./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 839c364b 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 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 17:09:45,411 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 17:09:45,438 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 17:09:45,473 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 17:09:45,474 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 17:09:45,477 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 17:09:45,478 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 17:09:45,480 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 17:09:45,482 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 17:09:45,485 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 17:09:45,486 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 17:09:45,487 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 17:09:45,487 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 17:09:45,489 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 17:09:45,491 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 17:09:45,493 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 17:09:45,494 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 17:09:45,495 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 17:09:45,497 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 17:09:45,502 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 17:09:45,503 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 17:09:45,504 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 17:09:45,505 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 17:09:45,506 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 17:09:45,511 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 17:09:45,511 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 17:09:45,511 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 17:09:45,513 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 17:09:45,513 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 17:09:45,514 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 17:09:45,514 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 17:09:45,515 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 17:09:45,516 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 17:09:45,517 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 17:09:45,518 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 17:09:45,518 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 17:09:45,518 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 17:09:45,519 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 17:09:45,519 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 17:09:45,520 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 17:09:45,521 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 17:09:45,521 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 17:09:45,553 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 17:09:45,553 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 17:09:45,554 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 17:09:45,554 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 17:09:45,554 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 17:09:45,555 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 17:09:45,555 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 17:09:45,555 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 17:09:45,555 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 17:09:45,556 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 17:09:45,556 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 17:09:45,556 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 17:09:45,556 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 17:09:45,557 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 17:09:45,557 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 17:09:45,557 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 17:09:45,557 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 17:09:45,557 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 17:09:45,557 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 17:09:45,557 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 17:09:45,558 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 17:09:45,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:09:45,558 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 17:09:45,558 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 17:09:45,558 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 17:09:45,558 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 17:09:45,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 17:09:45,559 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 17:09:45,559 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 17:09:45,559 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 17:09:45,559 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 17:09:45,559 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b64b813c3d856efe8cd859d380d09d4b682c371a0a165a5a5fe0d11dc206dad7 [2021-12-14 17:09:45,764 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 17:09:45,796 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 17:09:45,798 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 17:09:45,799 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 17:09:45,799 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 17:09:45,801 INFO L432 ainManager$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 [2021-12-14 17:09:45,854 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ff155986/7229dbd286fe41af87a2bcbfcee48eb2/FLAGf2300b58d [2021-12-14 17:09:46,451 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 17:09:46,451 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness.i [2021-12-14 17:09:46,477 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ff155986/7229dbd286fe41af87a2bcbfcee48eb2/FLAGf2300b58d [2021-12-14 17:09:46,838 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ff155986/7229dbd286fe41af87a2bcbfcee48eb2 [2021-12-14 17:09:46,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 17:09:46,841 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 17:09:46,842 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 17:09:46,842 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 17:09:46,845 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 17:09:46,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:09:46" (1/1) ... [2021-12-14 17:09:46,847 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7de49181 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:09:46, skipping insertion in model container [2021-12-14 17:09:46,847 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:09:46" (1/1) ... [2021-12-14 17:09:46,851 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 17:09:46,920 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 17:09:47,100 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] [2021-12-14 17:09:47,106 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] [2021-12-14 17:09:47,577 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:09:47,578 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:09:47,578 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:09:47,579 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:09:47,580 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:09:47,587 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:09:47,590 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:09:47,592 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:09:47,592 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:09:47,811 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-14 17:09:47,812 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-14 17:09:47,813 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-14 17:09:47,815 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-14 17:09:47,819 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-14 17:09:47,823 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-14 17:09:47,823 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-14 17:09:47,824 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-14 17:09:47,824 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-14 17:09:47,825 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-14 17:09:47,943 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-14 17:09:48,058 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:09:48,059 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:09:48,134 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:09:48,181 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 17:09:48,198 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] [2021-12-14 17:09:48,200 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] [2021-12-14 17:09:48,224 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:09:48,225 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:09:48,226 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:09:48,226 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:09:48,226 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:09:48,230 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:09:48,231 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:09:48,232 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:09:48,233 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:09:48,254 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-14 17:09:48,255 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-14 17:09:48,258 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-14 17:09:48,258 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-14 17:09:48,259 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-14 17:09:48,260 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-14 17:09:48,260 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-14 17:09:48,260 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-14 17:09:48,261 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-14 17:09:48,261 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-14 17:09:48,272 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-14 17:09:48,317 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:09:48,317 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-14 17:09:48,330 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:09:48,473 INFO L208 MainTranslator]: Completed translation [2021-12-14 17:09:48,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:09:48 WrapperNode [2021-12-14 17:09:48,474 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 17:09:48,475 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 17:09:48,475 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 17:09:48,475 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 17:09:48,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:09:48" (1/1) ... [2021-12-14 17:09:48,567 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:09:48" (1/1) ... [2021-12-14 17:09:48,635 INFO L137 Inliner]: procedures = 681, calls = 2272, calls flagged for inlining = 60, calls inlined = 8, statements flattened = 391 [2021-12-14 17:09:48,635 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 17:09:48,635 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 17:09:48,635 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 17:09:48,636 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 17:09:48,642 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:09:48" (1/1) ... [2021-12-14 17:09:48,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:09:48" (1/1) ... [2021-12-14 17:09:48,657 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:09:48" (1/1) ... [2021-12-14 17:09:48,658 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:09:48" (1/1) ... [2021-12-14 17:09:48,686 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:09:48" (1/1) ... [2021-12-14 17:09:48,697 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:09:48" (1/1) ... [2021-12-14 17:09:48,701 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:09:48" (1/1) ... [2021-12-14 17:09:48,711 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 17:09:48,715 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 17:09:48,715 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 17:09:48,716 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 17:09:48,716 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:09:48" (1/1) ... [2021-12-14 17:09:48,723 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:09:48,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 17:09:48,758 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) [2021-12-14 17:09:48,775 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 [2021-12-14 17:09:48,793 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_c_str [2021-12-14 17:09:48,793 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_c_str [2021-12-14 17:09:48,793 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2021-12-14 17:09:48,793 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2021-12-14 17:09:48,793 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2021-12-14 17:09:48,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2021-12-14 17:09:48,794 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-12-14 17:09:48,794 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-12-14 17:09:48,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 17:09:48,795 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-14 17:09:48,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-14 17:09:48,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 17:09:48,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 17:09:48,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 17:09:48,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 17:09:48,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 17:09:48,796 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-12-14 17:09:48,797 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-12-14 17:09:48,797 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-14 17:09:48,797 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-14 17:09:48,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 17:09:48,797 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-12-14 17:09:48,797 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-12-14 17:09:48,797 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-12-14 17:09:48,797 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-12-14 17:09:48,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 17:09:48,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 17:09:49,034 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 17:09:49,036 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 17:09:49,269 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 17:09:49,273 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 17:09:49,274 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-14 17:09:49,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:09:49 BoogieIcfgContainer [2021-12-14 17:09:49,275 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 17:09:49,276 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 17:09:49,276 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 17:09:49,278 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 17:09:49,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:09:46" (1/3) ... [2021-12-14 17:09:49,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34580f99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:09:49, skipping insertion in model container [2021-12-14 17:09:49,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:09:48" (2/3) ... [2021-12-14 17:09:49,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34580f99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:09:49, skipping insertion in model container [2021-12-14 17:09:49,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:09:49" (3/3) ... [2021-12-14 17:09:49,280 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_string_eq_c_str_harness.i [2021-12-14 17:09:49,283 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 17:09:49,284 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 17:09:49,311 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 17:09:49,315 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 [2021-12-14 17:09:49,315 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 17:09:49,326 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) [2021-12-14 17:09:49,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-12-14 17:09:49,330 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:09:49,331 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] [2021-12-14 17:09:49,342 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:09:49,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:09:49,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1676862830, now seen corresponding path program 1 times [2021-12-14 17:09:49,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:09:49,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223984522] [2021-12-14 17:09:49,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:09:49,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:09:49,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:49,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:09:49,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:49,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:09:49,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:49,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-14 17:09:49,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:49,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-14 17:09:49,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:49,674 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-14 17:09:49,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:09:49,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223984522] [2021-12-14 17:09:49,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223984522] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:09:49,677 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:09:49,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-14 17:09:49,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699953186] [2021-12-14 17:09:49,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:09:49,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-14 17:09:49,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:09:49,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-14 17:09:49,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-14 17:09:49,708 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) [2021-12-14 17:09:49,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:09:49,735 INFO L93 Difference]: Finished difference Result 205 states and 281 transitions. [2021-12-14 17:09:49,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-14 17:09:49,737 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 [2021-12-14 17:09:49,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:09:49,743 INFO L225 Difference]: With dead ends: 205 [2021-12-14 17:09:49,743 INFO L226 Difference]: Without dead ends: 101 [2021-12-14 17:09:49,746 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 [2021-12-14 17:09:49,748 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 [2021-12-14 17:09:49,748 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] [2021-12-14 17:09:49,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-12-14 17:09:49,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2021-12-14 17:09:49,776 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) [2021-12-14 17:09:49,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 128 transitions. [2021-12-14 17:09:49,779 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 128 transitions. Word has length 36 [2021-12-14 17:09:49,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:09:49,780 INFO L470 AbstractCegarLoop]: Abstraction has 101 states and 128 transitions. [2021-12-14 17:09:49,780 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) [2021-12-14 17:09:49,780 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 128 transitions. [2021-12-14 17:09:49,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-12-14 17:09:49,782 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:09:49,782 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] [2021-12-14 17:09:49,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 17:09:49,783 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:09:49,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:09:49,784 INFO L85 PathProgramCache]: Analyzing trace with hash -12080912, now seen corresponding path program 1 times [2021-12-14 17:09:49,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:09:49,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20708844] [2021-12-14 17:09:49,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:09:49,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:09:49,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:49,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:09:49,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:49,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:09:49,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:49,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-14 17:09:49,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:49,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-14 17:09:49,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:49,894 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-14 17:09:49,894 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:09:49,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20708844] [2021-12-14 17:09:49,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20708844] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:09:49,895 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:09:49,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 17:09:49,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199256721] [2021-12-14 17:09:49,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:09:49,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 17:09:49,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:09:49,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 17:09:49,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 17:09:49,897 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) [2021-12-14 17:09:49,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:09:49,919 INFO L93 Difference]: Finished difference Result 148 states and 186 transitions. [2021-12-14 17:09:49,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-14 17:09:49,920 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 [2021-12-14 17:09:49,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:09:49,921 INFO L225 Difference]: With dead ends: 148 [2021-12-14 17:09:49,921 INFO L226 Difference]: Without dead ends: 101 [2021-12-14 17:09:49,922 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 [2021-12-14 17:09:49,923 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 [2021-12-14 17:09:49,923 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] [2021-12-14 17:09:49,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-12-14 17:09:49,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2021-12-14 17:09:49,931 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) [2021-12-14 17:09:49,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 127 transitions. [2021-12-14 17:09:49,932 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 127 transitions. Word has length 36 [2021-12-14 17:09:49,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:09:49,933 INFO L470 AbstractCegarLoop]: Abstraction has 101 states and 127 transitions. [2021-12-14 17:09:49,933 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) [2021-12-14 17:09:49,933 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 127 transitions. [2021-12-14 17:09:49,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-12-14 17:09:49,935 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:09:49,935 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] [2021-12-14 17:09:49,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 17:09:49,935 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:09:49,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:09:49,936 INFO L85 PathProgramCache]: Analyzing trace with hash 2108660913, now seen corresponding path program 1 times [2021-12-14 17:09:49,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:09:49,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417370060] [2021-12-14 17:09:49,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:09:49,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:09:49,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:50,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:09:50,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:50,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:09:50,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:50,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-14 17:09:50,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:50,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 17:09:50,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:50,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-14 17:09:50,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:50,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:09:50,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:50,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 17:09:50,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:50,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-14 17:09:50,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:50,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 17:09:50,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:50,170 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-14 17:09:50,171 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:09:50,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417370060] [2021-12-14 17:09:50,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417370060] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:09:50,171 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:09:50,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-14 17:09:50,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286805448] [2021-12-14 17:09:50,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:09:50,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 17:09:50,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:09:50,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 17:09:50,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-14 17:09:50,173 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) [2021-12-14 17:09:50,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:09:50,438 INFO L93 Difference]: Finished difference Result 138 states and 169 transitions. [2021-12-14 17:09:50,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 17:09:50,438 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 [2021-12-14 17:09:50,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:09:50,439 INFO L225 Difference]: With dead ends: 138 [2021-12-14 17:09:50,440 INFO L226 Difference]: Without dead ends: 101 [2021-12-14 17:09:50,440 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 [2021-12-14 17:09:50,441 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 [2021-12-14 17:09:50,441 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] [2021-12-14 17:09:50,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-12-14 17:09:50,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2021-12-14 17:09:50,448 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) [2021-12-14 17:09:50,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 126 transitions. [2021-12-14 17:09:50,449 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 126 transitions. Word has length 64 [2021-12-14 17:09:50,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:09:50,449 INFO L470 AbstractCegarLoop]: Abstraction has 101 states and 126 transitions. [2021-12-14 17:09:50,449 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) [2021-12-14 17:09:50,449 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 126 transitions. [2021-12-14 17:09:50,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-14 17:09:50,450 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:09:50,451 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] [2021-12-14 17:09:50,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 17:09:50,451 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:09:50,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:09:50,451 INFO L85 PathProgramCache]: Analyzing trace with hash -63104247, now seen corresponding path program 1 times [2021-12-14 17:09:50,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:09:50,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962650051] [2021-12-14 17:09:50,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:09:50,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:09:50,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:50,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:09:50,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:50,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:09:50,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:50,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-14 17:09:50,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:50,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 17:09:50,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:50,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-14 17:09:50,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:50,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:09:50,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:50,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 17:09:50,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:50,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-14 17:09:50,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:50,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 17:09:50,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:50,585 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-14 17:09:50,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:09:50,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962650051] [2021-12-14 17:09:50,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962650051] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:09:50,586 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:09:50,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 17:09:50,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606420761] [2021-12-14 17:09:50,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:09:50,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 17:09:50,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:09:50,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 17:09:50,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:09:50,587 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) [2021-12-14 17:09:50,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:09:50,738 INFO L93 Difference]: Finished difference Result 159 states and 199 transitions. [2021-12-14 17:09:50,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 17:09:50,738 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 [2021-12-14 17:09:50,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:09:50,739 INFO L225 Difference]: With dead ends: 159 [2021-12-14 17:09:50,739 INFO L226 Difference]: Without dead ends: 101 [2021-12-14 17:09:50,740 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 [2021-12-14 17:09:50,741 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 41 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 17:09:50,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 334 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 17:09:50,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-12-14 17:09:50,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2021-12-14 17:09:50,747 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) [2021-12-14 17:09:50,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 125 transitions. [2021-12-14 17:09:50,748 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 125 transitions. Word has length 65 [2021-12-14 17:09:50,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:09:50,748 INFO L470 AbstractCegarLoop]: Abstraction has 101 states and 125 transitions. [2021-12-14 17:09:50,749 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) [2021-12-14 17:09:50,749 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 125 transitions. [2021-12-14 17:09:50,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-14 17:09:50,750 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:09:50,750 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] [2021-12-14 17:09:50,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-14 17:09:50,750 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:09:50,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:09:50,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1726009102, now seen corresponding path program 1 times [2021-12-14 17:09:50,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:09:50,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089568446] [2021-12-14 17:09:50,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:09:50,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:09:50,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:50,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:09:50,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:50,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-14 17:09:50,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:51,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:09:51,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:51,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:09:51,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:51,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 17:09:51,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:51,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:09:51,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:51,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-14 17:09:51,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:51,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-14 17:09:51,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:51,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 17:09:51,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:51,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 17:09:51,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:51,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-14 17:09:51,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:51,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:09:51,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:51,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-14 17:09:51,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:51,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-14 17:09:51,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:51,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-14 17:09:51,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:51,229 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-12-14 17:09:51,230 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:09:51,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089568446] [2021-12-14 17:09:51,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089568446] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 17:09:51,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124847276] [2021-12-14 17:09:51,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:09:51,231 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 17:09:51,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 17:09:51,232 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) [2021-12-14 17:09:51,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-14 17:09:51,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:09:51,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 911 conjuncts, 21 conjunts are in the unsatisfiable core [2021-12-14 17:09:51,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 17:09:51,642 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-12-14 17:09:51,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 17:09:51,880 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-12-14 17:09:51,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [124847276] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 17:09:51,881 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 17:09:51,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 11, 11] total 27 [2021-12-14 17:09:51,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482870243] [2021-12-14 17:09:51,881 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 17:09:51,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-12-14 17:09:51,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:09:51,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-12-14 17:09:51,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=642, Unknown=0, NotChecked=0, Total=702 [2021-12-14 17:09:51,883 INFO L87 Difference]: Start difference. First operand 101 states and 125 transitions. Second operand has 27 states, 25 states have (on average 3.12) internal successors, (78), 20 states have internal predecessors, (78), 10 states have call successors, (26), 4 states have call predecessors, (26), 7 states have return successors, (25), 13 states have call predecessors, (25), 10 states have call successors, (25) [2021-12-14 17:09:52,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:09:52,286 INFO L93 Difference]: Finished difference Result 116 states and 137 transitions. [2021-12-14 17:09:52,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-14 17:09:52,286 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 3.12) internal successors, (78), 20 states have internal predecessors, (78), 10 states have call successors, (26), 4 states have call predecessors, (26), 7 states have return successors, (25), 13 states have call predecessors, (25), 10 states have call successors, (25) Word has length 99 [2021-12-14 17:09:52,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:09:52,287 INFO L225 Difference]: With dead ends: 116 [2021-12-14 17:09:52,287 INFO L226 Difference]: Without dead ends: 0 [2021-12-14 17:09:52,288 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=146, Invalid=1336, Unknown=0, NotChecked=0, Total=1482 [2021-12-14 17:09:52,288 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 58 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-14 17:09:52,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 428 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-14 17:09:52,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-14 17:09:52,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-14 17:09:52,289 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) [2021-12-14 17:09:52,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-14 17:09:52,289 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 99 [2021-12-14 17:09:52,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:09:52,289 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-14 17:09:52,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 3.12) internal successors, (78), 20 states have internal predecessors, (78), 10 states have call successors, (26), 4 states have call predecessors, (26), 7 states have return successors, (25), 13 states have call predecessors, (25), 10 states have call successors, (25) [2021-12-14 17:09:52,289 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-14 17:09:52,289 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-14 17:09:52,291 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-14 17:09:52,332 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-14 17:09:52,509 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 [2021-12-14 17:09:52,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-14 17:09:52,759 INFO L854 garLoopResultBuilder]: At program point L6816(lines 6807 6817) the Hoare annotation is: (and (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= 16 |ensure_string_is_allocated_bounded_length_~max_size#1|)) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_#res#1.base| 0)) (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 16))) [2021-12-14 17:09:52,759 INFO L858 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthEXIT(lines 6801 6805) no Hoare annotation was computed. [2021-12-14 17:09:52,759 INFO L858 garLoopResultBuilder]: For program point L6811-1(lines 6811 6812) no Hoare annotation was computed. [2021-12-14 17:09:52,759 INFO L854 garLoopResultBuilder]: At program point L6811(line 6811) the Hoare annotation is: (and (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= 16 |ensure_string_is_allocated_bounded_length_~max_size#1|)) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 16))) [2021-12-14 17:09:52,759 INFO L858 garLoopResultBuilder]: For program point L6811-5(lines 6811 6812) no Hoare annotation was computed. [2021-12-14 17:09:52,759 INFO L858 garLoopResultBuilder]: For program point L6808-1(line 6808) no Hoare annotation was computed. [2021-12-14 17:09:52,759 INFO L854 garLoopResultBuilder]: At program point L6808(line 6808) the Hoare annotation is: (let ((.cse0 (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 16)))) (and (= |old(#length)| |#length|) (or (<= |ensure_string_is_allocated_bounded_length_~len~1#1| (+ (* 18446744073709551616 (div |ensure_string_is_allocated_bounded_length_~len~1#1| 18446744073709551616)) 15)) .cse0) (= |old(#memory_real)| |#memory_real|) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= 16 |ensure_string_is_allocated_bounded_length_~max_size#1|)) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (or (<= (* 18446744073709551616 (div (+ 18446744073709551600 |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1|) 18446744073709551616)) |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1|) .cse0) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|))) [2021-12-14 17:09:52,759 INFO L858 garLoopResultBuilder]: For program point L6811-3(line 6811) no Hoare annotation was computed. [2021-12-14 17:09:52,760 INFO L854 garLoopResultBuilder]: At program point L6811-2(line 6811) the Hoare annotation is: (and (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= 16 |ensure_string_is_allocated_bounded_length_~max_size#1|)) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 16))) [2021-12-14 17:09:52,760 INFO L854 garLoopResultBuilder]: At program point L6802(line 6802) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= 16 |ensure_string_is_allocated_bounded_length_~max_size#1|)) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|)) [2021-12-14 17:09:52,760 INFO L858 garLoopResultBuilder]: For program point L6803-1(line 6803) no Hoare annotation was computed. [2021-12-14 17:09:52,760 INFO L854 garLoopResultBuilder]: At program point L6803(line 6803) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= 16 |ensure_string_is_allocated_bounded_length_~max_size#1|)) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|)) [2021-12-14 17:09:52,760 INFO L854 garLoopResultBuilder]: At program point ensure_string_is_allocated_bounded_lengthENTRY(lines 6801 6805) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|)) [2021-12-14 17:09:52,760 INFO L858 garLoopResultBuilder]: For program point L6802-1(line 6802) no Hoare annotation was computed. [2021-12-14 17:09:52,760 INFO L858 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthFINAL(lines 6801 6805) no Hoare annotation was computed. [2021-12-14 17:09:52,760 INFO L854 garLoopResultBuilder]: At program point bounded_mallocENTRY(lines 6883 6888) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-12-14 17:09:52,760 INFO L858 garLoopResultBuilder]: For program point bounded_mallocFINAL(lines 6883 6888) no Hoare annotation was computed. [2021-12-14 17:09:52,760 INFO L858 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6883 6888) no Hoare annotation was computed. [2021-12-14 17:09:52,760 INFO L858 garLoopResultBuilder]: For program point L6884-1(lines 6884 6886) no Hoare annotation was computed. [2021-12-14 17:09:52,760 INFO L854 garLoopResultBuilder]: At program point L6884(lines 6884 6886) the Hoare annotation is: (and (= |bounded_malloc_#in~size| bounded_malloc_~size) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-12-14 17:09:52,760 INFO L858 garLoopResultBuilder]: For program point nondet_boolFINAL(line 261) no Hoare annotation was computed. [2021-12-14 17:09:52,760 INFO L858 garLoopResultBuilder]: For program point nondet_boolEXIT(line 261) no Hoare annotation was computed. [2021-12-14 17:09:52,760 INFO L861 garLoopResultBuilder]: At program point nondet_boolENTRY(line 261) the Hoare annotation is: true [2021-12-14 17:09:52,761 INFO L858 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2021-12-14 17:09:52,761 INFO L861 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 210 212) the Hoare annotation is: true [2021-12-14 17:09:52,761 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-12-14 17:09:52,761 INFO L858 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2021-12-14 17:09:52,761 INFO L858 garLoopResultBuilder]: For program point L8097(lines 8097 8101) no Hoare annotation was computed. [2021-12-14 17:09:52,761 INFO L858 garLoopResultBuilder]: For program point L8095-4(lines 8095 8108) no Hoare annotation was computed. [2021-12-14 17:09:52,761 INFO L861 garLoopResultBuilder]: At program point L8095-3(lines 8095 8108) the Hoare annotation is: true [2021-12-14 17:09:52,761 INFO L858 garLoopResultBuilder]: For program point L8095-2(lines 8095 8108) no Hoare annotation was computed. [2021-12-14 17:09:52,761 INFO L858 garLoopResultBuilder]: For program point aws_array_eq_c_strFINAL(lines 8078 8111) no Hoare annotation was computed. [2021-12-14 17:09:52,761 INFO L858 garLoopResultBuilder]: For program point L8083(lines 8083 8085) no Hoare annotation was computed. [2021-12-14 17:09:52,761 INFO L861 garLoopResultBuilder]: At program point L8080-1(line 8080) the Hoare annotation is: true [2021-12-14 17:09:52,761 INFO L861 garLoopResultBuilder]: At program point L8080(line 8080) the Hoare annotation is: true [2021-12-14 17:09:52,761 INFO L861 garLoopResultBuilder]: At program point aws_array_eq_c_strENTRY(lines 8078 8111) the Hoare annotation is: true [2021-12-14 17:09:52,761 INFO L858 garLoopResultBuilder]: For program point L8103(lines 8103 8107) no Hoare annotation was computed. [2021-12-14 17:09:52,761 INFO L858 garLoopResultBuilder]: For program point aws_array_eq_c_strEXIT(lines 8078 8111) no Hoare annotation was computed. [2021-12-14 17:09:52,761 INFO L858 garLoopResultBuilder]: For program point can_fail_allocatorFINAL(lines 6890 6892) no Hoare annotation was computed. [2021-12-14 17:09:52,761 INFO L858 garLoopResultBuilder]: For program point can_fail_allocatorEXIT(lines 6890 6892) no Hoare annotation was computed. [2021-12-14 17:09:52,761 INFO L861 garLoopResultBuilder]: At program point can_fail_allocatorENTRY(lines 6890 6892) the Hoare annotation is: true [2021-12-14 17:09:52,761 INFO L861 garLoopResultBuilder]: At program point aws_string_is_validENTRY(lines 6253 6258) the Hoare annotation is: true [2021-12-14 17:09:52,762 INFO L858 garLoopResultBuilder]: For program point L6257-2(line 6257) no Hoare annotation was computed. [2021-12-14 17:09:52,762 INFO L858 garLoopResultBuilder]: For program point L6257-3(line 6257) no Hoare annotation was computed. [2021-12-14 17:09:52,762 INFO L858 garLoopResultBuilder]: For program point L6257(line 6257) no Hoare annotation was computed. [2021-12-14 17:09:52,762 INFO L858 garLoopResultBuilder]: For program point aws_string_is_validFINAL(lines 6253 6258) no Hoare annotation was computed. [2021-12-14 17:09:52,762 INFO L858 garLoopResultBuilder]: For program point L6257-5(line 6257) no Hoare annotation was computed. [2021-12-14 17:09:52,762 INFO L858 garLoopResultBuilder]: For program point aws_string_is_validEXIT(lines 6253 6258) no Hoare annotation was computed. [2021-12-14 17:09:52,762 INFO L858 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2021-12-14 17:09:52,762 INFO L861 garLoopResultBuilder]: At program point nondet_uint64_tENTRY(line 266) the Hoare annotation is: true [2021-12-14 17:09:52,762 INFO L858 garLoopResultBuilder]: For program point nondet_uint64_tFINAL(line 266) no Hoare annotation was computed. [2021-12-14 17:09:52,762 INFO L861 garLoopResultBuilder]: At program point L8925(line 8925) the Hoare annotation is: true [2021-12-14 17:09:52,762 INFO L858 garLoopResultBuilder]: For program point L7579(line 7579) no Hoare annotation was computed. [2021-12-14 17:09:52,762 INFO L858 garLoopResultBuilder]: For program point L7100(lines 7100 7113) no Hoare annotation was computed. [2021-12-14 17:09:52,762 INFO L858 garLoopResultBuilder]: For program point L7579-5(line 7579) no Hoare annotation was computed. [2021-12-14 17:09:52,762 INFO L854 garLoopResultBuilder]: At program point L7579-4(line 7579) the Hoare annotation is: (or (and (not (= |ULTIMATE.start_aws_string_eq_c_str_~c_str#1.base| 0)) (= |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.offset| 0) (not (= |ULTIMATE.start_ensure_c_str_is_allocated_~str~1#1.base| 0)) (= |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.base| 0) (not (= |ULTIMATE.start_ensure_c_str_is_allocated_#res#1.base| 0))) (and (= |ULTIMATE.start_aws_string_eq_c_str_harness_~c_str~0#1.base| 0) (= |ULTIMATE.start_aws_string_eq_c_str_harness_~c_str~0#1.offset| 0))) [2021-12-14 17:09:52,762 INFO L858 garLoopResultBuilder]: For program point L7579-3(line 7579) no Hoare annotation was computed. [2021-12-14 17:09:52,762 INFO L854 garLoopResultBuilder]: At program point L7579-2(line 7579) the Hoare annotation is: (or (and (not (= |ULTIMATE.start_aws_string_eq_c_str_~c_str#1.base| 0)) (= |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.offset| 0) (not (= |ULTIMATE.start_ensure_c_str_is_allocated_~str~1#1.base| 0)) (= |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.base| 0) (not (= |ULTIMATE.start_ensure_c_str_is_allocated_#res#1.base| 0))) (and (= |ULTIMATE.start_aws_string_eq_c_str_harness_~c_str~0#1.base| 0) (= |ULTIMATE.start_aws_string_eq_c_str_harness_~c_str~0#1.offset| 0))) [2021-12-14 17:09:52,762 INFO L854 garLoopResultBuilder]: At program point L8921(line 8921) the Hoare annotation is: false [2021-12-14 17:09:52,762 INFO L858 garLoopResultBuilder]: For program point L8921-1(line 8921) no Hoare annotation was computed. [2021-12-14 17:09:52,763 INFO L858 garLoopResultBuilder]: For program point L6820-1(line 6820) no Hoare annotation was computed. [2021-12-14 17:09:52,763 INFO L854 garLoopResultBuilder]: At program point L6820(line 6820) the Hoare annotation is: (and (= |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| 0)) [2021-12-14 17:09:52,763 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-14 17:09:52,763 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-14 17:09:52,763 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-14 17:09:52,763 INFO L858 garLoopResultBuilder]: For program point L7580(lines 7580 7588) no Hoare annotation was computed. [2021-12-14 17:09:52,763 INFO L858 garLoopResultBuilder]: For program point L7101-1(lines 7100 7113) no Hoare annotation was computed. [2021-12-14 17:09:52,763 INFO L854 garLoopResultBuilder]: At program point L7101(line 7101) the Hoare annotation is: false [2021-12-14 17:09:52,763 INFO L858 garLoopResultBuilder]: For program point L8918(lines 8918 8923) no Hoare annotation was computed. [2021-12-14 17:09:52,763 INFO L854 garLoopResultBuilder]: At program point L6821-1(line 6821) the Hoare annotation is: (and (= |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| 0)) [2021-12-14 17:09:52,763 INFO L854 garLoopResultBuilder]: At program point L6821(line 6821) the Hoare annotation is: (and (= |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| 0)) [2021-12-14 17:09:52,763 INFO L858 garLoopResultBuilder]: For program point L7589(lines 7589 7597) no Hoare annotation was computed. [2021-12-14 17:09:52,763 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-14 17:09:52,763 INFO L854 garLoopResultBuilder]: At program point L6272(lines 6263 6273) the Hoare annotation is: false [2021-12-14 17:09:52,763 INFO L858 garLoopResultBuilder]: For program point L8919-2(line 8919) no Hoare annotation was computed. [2021-12-14 17:09:52,763 INFO L854 garLoopResultBuilder]: At program point L8915(line 8915) the Hoare annotation is: (and (= |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| 0)) [2021-12-14 17:09:52,763 INFO L858 garLoopResultBuilder]: For program point L8915-1(lines 8915 8916) no Hoare annotation was computed. [2021-12-14 17:09:52,763 INFO L854 garLoopResultBuilder]: At program point L8919(line 8919) the Hoare annotation is: false [2021-12-14 17:09:52,764 INFO L854 garLoopResultBuilder]: At program point L8919-1(line 8919) the Hoare annotation is: false [2021-12-14 17:09:52,764 INFO L854 garLoopResultBuilder]: At program point L7598(line 7598) the Hoare annotation is: (or (and (not (= |ULTIMATE.start_aws_string_eq_c_str_~c_str#1.base| 0)) (= |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.offset| 0) (not (= |ULTIMATE.start_ensure_c_str_is_allocated_~str~1#1.base| 0)) (= |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.base| 0) (not (= |ULTIMATE.start_ensure_c_str_is_allocated_#res#1.base| 0))) (and (= |ULTIMATE.start_aws_string_eq_c_str_harness_~c_str~0#1.base| 0) (= |ULTIMATE.start_aws_string_eq_c_str_harness_~c_str~0#1.offset| 0))) [2021-12-14 17:09:52,764 INFO L854 garLoopResultBuilder]: At program point L6826(line 6826) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.offset| 0) (not (= |ULTIMATE.start_ensure_c_str_is_allocated_~str~1#1.base| 0)) (= |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.base| 0)) [2021-12-14 17:09:52,764 INFO L858 garLoopResultBuilder]: For program point L8915-3(lines 8915 8916) no Hoare annotation was computed. [2021-12-14 17:09:52,764 INFO L854 garLoopResultBuilder]: At program point L7598-2(lines 7577 7599) the Hoare annotation is: (or (and (not (= |ULTIMATE.start_aws_string_eq_c_str_~c_str#1.base| 0)) (= |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.offset| 0) (not (= |ULTIMATE.start_ensure_c_str_is_allocated_~str~1#1.base| 0)) (= |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.base| 0) (not (= |ULTIMATE.start_ensure_c_str_is_allocated_#res#1.base| 0))) (and (= |ULTIMATE.start_aws_string_eq_c_str_harness_~c_str~0#1.base| 0) (= |ULTIMATE.start_aws_string_eq_c_str_harness_~c_str~0#1.offset| 0))) [2021-12-14 17:09:52,764 INFO L858 garLoopResultBuilder]: For program point L8911(lines 8911 8924) no Hoare annotation was computed. [2021-12-14 17:09:52,764 INFO L858 garLoopResultBuilder]: For program point L7598-1(line 7598) no Hoare annotation was computed. [2021-12-14 17:09:52,764 INFO L858 garLoopResultBuilder]: For program point L6822(line 6822) no Hoare annotation was computed. [2021-12-14 17:09:52,764 INFO L858 garLoopResultBuilder]: For program point L7111-1(line 7111) no Hoare annotation was computed. [2021-12-14 17:09:52,764 INFO L854 garLoopResultBuilder]: At program point L7111(line 7111) the Hoare annotation is: false [2021-12-14 17:09:52,764 INFO L858 garLoopResultBuilder]: For program point L6826-1(line 6826) no Hoare annotation was computed. [2021-12-14 17:09:52,764 INFO L858 garLoopResultBuilder]: For program point L7107-1(line 7107) no Hoare annotation was computed. [2021-12-14 17:09:52,764 INFO L854 garLoopResultBuilder]: At program point L7107(line 7107) the Hoare annotation is: false [2021-12-14 17:09:52,764 INFO L854 garLoopResultBuilder]: At program point L8920(line 8920) the Hoare annotation is: false [2021-12-14 17:09:52,764 INFO L858 garLoopResultBuilder]: For program point L8920-1(line 8920) no Hoare annotation was computed. [2021-12-14 17:09:52,764 INFO L858 garLoopResultBuilder]: For program point L8912-3(line 8912) no Hoare annotation was computed. [2021-12-14 17:09:52,764 INFO L858 garLoopResultBuilder]: For program point L8912-5(lines 8912 8913) no Hoare annotation was computed. [2021-12-14 17:09:52,764 INFO L861 garLoopResultBuilder]: At program point L8912(line 8912) the Hoare annotation is: true [2021-12-14 17:09:52,764 INFO L854 garLoopResultBuilder]: At program point L6827(lines 6819 6828) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.offset| 0) (not (= |ULTIMATE.start_ensure_c_str_is_allocated_~str~1#1.base| 0)) (= |ULTIMATE.start_aws_string_eq_c_str_harness_~str~3#1.base| 0) (not (= |ULTIMATE.start_ensure_c_str_is_allocated_#res#1.base| 0))) [2021-12-14 17:09:52,765 INFO L858 garLoopResultBuilder]: For program point L8912-1(lines 8912 8913) no Hoare annotation was computed. [2021-12-14 17:09:52,765 INFO L861 garLoopResultBuilder]: At program point L8912-2(line 8912) the Hoare annotation is: true [2021-12-14 17:09:52,765 INFO L858 garLoopResultBuilder]: For program point L7108-1(lines 7108 7110) no Hoare annotation was computed. [2021-12-14 17:09:52,765 INFO L854 garLoopResultBuilder]: At program point L7108(lines 7108 7110) the Hoare annotation is: false [2021-12-14 17:09:52,765 INFO L858 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-12-14 17:09:52,765 INFO L861 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 222 224) the Hoare annotation is: true [2021-12-14 17:09:52,765 INFO L858 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-12-14 17:09:52,765 INFO L858 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2021-12-14 17:09:52,765 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2021-12-14 17:09:52,765 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-12-14 17:09:52,769 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-12-14 17:09:52,770 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-14 17:09:52,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 05:09:52 BoogieIcfgContainer [2021-12-14 17:09:52,817 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-14 17:09:52,817 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-14 17:09:52,818 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-14 17:09:52,818 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-14 17:09:52,818 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:09:49" (3/4) ... [2021-12-14 17:09:52,820 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-14 17:09:52,825 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ensure_string_is_allocated_bounded_length [2021-12-14 17:09:52,826 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2021-12-14 17:09:52,826 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2021-12-14 17:09:52,826 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2021-12-14 17:09:52,826 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2021-12-14 17:09:52,826 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-12-14 17:09:52,826 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_eq_c_str [2021-12-14 17:09:52,827 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2021-12-14 17:09:52,827 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_is_valid [2021-12-14 17:09:52,840 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2021-12-14 17:09:52,841 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-12-14 17:09:52,842 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-14 17:09:52,843 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-14 17:09:52,860 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((str == 0 && !(str == 0)) && str == 0) && !(\result == 0) [2021-12-14 17:09:52,861 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(c_str == 0) && str == 0) && !(str == 0)) && str == 0) && !(\result == 0)) || (c_str == 0 && c_str == 0) [2021-12-14 17:09:52,861 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\old(max_size) == max_size || 16 == max_size) && !(str == 0)) && !(\result == 0)) && !(\old(max_size) == 16) [2021-12-14 17:09:52,995 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-14 17:09:52,995 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-14 17:09:52,996 INFO L158 Benchmark]: Toolchain (without parser) took 6154.49ms. Allocated memory was 100.7MB in the beginning and 293.6MB in the end (delta: 192.9MB). Free memory was 73.4MB in the beginning and 166.7MB in the end (delta: -93.3MB). Peak memory consumption was 98.0MB. Max. memory is 16.1GB. [2021-12-14 17:09:52,996 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 100.7MB. Free memory is still 57.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 17:09:52,996 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1631.75ms. Allocated memory was 100.7MB in the beginning and 148.9MB in the end (delta: 48.2MB). Free memory was 73.1MB in the beginning and 60.5MB in the end (delta: 12.6MB). Peak memory consumption was 68.7MB. Max. memory is 16.1GB. [2021-12-14 17:09:52,997 INFO L158 Benchmark]: Boogie Procedure Inliner took 160.53ms. Allocated memory is still 148.9MB. Free memory was 60.5MB in the beginning and 96.2MB in the end (delta: -35.6MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. [2021-12-14 17:09:52,997 INFO L158 Benchmark]: Boogie Preprocessor took 79.30ms. Allocated memory is still 148.9MB. Free memory was 96.2MB in the beginning and 91.1MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-14 17:09:52,997 INFO L158 Benchmark]: RCFGBuilder took 560.05ms. Allocated memory is still 148.9MB. Free memory was 91.1MB in the beginning and 58.4MB in the end (delta: 32.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2021-12-14 17:09:52,998 INFO L158 Benchmark]: TraceAbstraction took 3540.79ms. Allocated memory was 148.9MB in the beginning and 293.6MB in the end (delta: 144.7MB). Free memory was 58.4MB in the beginning and 240.7MB in the end (delta: -182.3MB). Peak memory consumption was 92.3MB. Max. memory is 16.1GB. [2021-12-14 17:09:52,998 INFO L158 Benchmark]: Witness Printer took 178.18ms. Allocated memory is still 293.6MB. Free memory was 240.6MB in the beginning and 166.7MB in the end (delta: 73.9MB). Peak memory consumption was 71.3MB. Max. memory is 16.1GB. [2021-12-14 17:09:52,999 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 100.7MB. Free memory is still 57.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1631.75ms. Allocated memory was 100.7MB in the beginning and 148.9MB in the end (delta: 48.2MB). Free memory was 73.1MB in the beginning and 60.5MB in the end (delta: 12.6MB). Peak memory consumption was 68.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 160.53ms. Allocated memory is still 148.9MB. Free memory was 60.5MB in the beginning and 96.2MB in the end (delta: -35.6MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.30ms. Allocated memory is still 148.9MB. Free memory was 96.2MB in the beginning and 91.1MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 560.05ms. Allocated memory is still 148.9MB. Free memory was 91.1MB in the beginning and 58.4MB in the end (delta: 32.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3540.79ms. Allocated memory was 148.9MB in the beginning and 293.6MB in the end (delta: 144.7MB). Free memory was 58.4MB in the beginning and 240.7MB in the end (delta: -182.3MB). Peak memory consumption was 92.3MB. Max. memory is 16.1GB. * Witness Printer took 178.18ms. Allocated memory is still 293.6MB. Free memory was 240.6MB in the beginning and 166.7MB in the end (delta: 73.9MB). 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: 3.5s, OverallIterations: 5, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 208 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 194 mSDsluCounter, 1823 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1288 mSDsCounter, 128 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 837 IncrementalHoareTripleChecker+Invalid, 965 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 128 mSolverCounterUnsat, 535 mSDtfsCounter, 837 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 330 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred in iteration=0, InterpolantAutomatonStates: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 41 LocationsWithAnnotation, 129 PreInvPairs, 152 NumberOfFragments, 378 HoareAnnotationTreeSize, 129 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 41 FomulaSimplificationsInter, 126 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 399 NumberOfCodeBlocks, 399 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 491 ConstructedInterpolants, 0 QuantifiedInterpolants, 1097 SizeOfPredicates, 7 NumberOfNonLiveVariables, 911 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 259/291 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: ((((!(c_str == 0) && str == 0) && !(str == 0)) && str == 0) && !(\result == 0)) || (c_str == 0 && c_str == 0) - InvariantResult [Line: 6807]: Loop Invariant Derived loop invariant: (((\old(max_size) == max_size || 16 == max_size) && !(str == 0)) && !(\result == 0)) && !(\old(max_size) == 16) - InvariantResult [Line: 6819]: Loop Invariant Derived loop invariant: ((str == 0 && !(str == 0)) && str == 0) && !(\result == 0) RESULT: Ultimate proved your program to be correct! [2021-12-14 17:09:53,038 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE