./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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_eq_c_str_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 b64b813c3d856efe8cd859d380d09d4b682c371a0a165a5a5fe0d11dc206dad7 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 01:23:07,280 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 01:23:07,282 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 01:23:07,312 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 01:23:07,313 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 01:23:07,314 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 01:23:07,315 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 01:23:07,317 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 01:23:07,318 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 01:23:07,319 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 01:23:07,319 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 01:23:07,320 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 01:23:07,322 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 01:23:07,327 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 01:23:07,329 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 01:23:07,332 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 01:23:07,335 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 01:23:07,336 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 01:23:07,338 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 01:23:07,339 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 01:23:07,341 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 01:23:07,348 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 01:23:07,349 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 01:23:07,352 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 01:23:07,354 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 01:23:07,359 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 01:23:07,359 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 01:23:07,360 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 01:23:07,362 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 01:23:07,363 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 01:23:07,364 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 01:23:07,364 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 01:23:07,365 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 01:23:07,365 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 01:23:07,366 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 01:23:07,366 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 01:23:07,367 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 01:23:07,367 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 01:23:07,368 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 01:23:07,369 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 01:23:07,372 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 01:23:07,373 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 01:23:07,413 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 01:23:07,415 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 01:23:07,416 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 01:23:07,416 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 01:23:07,417 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 01:23:07,418 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 01:23:07,418 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 01:23:07,419 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 01:23:07,419 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 01:23:07,419 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 01:23:07,420 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 01:23:07,421 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 01:23:07,421 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 01:23:07,421 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 01:23:07,421 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 01:23:07,421 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 01:23:07,421 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 01:23:07,422 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 01:23:07,422 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 01:23:07,422 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 01:23:07,422 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 01:23:07,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 01:23:07,423 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 01:23:07,423 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 01:23:07,423 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 01:23:07,423 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 01:23:07,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 01:23:07,424 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 01:23:07,424 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 01:23:07,424 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 01:23:07,424 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 01:23:07,424 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b64b813c3d856efe8cd859d380d09d4b682c371a0a165a5a5fe0d11dc206dad7 [2021-12-18 01:23:07,670 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 01:23:07,689 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 01:23:07,691 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 01:23:07,692 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 01:23:07,693 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 01:23:07,694 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness.i [2021-12-18 01:23:07,763 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/576d80869/5daf82003417416e8be7e86fb77a8227/FLAG85b6f1731 [2021-12-18 01:23:08,396 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 01:23:08,397 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness.i [2021-12-18 01:23:08,432 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/576d80869/5daf82003417416e8be7e86fb77a8227/FLAG85b6f1731 [2021-12-18 01:23:08,573 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/576d80869/5daf82003417416e8be7e86fb77a8227 [2021-12-18 01:23:08,576 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 01:23:08,579 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 01:23:08,581 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 01:23:08,581 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 01:23:08,584 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 01:23:08,586 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 01:23:08" (1/1) ... [2021-12-18 01:23:08,587 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b887ab6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:23:08, skipping insertion in model container [2021-12-18 01:23:08,587 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 01:23:08" (1/1) ... [2021-12-18 01:23:08,593 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 01:23:08,682 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 01:23:08,958 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_eq_c_str_harness.i[4493,4506] [2021-12-18 01:23:08,966 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_eq_c_str_harness.i[4553,4566] [2021-12-18 01:23:09,647 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-18 01:23:09,648 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-18 01:23:09,648 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-18 01:23:09,649 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-18 01:23:09,650 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-18 01:23:09,662 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-18 01:23:09,662 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-18 01:23:09,664 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-18 01:23:09,665 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-18 01:23:09,946 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-18 01:23:09,947 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-18 01:23:09,948 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-18 01:23:09,949 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-18 01:23:09,950 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-18 01:23:09,951 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-18 01:23:09,951 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-18 01:23:09,952 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-18 01:23:09,953 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-18 01:23:09,953 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-18 01:23:10,069 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-18 01:23:10,204 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-18 01:23:10,205 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-18 01:23:10,228 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 01:23:10,263 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 01:23:10,277 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_eq_c_str_harness.i[4493,4506] [2021-12-18 01:23:10,277 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_eq_c_str_harness.i[4553,4566] [2021-12-18 01:23:10,344 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-18 01:23:10,344 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-18 01:23:10,345 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-18 01:23:10,346 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-18 01:23:10,346 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-18 01:23:10,356 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-18 01:23:10,359 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-18 01:23:10,360 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-18 01:23:10,361 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-18 01:23:10,395 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-18 01:23:10,396 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-18 01:23:10,398 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-18 01:23:10,399 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-18 01:23:10,405 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-18 01:23:10,405 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-18 01:23:10,406 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-18 01:23:10,407 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-18 01:23:10,407 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-18 01:23:10,407 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-18 01:23:10,424 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-18 01:23:10,490 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-18 01:23:10,491 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-18 01:23:10,505 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 01:23:10,719 INFO L208 MainTranslator]: Completed translation [2021-12-18 01:23:10,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:23:10 WrapperNode [2021-12-18 01:23:10,720 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 01:23:10,721 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 01:23:10,721 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 01:23:10,721 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 01:23:10,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:23:10" (1/1) ... [2021-12-18 01:23:10,837 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:23:10" (1/1) ... [2021-12-18 01:23:10,921 INFO L137 Inliner]: procedures = 681, calls = 2272, calls flagged for inlining = 60, calls inlined = 8, statements flattened = 391 [2021-12-18 01:23:10,921 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 01:23:10,923 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 01:23:10,923 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 01:23:10,923 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 01:23:10,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:23:10" (1/1) ... [2021-12-18 01:23:10,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:23:10" (1/1) ... [2021-12-18 01:23:10,942 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:23:10" (1/1) ... [2021-12-18 01:23:10,943 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:23:10" (1/1) ... [2021-12-18 01:23:10,981 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:23:10" (1/1) ... [2021-12-18 01:23:10,997 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:23:10" (1/1) ... [2021-12-18 01:23:11,001 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:23:10" (1/1) ... [2021-12-18 01:23:11,017 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 01:23:11,018 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 01:23:11,019 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 01:23:11,019 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 01:23:11,021 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:23:10" (1/1) ... [2021-12-18 01:23:11,028 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 01:23:11,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 01:23:11,057 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) [2021-12-18 01:23:11,082 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 [2021-12-18 01:23:11,099 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_c_str [2021-12-18 01:23:11,099 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_c_str [2021-12-18 01:23:11,099 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2021-12-18 01:23:11,099 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2021-12-18 01:23:11,100 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2021-12-18 01:23:11,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2021-12-18 01:23:11,100 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-12-18 01:23:11,101 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-12-18 01:23:11,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 01:23:11,101 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-18 01:23:11,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-18 01:23:11,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 01:23:11,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 01:23:11,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 01:23:11,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 01:23:11,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 01:23:11,103 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-12-18 01:23:11,104 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-12-18 01:23:11,104 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-18 01:23:11,104 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-18 01:23:11,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 01:23:11,104 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-12-18 01:23:11,104 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-12-18 01:23:11,104 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-12-18 01:23:11,105 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-12-18 01:23:11,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 01:23:11,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 01:23:11,332 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 01:23:11,334 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 01:23:11,676 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 01:23:11,683 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 01:23:11,683 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-18 01:23:11,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 01:23:11 BoogieIcfgContainer [2021-12-18 01:23:11,685 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 01:23:11,686 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 01:23:11,687 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 01:23:11,690 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 01:23:11,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 01:23:08" (1/3) ... [2021-12-18 01:23:11,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49fcd665 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 01:23:11, skipping insertion in model container [2021-12-18 01:23:11,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 01:23:10" (2/3) ... [2021-12-18 01:23:11,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49fcd665 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 01:23:11, skipping insertion in model container [2021-12-18 01:23:11,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 01:23:11" (3/3) ... [2021-12-18 01:23:11,693 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_string_eq_c_str_harness.i [2021-12-18 01:23:11,702 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 01:23:11,706 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-18 01:23:11,774 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 01:23:11,790 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 [2021-12-18 01:23:11,794 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-18 01:23:11,814 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 70 states have (on average 1.2428571428571429) internal successors, (87), 71 states have internal predecessors, (87), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2021-12-18 01:23:11,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-12-18 01:23:11,823 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:23:11,824 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-18 01:23:11,825 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:23:11,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:23:11,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1676862830, now seen corresponding path program 1 times [2021-12-18 01:23:11,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:23:11,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037194026] [2021-12-18 01:23:11,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:23:11,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:23:12,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:12,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 01:23:12,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:12,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 01:23:12,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:12,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 01:23:12,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:12,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 01:23:12,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:12,326 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-18 01:23:12,327 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:23:12,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037194026] [2021-12-18 01:23:12,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037194026] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:23:12,329 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 01:23:12,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-18 01:23:12,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460602176] [2021-12-18 01:23:12,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:23:12,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-18 01:23:12,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:23:12,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-18 01:23:12,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-18 01:23:12,365 INFO L87 Difference]: Start difference. First operand has 107 states, 70 states have (on average 1.2428571428571429) internal successors, (87), 71 states have internal predecessors, (87), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-18 01:23:12,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:23:12,427 INFO L93 Difference]: Finished difference Result 205 states and 281 transitions. [2021-12-18 01:23:12,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-18 01:23:12,431 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 36 [2021-12-18 01:23:12,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:23:12,444 INFO L225 Difference]: With dead ends: 205 [2021-12-18 01:23:12,445 INFO L226 Difference]: Without dead ends: 101 [2021-12-18 01:23:12,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-18 01:23:12,458 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 01:23:12,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 01:23:12,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-12-18 01:23:12,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2021-12-18 01:23:12,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 65 states have (on average 1.1846153846153846) internal successors, (77), 66 states have internal predecessors, (77), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2021-12-18 01:23:12,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 128 transitions. [2021-12-18 01:23:12,512 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 128 transitions. Word has length 36 [2021-12-18 01:23:12,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:23:12,514 INFO L470 AbstractCegarLoop]: Abstraction has 101 states and 128 transitions. [2021-12-18 01:23:12,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-18 01:23:12,514 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 128 transitions. [2021-12-18 01:23:12,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-12-18 01:23:12,522 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:23:12,523 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-18 01:23:12,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 01:23:12,523 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:23:12,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:23:12,524 INFO L85 PathProgramCache]: Analyzing trace with hash -12080912, now seen corresponding path program 1 times [2021-12-18 01:23:12,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:23:12,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446754995] [2021-12-18 01:23:12,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:23:12,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:23:12,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:12,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 01:23:12,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:12,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 01:23:12,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:12,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 01:23:12,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:12,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 01:23:12,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:12,758 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-18 01:23:12,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:23:12,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446754995] [2021-12-18 01:23:12,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446754995] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:23:12,759 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 01:23:12,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 01:23:12,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833480328] [2021-12-18 01:23:12,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:23:12,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 01:23:12,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:23:12,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 01:23:12,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 01:23:12,762 INFO L87 Difference]: Start difference. First operand 101 states and 128 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-12-18 01:23:12,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:23:12,822 INFO L93 Difference]: Finished difference Result 148 states and 186 transitions. [2021-12-18 01:23:12,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 01:23:12,823 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 36 [2021-12-18 01:23:12,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:23:12,825 INFO L225 Difference]: With dead ends: 148 [2021-12-18 01:23:12,826 INFO L226 Difference]: Without dead ends: 101 [2021-12-18 01:23:12,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 01:23:12,829 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 6 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 01:23:12,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 380 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 01:23:12,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-12-18 01:23:12,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2021-12-18 01:23:12,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 65 states have (on average 1.1692307692307693) internal successors, (76), 66 states have internal predecessors, (76), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2021-12-18 01:23:12,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 127 transitions. [2021-12-18 01:23:12,848 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 127 transitions. Word has length 36 [2021-12-18 01:23:12,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:23:12,848 INFO L470 AbstractCegarLoop]: Abstraction has 101 states and 127 transitions. [2021-12-18 01:23:12,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-12-18 01:23:12,850 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 127 transitions. [2021-12-18 01:23:12,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-12-18 01:23:12,858 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:23:12,859 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] [2021-12-18 01:23:12,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 01:23:12,860 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:23:12,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:23:12,860 INFO L85 PathProgramCache]: Analyzing trace with hash 2108660913, now seen corresponding path program 1 times [2021-12-18 01:23:12,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:23:12,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003837314] [2021-12-18 01:23:12,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:23:12,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:23:12,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:13,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 01:23:13,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:13,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 01:23:13,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:13,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 01:23:13,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:13,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 01:23:13,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:13,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 01:23:13,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:13,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:23:13,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:13,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 01:23:13,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:13,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 01:23:13,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:13,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 01:23:13,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:13,169 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-18 01:23:13,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:23:13,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003837314] [2021-12-18 01:23:13,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003837314] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:23:13,170 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 01:23:13,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-18 01:23:13,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986632921] [2021-12-18 01:23:13,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:23:13,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-18 01:23:13,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:23:13,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-18 01:23:13,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-18 01:23:13,172 INFO L87 Difference]: Start difference. First operand 101 states and 127 transitions. Second operand has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 7 states have internal predecessors, (34), 4 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2021-12-18 01:23:13,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:23:13,476 INFO L93 Difference]: Finished difference Result 138 states and 169 transitions. [2021-12-18 01:23:13,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 01:23:13,476 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 7 states have internal predecessors, (34), 4 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) Word has length 64 [2021-12-18 01:23:13,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:23:13,478 INFO L225 Difference]: With dead ends: 138 [2021-12-18 01:23:13,478 INFO L226 Difference]: Without dead ends: 101 [2021-12-18 01:23:13,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-12-18 01:23:13,480 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 89 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-18 01:23:13,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 545 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-18 01:23:13,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-12-18 01:23:13,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2021-12-18 01:23:13,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 65 states have (on average 1.1538461538461537) internal successors, (75), 66 states have internal predecessors, (75), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2021-12-18 01:23:13,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 126 transitions. [2021-12-18 01:23:13,492 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 126 transitions. Word has length 64 [2021-12-18 01:23:13,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:23:13,492 INFO L470 AbstractCegarLoop]: Abstraction has 101 states and 126 transitions. [2021-12-18 01:23:13,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 7 states have internal predecessors, (34), 4 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2021-12-18 01:23:13,493 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 126 transitions. [2021-12-18 01:23:13,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-18 01:23:13,494 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:23:13,494 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] [2021-12-18 01:23:13,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 01:23:13,495 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:23:13,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:23:13,495 INFO L85 PathProgramCache]: Analyzing trace with hash -63104247, now seen corresponding path program 1 times [2021-12-18 01:23:13,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:23:13,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207415725] [2021-12-18 01:23:13,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:23:13,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:23:13,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:13,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 01:23:13,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:13,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 01:23:13,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:13,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 01:23:13,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:13,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 01:23:13,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:13,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 01:23:13,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:13,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:23:13,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:13,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 01:23:13,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:13,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 01:23:13,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:13,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-18 01:23:13,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:13,735 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-18 01:23:13,736 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:23:13,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207415725] [2021-12-18 01:23:13,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207415725] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:23:13,736 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 01:23:13,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 01:23:13,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544127438] [2021-12-18 01:23:13,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:23:13,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 01:23:13,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:23:13,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 01:23:13,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 01:23:13,740 INFO L87 Difference]: Start difference. First operand 101 states and 126 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-12-18 01:23:13,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:23:13,957 INFO L93 Difference]: Finished difference Result 159 states and 199 transitions. [2021-12-18 01:23:13,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 01:23:13,958 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 3 states have call successors, (10), 3 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 [2021-12-18 01:23:13,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:23:13,959 INFO L225 Difference]: With dead ends: 159 [2021-12-18 01:23:13,959 INFO L226 Difference]: Without dead ends: 101 [2021-12-18 01:23:13,960 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 01:23:13,961 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 41 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-18 01:23:13,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 334 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-18 01:23:13,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-12-18 01:23:13,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2021-12-18 01:23:13,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 65 states have (on average 1.1384615384615384) internal successors, (74), 66 states have internal predecessors, (74), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2021-12-18 01:23:13,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 125 transitions. [2021-12-18 01:23:13,978 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 125 transitions. Word has length 65 [2021-12-18 01:23:13,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:23:13,979 INFO L470 AbstractCegarLoop]: Abstraction has 101 states and 125 transitions. [2021-12-18 01:23:13,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-12-18 01:23:13,979 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 125 transitions. [2021-12-18 01:23:13,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-18 01:23:13,980 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:23:13,981 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 3, 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] [2021-12-18 01:23:13,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 01:23:13,981 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:23:13,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:23:13,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1726009102, now seen corresponding path program 1 times [2021-12-18 01:23:13,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:23:13,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980365393] [2021-12-18 01:23:13,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:23:13,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:23:14,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:14,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 01:23:14,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:14,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 01:23:14,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:14,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:23:14,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:14,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 01:23:14,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:14,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 01:23:14,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:14,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:23:14,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:14,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 01:23:14,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:14,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 01:23:14,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:14,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 01:23:14,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:14,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 01:23:14,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:14,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-18 01:23:14,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:14,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:23:14,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:14,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-18 01:23:14,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:14,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-18 01:23:14,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:14,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-18 01:23:14,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:14,389 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-12-18 01:23:14,390 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:23:14,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980365393] [2021-12-18 01:23:14,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980365393] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 01:23:14,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838852753] [2021-12-18 01:23:14,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:23:14,392 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 01:23:14,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 01:23:14,396 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) [2021-12-18 01:23:14,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-18 01:23:14,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:14,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 911 conjuncts, 21 conjunts are in the unsatisfiable core [2021-12-18 01:23:14,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 01:23:15,068 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-12-18 01:23:15,069 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 01:23:15,345 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-12-18 01:23:15,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1838852753] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 01:23:15,346 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-18 01:23:15,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 11] total 23 [2021-12-18 01:23:15,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329603799] [2021-12-18 01:23:15,350 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-18 01:23:15,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-12-18 01:23:15,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:23:15,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-12-18 01:23:15,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=459, Unknown=0, NotChecked=0, Total=506 [2021-12-18 01:23:15,354 INFO L87 Difference]: Start difference. First operand 101 states and 125 transitions. Second operand has 23 states, 23 states have (on average 3.391304347826087) internal successors, (78), 17 states have internal predecessors, (78), 7 states have call successors, (26), 4 states have call predecessors, (26), 6 states have return successors, (25), 11 states have call predecessors, (25), 7 states have call successors, (25) [2021-12-18 01:23:16,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:23:16,123 INFO L93 Difference]: Finished difference Result 155 states and 191 transitions. [2021-12-18 01:23:16,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-18 01:23:16,124 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.391304347826087) internal successors, (78), 17 states have internal predecessors, (78), 7 states have call successors, (26), 4 states have call predecessors, (26), 6 states have return successors, (25), 11 states have call predecessors, (25), 7 states have call successors, (25) Word has length 99 [2021-12-18 01:23:16,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:23:16,125 INFO L225 Difference]: With dead ends: 155 [2021-12-18 01:23:16,125 INFO L226 Difference]: Without dead ends: 101 [2021-12-18 01:23:16,126 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 216 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=98, Invalid=894, Unknown=0, NotChecked=0, Total=992 [2021-12-18 01:23:16,126 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 89 mSDsluCounter, 1190 mSDsCounter, 0 mSdLazyCounter, 935 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 1293 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-18 01:23:16,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 1293 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 935 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-18 01:23:16,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-12-18 01:23:16,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2021-12-18 01:23:16,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 65 states have (on average 1.123076923076923) internal successors, (73), 66 states have internal predecessors, (73), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2021-12-18 01:23:16,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 124 transitions. [2021-12-18 01:23:16,134 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 124 transitions. Word has length 99 [2021-12-18 01:23:16,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:23:16,135 INFO L470 AbstractCegarLoop]: Abstraction has 101 states and 124 transitions. [2021-12-18 01:23:16,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.391304347826087) internal successors, (78), 17 states have internal predecessors, (78), 7 states have call successors, (26), 4 states have call predecessors, (26), 6 states have return successors, (25), 11 states have call predecessors, (25), 7 states have call successors, (25) [2021-12-18 01:23:16,135 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 124 transitions. [2021-12-18 01:23:16,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-18 01:23:16,136 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:23:16,136 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 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] [2021-12-18 01:23:16,165 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-18 01:23:16,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 01:23:16,353 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:23:16,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:23:16,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1789492427, now seen corresponding path program 1 times [2021-12-18 01:23:16,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:23:16,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397317903] [2021-12-18 01:23:16,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:23:16,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:23:16,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:16,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 01:23:16,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:16,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 01:23:16,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:16,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:23:16,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:16,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 01:23:16,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:16,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 01:23:16,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:16,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:23:16,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:16,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 01:23:16,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:16,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 01:23:16,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:16,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 01:23:16,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:16,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 01:23:16,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:16,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-18 01:23:16,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:16,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:23:16,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:16,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-18 01:23:16,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:16,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-18 01:23:16,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:16,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 01:23:16,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:16,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 01:23:16,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:16,814 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-12-18 01:23:16,814 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:23:16,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397317903] [2021-12-18 01:23:16,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397317903] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 01:23:16,815 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 01:23:16,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-12-18 01:23:16,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207639309] [2021-12-18 01:23:16,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 01:23:16,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-12-18 01:23:16,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:23:16,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-12-18 01:23:16,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-12-18 01:23:16,817 INFO L87 Difference]: Start difference. First operand 101 states and 124 transitions. Second operand has 18 states, 18 states have (on average 2.5) internal successors, (45), 13 states have internal predecessors, (45), 6 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (15), 9 states have call predecessors, (15), 6 states have call successors, (15) [2021-12-18 01:23:17,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:23:17,389 INFO L93 Difference]: Finished difference Result 138 states and 166 transitions. [2021-12-18 01:23:17,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-18 01:23:17,390 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 13 states have internal predecessors, (45), 6 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (15), 9 states have call predecessors, (15), 6 states have call successors, (15) Word has length 108 [2021-12-18 01:23:17,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:23:17,391 INFO L225 Difference]: With dead ends: 138 [2021-12-18 01:23:17,391 INFO L226 Difference]: Without dead ends: 101 [2021-12-18 01:23:17,392 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2021-12-18 01:23:17,392 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 132 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-18 01:23:17,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 736 Invalid, 774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-18 01:23:17,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-12-18 01:23:17,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2021-12-18 01:23:17,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 65 states have (on average 1.1076923076923078) internal successors, (72), 66 states have internal predecessors, (72), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2021-12-18 01:23:17,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 123 transitions. [2021-12-18 01:23:17,401 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 123 transitions. Word has length 108 [2021-12-18 01:23:17,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:23:17,402 INFO L470 AbstractCegarLoop]: Abstraction has 101 states and 123 transitions. [2021-12-18 01:23:17,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 13 states have internal predecessors, (45), 6 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (15), 9 states have call predecessors, (15), 6 states have call successors, (15) [2021-12-18 01:23:17,403 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 123 transitions. [2021-12-18 01:23:17,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-12-18 01:23:17,404 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 01:23:17,404 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 2, 2, 2, 2, 2, 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] [2021-12-18 01:23:17,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 01:23:17,404 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 01:23:17,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 01:23:17,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1818490091, now seen corresponding path program 1 times [2021-12-18 01:23:17,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 01:23:17,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32494170] [2021-12-18 01:23:17,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:23:17,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 01:23:17,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:17,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 01:23:17,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:17,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 01:23:17,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:17,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:23:17,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:17,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 01:23:17,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:17,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 01:23:17,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:17,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:23:17,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:17,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 01:23:17,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:17,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 01:23:17,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:17,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 01:23:17,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:17,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 01:23:17,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:17,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-18 01:23:17,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:17,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:23:17,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:17,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-18 01:23:17,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:17,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-18 01:23:17,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:17,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 01:23:17,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:17,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-18 01:23:17,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:18,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 01:23:18,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:18,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 01:23:18,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:18,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 01:23:18,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:18,023 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2021-12-18 01:23:18,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 01:23:18,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32494170] [2021-12-18 01:23:18,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32494170] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 01:23:18,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1494837039] [2021-12-18 01:23:18,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 01:23:18,024 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 01:23:18,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 01:23:18,025 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) [2021-12-18 01:23:18,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-18 01:23:18,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 01:23:18,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 998 conjuncts, 104 conjunts are in the unsatisfiable core [2021-12-18 01:23:18,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 01:23:18,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-18 01:23:21,941 INFO L354 Elim1Store]: treesize reduction 120, result has 21.6 percent of original size [2021-12-18 01:23:21,941 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 176 treesize of output 140 [2021-12-18 01:23:22,368 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 67 proven. 8 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-12-18 01:23:22,368 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 01:23:27,723 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2021-12-18 01:23:27,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1494837039] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 01:23:27,723 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-18 01:23:27,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 31, 17] total 56 [2021-12-18 01:23:27,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759392737] [2021-12-18 01:23:27,724 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-18 01:23:27,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2021-12-18 01:23:27,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 01:23:27,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2021-12-18 01:23:27,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=2895, Unknown=0, NotChecked=0, Total=3080 [2021-12-18 01:23:27,727 INFO L87 Difference]: Start difference. First operand 101 states and 123 transitions. Second operand has 56 states, 48 states have (on average 3.1041666666666665) internal successors, (149), 44 states have internal predecessors, (149), 19 states have call successors, (48), 7 states have call predecessors, (48), 14 states have return successors, (47), 18 states have call predecessors, (47), 17 states have call successors, (47) [2021-12-18 01:23:28,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 01:23:28,716 INFO L93 Difference]: Finished difference Result 116 states and 135 transitions. [2021-12-18 01:23:28,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-18 01:23:28,717 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 48 states have (on average 3.1041666666666665) internal successors, (149), 44 states have internal predecessors, (149), 19 states have call successors, (48), 7 states have call predecessors, (48), 14 states have return successors, (47), 18 states have call predecessors, (47), 17 states have call successors, (47) Word has length 126 [2021-12-18 01:23:28,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 01:23:28,717 INFO L225 Difference]: With dead ends: 116 [2021-12-18 01:23:28,717 INFO L226 Difference]: Without dead ends: 0 [2021-12-18 01:23:28,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 241 SyntacticMatches, 3 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 913 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=275, Invalid=4281, Unknown=0, NotChecked=0, Total=4556 [2021-12-18 01:23:28,720 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 46 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 81 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-18 01:23:28,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 586 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 566 Invalid, 0 Unknown, 81 Unchecked, 0.5s Time] [2021-12-18 01:23:28,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-18 01:23:28,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-18 01:23:28,722 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) [2021-12-18 01:23:28,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-18 01:23:28,722 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 126 [2021-12-18 01:23:28,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 01:23:28,722 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-18 01:23:28,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 48 states have (on average 3.1041666666666665) internal successors, (149), 44 states have internal predecessors, (149), 19 states have call successors, (48), 7 states have call predecessors, (48), 14 states have return successors, (47), 18 states have call predecessors, (47), 17 states have call successors, (47) [2021-12-18 01:23:28,723 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-18 01:23:28,723 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-18 01:23:28,725 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-18 01:23:28,753 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-18 01:23:28,939 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,SelfDestructingSolverStorable6 [2021-12-18 01:23:28,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-18 01:23:29,150 INFO L854 garLoopResultBuilder]: At program point L6816(lines 6807 6817) the Hoare annotation is: (and (not (= 16 |ensure_string_is_allocated_bounded_length_#in~max_size#1|)) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= |ensure_string_is_allocated_bounded_length_~max_size#1| 16)) (not (= 0 |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base|)) (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.offset| 0) (not (= 0 |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_#res#1.base|)) (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_#res#1.offset| 0)) [2021-12-18 01:23:29,150 INFO L858 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthEXIT(lines 6801 6805) no Hoare annotation was computed. [2021-12-18 01:23:29,151 INFO L858 garLoopResultBuilder]: For program point L6811-1(lines 6811 6812) no Hoare annotation was computed. [2021-12-18 01:23:29,151 INFO L854 garLoopResultBuilder]: At program point L6811(line 6811) the Hoare annotation is: (and (not (= 16 |ensure_string_is_allocated_bounded_length_#in~max_size#1|)) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= |ensure_string_is_allocated_bounded_length_~max_size#1| 16)) (not (= 0 |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base|)) (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.offset| 0)) [2021-12-18 01:23:29,151 INFO L858 garLoopResultBuilder]: For program point L6811-5(lines 6811 6812) no Hoare annotation was computed. [2021-12-18 01:23:29,151 INFO L858 garLoopResultBuilder]: For program point L6808-1(line 6808) no Hoare annotation was computed. [2021-12-18 01:23:29,151 INFO L854 garLoopResultBuilder]: At program point L6808(line 6808) the Hoare annotation is: (let ((.cse0 (not (= 16 |ensure_string_is_allocated_bounded_length_#in~max_size#1|)))) (and (= |#memory_int| |old(#memory_int)|) (= |#valid| |old(#valid)|) (= |#length| |old(#length)|) (or .cse0 (<= 0 (+ (* 18446744073709551616 (div (+ (* |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1| (- 1)) 15) 18446744073709551616)) |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1|))) (= |#memory_real| |old(#memory_real)|) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= |ensure_string_is_allocated_bounded_length_~max_size#1| 16)) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (or .cse0 (let ((.cse1 (div |ensure_string_is_allocated_bounded_length_~len~1#1| 18446744073709551616))) (<= (* 18446744073709551616 .cse1) (+ (* 18446744073709551616 (div (+ (* .cse1 18446744073709551616) (* |ensure_string_is_allocated_bounded_length_~len~1#1| (- 1)) 15) 18446744073709551616)) |ensure_string_is_allocated_bounded_length_~len~1#1|)))) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))) [2021-12-18 01:23:29,151 INFO L858 garLoopResultBuilder]: For program point L6811-3(line 6811) no Hoare annotation was computed. [2021-12-18 01:23:29,151 INFO L854 garLoopResultBuilder]: At program point L6811-2(line 6811) the Hoare annotation is: (and (not (= 16 |ensure_string_is_allocated_bounded_length_#in~max_size#1|)) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= |ensure_string_is_allocated_bounded_length_~max_size#1| 16)) (not (= 0 |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base|)) (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.offset| 0)) [2021-12-18 01:23:29,151 INFO L854 garLoopResultBuilder]: At program point L6802(line 6802) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= |#valid| |old(#valid)|) (= |#length| |old(#length)|) (= |#memory_real| |old(#memory_real)|) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= |ensure_string_is_allocated_bounded_length_~max_size#1| 16)) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2021-12-18 01:23:29,151 INFO L858 garLoopResultBuilder]: For program point L6803-1(line 6803) no Hoare annotation was computed. [2021-12-18 01:23:29,151 INFO L854 garLoopResultBuilder]: At program point L6803(line 6803) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= |#valid| |old(#valid)|) (= |#length| |old(#length)|) (= |#memory_real| |old(#memory_real)|) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= |ensure_string_is_allocated_bounded_length_~max_size#1| 16)) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2021-12-18 01:23:29,151 INFO L854 garLoopResultBuilder]: At program point ensure_string_is_allocated_bounded_lengthENTRY(lines 6801 6805) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= |#valid| |old(#valid)|) (= |#length| |old(#length)|) (= |#memory_real| |old(#memory_real)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2021-12-18 01:23:29,152 INFO L858 garLoopResultBuilder]: For program point L6802-1(line 6802) no Hoare annotation was computed. [2021-12-18 01:23:29,152 INFO L858 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthFINAL(lines 6801 6805) no Hoare annotation was computed. [2021-12-18 01:23:29,152 INFO L854 garLoopResultBuilder]: At program point bounded_mallocENTRY(lines 6883 6888) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |#length| |old(#length)|)) [2021-12-18 01:23:29,152 INFO L858 garLoopResultBuilder]: For program point bounded_mallocFINAL(lines 6883 6888) no Hoare annotation was computed. [2021-12-18 01:23:29,152 INFO L858 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6883 6888) no Hoare annotation was computed. [2021-12-18 01:23:29,152 INFO L858 garLoopResultBuilder]: For program point L6884-1(lines 6884 6886) no Hoare annotation was computed. [2021-12-18 01:23:29,152 INFO L854 garLoopResultBuilder]: At program point L6884(lines 6884 6886) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |#length| |old(#length)|) (= |bounded_malloc_#in~size| bounded_malloc_~size)) [2021-12-18 01:23:29,152 INFO L858 garLoopResultBuilder]: For program point nondet_boolFINAL(line 261) no Hoare annotation was computed. [2021-12-18 01:23:29,152 INFO L858 garLoopResultBuilder]: For program point nondet_boolEXIT(line 261) no Hoare annotation was computed. [2021-12-18 01:23:29,152 INFO L861 garLoopResultBuilder]: At program point nondet_boolENTRY(line 261) the Hoare annotation is: true [2021-12-18 01:23:29,152 INFO L858 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2021-12-18 01:23:29,152 INFO L861 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 210 212) the Hoare annotation is: true [2021-12-18 01:23:29,152 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-12-18 01:23:29,152 INFO L858 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2021-12-18 01:23:29,153 INFO L858 garLoopResultBuilder]: For program point L8097(lines 8097 8101) no Hoare annotation was computed. [2021-12-18 01:23:29,153 INFO L858 garLoopResultBuilder]: For program point L8095-4(lines 8095 8108) no Hoare annotation was computed. [2021-12-18 01:23:29,153 INFO L861 garLoopResultBuilder]: At program point L8095-3(lines 8095 8108) the Hoare annotation is: true [2021-12-18 01:23:29,153 INFO L858 garLoopResultBuilder]: For program point L8095-2(lines 8095 8108) no Hoare annotation was computed. [2021-12-18 01:23:29,153 INFO L858 garLoopResultBuilder]: For program point aws_array_eq_c_strFINAL(lines 8078 8111) no Hoare annotation was computed. [2021-12-18 01:23:29,153 INFO L858 garLoopResultBuilder]: For program point L8083(lines 8083 8085) no Hoare annotation was computed. [2021-12-18 01:23:29,153 INFO L861 garLoopResultBuilder]: At program point L8080-1(line 8080) the Hoare annotation is: true [2021-12-18 01:23:29,153 INFO L861 garLoopResultBuilder]: At program point L8080(line 8080) the Hoare annotation is: true [2021-12-18 01:23:29,153 INFO L861 garLoopResultBuilder]: At program point aws_array_eq_c_strENTRY(lines 8078 8111) the Hoare annotation is: true [2021-12-18 01:23:29,153 INFO L858 garLoopResultBuilder]: For program point L8103(lines 8103 8107) no Hoare annotation was computed. [2021-12-18 01:23:29,153 INFO L858 garLoopResultBuilder]: For program point aws_array_eq_c_strEXIT(lines 8078 8111) no Hoare annotation was computed. [2021-12-18 01:23:29,153 INFO L858 garLoopResultBuilder]: For program point can_fail_allocatorFINAL(lines 6890 6892) no Hoare annotation was computed. [2021-12-18 01:23:29,153 INFO L858 garLoopResultBuilder]: For program point can_fail_allocatorEXIT(lines 6890 6892) no Hoare annotation was computed. [2021-12-18 01:23:29,153 INFO L861 garLoopResultBuilder]: At program point can_fail_allocatorENTRY(lines 6890 6892) the Hoare annotation is: true [2021-12-18 01:23:29,153 INFO L861 garLoopResultBuilder]: At program point aws_string_is_validENTRY(lines 6253 6258) the Hoare annotation is: true [2021-12-18 01:23:29,154 INFO L858 garLoopResultBuilder]: For program point L6257-2(line 6257) no Hoare annotation was computed. [2021-12-18 01:23:29,154 INFO L858 garLoopResultBuilder]: For program point L6257-3(line 6257) no Hoare annotation was computed. [2021-12-18 01:23:29,154 INFO L858 garLoopResultBuilder]: For program point L6257(line 6257) no Hoare annotation was computed. [2021-12-18 01:23:29,154 INFO L858 garLoopResultBuilder]: For program point aws_string_is_validFINAL(lines 6253 6258) no Hoare annotation was computed. [2021-12-18 01:23:29,154 INFO L858 garLoopResultBuilder]: For program point L6257-5(line 6257) no Hoare annotation was computed. [2021-12-18 01:23:29,154 INFO L858 garLoopResultBuilder]: For program point aws_string_is_validEXIT(lines 6253 6258) no Hoare annotation was computed. [2021-12-18 01:23:29,154 INFO L858 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2021-12-18 01:23:29,154 INFO L861 garLoopResultBuilder]: At program point nondet_uint64_tENTRY(line 266) the Hoare annotation is: true [2021-12-18 01:23:29,154 INFO L858 garLoopResultBuilder]: For program point nondet_uint64_tFINAL(line 266) no Hoare annotation was computed. [2021-12-18 01:23:29,154 INFO L861 garLoopResultBuilder]: At program point L8925(line 8925) the Hoare annotation is: true [2021-12-18 01:23:29,154 INFO L858 garLoopResultBuilder]: For program point L7579(line 7579) no Hoare annotation was computed. [2021-12-18 01:23:29,154 INFO L858 garLoopResultBuilder]: For program point L7100(lines 7100 7113) no Hoare annotation was computed. [2021-12-18 01:23:29,154 INFO L858 garLoopResultBuilder]: For program point L7579-5(line 7579) no Hoare annotation was computed. [2021-12-18 01:23:29,154 INFO L854 garLoopResultBuilder]: At program point L7579-4(line 7579) the Hoare annotation is: (or (and (= 0 |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.offset|) (not (= |ULTIMATE.start_ensure_c_str_is_allocated_#res#1.base| 0)) (not (= |ULTIMATE.start_aws_string_eq_c_str_~c_str#1.base| 0)) (not (= |ULTIMATE.start_ensure_c_str_is_allocated_~str~1#1.base| 0)) (= 0 |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.base|)) (and (= 0 |ULTIMATE.start_aws_string_eq_c_str_harness_~c_str~0#1.offset|) (= 0 |ULTIMATE.start_aws_string_eq_c_str_harness_~c_str~0#1.base|))) [2021-12-18 01:23:29,155 INFO L858 garLoopResultBuilder]: For program point L7579-3(line 7579) no Hoare annotation was computed. [2021-12-18 01:23:29,155 INFO L854 garLoopResultBuilder]: At program point L7579-2(line 7579) the Hoare annotation is: (or (and (= 0 |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.offset|) (not (= |ULTIMATE.start_ensure_c_str_is_allocated_#res#1.base| 0)) (not (= |ULTIMATE.start_aws_string_eq_c_str_~c_str#1.base| 0)) (not (= |ULTIMATE.start_ensure_c_str_is_allocated_~str~1#1.base| 0)) (= 0 |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.base|)) (and (= 0 |ULTIMATE.start_aws_string_eq_c_str_harness_~c_str~0#1.offset|) (= 0 |ULTIMATE.start_aws_string_eq_c_str_harness_~c_str~0#1.base|))) [2021-12-18 01:23:29,155 INFO L854 garLoopResultBuilder]: At program point L8921(line 8921) the Hoare annotation is: false [2021-12-18 01:23:29,155 INFO L858 garLoopResultBuilder]: For program point L8921-1(line 8921) no Hoare annotation was computed. [2021-12-18 01:23:29,155 INFO L858 garLoopResultBuilder]: For program point L6820-1(line 6820) no Hoare annotation was computed. [2021-12-18 01:23:29,155 INFO L854 garLoopResultBuilder]: At program point L6820(line 6820) the Hoare annotation is: (and (= 0 |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.offset|) (= 0 |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.base|)) [2021-12-18 01:23:29,155 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-18 01:23:29,155 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-18 01:23:29,155 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-18 01:23:29,155 INFO L858 garLoopResultBuilder]: For program point L7580(lines 7580 7588) no Hoare annotation was computed. [2021-12-18 01:23:29,155 INFO L858 garLoopResultBuilder]: For program point L7101-1(lines 7100 7113) no Hoare annotation was computed. [2021-12-18 01:23:29,155 INFO L854 garLoopResultBuilder]: At program point L7101(line 7101) the Hoare annotation is: false [2021-12-18 01:23:29,155 INFO L858 garLoopResultBuilder]: For program point L8918(lines 8918 8923) no Hoare annotation was computed. [2021-12-18 01:23:29,155 INFO L854 garLoopResultBuilder]: At program point L6821-1(line 6821) the Hoare annotation is: (and (= 0 |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.offset|) (= 0 |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.base|)) [2021-12-18 01:23:29,155 INFO L854 garLoopResultBuilder]: At program point L6821(line 6821) the Hoare annotation is: (and (= 0 |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.offset|) (= 0 |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.base|)) [2021-12-18 01:23:29,156 INFO L858 garLoopResultBuilder]: For program point L7589(lines 7589 7597) no Hoare annotation was computed. [2021-12-18 01:23:29,156 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-18 01:23:29,156 INFO L854 garLoopResultBuilder]: At program point L6272(lines 6263 6273) the Hoare annotation is: false [2021-12-18 01:23:29,156 INFO L858 garLoopResultBuilder]: For program point L8919-2(line 8919) no Hoare annotation was computed. [2021-12-18 01:23:29,156 INFO L854 garLoopResultBuilder]: At program point L8915(line 8915) the Hoare annotation is: (and (= 0 |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.offset|) (= 0 |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.base|)) [2021-12-18 01:23:29,156 INFO L858 garLoopResultBuilder]: For program point L8915-1(lines 8915 8916) no Hoare annotation was computed. [2021-12-18 01:23:29,156 INFO L854 garLoopResultBuilder]: At program point L8919(line 8919) the Hoare annotation is: false [2021-12-18 01:23:29,156 INFO L854 garLoopResultBuilder]: At program point L8919-1(line 8919) the Hoare annotation is: false [2021-12-18 01:23:29,156 INFO L854 garLoopResultBuilder]: At program point L7598(line 7598) the Hoare annotation is: (or (and (= 0 |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.offset|) (not (= |ULTIMATE.start_ensure_c_str_is_allocated_#res#1.base| 0)) (not (= |ULTIMATE.start_aws_string_eq_c_str_~c_str#1.base| 0)) (not (= |ULTIMATE.start_ensure_c_str_is_allocated_~str~1#1.base| 0)) (= 0 |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.base|)) (and (= 0 |ULTIMATE.start_aws_string_eq_c_str_harness_~c_str~0#1.offset|) (= 0 |ULTIMATE.start_aws_string_eq_c_str_harness_~c_str~0#1.base|))) [2021-12-18 01:23:29,156 INFO L854 garLoopResultBuilder]: At program point L6826(line 6826) the Hoare annotation is: (and (= 0 |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.offset|) (not (= |ULTIMATE.start_ensure_c_str_is_allocated_~str~1#1.base| 0)) (= 0 |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.base|)) [2021-12-18 01:23:29,156 INFO L858 garLoopResultBuilder]: For program point L8915-3(lines 8915 8916) no Hoare annotation was computed. [2021-12-18 01:23:29,156 INFO L854 garLoopResultBuilder]: At program point L7598-2(lines 7577 7599) the Hoare annotation is: (or (and (= 0 |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.offset|) (not (= |ULTIMATE.start_ensure_c_str_is_allocated_#res#1.base| 0)) (not (= |ULTIMATE.start_aws_string_eq_c_str_~c_str#1.base| 0)) (not (= |ULTIMATE.start_ensure_c_str_is_allocated_~str~1#1.base| 0)) (= 0 |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.base|)) (and (= 0 |ULTIMATE.start_aws_string_eq_c_str_harness_~c_str~0#1.offset|) (= 0 |ULTIMATE.start_aws_string_eq_c_str_harness_~c_str~0#1.base|))) [2021-12-18 01:23:29,156 INFO L858 garLoopResultBuilder]: For program point L8911(lines 8911 8924) no Hoare annotation was computed. [2021-12-18 01:23:29,157 INFO L858 garLoopResultBuilder]: For program point L7598-1(line 7598) no Hoare annotation was computed. [2021-12-18 01:23:29,157 INFO L858 garLoopResultBuilder]: For program point L6822(line 6822) no Hoare annotation was computed. [2021-12-18 01:23:29,157 INFO L858 garLoopResultBuilder]: For program point L7111-1(line 7111) no Hoare annotation was computed. [2021-12-18 01:23:29,157 INFO L854 garLoopResultBuilder]: At program point L7111(line 7111) the Hoare annotation is: false [2021-12-18 01:23:29,157 INFO L858 garLoopResultBuilder]: For program point L6826-1(line 6826) no Hoare annotation was computed. [2021-12-18 01:23:29,157 INFO L858 garLoopResultBuilder]: For program point L7107-1(line 7107) no Hoare annotation was computed. [2021-12-18 01:23:29,157 INFO L854 garLoopResultBuilder]: At program point L7107(line 7107) the Hoare annotation is: false [2021-12-18 01:23:29,157 INFO L854 garLoopResultBuilder]: At program point L8920(line 8920) the Hoare annotation is: false [2021-12-18 01:23:29,157 INFO L858 garLoopResultBuilder]: For program point L8920-1(line 8920) no Hoare annotation was computed. [2021-12-18 01:23:29,157 INFO L858 garLoopResultBuilder]: For program point L8912-3(line 8912) no Hoare annotation was computed. [2021-12-18 01:23:29,157 INFO L858 garLoopResultBuilder]: For program point L8912-5(lines 8912 8913) no Hoare annotation was computed. [2021-12-18 01:23:29,157 INFO L861 garLoopResultBuilder]: At program point L8912(line 8912) the Hoare annotation is: true [2021-12-18 01:23:29,157 INFO L854 garLoopResultBuilder]: At program point L6827(lines 6819 6828) the Hoare annotation is: (and (= 0 |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.offset|) (not (= |ULTIMATE.start_ensure_c_str_is_allocated_#res#1.base| 0)) (not (= |ULTIMATE.start_ensure_c_str_is_allocated_~str~1#1.base| 0)) (= 0 |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.base|)) [2021-12-18 01:23:29,157 INFO L858 garLoopResultBuilder]: For program point L8912-1(lines 8912 8913) no Hoare annotation was computed. [2021-12-18 01:23:29,160 INFO L861 garLoopResultBuilder]: At program point L8912-2(line 8912) the Hoare annotation is: true [2021-12-18 01:23:29,160 INFO L858 garLoopResultBuilder]: For program point L7108-1(lines 7108 7110) no Hoare annotation was computed. [2021-12-18 01:23:29,160 INFO L854 garLoopResultBuilder]: At program point L7108(lines 7108 7110) the Hoare annotation is: false [2021-12-18 01:23:29,160 INFO L858 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-12-18 01:23:29,161 INFO L861 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 222 224) the Hoare annotation is: true [2021-12-18 01:23:29,161 INFO L858 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-12-18 01:23:29,161 INFO L858 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2021-12-18 01:23:29,161 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2021-12-18 01:23:29,161 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-12-18 01:23:29,164 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-12-18 01:23:29,165 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-18 01:23:29,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 01:23:29 BoogieIcfgContainer [2021-12-18 01:23:29,178 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-18 01:23:29,178 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-18 01:23:29,178 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-18 01:23:29,179 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-18 01:23:29,179 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 01:23:11" (3/4) ... [2021-12-18 01:23:29,181 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-18 01:23:29,187 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ensure_string_is_allocated_bounded_length [2021-12-18 01:23:29,187 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2021-12-18 01:23:29,187 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2021-12-18 01:23:29,187 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2021-12-18 01:23:29,188 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2021-12-18 01:23:29,188 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-12-18 01:23:29,188 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_eq_c_str [2021-12-18 01:23:29,188 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2021-12-18 01:23:29,188 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_is_valid [2021-12-18 01:23:29,196 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2021-12-18 01:23:29,196 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-12-18 01:23:29,197 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-18 01:23:29,198 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-18 01:23:29,220 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((0 == str && !(\result == 0)) && !(str == 0)) && 0 == str [2021-12-18 01:23:29,221 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((0 == str && !(\result == 0)) && !(c_str == 0)) && !(str == 0)) && 0 == str) || (0 == c_str && 0 == c_str) [2021-12-18 01:23:29,221 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(16 == \old(max_size)) && (\old(max_size) == max_size || max_size == 16)) && !(0 == str)) && str == 0) && !(0 == \result)) && \result == 0 [2021-12-18 01:23:29,331 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-18 01:23:29,331 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-18 01:23:29,332 INFO L158 Benchmark]: Toolchain (without parser) took 20752.93ms. Allocated memory was 100.7MB in the beginning and 297.8MB in the end (delta: 197.1MB). Free memory was 63.8MB in the beginning and 101.5MB in the end (delta: -37.7MB). Peak memory consumption was 156.6MB. Max. memory is 16.1GB. [2021-12-18 01:23:29,332 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 100.7MB. Free memory is still 59.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-18 01:23:29,332 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2139.05ms. Allocated memory was 100.7MB in the beginning and 169.9MB in the end (delta: 69.2MB). Free memory was 63.4MB in the beginning and 102.5MB in the end (delta: -39.1MB). Peak memory consumption was 59.1MB. Max. memory is 16.1GB. [2021-12-18 01:23:29,332 INFO L158 Benchmark]: Boogie Procedure Inliner took 200.99ms. Allocated memory is still 169.9MB. Free memory was 102.5MB in the beginning and 93.1MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-18 01:23:29,333 INFO L158 Benchmark]: Boogie Preprocessor took 94.76ms. Allocated memory is still 169.9MB. Free memory was 93.1MB in the beginning and 88.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-18 01:23:29,333 INFO L158 Benchmark]: RCFGBuilder took 666.81ms. Allocated memory is still 169.9MB. Free memory was 88.9MB in the beginning and 102.0MB in the end (delta: -13.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-12-18 01:23:29,333 INFO L158 Benchmark]: TraceAbstraction took 17491.16ms. Allocated memory was 169.9MB in the beginning and 297.8MB in the end (delta: 127.9MB). Free memory was 101.3MB in the beginning and 175.9MB in the end (delta: -74.7MB). Peak memory consumption was 54.3MB. Max. memory is 16.1GB. [2021-12-18 01:23:29,334 INFO L158 Benchmark]: Witness Printer took 152.87ms. Allocated memory is still 297.8MB. Free memory was 175.9MB in the beginning and 101.5MB in the end (delta: 74.4MB). Peak memory consumption was 71.3MB. Max. memory is 16.1GB. [2021-12-18 01:23:29,335 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 100.7MB. Free memory is still 59.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2139.05ms. Allocated memory was 100.7MB in the beginning and 169.9MB in the end (delta: 69.2MB). Free memory was 63.4MB in the beginning and 102.5MB in the end (delta: -39.1MB). Peak memory consumption was 59.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 200.99ms. Allocated memory is still 169.9MB. Free memory was 102.5MB in the beginning and 93.1MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 94.76ms. Allocated memory is still 169.9MB. Free memory was 93.1MB in the beginning and 88.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 666.81ms. Allocated memory is still 169.9MB. Free memory was 88.9MB in the beginning and 102.0MB in the end (delta: -13.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 17491.16ms. Allocated memory was 169.9MB in the beginning and 297.8MB in the end (delta: 127.9MB). Free memory was 101.3MB in the beginning and 175.9MB in the end (delta: -74.7MB). Peak memory consumption was 54.3MB. Max. memory is 16.1GB. * Witness Printer took 152.87ms. Allocated memory is still 297.8MB. Free memory was 175.9MB in the beginning and 101.5MB in the end (delta: 74.4MB). Peak memory consumption was 71.3MB. 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 10 procedures, 107 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 17.4s, OverallIterations: 7, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 429 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 403 mSDsluCounter, 4010 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 81 IncrementalHoareTripleChecker+Unchecked, 3275 mSDsCounter, 255 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2624 IncrementalHoareTripleChecker+Invalid, 2960 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 255 mSolverCounterUnsat, 735 mSDtfsCounter, 2624 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 687 GetRequests, 549 SyntacticMatches, 4 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1062 ImplicationChecksByTransitivity, 6.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred in iteration=0, InterpolantAutomatonStates: 64, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 41 LocationsWithAnnotation, 152 PreInvPairs, 176 NumberOfFragments, 407 HoareAnnotationTreeSize, 152 FomulaSimplifications, 4 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 41 FomulaSimplificationsInter, 164 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 12.3s InterpolantComputationTime, 759 NumberOfCodeBlocks, 759 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 973 ConstructedInterpolants, 28 QuantifiedInterpolants, 7779 SizeOfPredicates, 40 NumberOfNonLiveVariables, 1909 ConjunctsInSsa, 125 ConjunctsInUnsatCore, 11 InterpolantComputations, 5 PerfectInterpolantSequences, 717/783 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: 8095]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6263]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 8925]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7577]: Loop Invariant Derived loop invariant: ((((0 == str && !(\result == 0)) && !(c_str == 0)) && !(str == 0)) && 0 == str) || (0 == c_str && 0 == c_str) - InvariantResult [Line: 6807]: Loop Invariant Derived loop invariant: ((((!(16 == \old(max_size)) && (\old(max_size) == max_size || max_size == 16)) && !(0 == str)) && str == 0) && !(0 == \result)) && \result == 0 - InvariantResult [Line: 6819]: Loop Invariant Derived loop invariant: ((0 == str && !(\result == 0)) && !(str == 0)) && 0 == str RESULT: Ultimate proved your program to be correct! [2021-12-18 01:23:29,360 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