: For program point L210(lines 210 212) no Hoare annotation was computed. [2021-11-22 20:45:22,888 INFO L858 garLoopResultBuilder]: For program point L210-1(lines 210 212) no Hoare annotation was computed. [2021-11-22 20:45:22,888 INFO L858 garLoopResultBuilder]: For program point L210-2(lines 210 212) no Hoare annotation was computed. [2021-11-22 20:45:22,888 INFO L858 garLoopResultBuilder]: For program point L210-3(lines 210 212) no Hoare annotation was computed. [2021-11-22 20:45:22,888 INFO L858 garLoopResultBuilder]: For program point L210-4(lines 210 212) no Hoare annotation was computed. [2021-11-22 20:45:22,888 INFO L858 garLoopResultBuilder]: For program point L210-5(lines 210 212) no Hoare annotation was computed. [2021-11-22 20:45:22,888 INFO L858 garLoopResultBuilder]: For program point L210-6(lines 210 212) no Hoare annotation was computed. [2021-11-22 20:45:22,888 INFO L858 garLoopResultBuilder]: For program point L210-7(lines 210 212) no Hoare annotation was computed. [2021-11-22 20:45:22,888 INFO L858 garLoopResultBuilder]: For program point L210-8(lines 210 212) no Hoare annotation was computed. [2021-11-22 20:45:22,888 INFO L858 garLoopResultBuilder]: For program point L9542-1(lines 9542 9543) no Hoare annotation was computed. [2021-11-22 20:45:22,889 INFO L858 garLoopResultBuilder]: For program point L9542-3(lines 9542 9543) no Hoare annotation was computed. [2021-11-22 20:45:22,889 INFO L858 garLoopResultBuilder]: For program point L9542(lines 9542 9544) no Hoare annotation was computed. [2021-11-22 20:45:22,889 INFO L858 garLoopResultBuilder]: For program point L9245(lines 9245 9247) no Hoare annotation was computed. [2021-11-22 20:45:22,889 INFO L858 garLoopResultBuilder]: For program point L9542-5(lines 9542 9544) no Hoare annotation was computed. [2021-11-22 20:45:22,889 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-22 20:45:22,889 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-11-22 20:45:22,889 INFO L858 garLoopResultBuilder]: For program point L211-2(line 211) no Hoare annotation was computed. [2021-11-22 20:45:22,889 INFO L858 garLoopResultBuilder]: For program point L9229(lines 9229 9233) no Hoare annotation was computed. [2021-11-22 20:45:22,890 INFO L858 garLoopResultBuilder]: For program point L6256-2(line 6256) no Hoare annotation was computed. [2021-11-22 20:45:22,890 INFO L858 garLoopResultBuilder]: For program point L211-4(line 211) no Hoare annotation was computed. [2021-11-22 20:45:22,890 INFO L858 garLoopResultBuilder]: For program point L6256(line 6256) no Hoare annotation was computed. [2021-11-22 20:45:22,890 INFO L858 garLoopResultBuilder]: For program point L211-6(line 211) no Hoare annotation was computed. [2021-11-22 20:45:22,890 INFO L858 garLoopResultBuilder]: For program point L6256-5(line 6256) no Hoare annotation was computed. [2021-11-22 20:45:22,890 INFO L854 garLoopResultBuilder]: At program point L6256-6(lines 6252 6257) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.offset| |ULTIMATE.start_aws_string_compare_harness_#t~ite1354#1.offset|) (= |ULTIMATE.start_aws_string_compare_~b#1.offset| |ULTIMATE.start_aws_string_compare_~a#1.offset|) (= |ULTIMATE.start_aws_string_compare_harness_#t~ite1354#1.base| |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.base|) (= |ULTIMATE.start_aws_string_compare_harness_~str_b~1#1.base| 0) (= |ULTIMATE.start_aws_string_compare_harness_~str_b~1#1.offset| 0) (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.base| 0) (= |ULTIMATE.start_aws_string_compare_~a#1.base| |ULTIMATE.start_aws_string_compare_~b#1.base|) (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.offset| 0)) [2021-11-22 20:45:22,890 INFO L858 garLoopResultBuilder]: For program point L6256-3(line 6256) no Hoare annotation was computed. [2021-11-22 20:45:22,890 INFO L858 garLoopResultBuilder]: For program point L211-8(line 211) no Hoare annotation was computed. [2021-11-22 20:45:22,891 INFO L858 garLoopResultBuilder]: For program point L6256-9(line 6256) no Hoare annotation was computed. [2021-11-22 20:45:22,891 INFO L858 garLoopResultBuilder]: For program point L211-10(line 211) no Hoare annotation was computed. [2021-11-22 20:45:22,891 INFO L858 garLoopResultBuilder]: For program point L6256-10(line 6256) no Hoare annotation was computed. [2021-11-22 20:45:22,891 INFO L858 garLoopResultBuilder]: For program point L6256-7(line 6256) no Hoare annotation was computed. [2021-11-22 20:45:22,891 INFO L858 garLoopResultBuilder]: For program point L211-12(line 211) no Hoare annotation was computed. [2021-11-22 20:45:22,891 INFO L861 garLoopResultBuilder]: At program point L261(line 261) the Hoare annotation is: true [2021-11-22 20:45:22,891 INFO L854 garLoopResultBuilder]: At program point L6256-13(lines 6252 6257) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.offset| |ULTIMATE.start_aws_string_compare_harness_#t~ite1354#1.offset|) (not |ULTIMATE.start_aws_string_compare_#t~short1263#1|) (= |ULTIMATE.start_aws_string_compare_~b#1.offset| |ULTIMATE.start_aws_string_compare_~a#1.offset|) (= |ULTIMATE.start_aws_string_compare_harness_#t~ite1354#1.base| |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.base|) (= |ULTIMATE.start_aws_string_compare_harness_~str_b~1#1.base| 0) (= |ULTIMATE.start_aws_string_compare_harness_~str_b~1#1.offset| 0) (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.base| 0) (= |ULTIMATE.start_aws_string_compare_~a#1.base| |ULTIMATE.start_aws_string_compare_~b#1.base|) (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.offset| 0)) [2021-11-22 20:45:22,892 INFO L858 garLoopResultBuilder]: For program point L211-14(line 211) no Hoare annotation was computed. [2021-11-22 20:45:22,892 INFO L854 garLoopResultBuilder]: At program point L261-1(line 261) the Hoare annotation is: false [2021-11-22 20:45:22,892 INFO L858 garLoopResultBuilder]: For program point L6256-14(line 6256) no Hoare annotation was computed. [2021-11-22 20:45:22,892 INFO L854 garLoopResultBuilder]: At program point L261-2(line 261) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.base| 0) (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.offset| 0)) [2021-11-22 20:45:22,892 INFO L858 garLoopResultBuilder]: For program point L211-16(line 211) no Hoare annotation was computed. [2021-11-22 20:45:22,892 INFO L854 garLoopResultBuilder]: At program point L261-3(line 261) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.base| 0) (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.offset| 0)) [2021-11-22 20:45:22,892 INFO L858 garLoopResultBuilder]: For program point L6256-12(line 6256) no Hoare annotation was computed. [2021-11-22 20:45:22,892 INFO L854 garLoopResultBuilder]: At program point L261-4(line 261) the Hoare annotation is: false [2021-11-22 20:45:22,893 INFO L858 garLoopResultBuilder]: For program point L6256-17(line 6256) no Hoare annotation was computed. [2021-11-22 20:45:22,893 INFO L854 garLoopResultBuilder]: At program point L261-5(line 261) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_compare_harness_~str_b~1#1.base| 0) (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.base| 0) (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.offset| |ULTIMATE.start_aws_string_compare_harness_~str_b~1#1.offset|) (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.offset| 0)) [2021-11-22 20:45:22,893 INFO L858 garLoopResultBuilder]: For program point L6256-16(line 6256) no Hoare annotation was computed. [2021-11-22 20:45:22,893 INFO L858 garLoopResultBuilder]: For program point L6256-21(line 6256) no Hoare annotation was computed. [2021-11-22 20:45:22,893 INFO L858 garLoopResultBuilder]: For program point L7099(lines 7099 7112) no Hoare annotation was computed. [2021-11-22 20:45:22,893 INFO L858 garLoopResultBuilder]: For program point L6256-19(line 6256) no Hoare annotation was computed. [2021-11-22 20:45:22,893 INFO L854 garLoopResultBuilder]: At program point L6256-20(lines 6252 6257) the Hoare annotation is: false [2021-11-22 20:45:22,893 INFO L858 garLoopResultBuilder]: For program point L6256-26(line 6256) no Hoare annotation was computed. [2021-11-22 20:45:22,893 INFO L858 garLoopResultBuilder]: For program point L6256-23(line 6256) no Hoare annotation was computed. [2021-11-22 20:45:22,894 INFO L858 garLoopResultBuilder]: For program point L6256-24(line 6256) no Hoare annotation was computed. [2021-11-22 20:45:22,894 INFO L858 garLoopResultBuilder]: For program point L6256-30(line 6256) no Hoare annotation was computed. [2021-11-22 20:45:22,894 INFO L861 garLoopResultBuilder]: At program point L9560(line 9560) the Hoare annotation is: true [2021-11-22 20:45:22,894 INFO L854 garLoopResultBuilder]: At program point L6256-27(lines 6252 6257) the Hoare annotation is: false [2021-11-22 20:45:22,894 INFO L858 garLoopResultBuilder]: For program point L6256-28(line 6256) no Hoare annotation was computed. [2021-11-22 20:45:22,894 INFO L858 garLoopResultBuilder]: For program point L6256-33(line 6256) no Hoare annotation was computed. [2021-11-22 20:45:22,894 INFO L854 garLoopResultBuilder]: At program point L6256-34(lines 6252 6257) the Hoare annotation is: false [2021-11-22 20:45:22,894 INFO L858 garLoopResultBuilder]: For program point L6256-31(line 6256) no Hoare annotation was computed. [2021-11-22 20:45:22,894 INFO L858 garLoopResultBuilder]: For program point L6256-37(line 6256) no Hoare annotation was computed. [2021-11-22 20:45:22,895 INFO L858 garLoopResultBuilder]: For program point L6256-38(line 6256) no Hoare annotation was computed. [2021-11-22 20:45:22,895 INFO L858 garLoopResultBuilder]: For program point L6256-35(line 6256) no Hoare annotation was computed. [2021-11-22 20:45:22,895 INFO L854 garLoopResultBuilder]: At program point L6256-41(lines 6252 6257) the Hoare annotation is: false [2021-11-22 20:45:22,895 INFO L858 garLoopResultBuilder]: For program point L6256-42(line 6256) no Hoare annotation was computed. [2021-11-22 20:45:22,895 INFO L858 garLoopResultBuilder]: For program point L6256-40(line 6256) no Hoare annotation was computed. [2021-11-22 20:45:22,895 INFO L858 garLoopResultBuilder]: For program point L6256-45(line 6256) no Hoare annotation was computed. [2021-11-22 20:45:22,895 INFO L858 garLoopResultBuilder]: For program point L6256-44(line 6256) no Hoare annotation was computed. [2021-11-22 20:45:22,895 INFO L858 garLoopResultBuilder]: For program point L6256-49(line 6256) no Hoare annotation was computed. [2021-11-22 20:45:22,896 INFO L858 garLoopResultBuilder]: For program point L6256-47(line 6256) no Hoare annotation was computed. [2021-11-22 20:45:22,896 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-22 20:45:22,896 INFO L854 garLoopResultBuilder]: At program point L6256-48(lines 6252 6257) the Hoare annotation is: false [2021-11-22 20:45:22,896 INFO L858 garLoopResultBuilder]: For program point L6256-54(line 6256) no Hoare annotation was computed. [2021-11-22 20:45:22,896 INFO L858 garLoopResultBuilder]: For program point L6256-51(line 6256) no Hoare annotation was computed. [2021-11-22 20:45:22,896 INFO L858 garLoopResultBuilder]: For program point L6256-52(line 6256) no Hoare annotation was computed. [2021-11-22 20:45:22,896 INFO L854 garLoopResultBuilder]: At program point L6256-55(lines 6252 6257) the Hoare annotation is: false [2021-11-22 20:45:22,896 INFO L854 garLoopResultBuilder]: At program point L6803-1(lines 6800 6804) the Hoare annotation is: false [2021-11-22 20:45:22,897 INFO L854 garLoopResultBuilder]: At program point L6803(lines 6800 6804) the Hoare annotation is: false [2021-11-22 20:45:22,897 INFO L854 garLoopResultBuilder]: At program point L6886(lines 6882 6887) the Hoare annotation is: false [2021-11-22 20:45:22,897 INFO L854 garLoopResultBuilder]: At program point L6886-1(lines 6882 6887) the Hoare annotation is: false [2021-11-22 20:45:22,897 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-22 20:45:22,897 INFO L858 garLoopResultBuilder]: For program point L9248(lines 9248 9250) no Hoare annotation was computed. [2021-11-22 20:45:22,897 INFO L858 garLoopResultBuilder]: For program point L7101(lines 7101 7111) no Hoare annotation was computed. [2021-11-22 20:45:22,897 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-22 20:45:22,897 INFO L858 garLoopResultBuilder]: For program point L9548(line 9548) no Hoare annotation was computed. [2021-11-22 20:45:22,898 INFO L858 garLoopResultBuilder]: For program point L9548-2(line 9548) no Hoare annotation was computed. [2021-11-22 20:45:22,898 INFO L854 garLoopResultBuilder]: At program point L266(line 266) the Hoare annotation is: (= 16 |ULTIMATE.start_ensure_string_is_allocated_bounded_length_~max_size#1|) [2021-11-22 20:45:22,898 INFO L854 garLoopResultBuilder]: At program point L266-1(line 266) the Hoare annotation is: (and (= 16 |ULTIMATE.start_ensure_string_is_allocated_bounded_length_~max_size#1|) (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.base| 0) (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.offset| 0)) [2021-11-22 20:45:22,898 INFO L854 garLoopResultBuilder]: At program point L266-2(line 266) the Hoare annotation is: false [2021-11-22 20:45:22,898 INFO L854 garLoopResultBuilder]: At program point L9251(lines 9218 9252) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_compare_harness_~str_b~1#1.base| 0) (= |ULTIMATE.start_aws_string_compare_harness_~str_b~1#1.offset| 0) (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.base| 0) (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.offset| 0)) [2021-11-22 20:45:22,898 INFO L858 garLoopResultBuilder]: For program point L9548-3(lines 9548 9552) no Hoare annotation was computed. [2021-11-22 20:45:22,898 INFO L858 garLoopResultBuilder]: For program point L9548-4(lines 9537 9559) no Hoare annotation was computed. [2021-11-22 20:45:22,899 INFO L854 garLoopResultBuilder]: At program point L6245(lines 6242 6246) the Hoare annotation is: false [2021-11-22 20:45:22,899 INFO L854 garLoopResultBuilder]: At program point L6245-1(lines 6242 6246) the Hoare annotation is: false [2021-11-22 20:45:22,901 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 20:45:22,902 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-22 20:45:22,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 08:45:22 BoogieIcfgContainer [2021-11-22 20:45:22,914 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-22 20:45:22,914 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 20:45:22,914 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 20:45:22,914 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 20:45:22,915 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 08:45:19" (3/4) ... [2021-11-22 20:45:22,917 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-22 20:45:22,932 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 171 nodes and edges [2021-11-22 20:45:22,933 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 57 nodes and edges [2021-11-22 20:45:22,934 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2021-11-22 20:45:22,935 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-11-22 20:45:22,936 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-11-22 20:45:22,937 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-22 20:45:22,939 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-22 20:45:22,940 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-22 20:45:23,577 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-11-22 20:45:23,579 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 20:45:23,579 INFO L158 Benchmark]: Toolchain (without parser) took 6775.55ms. Allocated memory was 98.6MB in the beginning and 318.8MB in the end (delta: 220.2MB). Free memory was 58.3MB in the beginning and 203.5MB in the end (delta: -145.2MB). Peak memory consumption was 220.0MB. Max. memory is 16.1GB. [2021-11-22 20:45:23,580 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 98.6MB. Free memory was 54.5MB in the beginning and 54.4MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 20:45:23,580 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1636.65ms. Allocated memory was 98.6MB in the beginning and 199.2MB in the end (delta: 100.7MB). Free memory was 58.0MB in the beginning and 120.9MB in the end (delta: -62.9MB). Peak memory consumption was 71.9MB. Max. memory is 16.1GB. [2021-11-22 20:45:23,580 INFO L158 Benchmark]: Boogie Procedure Inliner took 141.34ms. Allocated memory is still 199.2MB. Free memory was 120.9MB in the beginning and 108.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-22 20:45:23,580 INFO L158 Benchmark]: Boogie Preprocessor took 74.80ms. Allocated memory is still 199.2MB. Free memory was 108.3MB in the beginning and 101.0MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-22 20:45:23,580 INFO L158 Benchmark]: RCFGBuilder took 1022.97ms. Allocated memory is still 199.2MB. Free memory was 101.0MB in the beginning and 136.2MB in the end (delta: -35.2MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. [2021-11-22 20:45:23,581 INFO L158 Benchmark]: TraceAbstraction took 3228.33ms. Allocated memory was 199.2MB in the beginning and 260.0MB in the end (delta: 60.8MB). Free memory was 135.2MB in the beginning and 130.2MB in the end (delta: 5.0MB). Peak memory consumption was 64.7MB. Max. memory is 16.1GB. [2021-11-22 20:45:23,581 INFO L158 Benchmark]: Witness Printer took 664.81ms. Allocated memory was 260.0MB in the beginning and 318.8MB in the end (delta: 58.7MB). Free memory was 129.1MB in the beginning and 203.5MB in the end (delta: -74.3MB). Peak memory consumption was 130.1MB. Max. memory is 16.1GB. [2021-11-22 20:45:23,582 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 98.6MB. Free memory was 54.5MB in the beginning and 54.4MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1636.65ms. Allocated memory was 98.6MB in the beginning and 199.2MB in the end (delta: 100.7MB). Free memory was 58.0MB in the beginning and 120.9MB in the end (delta: -62.9MB). Peak memory consumption was 71.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 141.34ms. Allocated memory is still 199.2MB. Free memory was 120.9MB in the beginning and 108.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.80ms. Allocated memory is still 199.2MB. Free memory was 108.3MB in the beginning and 101.0MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1022.97ms. Allocated memory is still 199.2MB. Free memory was 101.0MB in the beginning and 136.2MB in the end (delta: -35.2MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. * TraceAbstraction took 3228.33ms. Allocated memory was 199.2MB in the beginning and 260.0MB in the end (delta: 60.8MB). Free memory was 135.2MB in the beginning and 130.2MB in the end (delta: 5.0MB). Peak memory consumption was 64.7MB. Max. memory is 16.1GB. * Witness Printer took 664.81ms. Allocated memory was 260.0MB in the beginning and 318.8MB in the end (delta: 58.7MB). Free memory was 129.1MB in the beginning and 203.5MB in the end (delta: -74.3MB). Peak memory consumption was 130.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s 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 - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - 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 1 procedures, 138 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 3.2s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2443 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2443 mSDsluCounter, 7046 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5717 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 667 IncrementalHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 1329 mSDtfsCounter, 667 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=392occurred in iteration=5, InterpolantAutomatonStates: 77, 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, 8 MinimizatonAttempts, 202 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 29 LocationsWithAnnotation, 29 PreInvPairs, 40 NumberOfFragments, 126 HoareAnnotationTreeSize, 29 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 29 FomulaSimplificationsInter, 89 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 307 NumberOfCodeBlocks, 307 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 299 ConstructedInterpolants, 0 QuantifiedInterpolants, 880 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 6252]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6806]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6242]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6252]: Loop Invariant Derived loop invariant: (((((((str_a == nondet_parameter ? str_b : str_a && !aux-!b || aws_string_is_valid(b)-aux) && b == a) && nondet_parameter ? str_b : str_a == str_a) && str_b == 0) && str_b == 0) && str_a == 0) && a == b) && str_a == 0 - InvariantResult [Line: 6882]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6806]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: ((str_b == 0 && str_a == 0) && str_a == str_b) && str_a == 0 - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: 16 == max_size - InvariantResult [Line: 6889]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: str_a == 0 && str_a == 0 - InvariantResult [Line: 6252]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6252]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 9218]: Loop Invariant Derived loop invariant: ((str_b == 0 && str_b == 0) && str_a == 0) && str_a == 0 - InvariantResult [Line: 6252]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6882]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6252]: Loop Invariant Derived loop invariant: ((((((str_a == nondet_parameter ? str_b : str_a && b == a) && nondet_parameter ? str_b : str_a == str_a) && str_b == 0) && str_b == 0) && str_a == 0) && a == b) && str_a == 0 - InvariantResult [Line: 6252]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6800]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6800]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6889]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: (16 == max_size && str_a == 0) && str_a == 0 - InvariantResult [Line: 6242]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: str_a == 0 && str_a == 0 - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6252]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 9560]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-22 20:45:23,625 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE