./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version bfd0d9ac 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_bytes_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 be41ee8ace02416f2e9952c11df8cb43e10a04c126211792ad12271f5624b8e0 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-bfd0d9a [2021-11-01 11:02:46,689 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-01 11:02:46,691 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-01 11:02:46,741 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-01 11:02:46,742 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-01 11:02:46,745 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-01 11:02:46,747 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-01 11:02:46,751 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-01 11:02:46,754 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-01 11:02:46,756 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-01 11:02:46,757 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-01 11:02:46,759 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-01 11:02:46,759 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-01 11:02:46,764 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-01 11:02:46,766 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-01 11:02:46,767 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-01 11:02:46,772 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-01 11:02:46,773 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-01 11:02:46,774 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-01 11:02:46,777 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-01 11:02:46,780 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-01 11:02:46,781 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-01 11:02:46,782 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-01 11:02:46,783 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-01 11:02:46,787 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-01 11:02:46,787 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-01 11:02:46,788 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-01 11:02:46,790 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-01 11:02:46,791 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-01 11:02:46,791 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-01 11:02:46,792 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-01 11:02:46,792 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-01 11:02:46,794 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-01 11:02:46,794 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-01 11:02:46,795 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-01 11:02:46,796 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-01 11:02:46,796 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-01 11:02:46,796 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-01 11:02:46,796 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-01 11:02:46,797 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-01 11:02:46,797 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-01 11:02:46,798 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-01 11:02:46,832 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-01 11:02:46,832 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-01 11:02:46,833 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-01 11:02:46,833 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-01 11:02:46,834 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-01 11:02:46,835 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-01 11:02:46,835 INFO L138 SettingsManager]: * Use SBE=true [2021-11-01 11:02:46,835 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-01 11:02:46,835 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-01 11:02:46,835 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-01 11:02:46,836 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-01 11:02:46,836 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-01 11:02:46,836 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-01 11:02:46,837 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-01 11:02:46,837 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-01 11:02:46,837 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-01 11:02:46,837 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-01 11:02:46,837 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-01 11:02:46,837 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-01 11:02:46,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-01 11:02:46,838 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-01 11:02:46,838 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-01 11:02:46,838 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-01 11:02:46,838 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-01 11:02:46,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-01 11:02:46,838 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-01 11:02:46,839 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-01 11:02:46,839 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-01 11:02:46,839 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-01 11:02:46,839 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be41ee8ace02416f2e9952c11df8cb43e10a04c126211792ad12271f5624b8e0 [2021-11-01 11:02:47,087 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-01 11:02:47,110 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-01 11:02:47,113 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-01 11:02:47,114 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-01 11:02:47,115 INFO L275 PluginConnector]: CDTParser initialized [2021-11-01 11:02:47,116 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i [2021-11-01 11:02:47,175 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76feda868/5ab0783713fe4ebba268b79dc43e2ec7/FLAG550989dd6 [2021-11-01 11:02:47,750 INFO L306 CDTParser]: Found 1 translation units. [2021-11-01 11:02:47,750 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i [2021-11-01 11:02:47,779 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76feda868/5ab0783713fe4ebba268b79dc43e2ec7/FLAG550989dd6 [2021-11-01 11:02:47,995 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76feda868/5ab0783713fe4ebba268b79dc43e2ec7 [2021-11-01 11:02:47,997 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-01 11:02:47,998 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-01 11:02:48,000 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-01 11:02:48,000 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-01 11:02:48,002 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-01 11:02:48,003 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 11:02:47" (1/1) ... [2021-11-01 11:02:48,003 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3538eed3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 11:02:48, skipping insertion in model container [2021-11-01 11:02:48,004 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 11:02:47" (1/1) ... [2021-11-01 11:02:48,011 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-01 11:02:48,063 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-01 11:02:48,262 WARN L228 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_bytes_harness.i[4490,4503] [2021-11-01 11:02:48,267 WARN L228 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_bytes_harness.i[4550,4563] [2021-11-01 11:02:48,279 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-01 11:02:48,284 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-01 11:02:48,695 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 11:02:48,697 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 11:02:48,698 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 11:02:48,699 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 11:02:48,699 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 11:02:48,707 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 11:02:48,708 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 11:02:48,709 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 11:02:48,709 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 11:02:48,710 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 11:02:48,711 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 11:02:48,711 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 11:02:48,712 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 11:02:48,903 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-01 11:02:48,904 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-01 11:02:48,904 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-01 11:02:48,905 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-01 11:02:48,906 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-01 11:02:48,906 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-01 11:02:48,907 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-01 11:02:48,907 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-01 11:02:48,908 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-01 11:02:48,908 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-01 11:02:49,002 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-01 11:02:49,028 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-01 11:02:49,042 INFO L203 MainTranslator]: Completed pre-run [2021-11-01 11:02:49,060 WARN L228 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_bytes_harness.i[4490,4503] [2021-11-01 11:02:49,060 WARN L228 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_bytes_harness.i[4550,4563] [2021-11-01 11:02:49,062 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-01 11:02:49,064 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-01 11:02:49,097 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 11:02:49,098 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 11:02:49,098 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 11:02:49,099 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 11:02:49,099 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 11:02:49,109 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 11:02:49,109 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 11:02:49,116 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 11:02:49,116 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 11:02:49,118 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 11:02:49,118 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 11:02:49,119 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 11:02:49,119 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-01 11:02:49,158 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-01 11:02:49,158 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-01 11:02:49,159 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-01 11:02:49,159 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-01 11:02:49,160 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-01 11:02:49,161 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-01 11:02:49,161 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-01 11:02:49,161 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-01 11:02:49,162 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-01 11:02:49,162 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-01 11:02:49,179 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-01 11:02:49,185 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-01 11:02:49,331 INFO L208 MainTranslator]: Completed translation [2021-11-01 11:02:49,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 11:02:49 WrapperNode [2021-11-01 11:02:49,332 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-01 11:02:49,333 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-01 11:02:49,333 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-01 11:02:49,333 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-01 11:02:49,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 11:02:49" (1/1) ... [2021-11-01 11:02:49,393 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 11:02:49" (1/1) ... [2021-11-01 11:02:49,418 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-01 11:02:49,419 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-01 11:02:49,419 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-01 11:02:49,420 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-01 11:02:49,425 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 11:02:49" (1/1) ... [2021-11-01 11:02:49,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 11:02:49" (1/1) ... [2021-11-01 11:02:49,434 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 11:02:49" (1/1) ... [2021-11-01 11:02:49,434 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 11:02:49" (1/1) ... [2021-11-01 11:02:49,447 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 11:02:49" (1/1) ... [2021-11-01 11:02:49,452 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 11:02:49" (1/1) ... [2021-11-01 11:02:49,454 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 11:02:49" (1/1) ... [2021-11-01 11:02:49,464 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-01 11:02:49,467 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-01 11:02:49,468 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-01 11:02:49,468 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-01 11:02:49,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 11:02:49" (1/1) ... [2021-11-01 11:02:49,474 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-01 11:02:49,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-01 11:02:49,492 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-01 11:02:49,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-01 11:02:49,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-01 11:02:49,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-01 11:02:49,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-01 11:02:49,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-01 11:02:49,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-01 11:02:49,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-01 11:02:49,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-01 11:02:49,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-01 11:02:49,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-01 11:02:49,859 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-01 11:02:49,859 INFO L299 CfgBuilder]: Removed 36 assume(true) statements. [2021-11-01 11:02:49,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 11:02:49 BoogieIcfgContainer [2021-11-01 11:02:49,861 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-01 11:02:49,862 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-01 11:02:49,862 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-01 11:02:49,864 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-01 11:02:49,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.11 11:02:47" (1/3) ... [2021-11-01 11:02:49,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ae8957 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 11:02:49, skipping insertion in model container [2021-11-01 11:02:49,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 11:02:49" (2/3) ... [2021-11-01 11:02:49,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ae8957 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 11:02:49, skipping insertion in model container [2021-11-01 11:02:49,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 11:02:49" (3/3) ... [2021-11-01 11:02:49,868 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_string_bytes_harness.i [2021-11-01 11:02:49,873 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-01 11:02:49,874 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-01 11:02:49,913 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-01 11:02:49,922 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-01 11:02:49,923 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-01 11:02:49,938 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 39 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-01 11:02:49,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-01 11:02:49,943 INFO L506 BasicCegarLoop]: Found error trace [2021-11-01 11:02:49,943 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-01 11:02:49,944 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-01 11:02:49,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-01 11:02:49,948 INFO L85 PathProgramCache]: Analyzing trace with hash 625727524, now seen corresponding path program 1 times [2021-11-01 11:02:49,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-01 11:02:49,955 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984545280] [2021-11-01 11:02:49,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-01 11:02:49,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-01 11:02:50,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-01 11:02:50,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-01 11:02:50,199 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-01 11:02:50,199 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984545280] [2021-11-01 11:02:50,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984545280] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-01 11:02:50,200 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-01 11:02:50,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-01 11:02:50,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102687865] [2021-11-01 11:02:50,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-01 11:02:50,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-01 11:02:50,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-01 11:02:50,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-01 11:02:50,222 INFO L87 Difference]: Start difference. First operand has 40 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 39 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-01 11:02:50,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-01 11:02:50,309 INFO L93 Difference]: Finished difference Result 76 states and 93 transitions. [2021-11-01 11:02:50,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-01 11:02:50,311 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-01 11:02:50,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-01 11:02:50,316 INFO L225 Difference]: With dead ends: 76 [2021-11-01 11:02:50,317 INFO L226 Difference]: Without dead ends: 35 [2021-11-01 11:02:50,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-01 11:02:50,324 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.40ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 72.85ms IncrementalHoareTripleChecker+Time [2021-11-01 11:02:50,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 44 Unknown, 0 Unchecked, 0.40ms Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 72.85ms Time] [2021-11-01 11:02:50,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-11-01 11:02:50,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-11-01 11:02:50,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 33 states have (on average 1.1818181818181819) internal successors, (39), 34 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-01 11:02:50,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2021-11-01 11:02:50,353 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 24 [2021-11-01 11:02:50,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-01 11:02:50,354 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2021-11-01 11:02:50,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-01 11:02:50,354 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2021-11-01 11:02:50,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-01 11:02:50,355 INFO L506 BasicCegarLoop]: Found error trace [2021-11-01 11:02:50,355 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-01 11:02:50,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-01 11:02:50,356 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-01 11:02:50,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-01 11:02:50,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1050276392, now seen corresponding path program 1 times [2021-11-01 11:02:50,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-01 11:02:50,363 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475750492] [2021-11-01 11:02:50,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-01 11:02:50,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-01 11:02:50,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-01 11:02:50,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-01 11:02:50,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-01 11:02:50,528 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475750492] [2021-11-01 11:02:50,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475750492] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-01 11:02:50,529 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-01 11:02:50,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-01 11:02:50,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893669968] [2021-11-01 11:02:50,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-01 11:02:50,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-01 11:02:50,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-01 11:02:50,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-11-01 11:02:50,530 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-01 11:02:50,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-01 11:02:50,760 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2021-11-01 11:02:50,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-01 11:02:50,761 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-01 11:02:50,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-01 11:02:50,762 INFO L225 Difference]: With dead ends: 54 [2021-11-01 11:02:50,762 INFO L226 Difference]: Without dead ends: 35 [2021-11-01 11:02:50,763 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 99.37ms TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2021-11-01 11:02:50,763 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 126 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 115.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.26ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 143.95ms IncrementalHoareTripleChecker+Time [2021-11-01 11:02:50,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 0 Invalid, 198 Unknown, 0 Unchecked, 3.26ms Time], IncrementalHoareTripleChecker [15 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 143.95ms Time] [2021-11-01 11:02:50,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-11-01 11:02:50,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-11-01 11:02:50,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 33 states have (on average 1.121212121212121) internal successors, (37), 34 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-01 11:02:50,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2021-11-01 11:02:50,768 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 24 [2021-11-01 11:02:50,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-01 11:02:50,769 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2021-11-01 11:02:50,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-01 11:02:50,769 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2021-11-01 11:02:50,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-01 11:02:50,770 INFO L506 BasicCegarLoop]: Found error trace [2021-11-01 11:02:50,770 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-01 11:02:50,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-01 11:02:50,770 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-01 11:02:50,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-01 11:02:50,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1859623018, now seen corresponding path program 1 times [2021-11-01 11:02:50,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-01 11:02:50,771 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644320209] [2021-11-01 11:02:50,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-01 11:02:50,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-01 11:02:50,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-01 11:02:50,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-01 11:02:50,958 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-01 11:02:50,958 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644320209] [2021-11-01 11:02:50,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644320209] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-01 11:02:50,959 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-01 11:02:50,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-01 11:02:50,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273452621] [2021-11-01 11:02:50,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-01 11:02:50,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-01 11:02:50,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-01 11:02:50,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-11-01 11:02:50,960 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-01 11:02:51,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-01 11:02:51,186 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2021-11-01 11:02:51,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-01 11:02:51,186 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-01 11:02:51,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-01 11:02:51,187 INFO L225 Difference]: With dead ends: 35 [2021-11-01 11:02:51,187 INFO L226 Difference]: Without dead ends: 33 [2021-11-01 11:02:51,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 158.95ms TimeCoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2021-11-01 11:02:51,188 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 147 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 92.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.61ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 109.65ms IncrementalHoareTripleChecker+Time [2021-11-01 11:02:51,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 0 Invalid, 174 Unknown, 0 Unchecked, 1.61ms Time], IncrementalHoareTripleChecker [9 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 109.65ms Time] [2021-11-01 11:02:51,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-11-01 11:02:51,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-11-01 11:02:51,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.09375) internal successors, (35), 32 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-01 11:02:51,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2021-11-01 11:02:51,192 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 24 [2021-11-01 11:02:51,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-01 11:02:51,192 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2021-11-01 11:02:51,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-01 11:02:51,192 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2021-11-01 11:02:51,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-01 11:02:51,192 INFO L506 BasicCegarLoop]: Found error trace [2021-11-01 11:02:51,192 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-01 11:02:51,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-01 11:02:51,193 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-01 11:02:51,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-01 11:02:51,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1676025637, now seen corresponding path program 1 times [2021-11-01 11:02:51,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-01 11:02:51,193 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280472270] [2021-11-01 11:02:51,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-01 11:02:51,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-01 11:02:51,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-01 11:02:51,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-01 11:02:51,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-01 11:02:51,443 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280472270] [2021-11-01 11:02:51,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280472270] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-01 11:02:51,443 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-01 11:02:51,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-01 11:02:51,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393825824] [2021-11-01 11:02:51,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-01 11:02:51,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-01 11:02:51,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-01 11:02:51,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-01 11:02:51,446 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-01 11:02:51,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-01 11:02:51,487 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2021-11-01 11:02:51,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-01 11:02:51,487 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-01 11:02:51,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-01 11:02:51,488 INFO L225 Difference]: With dead ends: 33 [2021-11-01 11:02:51,488 INFO L226 Difference]: Without dead ends: 0 [2021-11-01 11:02:51,488 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 52.77ms TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-01 11:02:51,490 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 5 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.13ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.17ms IncrementalHoareTripleChecker+Time [2021-11-01 11:02:51,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 0 Invalid, 13 Unknown, 0 Unchecked, 0.13ms Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 9.17ms Time] [2021-11-01 11:02:51,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-01 11:02:51,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-01 11:02:51,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-01 11:02:51,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-01 11:02:51,492 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2021-11-01 11:02:51,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-01 11:02:51,494 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-01 11:02:51,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-01 11:02:51,496 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-01 11:02:51,496 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-01 11:02:51,498 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-11-01 11:02:51,499 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-01 11:02:51,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-01 11:02:51,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-01 11:02:51,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-01 11:02:51,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-01 11:02:51,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-01 11:02:51,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-01 11:02:51,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-01 11:02:51,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-01 11:02:51,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-01 11:02:51,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-01 11:02:51,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-01 11:02:51,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-01 11:02:51,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-01 11:02:51,527 INFO L854 garLoopResultBuilder]: At program point L6295(lines 6292 6296) the Hoare annotation is: false [2021-11-01 11:02:51,528 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-01 11:02:51,528 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-01 11:02:51,528 INFO L858 garLoopResultBuilder]: For program point L222(lines 222 224) no Hoare annotation was computed. [2021-11-01 11:02:51,528 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-01 11:02:51,528 INFO L858 garLoopResultBuilder]: For program point L222-1(lines 222 224) no Hoare annotation was computed. [2021-11-01 11:02:51,528 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-01 11:02:51,530 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-01 11:02:51,530 INFO L858 garLoopResultBuilder]: For program point L210(lines 210 212) no Hoare annotation was computed. [2021-11-01 11:02:51,530 INFO L858 garLoopResultBuilder]: For program point L210-1(lines 210 212) no Hoare annotation was computed. [2021-11-01 11:02:51,530 INFO L858 garLoopResultBuilder]: For program point L210-2(lines 210 212) no Hoare annotation was computed. [2021-11-01 11:02:51,530 INFO L858 garLoopResultBuilder]: For program point L6854(lines 6854 6855) no Hoare annotation was computed. [2021-11-01 11:02:51,530 INFO L858 garLoopResultBuilder]: For program point L6854-2(lines 6854 6855) no Hoare annotation was computed. [2021-11-01 11:02:51,531 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-01 11:02:51,531 INFO L858 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-11-01 11:02:51,531 INFO L858 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-11-01 11:02:51,531 INFO L858 garLoopResultBuilder]: For program point L223-3(line 223) no Hoare annotation was computed. [2021-11-01 11:02:51,531 INFO L858 garLoopResultBuilder]: For program point L7259(lines 7259 7263) no Hoare annotation was computed. [2021-11-01 11:02:51,531 INFO L858 garLoopResultBuilder]: For program point L223-4(line 223) no Hoare annotation was computed. [2021-11-01 11:02:51,531 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-11-01 11:02:51,531 INFO L858 garLoopResultBuilder]: For program point L211-2(line 211) no Hoare annotation was computed. [2021-11-01 11:02:51,531 INFO L858 garLoopResultBuilder]: For program point L211-4(line 211) no Hoare annotation was computed. [2021-11-01 11:02:51,531 INFO L854 garLoopResultBuilder]: At program point L6859(lines 6850 6860) the Hoare annotation is: false [2021-11-01 11:02:51,532 INFO L854 garLoopResultBuilder]: At program point L261(line 261) the Hoare annotation is: false [2021-11-01 11:02:51,532 INFO L858 garLoopResultBuilder]: For program point L6306(line 6306) no Hoare annotation was computed. [2021-11-01 11:02:51,532 INFO L858 garLoopResultBuilder]: For program point L6306-3(line 6306) no Hoare annotation was computed. [2021-11-01 11:02:51,532 INFO L854 garLoopResultBuilder]: At program point L6847(lines 6844 6848) the Hoare annotation is: false [2021-11-01 11:02:51,533 INFO L861 garLoopResultBuilder]: At program point L7264(line 7264) the Hoare annotation is: true [2021-11-01 11:02:51,533 INFO L858 garLoopResultBuilder]: For program point L6306-2(line 6306) no Hoare annotation was computed. [2021-11-01 11:02:51,534 INFO L858 garLoopResultBuilder]: For program point L6306-7(line 6306) no Hoare annotation was computed. [2021-11-01 11:02:51,534 INFO L858 garLoopResultBuilder]: For program point L6306-5(line 6306) no Hoare annotation was computed. [2021-11-01 11:02:51,534 INFO L854 garLoopResultBuilder]: At program point L6306-6(lines 6302 6307) the Hoare annotation is: false [2021-11-01 11:02:51,534 INFO L854 garLoopResultBuilder]: At program point L6934(lines 6933 6935) the Hoare annotation is: false [2021-11-01 11:02:51,534 INFO L854 garLoopResultBuilder]: At program point L6839(lines 6837 6842) the Hoare annotation is: false [2021-11-01 11:02:51,534 INFO L858 garLoopResultBuilder]: For program point L6306-12(line 6306) no Hoare annotation was computed. [2021-11-01 11:02:51,534 INFO L858 garLoopResultBuilder]: For program point L6306-9(line 6306) no Hoare annotation was computed. [2021-11-01 11:02:51,534 INFO L858 garLoopResultBuilder]: For program point L6306-10(line 6306) no Hoare annotation was computed. [2021-11-01 11:02:51,534 INFO L854 garLoopResultBuilder]: At program point L6930(lines 6926 6931) the Hoare annotation is: false [2021-11-01 11:02:51,535 INFO L854 garLoopResultBuilder]: At program point L6306-13(lines 6302 6307) the Hoare annotation is: false [2021-11-01 11:02:51,535 INFO L854 garLoopResultBuilder]: At program point L266(line 266) the Hoare annotation is: (= ULTIMATE.start_ensure_string_is_allocated_bounded_length_~max_size 1234549) [2021-11-01 11:02:51,539 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-01 11:02:51,545 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-01 11:02:51,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.11 11:02:51 BoogieIcfgContainer [2021-11-01 11:02:51,556 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-01 11:02:51,557 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-01 11:02:51,557 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-01 11:02:51,557 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-01 11:02:51,558 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 11:02:49" (3/4) ... [2021-11-01 11:02:51,560 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-01 11:02:51,569 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2021-11-01 11:02:51,569 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-01 11:02:51,570 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-01 11:02:51,570 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-01 11:02:51,607 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-11-01 11:02:51,607 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-01 11:02:51,608 INFO L158 Benchmark]: Toolchain (without parser) took 3609.59ms. Allocated memory was 98.6MB in the beginning and 174.1MB in the end (delta: 75.5MB). Free memory was 63.8MB in the beginning and 117.1MB in the end (delta: -53.3MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. [2021-11-01 11:02:51,608 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 98.6MB. Free memory was 56.7MB in the beginning and 56.7MB in the end (delta: 43.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-01 11:02:51,609 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1332.57ms. Allocated memory was 98.6MB in the beginning and 134.2MB in the end (delta: 35.7MB). Free memory was 63.8MB in the beginning and 82.5MB in the end (delta: -18.8MB). Peak memory consumption was 67.2MB. Max. memory is 16.1GB. [2021-11-01 11:02:51,609 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.76ms. Allocated memory is still 134.2MB. Free memory was 82.5MB in the beginning and 77.0MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-01 11:02:51,609 INFO L158 Benchmark]: Boogie Preprocessor took 47.54ms. Allocated memory is still 134.2MB. Free memory was 77.0MB in the beginning and 74.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-01 11:02:51,609 INFO L158 Benchmark]: RCFGBuilder took 393.23ms. Allocated memory is still 134.2MB. Free memory was 74.9MB in the beginning and 58.8MB in the end (delta: 16.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-01 11:02:51,610 INFO L158 Benchmark]: TraceAbstraction took 1694.52ms. Allocated memory was 134.2MB in the beginning and 174.1MB in the end (delta: 39.8MB). Free memory was 58.1MB in the beginning and 121.3MB in the end (delta: -63.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-01 11:02:51,610 INFO L158 Benchmark]: Witness Printer took 50.54ms. Allocated memory is still 174.1MB. Free memory was 121.3MB in the beginning and 117.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-01 11:02:51,612 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 98.6MB. Free memory was 56.7MB in the beginning and 56.7MB in the end (delta: 43.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1332.57ms. Allocated memory was 98.6MB in the beginning and 134.2MB in the end (delta: 35.7MB). Free memory was 63.8MB in the beginning and 82.5MB in the end (delta: -18.8MB). Peak memory consumption was 67.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.76ms. Allocated memory is still 134.2MB. Free memory was 82.5MB in the beginning and 77.0MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.54ms. Allocated memory is still 134.2MB. Free memory was 77.0MB in the beginning and 74.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 393.23ms. Allocated memory is still 134.2MB. Free memory was 74.9MB in the beginning and 58.8MB in the end (delta: 16.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1694.52ms. Allocated memory was 134.2MB in the beginning and 174.1MB in the end (delta: 39.8MB). Free memory was 58.1MB in the beginning and 121.3MB in the end (delta: -63.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 50.54ms. Allocated memory is still 174.1MB. Free memory was 121.3MB in the beginning and 117.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 40 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1632.43ms, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 14.39ms, AutomataDifference: 635.85ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 28.13ms, InitialAbstractionConstructionTime: 7.21ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 278 SdHoareTripleChecker+Valid, 335.62ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 278 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 274.82ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 199 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 405 IncrementalHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 0 mSDtfsCounter, 405 mSolverCounterSat, 5.41ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 311.13ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 21.03ms AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 12 NumberOfFragments, 13 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 11.09ms HoareSimplificationTime, 11 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 9.85ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 13.16ms SsaConstructionTime, 166.58ms SatisfiabilityAnalysisTime, 529.22ms InterpolantComputationTime, 103 NumberOfCodeBlocks, 103 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 99 ConstructedInterpolants, 0 QuantifiedInterpolants, 283 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: max_size == 1234549 - InvariantResult [Line: 7264]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6933]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6302]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6292]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6850]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6837]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6926]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6844]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6302]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-11-01 11:02:51,650 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...