./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 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_destroy_secure_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 bc5ed5fb850d9a2c9d9a14514ffc7939afe81a277edfb59aefd3c5f66024eda8 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 14:03:49,308 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 14:03:49,311 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 14:03:49,359 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 14:03:49,359 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 14:03:49,362 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 14:03:49,364 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 14:03:49,366 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 14:03:49,368 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 14:03:49,371 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 14:03:49,372 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 14:03:49,373 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 14:03:49,373 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 14:03:49,375 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 14:03:49,376 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 14:03:49,379 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 14:03:49,380 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 14:03:49,381 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 14:03:49,382 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 14:03:49,391 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 14:03:49,392 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 14:03:49,393 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 14:03:49,394 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 14:03:49,395 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 14:03:49,399 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 14:03:49,399 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 14:03:49,399 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 14:03:49,401 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 14:03:49,401 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 14:03:49,402 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 14:03:49,402 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 14:03:49,402 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 14:03:49,403 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 14:03:49,403 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 14:03:49,404 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 14:03:49,404 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 14:03:49,404 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 14:03:49,404 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 14:03:49,404 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 14:03:49,405 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 14:03:49,405 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 14:03:49,407 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 14:03:49,431 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 14:03:49,431 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 14:03:49,431 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 14:03:49,432 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 14:03:49,432 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 14:03:49,433 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 14:03:49,433 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 14:03:49,433 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 14:03:49,433 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 14:03:49,434 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 14:03:49,434 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 14:03:49,434 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 14:03:49,435 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 14:03:49,435 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 14:03:49,435 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 14:03:49,435 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 14:03:49,435 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 14:03:49,436 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 14:03:49,436 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 14:03:49,436 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 14:03:49,436 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 14:03:49,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:03:49,436 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 14:03:49,437 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 14:03:49,437 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 14:03:49,437 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 14:03:49,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 14:03:49,438 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 14:03:49,438 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 14:03:49,438 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 14:03:49,439 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 14:03:49,439 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc5ed5fb850d9a2c9d9a14514ffc7939afe81a277edfb59aefd3c5f66024eda8 [2021-12-22 14:03:49,623 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 14:03:49,640 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 14:03:49,642 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 14:03:49,643 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 14:03:49,644 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 14:03:49,645 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i [2021-12-22 14:03:49,694 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9112405b/d1f57a8ebcfd43db96787d23f45a44f6/FLAG5275eb5aa [2021-12-22 14:03:50,322 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 14:03:50,322 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness.i [2021-12-22 14:03:50,366 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9112405b/d1f57a8ebcfd43db96787d23f45a44f6/FLAG5275eb5aa [2021-12-22 14:03:50,432 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9112405b/d1f57a8ebcfd43db96787d23f45a44f6 [2021-12-22 14:03:50,435 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 14:03:50,436 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 14:03:50,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 14:03:50,439 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 14:03:50,442 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 14:03:50,442 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:03:50" (1/1) ... [2021-12-22 14:03:50,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f4b843c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:03:50, skipping insertion in model container [2021-12-22 14:03:50,444 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:03:50" (1/1) ... [2021-12-22 14:03:50,450 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 14:03:50,541 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 14:03:50,783 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_destroy_secure_harness.i[4499,4512] [2021-12-22 14:03:50,789 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_destroy_secure_harness.i[4559,4572] [2021-12-22 14:03:51,372 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:03:51,373 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:03:51,373 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:03:51,374 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:03:51,375 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:03:51,384 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:03:51,386 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:03:51,388 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:03:51,389 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:03:51,708 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-22 14:03:51,710 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-22 14:03:51,711 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-22 14:03:51,712 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-22 14:03:51,716 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-22 14:03:51,719 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-22 14:03:51,720 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-22 14:03:51,720 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-22 14:03:51,722 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-22 14:03:51,723 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-22 14:03:51,845 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-22 14:03:51,931 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:03:51,932 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:03:51,998 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:03:52,057 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 14:03:52,068 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_destroy_secure_harness.i[4499,4512] [2021-12-22 14:03:52,069 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_destroy_secure_harness.i[4559,4572] [2021-12-22 14:03:52,094 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:03:52,095 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:03:52,095 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:03:52,095 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:03:52,096 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:03:52,100 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:03:52,100 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:03:52,101 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:03:52,101 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:03:52,135 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-22 14:03:52,136 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-22 14:03:52,136 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-22 14:03:52,137 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-22 14:03:52,137 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-22 14:03:52,138 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-22 14:03:52,138 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-22 14:03:52,138 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-22 14:03:52,138 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-22 14:03:52,139 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-22 14:03:52,152 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-22 14:03:52,202 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:03:52,204 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-22 14:03:52,263 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:03:52,473 INFO L208 MainTranslator]: Completed translation [2021-12-22 14:03:52,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:03:52 WrapperNode [2021-12-22 14:03:52,474 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 14:03:52,475 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 14:03:52,475 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 14:03:52,475 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 14:03:52,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:03:52" (1/1) ... [2021-12-22 14:03:52,584 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:03:52" (1/1) ... [2021-12-22 14:03:52,689 INFO L137 Inliner]: procedures = 693, calls = 2772, calls flagged for inlining = 60, calls inlined = 8, statements flattened = 812 [2021-12-22 14:03:52,689 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 14:03:52,703 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 14:03:52,704 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 14:03:52,704 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 14:03:52,717 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:03:52" (1/1) ... [2021-12-22 14:03:52,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:03:52" (1/1) ... [2021-12-22 14:03:52,723 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:03:52" (1/1) ... [2021-12-22 14:03:52,752 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:03:52" (1/1) ... [2021-12-22 14:03:52,788 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:03:52" (1/1) ... [2021-12-22 14:03:52,792 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:03:52" (1/1) ... [2021-12-22 14:03:52,797 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:03:52" (1/1) ... [2021-12-22 14:03:52,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 14:03:52,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 14:03:52,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 14:03:52,820 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 14:03:52,823 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:03:52" (1/1) ... [2021-12-22 14:03:52,829 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:03:52,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:03:52,856 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-22 14:03:52,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-22 14:03:52,885 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2021-12-22 14:03:52,885 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2021-12-22 14:03:52,885 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2021-12-22 14:03:52,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2021-12-22 14:03:52,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 14:03:52,885 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-12-22 14:03:52,886 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-12-22 14:03:52,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 14:03:52,886 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-22 14:03:52,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-22 14:03:52,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 14:03:52,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 14:03:52,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 14:03:52,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 14:03:52,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 14:03:52,888 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-12-22 14:03:52,888 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-12-22 14:03:52,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 14:03:52,888 INFO L130 BoogieDeclarations]: Found specification of procedure aws_secure_zero [2021-12-22 14:03:52,888 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_secure_zero [2021-12-22 14:03:52,888 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2021-12-22 14:03:52,889 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2021-12-22 14:03:52,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-22 14:03:52,889 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-22 14:03:52,889 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2021-12-22 14:03:52,889 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2021-12-22 14:03:52,889 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-22 14:03:52,889 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-22 14:03:52,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 14:03:52,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 14:03:52,890 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-12-22 14:03:52,890 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-12-22 14:03:52,890 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-12-22 14:03:52,890 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-12-22 14:03:52,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 14:03:52,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 14:03:53,063 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 14:03:53,064 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 14:03:53,968 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 14:03:53,977 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 14:03:53,977 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 14:03:53,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:03:53 BoogieIcfgContainer [2021-12-22 14:03:53,980 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 14:03:53,981 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 14:03:53,981 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 14:03:53,984 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 14:03:53,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:03:50" (1/3) ... [2021-12-22 14:03:53,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@473f3231 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:03:53, skipping insertion in model container [2021-12-22 14:03:53,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:03:52" (2/3) ... [2021-12-22 14:03:53,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@473f3231 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:03:53, skipping insertion in model container [2021-12-22 14:03:53,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:03:53" (3/3) ... [2021-12-22 14:03:53,988 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_string_destroy_secure_harness.i [2021-12-22 14:03:53,994 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 14:03:53,995 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 14:03:54,043 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 14:03:54,053 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-22 14:03:54,054 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 14:03:54,074 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 70 states have (on average 1.2) internal successors, (84), 71 states have internal predecessors, (84), 20 states have call successors, (20), 12 states have call predecessors, (20), 12 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-12-22 14:03:54,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-22 14:03:54,083 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:03:54,083 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:03:54,084 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:03:54,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:03:54,089 INFO L85 PathProgramCache]: Analyzing trace with hash 513295118, now seen corresponding path program 1 times [2021-12-22 14:03:54,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:03:54,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462523612] [2021-12-22 14:03:54,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:03:54,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:03:54,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:54,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:03:54,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:54,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:03:54,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:54,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:03:54,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:54,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 14:03:54,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:54,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:03:54,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:54,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 14:03:54,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:54,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 14:03:54,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:54,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:03:54,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:54,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-22 14:03:54,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:54,736 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-22 14:03:54,737 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:03:54,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462523612] [2021-12-22 14:03:54,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462523612] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:03:54,738 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:03:54,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 14:03:54,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198518124] [2021-12-22 14:03:54,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:03:54,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 14:03:54,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:03:54,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 14:03:54,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-22 14:03:54,774 INFO L87 Difference]: Start difference. First operand has 104 states, 70 states have (on average 1.2) internal successors, (84), 71 states have internal predecessors, (84), 20 states have call successors, (20), 12 states have call predecessors, (20), 12 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-22 14:03:55,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:03:55,013 INFO L93 Difference]: Finished difference Result 209 states and 259 transitions. [2021-12-22 14:03:55,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 14:03:55,016 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 65 [2021-12-22 14:03:55,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:03:55,023 INFO L225 Difference]: With dead ends: 209 [2021-12-22 14:03:55,023 INFO L226 Difference]: Without dead ends: 103 [2021-12-22 14:03:55,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-22 14:03:55,028 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 85 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-22 14:03:55,029 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 150 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-22 14:03:55,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-12-22 14:03:55,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 95. [2021-12-22 14:03:55,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 63 states have (on average 1.1428571428571428) internal successors, (72), 63 states have internal predecessors, (72), 20 states have call successors, (20), 12 states have call predecessors, (20), 11 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-12-22 14:03:55,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 111 transitions. [2021-12-22 14:03:55,066 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 111 transitions. Word has length 65 [2021-12-22 14:03:55,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:03:55,067 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 111 transitions. [2021-12-22 14:03:55,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-22 14:03:55,068 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 111 transitions. [2021-12-22 14:03:55,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-22 14:03:55,070 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:03:55,070 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:03:55,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 14:03:55,071 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:03:55,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:03:55,071 INFO L85 PathProgramCache]: Analyzing trace with hash 702801866, now seen corresponding path program 1 times [2021-12-22 14:03:55,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:03:55,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479132146] [2021-12-22 14:03:55,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:03:55,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:03:55,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:55,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:03:55,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:55,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:03:55,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:55,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:03:55,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:55,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 14:03:55,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:55,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:03:55,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:55,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 14:03:55,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:55,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 14:03:55,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:55,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:03:55,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:55,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-22 14:03:55,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:55,804 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-22 14:03:55,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:03:55,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479132146] [2021-12-22 14:03:55,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479132146] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:03:55,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2078164546] [2021-12-22 14:03:55,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:03:55,807 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:03:55,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:03:55,808 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 14:03:55,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-22 14:03:56,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:56,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 2546 conjuncts, 23 conjunts are in the unsatisfiable core [2021-12-22 14:03:56,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 14:03:56,533 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-22 14:03:56,534 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 14:03:56,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2078164546] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:03:56,534 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 14:03:56,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [17] total 22 [2021-12-22 14:03:56,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274298613] [2021-12-22 14:03:56,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:03:56,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-22 14:03:56,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:03:56,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-22 14:03:56,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=416, Unknown=0, NotChecked=0, Total=462 [2021-12-22 14:03:56,538 INFO L87 Difference]: Start difference. First operand 95 states and 111 transitions. Second operand has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 9 states have internal predecessors, (40), 4 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) [2021-12-22 14:03:56,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:03:56,699 INFO L93 Difference]: Finished difference Result 136 states and 161 transitions. [2021-12-22 14:03:56,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-22 14:03:56,700 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 9 states have internal predecessors, (40), 4 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) Word has length 65 [2021-12-22 14:03:56,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:03:56,701 INFO L225 Difference]: With dead ends: 136 [2021-12-22 14:03:56,702 INFO L226 Difference]: Without dead ends: 117 [2021-12-22 14:03:56,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=71, Invalid=631, Unknown=0, NotChecked=0, Total=702 [2021-12-22 14:03:56,703 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 54 mSDsluCounter, 1036 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 1161 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-22 14:03:56,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 1161 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-22 14:03:56,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-12-22 14:03:56,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 102. [2021-12-22 14:03:56,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 68 states have (on average 1.1470588235294117) internal successors, (78), 68 states have internal predecessors, (78), 22 states have call successors, (22), 12 states have call predecessors, (22), 11 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2021-12-22 14:03:56,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 121 transitions. [2021-12-22 14:03:56,715 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 121 transitions. Word has length 65 [2021-12-22 14:03:56,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:03:56,716 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 121 transitions. [2021-12-22 14:03:56,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 9 states have internal predecessors, (40), 4 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) [2021-12-22 14:03:56,716 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 121 transitions. [2021-12-22 14:03:56,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-22 14:03:56,717 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:03:56,718 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:03:56,747 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-22 14:03:56,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:03:56,936 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:03:56,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:03:56,936 INFO L85 PathProgramCache]: Analyzing trace with hash 193328776, now seen corresponding path program 1 times [2021-12-22 14:03:56,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:03:56,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686837862] [2021-12-22 14:03:56,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:03:56,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:03:56,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:57,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:03:57,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:57,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:03:57,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:57,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:03:57,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:57,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 14:03:57,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:57,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:03:57,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:57,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 14:03:57,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:57,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 14:03:57,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:57,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:03:57,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:57,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-22 14:03:57,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:57,177 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-22 14:03:57,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:03:57,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686837862] [2021-12-22 14:03:57,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686837862] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:03:57,178 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:03:57,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 14:03:57,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747253096] [2021-12-22 14:03:57,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:03:57,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 14:03:57,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:03:57,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 14:03:57,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-22 14:03:57,180 INFO L87 Difference]: Start difference. First operand 102 states and 121 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-12-22 14:03:57,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:03:57,388 INFO L93 Difference]: Finished difference Result 136 states and 161 transitions. [2021-12-22 14:03:57,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 14:03:57,388 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 65 [2021-12-22 14:03:57,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:03:57,390 INFO L225 Difference]: With dead ends: 136 [2021-12-22 14:03:57,390 INFO L226 Difference]: Without dead ends: 103 [2021-12-22 14:03:57,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-22 14:03:57,391 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 89 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-22 14:03:57,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 209 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-22 14:03:57,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-12-22 14:03:57,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 95. [2021-12-22 14:03:57,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 63 states have (on average 1.1111111111111112) internal successors, (70), 63 states have internal predecessors, (70), 20 states have call successors, (20), 12 states have call predecessors, (20), 11 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-12-22 14:03:57,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 109 transitions. [2021-12-22 14:03:57,401 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 109 transitions. Word has length 65 [2021-12-22 14:03:57,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:03:57,401 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 109 transitions. [2021-12-22 14:03:57,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-12-22 14:03:57,401 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 109 transitions. [2021-12-22 14:03:57,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-22 14:03:57,403 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:03:57,403 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:03:57,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 14:03:57,403 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:03:57,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:03:57,404 INFO L85 PathProgramCache]: Analyzing trace with hash -216705520, now seen corresponding path program 1 times [2021-12-22 14:03:57,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:03:57,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208863894] [2021-12-22 14:03:57,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:03:57,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:03:57,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:57,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:03:57,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:57,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:03:57,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:57,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:03:57,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:57,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 14:03:57,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:57,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:03:57,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:57,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 14:03:57,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:57,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 14:03:57,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:57,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 14:03:57,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:57,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:03:57,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:57,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-22 14:03:57,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:57,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 14:03:57,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:57,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:03:57,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:57,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-22 14:03:57,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:57,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-22 14:03:57,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:57,978 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-12-22 14:03:57,978 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:03:57,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208863894] [2021-12-22 14:03:57,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208863894] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:03:57,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829125792] [2021-12-22 14:03:57,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:03:57,979 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:03:57,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:03:57,981 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 14:03:57,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-22 14:03:58,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:58,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 2658 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-22 14:03:58,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 14:03:58,686 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-22 14:03:58,686 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 14:03:58,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829125792] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:03:58,687 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 14:03:58,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [18] total 20 [2021-12-22 14:03:58,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583159008] [2021-12-22 14:03:58,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:03:58,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 14:03:58,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:03:58,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 14:03:58,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2021-12-22 14:03:58,689 INFO L87 Difference]: Start difference. First operand 95 states and 109 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-22 14:03:58,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:03:58,736 INFO L93 Difference]: Finished difference Result 154 states and 176 transitions. [2021-12-22 14:03:58,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 14:03:58,737 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 96 [2021-12-22 14:03:58,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:03:58,738 INFO L225 Difference]: With dead ends: 154 [2021-12-22 14:03:58,738 INFO L226 Difference]: Without dead ends: 95 [2021-12-22 14:03:58,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=373, Unknown=0, NotChecked=0, Total=420 [2021-12-22 14:03:58,740 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 2 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 14:03:58,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 309 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 14:03:58,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-12-22 14:03:58,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2021-12-22 14:03:58,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 63 states have (on average 1.0952380952380953) internal successors, (69), 63 states have internal predecessors, (69), 20 states have call successors, (20), 12 states have call predecessors, (20), 11 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-12-22 14:03:58,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 108 transitions. [2021-12-22 14:03:58,748 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 108 transitions. Word has length 96 [2021-12-22 14:03:58,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:03:58,748 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 108 transitions. [2021-12-22 14:03:58,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-22 14:03:58,749 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 108 transitions. [2021-12-22 14:03:58,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-12-22 14:03:58,750 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:03:58,750 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:03:58,782 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-22 14:03:58,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-12-22 14:03:58,974 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:03:58,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:03:58,975 INFO L85 PathProgramCache]: Analyzing trace with hash 91273307, now seen corresponding path program 1 times [2021-12-22 14:03:58,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:03:58,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744405391] [2021-12-22 14:03:58,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:03:58,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:03:59,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:59,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:03:59,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:59,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:03:59,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:59,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:03:59,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:59,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 14:03:59,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:59,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:03:59,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:59,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 14:03:59,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:59,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 14:03:59,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:59,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-22 14:03:59,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:59,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-22 14:03:59,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:59,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:03:59,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:59,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-22 14:03:59,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:59,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-22 14:03:59,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:59,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:03:59,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:59,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-22 14:03:59,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:59,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-22 14:03:59,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:03:59,567 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-12-22 14:03:59,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:03:59,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744405391] [2021-12-22 14:03:59,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744405391] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:03:59,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978325736] [2021-12-22 14:03:59,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:03:59,568 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:03:59,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:03:59,572 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 14:03:59,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-22 14:04:00,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:00,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 2686 conjuncts, 78 conjunts are in the unsatisfiable core [2021-12-22 14:04:00,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 14:04:00,280 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 52 [2021-12-22 14:04:00,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-22 14:04:00,301 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 26 [2021-12-22 14:04:00,337 INFO L353 Elim1Store]: treesize reduction 27, result has 41.3 percent of original size [2021-12-22 14:04:00,338 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 32 [2021-12-22 14:04:02,601 INFO L353 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2021-12-22 14:04:02,601 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 97 treesize of output 63 [2021-12-22 14:04:02,914 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 35 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-22 14:04:02,914 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 14:04:03,767 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-12-22 14:04:03,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [978325736] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-22 14:04:03,767 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-12-22 14:04:03,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [14, 20] total 38 [2021-12-22 14:04:03,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281792602] [2021-12-22 14:04:03,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:04:03,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-22 14:04:03,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:04:03,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-22 14:04:03,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=1308, Unknown=0, NotChecked=0, Total=1406 [2021-12-22 14:04:03,769 INFO L87 Difference]: Start difference. First operand 95 states and 108 transitions. Second operand has 12 states, 10 states have (on average 5.4) internal successors, (54), 12 states have internal predecessors, (54), 5 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2021-12-22 14:04:04,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:04:04,157 INFO L93 Difference]: Finished difference Result 124 states and 139 transitions. [2021-12-22 14:04:04,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-22 14:04:04,158 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.4) internal successors, (54), 12 states have internal predecessors, (54), 5 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 105 [2021-12-22 14:04:04,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:04:04,159 INFO L225 Difference]: With dead ends: 124 [2021-12-22 14:04:04,159 INFO L226 Difference]: Without dead ends: 96 [2021-12-22 14:04:04,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 202 SyntacticMatches, 9 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=130, Invalid=1592, Unknown=0, NotChecked=0, Total=1722 [2021-12-22 14:04:04,161 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 41 mSDsluCounter, 825 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-22 14:04:04,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 925 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-22 14:04:04,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-12-22 14:04:04,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2021-12-22 14:04:04,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 64 states have (on average 1.09375) internal successors, (70), 64 states have internal predecessors, (70), 20 states have call successors, (20), 12 states have call predecessors, (20), 11 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-12-22 14:04:04,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 109 transitions. [2021-12-22 14:04:04,170 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 109 transitions. Word has length 105 [2021-12-22 14:04:04,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:04:04,170 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 109 transitions. [2021-12-22 14:04:04,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.4) internal successors, (54), 12 states have internal predecessors, (54), 5 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2021-12-22 14:04:04,171 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 109 transitions. [2021-12-22 14:04:04,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-22 14:04:04,172 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:04:04,172 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:04:04,194 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-22 14:04:04,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:04:04,379 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:04:04,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:04:04,380 INFO L85 PathProgramCache]: Analyzing trace with hash 469333189, now seen corresponding path program 1 times [2021-12-22 14:04:04,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:04:04,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757495393] [2021-12-22 14:04:04,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:04:04,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:04:04,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:04,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:04:04,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:04,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:04:04,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:04,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:04:04,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:04,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-22 14:04:04,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:04,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:04:04,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:04,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 14:04:04,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:04,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 14:04:04,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:04,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-22 14:04:04,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:04,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-22 14:04:04,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:04,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:04:04,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:04,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-22 14:04:04,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:04,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-22 14:04:04,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:04,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:04:04,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:04,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-22 14:04:04,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:04,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-22 14:04:04,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:04,864 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-22 14:04:04,864 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:04:04,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757495393] [2021-12-22 14:04:04,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757495393] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:04:04,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951150924] [2021-12-22 14:04:04,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:04:04,865 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:04:04,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:04:04,866 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 14:04:04,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-22 14:04:05,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:05,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 2705 conjuncts, 196 conjunts are in the unsatisfiable core [2021-12-22 14:04:05,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 14:04:05,720 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 60 [2021-12-22 14:04:05,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-22 14:04:05,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-22 14:04:05,745 INFO L353 Elim1Store]: treesize reduction 25, result has 40.5 percent of original size [2021-12-22 14:04:05,745 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 73 [2021-12-22 14:04:05,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-22 14:04:05,775 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 11 [2021-12-22 14:04:05,834 INFO L353 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-12-22 14:04:05,835 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 86 treesize of output 59 [2021-12-22 14:04:09,186 INFO L353 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-12-22 14:04:09,186 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 30 [2021-12-22 14:04:09,366 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-22 14:04:10,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-22 14:04:10,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-22 14:04:10,469 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-22 14:04:10,472 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-22 14:04:10,472 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 31 [2021-12-22 14:04:10,631 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 27 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-22 14:04:10,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 14:04:11,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951150924] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:04:11,744 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-22 14:04:11,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 44] total 55 [2021-12-22 14:04:11,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987274371] [2021-12-22 14:04:11,744 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-22 14:04:11,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2021-12-22 14:04:11,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:04:11,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2021-12-22 14:04:11,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=3372, Unknown=0, NotChecked=0, Total=3540 [2021-12-22 14:04:11,747 INFO L87 Difference]: Start difference. First operand 96 states and 109 transitions. Second operand has 55 states, 46 states have (on average 2.4565217391304346) internal successors, (113), 40 states have internal predecessors, (113), 17 states have call successors, (32), 8 states have call predecessors, (32), 14 states have return successors, (30), 20 states have call predecessors, (30), 16 states have call successors, (30) [2021-12-22 14:04:13,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:04:13,139 INFO L93 Difference]: Finished difference Result 103 states and 114 transitions. [2021-12-22 14:04:13,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-22 14:04:13,147 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 46 states have (on average 2.4565217391304346) internal successors, (113), 40 states have internal predecessors, (113), 17 states have call successors, (32), 8 states have call predecessors, (32), 14 states have return successors, (30), 20 states have call predecessors, (30), 16 states have call successors, (30) Word has length 106 [2021-12-22 14:04:13,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:04:13,147 INFO L225 Difference]: With dead ends: 103 [2021-12-22 14:04:13,147 INFO L226 Difference]: Without dead ends: 0 [2021-12-22 14:04:13,150 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 85 SyntacticMatches, 7 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1287 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=281, Invalid=4831, Unknown=0, NotChecked=0, Total=5112 [2021-12-22 14:04:13,151 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 65 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 1048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 212 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-22 14:04:13,151 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 425 Invalid, 1048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 780 Invalid, 0 Unknown, 212 Unchecked, 0.6s Time] [2021-12-22 14:04:13,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-22 14:04:13,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-22 14:04:13,152 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) [2021-12-22 14:04:13,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-22 14:04:13,153 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 106 [2021-12-22 14:04:13,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:04:13,153 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-22 14:04:13,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 46 states have (on average 2.4565217391304346) internal successors, (113), 40 states have internal predecessors, (113), 17 states have call successors, (32), 8 states have call predecessors, (32), 14 states have return successors, (30), 20 states have call predecessors, (30), 16 states have call successors, (30) [2021-12-22 14:04:13,154 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-22 14:04:13,154 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-22 14:04:13,156 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-22 14:04:13,189 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-22 14:04:13,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:04:13,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-22 14:04:13,585 INFO L854 garLoopResultBuilder]: At program point L8735(line 8735) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2021-12-22 14:04:13,585 INFO L858 garLoopResultBuilder]: For program point L8735-1(line 8735) no Hoare annotation was computed. [2021-12-22 14:04:13,585 INFO L858 garLoopResultBuilder]: For program point aws_secure_zeroEXIT(lines 8734 8751) no Hoare annotation was computed. [2021-12-22 14:04:13,585 INFO L854 garLoopResultBuilder]: At program point aws_secure_zeroENTRY(lines 8734 8751) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2021-12-22 14:04:13,586 INFO L858 garLoopResultBuilder]: For program point aws_secure_zeroFINAL(lines 8734 8751) no Hoare annotation was computed. [2021-12-22 14:04:13,586 INFO L854 garLoopResultBuilder]: At program point L6815(lines 6806 6816) the Hoare annotation is: (let ((.cse5 (mod |ensure_string_is_allocated_bounded_length_#in~max_size#1| 18446744073709551616))) (and (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (let ((.cse3 (select |#memory_int| |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_#res#1.base|))) (let ((.cse2 (select .cse3 (+ |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_#res#1.offset| 8)))) (let ((.cse1 (* (- 1) .cse2))) (let ((.cse0 (< (div (+ (- 1) .cse5 .cse1) (- 18446744073709551616)) (+ (div .cse2 18446744073709551616) 1))) (.cse4 (mod .cse2 18446744073709551616))) (or (and .cse0 (< (div (+ 18446744073709551615 .cse1) (- 18446744073709551616)) (+ (div (+ (- 9223372036854775808) .cse2) 18446744073709551616) 1)) (= (select .cse3 (+ |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_#res#1.offset| (- 18446744073709551600) .cse4)) 0)) (and (< 0 (+ (div (+ .cse5 (- 18446744073709551609)) 18446744073709551616) 1)) (= 0 .cse2)) (and .cse0 (<= .cse4 9223372036854775807) (= (select .cse3 (+ |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_#res#1.offset| 16 .cse4)) 0))))))) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.offset| 0) (< (mod |ensure_string_is_allocated_bounded_length_~len~1#1| 18446744073709551616) .cse5) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_#res#1.base| 0)) (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 16)) (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_#res#1.offset| 0) (< (mod |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1| 18446744073709551616) .cse5))) [2021-12-22 14:04:13,586 INFO L858 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthEXIT(lines 6800 6804) no Hoare annotation was computed. [2021-12-22 14:04:13,586 INFO L854 garLoopResultBuilder]: At program point L6810(line 6810) the Hoare annotation is: (let ((.cse0 (mod |ensure_string_is_allocated_bounded_length_#in~max_size#1| 18446744073709551616))) (and (= |old(#memory_real)| |#memory_real|) (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= |#memory_int| |old(#memory_int)|) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.offset| 0) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (< (mod |ensure_string_is_allocated_bounded_length_~len~1#1| 18446744073709551616) .cse0) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 16)) (< (mod |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1| 18446744073709551616) .cse0))) [2021-12-22 14:04:13,586 INFO L858 garLoopResultBuilder]: For program point L6807-1(line 6807) no Hoare annotation was computed. [2021-12-22 14:04:13,586 INFO L854 garLoopResultBuilder]: At program point L6807(line 6807) the Hoare annotation is: (let ((.cse0 (mod |ensure_string_is_allocated_bounded_length_#in~max_size#1| 18446744073709551616))) (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (< (mod |ensure_string_is_allocated_bounded_length_~len~1#1| 18446744073709551616) .cse0) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|) (< (mod |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1| 18446744073709551616) .cse0))) [2021-12-22 14:04:13,586 INFO L858 garLoopResultBuilder]: For program point L6810-3(line 6810) no Hoare annotation was computed. [2021-12-22 14:04:13,586 INFO L854 garLoopResultBuilder]: At program point L6810-2(line 6810) the Hoare annotation is: (let ((.cse0 (mod |ensure_string_is_allocated_bounded_length_#in~max_size#1| 18446744073709551616))) (and (= |old(#memory_real)| |#memory_real|) (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= |#memory_int| |old(#memory_int)|) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.offset| 0) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (< (mod |ensure_string_is_allocated_bounded_length_~len~1#1| 18446744073709551616) .cse0) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 16)) (< (mod |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1| 18446744073709551616) .cse0))) [2021-12-22 14:04:13,586 INFO L858 garLoopResultBuilder]: For program point L6810-1(lines 6810 6811) no Hoare annotation was computed. [2021-12-22 14:04:13,586 INFO L854 garLoopResultBuilder]: At program point L6802(line 6802) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|)) [2021-12-22 14:04:13,586 INFO L854 garLoopResultBuilder]: At program point ensure_string_is_allocated_bounded_lengthENTRY(lines 6800 6804) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|)) [2021-12-22 14:04:13,587 INFO L858 garLoopResultBuilder]: For program point L6810-5(lines 6810 6811) no Hoare annotation was computed. [2021-12-22 14:04:13,587 INFO L858 garLoopResultBuilder]: For program point L6801-1(line 6801) no Hoare annotation was computed. [2021-12-22 14:04:13,587 INFO L854 garLoopResultBuilder]: At program point L6801(line 6801) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|)) [2021-12-22 14:04:13,587 INFO L858 garLoopResultBuilder]: For program point L6802-1(line 6802) no Hoare annotation was computed. [2021-12-22 14:04:13,587 INFO L858 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthFINAL(lines 6800 6804) no Hoare annotation was computed. [2021-12-22 14:04:13,587 INFO L854 garLoopResultBuilder]: At program point bounded_mallocENTRY(lines 6882 6887) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-12-22 14:04:13,587 INFO L858 garLoopResultBuilder]: For program point bounded_mallocFINAL(lines 6882 6887) no Hoare annotation was computed. [2021-12-22 14:04:13,587 INFO L858 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6882 6887) no Hoare annotation was computed. [2021-12-22 14:04:13,587 INFO L858 garLoopResultBuilder]: For program point L6883-1(lines 6883 6885) no Hoare annotation was computed. [2021-12-22 14:04:13,587 INFO L854 garLoopResultBuilder]: At program point L6883(lines 6883 6885) the Hoare annotation is: (and (= |bounded_malloc_#in~size| bounded_malloc_~size) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-12-22 14:04:13,587 INFO L858 garLoopResultBuilder]: For program point #Ultimate.C_memsetEXIT(line -1) no Hoare annotation was computed. [2021-12-22 14:04:13,587 INFO L861 garLoopResultBuilder]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-12-22 14:04:13,588 INFO L861 garLoopResultBuilder]: At program point #Ultimate.C_memsetENTRY(line -1) the Hoare annotation is: true [2021-12-22 14:04:13,588 INFO L858 garLoopResultBuilder]: For program point #Ultimate.C_memsetFINAL(line -1) no Hoare annotation was computed. [2021-12-22 14:04:13,588 INFO L858 garLoopResultBuilder]: For program point nondet_boolFINAL(line 261) no Hoare annotation was computed. [2021-12-22 14:04:13,588 INFO L858 garLoopResultBuilder]: For program point nondet_boolEXIT(line 261) no Hoare annotation was computed. [2021-12-22 14:04:13,588 INFO L861 garLoopResultBuilder]: At program point nondet_boolENTRY(line 261) the Hoare annotation is: true [2021-12-22 14:04:13,588 INFO L858 garLoopResultBuilder]: For program point L7069-2(lines 7061 7074) no Hoare annotation was computed. [2021-12-22 14:04:13,588 INFO L858 garLoopResultBuilder]: For program point aws_mem_releaseEXIT(lines 7061 7074) no Hoare annotation was computed. [2021-12-22 14:04:13,588 INFO L858 garLoopResultBuilder]: For program point L7069(lines 7069 7073) no Hoare annotation was computed. [2021-12-22 14:04:13,588 INFO L854 garLoopResultBuilder]: At program point L7062(lines 7062 7064) the Hoare annotation is: (= |old(#valid)| |#valid|) [2021-12-22 14:04:13,588 INFO L854 garLoopResultBuilder]: At program point aws_mem_releaseENTRY(lines 7061 7074) the Hoare annotation is: (= |old(#valid)| |#valid|) [2021-12-22 14:04:13,588 INFO L858 garLoopResultBuilder]: For program point L7065-1(lines 7065 7067) no Hoare annotation was computed. [2021-12-22 14:04:13,588 INFO L854 garLoopResultBuilder]: At program point L7065(lines 7065 7067) the Hoare annotation is: (= |old(#valid)| |#valid|) [2021-12-22 14:04:13,588 INFO L858 garLoopResultBuilder]: For program point L7062-1(lines 7062 7064) no Hoare annotation was computed. [2021-12-22 14:04:13,588 INFO L861 garLoopResultBuilder]: At program point aws_string_bytesENTRY(lines 6242 6246) the Hoare annotation is: true [2021-12-22 14:04:13,588 INFO L858 garLoopResultBuilder]: For program point aws_string_bytesEXIT(lines 6242 6246) no Hoare annotation was computed. [2021-12-22 14:04:13,588 INFO L858 garLoopResultBuilder]: For program point aws_string_bytesFINAL(lines 6242 6246) no Hoare annotation was computed. [2021-12-22 14:04:13,589 INFO L861 garLoopResultBuilder]: At program point L6244-1(line 6244) the Hoare annotation is: true [2021-12-22 14:04:13,589 INFO L858 garLoopResultBuilder]: For program point L6244-2(line 6244) no Hoare annotation was computed. [2021-12-22 14:04:13,589 INFO L861 garLoopResultBuilder]: At program point L6244(line 6244) the Hoare annotation is: true [2021-12-22 14:04:13,589 INFO L858 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2021-12-22 14:04:13,589 INFO L861 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 210 212) the Hoare annotation is: true [2021-12-22 14:04:13,589 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-12-22 14:04:13,589 INFO L858 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2021-12-22 14:04:13,589 INFO L858 garLoopResultBuilder]: For program point can_fail_allocatorFINAL(lines 6889 6891) no Hoare annotation was computed. [2021-12-22 14:04:13,589 INFO L858 garLoopResultBuilder]: For program point can_fail_allocatorEXIT(lines 6889 6891) no Hoare annotation was computed. [2021-12-22 14:04:13,589 INFO L861 garLoopResultBuilder]: At program point can_fail_allocatorENTRY(lines 6889 6891) the Hoare annotation is: true [2021-12-22 14:04:13,589 INFO L861 garLoopResultBuilder]: At program point aws_string_is_validENTRY(lines 6252 6257) the Hoare annotation is: true [2021-12-22 14:04:13,589 INFO L858 garLoopResultBuilder]: For program point L6256-2(line 6256) no Hoare annotation was computed. [2021-12-22 14:04:13,589 INFO L858 garLoopResultBuilder]: For program point L6256(line 6256) no Hoare annotation was computed. [2021-12-22 14:04:13,589 INFO L858 garLoopResultBuilder]: For program point L6256-5(line 6256) no Hoare annotation was computed. [2021-12-22 14:04:13,589 INFO L858 garLoopResultBuilder]: For program point aws_string_is_validFINAL(lines 6252 6257) no Hoare annotation was computed. [2021-12-22 14:04:13,589 INFO L858 garLoopResultBuilder]: For program point L6256-3(line 6256) no Hoare annotation was computed. [2021-12-22 14:04:13,590 INFO L858 garLoopResultBuilder]: For program point aws_string_is_validEXIT(lines 6252 6257) no Hoare annotation was computed. [2021-12-22 14:04:13,590 INFO L858 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2021-12-22 14:04:13,590 INFO L861 garLoopResultBuilder]: At program point nondet_uint64_tENTRY(line 266) the Hoare annotation is: true [2021-12-22 14:04:13,590 INFO L858 garLoopResultBuilder]: For program point nondet_uint64_tFINAL(line 266) no Hoare annotation was computed. [2021-12-22 14:04:13,590 INFO L858 garLoopResultBuilder]: For program point L9210(lines 9210 9215) no Hoare annotation was computed. [2021-12-22 14:04:13,590 INFO L858 garLoopResultBuilder]: For program point L9549(lines 9549 9551) no Hoare annotation was computed. [2021-12-22 14:04:13,590 INFO L861 garLoopResultBuilder]: At program point L9553(line 9553) the Hoare annotation is: true [2021-12-22 14:04:13,590 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-22 14:04:13,590 INFO L854 garLoopResultBuilder]: At program point L9211(line 9211) the Hoare annotation is: (and (= (* 256 (div |ULTIMATE.start_aws_string_destroy_secure_harness_~nondet_parameter~0#1| 256)) |ULTIMATE.start_aws_string_destroy_secure_harness_~nondet_parameter~0#1|) (not (= |ULTIMATE.start_aws_string_destroy_secure_harness_~str~3#1.base| 0))) [2021-12-22 14:04:13,590 INFO L858 garLoopResultBuilder]: For program point L9211-1(line 9211) no Hoare annotation was computed. [2021-12-22 14:04:13,590 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-22 14:04:13,590 INFO L858 garLoopResultBuilder]: For program point L9537(lines 9537 9552) no Hoare annotation was computed. [2021-12-22 14:04:13,590 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-22 14:04:13,591 INFO L854 garLoopResultBuilder]: At program point L9211-2(line 9211) the Hoare annotation is: (and (= (* 256 (div |ULTIMATE.start_aws_string_destroy_secure_harness_~nondet_parameter~0#1| 256)) |ULTIMATE.start_aws_string_destroy_secure_harness_~nondet_parameter~0#1|) (not (= |ULTIMATE.start_aws_string_destroy_secure_harness_~str~3#1.base| 0))) [2021-12-22 14:04:13,591 INFO L858 garLoopResultBuilder]: For program point L9211-3(line 9211) no Hoare annotation was computed. [2021-12-22 14:04:13,591 INFO L854 garLoopResultBuilder]: At program point L7118(line 7118) the Hoare annotation is: false [2021-12-22 14:04:13,591 INFO L858 garLoopResultBuilder]: For program point L9546(lines 9546 9547) no Hoare annotation was computed. [2021-12-22 14:04:13,591 INFO L858 garLoopResultBuilder]: For program point L7114(lines 7114 7122) no Hoare annotation was computed. [2021-12-22 14:04:13,591 INFO L858 garLoopResultBuilder]: For program point L235(line 235) no Hoare annotation was computed. [2021-12-22 14:04:13,591 INFO L858 garLoopResultBuilder]: For program point L7118-1(line 7118) no Hoare annotation was computed. [2021-12-22 14:04:13,591 INFO L861 garLoopResultBuilder]: At program point L9538(line 9538) the Hoare annotation is: true [2021-12-22 14:04:13,591 INFO L858 garLoopResultBuilder]: For program point L9546-2(lines 9546 9547) no Hoare annotation was computed. [2021-12-22 14:04:13,592 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-22 14:04:13,592 INFO L858 garLoopResultBuilder]: For program point L9212(lines 9212 9214) no Hoare annotation was computed. [2021-12-22 14:04:13,592 INFO L858 garLoopResultBuilder]: For program point L9538-1(line 9538) no Hoare annotation was computed. [2021-12-22 14:04:13,592 INFO L858 garLoopResultBuilder]: For program point L9208(lines 9208 9216) no Hoare annotation was computed. [2021-12-22 14:04:13,592 INFO L858 garLoopResultBuilder]: For program point L7119-1(line 7119) no Hoare annotation was computed. [2021-12-22 14:04:13,592 INFO L854 garLoopResultBuilder]: At program point L7119(line 7119) the Hoare annotation is: false [2021-12-22 14:04:13,592 INFO L858 garLoopResultBuilder]: For program point L7115(lines 7115 7121) no Hoare annotation was computed. [2021-12-22 14:04:13,593 INFO L854 garLoopResultBuilder]: At program point L9213(line 9213) the Hoare annotation is: (let ((.cse0 (not (= |ULTIMATE.start_aws_string_destroy_secure_harness_~str~3#1.base| 0)))) (or (and .cse0 (<= (mod |ULTIMATE.start_aws_string_destroy_secure_harness_~len~2#1| 18446744073709551616) 0)) (and (= (* 256 (div |ULTIMATE.start_aws_string_destroy_secure_harness_~nondet_parameter~0#1| 256)) |ULTIMATE.start_aws_string_destroy_secure_harness_~nondet_parameter~0#1|) .cse0))) [2021-12-22 14:04:13,593 INFO L858 garLoopResultBuilder]: For program point L9213-1(line 9213) no Hoare annotation was computed. [2021-12-22 14:04:13,593 INFO L854 garLoopResultBuilder]: At program point L9209-4(line 9209) the Hoare annotation is: (and (not (= |ULTIMATE.start_aws_string_destroy_secure_harness_~str~3#1.base| 0)) (= (+ (* (- 256) (div |ULTIMATE.start_aws_string_destroy_secure_harness_~nondet_parameter~0#1| 256)) |ULTIMATE.start_aws_string_destroy_secure_harness_~nondet_parameter~0#1|) 0)) [2021-12-22 14:04:13,593 INFO L858 garLoopResultBuilder]: For program point L9209-5(line 9209) no Hoare annotation was computed. [2021-12-22 14:04:13,593 INFO L858 garLoopResultBuilder]: For program point L9209(line 9209) no Hoare annotation was computed. [2021-12-22 14:04:13,593 INFO L854 garLoopResultBuilder]: At program point L9209-2(line 9209) the Hoare annotation is: (and (not (= |ULTIMATE.start_aws_string_destroy_secure_harness_~str~3#1.base| 0)) (= (+ (* (- 256) (div |ULTIMATE.start_aws_string_destroy_secure_harness_~nondet_parameter~0#1| 256)) |ULTIMATE.start_aws_string_destroy_secure_harness_~nondet_parameter~0#1|) 0)) [2021-12-22 14:04:13,593 INFO L858 garLoopResultBuilder]: For program point L7124(lines 7124 7126) no Hoare annotation was computed. [2021-12-22 14:04:13,594 INFO L858 garLoopResultBuilder]: For program point L9209-3(line 9209) no Hoare annotation was computed. [2021-12-22 14:04:13,594 INFO L858 garLoopResultBuilder]: For program point L7120-1(line 7120) no Hoare annotation was computed. [2021-12-22 14:04:13,594 INFO L854 garLoopResultBuilder]: At program point L7120(line 7120) the Hoare annotation is: false [2021-12-22 14:04:13,594 INFO L858 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-12-22 14:04:13,594 INFO L861 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 222 224) the Hoare annotation is: true [2021-12-22 14:04:13,594 INFO L858 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-12-22 14:04:13,594 INFO L858 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2021-12-22 14:04:13,595 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2021-12-22 14:04:13,595 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-12-22 14:04:13,597 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-12-22 14:04:13,598 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-22 14:04:13,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 02:04:13 BoogieIcfgContainer [2021-12-22 14:04:13,614 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-22 14:04:13,615 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-22 14:04:13,615 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-22 14:04:13,615 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-22 14:04:13,615 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:03:53" (3/4) ... [2021-12-22 14:04:13,618 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-22 14:04:13,623 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_secure_zero [2021-12-22 14:04:13,623 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ensure_string_is_allocated_bounded_length [2021-12-22 14:04:13,623 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2021-12-22 14:04:13,623 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset [2021-12-22 14:04:13,623 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2021-12-22 14:04:13,623 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_mem_release [2021-12-22 14:04:13,623 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_bytes [2021-12-22 14:04:13,623 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2021-12-22 14:04:13,624 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2021-12-22 14:04:13,624 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_is_valid [2021-12-22 14:04:13,624 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2021-12-22 14:04:13,624 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-12-22 14:04:13,637 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 129 nodes and edges [2021-12-22 14:04:13,638 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 62 nodes and edges [2021-12-22 14:04:13,639 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2021-12-22 14:04:13,640 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-12-22 14:04:13,641 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-12-22 14:04:13,643 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-12-22 14:04:13,644 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-22 14:04:13,645 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-22 14:04:13,675 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((\old(max_size) == max_size && (((((-1 + \old(max_size) % 18446744073709551616 + -1 * unknown-#memory_int-unknown[\result][\result + 8]) / -18446744073709551616 < unknown-#memory_int-unknown[\result][\result + 8] / 18446744073709551616 + 1 && (18446744073709551615 + -1 * unknown-#memory_int-unknown[\result][\result + 8]) / -18446744073709551616 < (-9223372036854775808 + unknown-#memory_int-unknown[\result][\result + 8]) / 18446744073709551616 + 1) && unknown-#memory_int-unknown[\result][\result + -18446744073709551600 + unknown-#memory_int-unknown[\result][\result + 8] % 18446744073709551616] == 0) || (0 < (\old(max_size) % 18446744073709551616 + -18446744073709551609) / 18446744073709551616 + 1 && 0 == unknown-#memory_int-unknown[\result][\result + 8])) || (((-1 + \old(max_size) % 18446744073709551616 + -1 * unknown-#memory_int-unknown[\result][\result + 8]) / -18446744073709551616 < unknown-#memory_int-unknown[\result][\result + 8] / 18446744073709551616 + 1 && unknown-#memory_int-unknown[\result][\result + 8] % 18446744073709551616 <= 9223372036854775807) && unknown-#memory_int-unknown[\result][\result + 16 + unknown-#memory_int-unknown[\result][\result + 8] % 18446744073709551616] == 0))) && !(str == 0)) && str == 0) && len % 18446744073709551616 < \old(max_size) % 18446744073709551616) && !(\result == 0)) && !(\old(max_size) == 16)) && \result == 0) && len % 18446744073709551616 < \old(max_size) % 18446744073709551616 [2021-12-22 14:04:14,229 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-22 14:04:14,229 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-22 14:04:14,230 INFO L158 Benchmark]: Toolchain (without parser) took 23793.36ms. Allocated memory was 94.4MB in the beginning and 388.0MB in the end (delta: 293.6MB). Free memory was 51.9MB in the beginning and 154.1MB in the end (delta: -102.2MB). Peak memory consumption was 255.3MB. Max. memory is 16.1GB. [2021-12-22 14:04:14,230 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 77.6MB. Free memory was 50.3MB in the beginning and 50.3MB in the end (delta: 25.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 14:04:14,231 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2035.08ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 51.8MB in the beginning and 44.2MB in the end (delta: 7.6MB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. [2021-12-22 14:04:14,231 INFO L158 Benchmark]: Boogie Procedure Inliner took 214.78ms. Allocated memory is still 113.2MB. Free memory was 44.2MB in the beginning and 58.2MB in the end (delta: -14.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-22 14:04:14,231 INFO L158 Benchmark]: Boogie Preprocessor took 116.05ms. Allocated memory is still 113.2MB. Free memory was 57.7MB in the beginning and 51.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-22 14:04:14,232 INFO L158 Benchmark]: RCFGBuilder took 1159.92ms. Allocated memory was 113.2MB in the beginning and 180.4MB in the end (delta: 67.1MB). Free memory was 51.5MB in the beginning and 78.9MB in the end (delta: -27.4MB). Peak memory consumption was 53.4MB. Max. memory is 16.1GB. [2021-12-22 14:04:14,232 INFO L158 Benchmark]: TraceAbstraction took 19633.24ms. Allocated memory was 180.4MB in the beginning and 388.0MB in the end (delta: 207.6MB). Free memory was 78.9MB in the beginning and 292.2MB in the end (delta: -213.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 14:04:14,232 INFO L158 Benchmark]: Witness Printer took 614.75ms. Allocated memory is still 388.0MB. Free memory was 292.2MB in the beginning and 154.1MB in the end (delta: 138.1MB). Peak memory consumption was 201.1MB. Max. memory is 16.1GB. [2021-12-22 14:04:14,235 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 77.6MB. Free memory was 50.3MB in the beginning and 50.3MB in the end (delta: 25.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2035.08ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 51.8MB in the beginning and 44.2MB in the end (delta: 7.6MB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 214.78ms. Allocated memory is still 113.2MB. Free memory was 44.2MB in the beginning and 58.2MB in the end (delta: -14.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 116.05ms. Allocated memory is still 113.2MB. Free memory was 57.7MB in the beginning and 51.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1159.92ms. Allocated memory was 113.2MB in the beginning and 180.4MB in the end (delta: 67.1MB). Free memory was 51.5MB in the beginning and 78.9MB in the end (delta: -27.4MB). Peak memory consumption was 53.4MB. Max. memory is 16.1GB. * TraceAbstraction took 19633.24ms. Allocated memory was 180.4MB in the beginning and 388.0MB in the end (delta: 207.6MB). Free memory was 78.9MB in the beginning and 292.2MB in the end (delta: -213.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 614.75ms. Allocated memory is still 388.0MB. Free memory was 292.2MB in the beginning and 154.1MB in the end (delta: 138.1MB). Peak memory consumption was 201.1MB. 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 13 procedures, 104 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 19.6s, OverallIterations: 6, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 367 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 336 mSDsluCounter, 3179 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 212 IncrementalHoareTripleChecker+Unchecked, 2600 mSDsCounter, 193 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1136 IncrementalHoareTripleChecker+Invalid, 1541 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 193 mSolverCounterUnsat, 579 mSDtfsCounter, 1136 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 697 GetRequests, 522 SyntacticMatches, 16 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1614 ImplicationChecksByTransitivity, 6.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=104occurred in iteration=0, InterpolantAutomatonStates: 54, 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, 6 MinimizatonAttempts, 31 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 35 LocationsWithAnnotation, 107 PreInvPairs, 120 NumberOfFragments, 514 HoareAnnotationTreeSize, 107 FomulaSimplifications, 62 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 35 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 12.9s InterpolantComputationTime, 874 NumberOfCodeBlocks, 874 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 968 ConstructedInterpolants, 63 QuantifiedInterpolants, 10134 SizeOfPredicates, 97 NumberOfNonLiveVariables, 10595 ConjunctsInSsa, 300 ConjunctsInUnsatCore, 11 InterpolantComputations, 5 PerfectInterpolantSequences, 365/446 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 9553]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6806]: Loop Invariant Derived loop invariant: (((((((\old(max_size) == max_size && (((((-1 + \old(max_size) % 18446744073709551616 + -1 * unknown-#memory_int-unknown[\result][\result + 8]) / -18446744073709551616 < unknown-#memory_int-unknown[\result][\result + 8] / 18446744073709551616 + 1 && (18446744073709551615 + -1 * unknown-#memory_int-unknown[\result][\result + 8]) / -18446744073709551616 < (-9223372036854775808 + unknown-#memory_int-unknown[\result][\result + 8]) / 18446744073709551616 + 1) && unknown-#memory_int-unknown[\result][\result + -18446744073709551600 + unknown-#memory_int-unknown[\result][\result + 8] % 18446744073709551616] == 0) || (0 < (\old(max_size) % 18446744073709551616 + -18446744073709551609) / 18446744073709551616 + 1 && 0 == unknown-#memory_int-unknown[\result][\result + 8])) || (((-1 + \old(max_size) % 18446744073709551616 + -1 * unknown-#memory_int-unknown[\result][\result + 8]) / -18446744073709551616 < unknown-#memory_int-unknown[\result][\result + 8] / 18446744073709551616 + 1 && unknown-#memory_int-unknown[\result][\result + 8] % 18446744073709551616 <= 9223372036854775807) && unknown-#memory_int-unknown[\result][\result + 16 + unknown-#memory_int-unknown[\result][\result + 8] % 18446744073709551616] == 0))) && !(str == 0)) && str == 0) && len % 18446744073709551616 < \old(max_size) % 18446744073709551616) && !(\result == 0)) && !(\old(max_size) == 16)) && \result == 0) && len % 18446744073709551616 < \old(max_size) % 18446744073709551616 RESULT: Ultimate proved your program to be correct! [2021-12-22 14:04:14,259 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE