./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 5b36d44f 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 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 10:14:34,016 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 10:14:34,018 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 10:14:34,076 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 10:14:34,077 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 10:14:34,077 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 10:14:34,078 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 10:14:34,079 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 10:14:34,088 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 10:14:34,092 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 10:14:34,092 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 10:14:34,093 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 10:14:34,094 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 10:14:34,095 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 10:14:34,096 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 10:14:34,098 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 10:14:34,100 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 10:14:34,100 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 10:14:34,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 10:14:34,104 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 10:14:34,107 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 10:14:34,108 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 10:14:34,108 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 10:14:34,109 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 10:14:34,112 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 10:14:34,114 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 10:14:34,114 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 10:14:34,115 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 10:14:34,116 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 10:14:34,116 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 10:14:34,116 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 10:14:34,117 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 10:14:34,118 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 10:14:34,119 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 10:14:34,120 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 10:14:34,120 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 10:14:34,121 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 10:14:34,121 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 10:14:34,121 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 10:14:34,122 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 10:14:34,122 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 10:14:34,123 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 10:14:34,148 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 10:14:34,148 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 10:14:34,149 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 10:14:34,149 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 10:14:34,150 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 10:14:34,150 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 10:14:34,150 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 10:14:34,151 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 10:14:34,151 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 10:14:34,151 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 10:14:34,151 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 10:14:34,152 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 10:14:34,152 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 10:14:34,152 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 10:14:34,152 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 10:14:34,152 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 10:14:34,152 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 10:14:34,153 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 10:14:34,153 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 10:14:34,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 10:14:34,153 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 10:14:34,153 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 10:14:34,153 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 10:14:34,153 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 10:14:34,154 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 10:14:34,154 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 10:14:34,154 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 10:14:34,155 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 10:14:34,155 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 10:14:34,155 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be41ee8ace02416f2e9952c11df8cb43e10a04c126211792ad12271f5624b8e0 [2021-11-07 10:14:34,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 10:14:34,336 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 10:14:34,338 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 10:14:34,339 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 10:14:34,340 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 10:14:34,341 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i [2021-11-07 10:14:34,380 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bef1be0e8/0550a18f5a9c4fcb9d8f5e56a20c698e/FLAGafb46976c [2021-11-07 10:14:34,869 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 10:14:34,870 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i [2021-11-07 10:14:34,906 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bef1be0e8/0550a18f5a9c4fcb9d8f5e56a20c698e/FLAGafb46976c [2021-11-07 10:14:35,106 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bef1be0e8/0550a18f5a9c4fcb9d8f5e56a20c698e [2021-11-07 10:14:35,110 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 10:14:35,111 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 10:14:35,113 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 10:14:35,113 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 10:14:35,115 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 10:14:35,115 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:14:35" (1/1) ... [2021-11-07 10:14:35,117 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77a9d52d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:14:35, skipping insertion in model container [2021-11-07 10:14:35,117 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:14:35" (1/1) ... [2021-11-07 10:14:35,121 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 10:14:35,177 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 10:14:35,357 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] [2021-11-07 10:14:35,363 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] [2021-11-07 10:14:35,374 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 10:14:35,378 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 10:14:35,769 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:14:35,769 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:14:35,770 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:14:35,770 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:14:35,771 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:14:35,780 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:14:35,788 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:14:35,790 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:14:35,790 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:14:35,792 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:14:35,792 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:14:35,800 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:14:35,800 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:14:35,976 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 10:14:35,977 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 10:14:35,977 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 10:14:35,978 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 10:14:35,979 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 10:14:35,979 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 10:14:35,980 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 10:14:35,980 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 10:14:35,981 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 10:14:35,981 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 10:14:36,062 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 10:14:36,094 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 10:14:36,108 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 10:14:36,122 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] [2021-11-07 10:14:36,122 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] [2021-11-07 10:14:36,124 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 10:14:36,124 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 10:14:36,163 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:14:36,163 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:14:36,164 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:14:36,164 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:14:36,165 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:14:36,174 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:14:36,175 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:14:36,179 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:14:36,179 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:14:36,180 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:14:36,181 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:14:36,182 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:14:36,182 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:14:36,235 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 10:14:36,236 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 10:14:36,237 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 10:14:36,238 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 10:14:36,240 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 10:14:36,240 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 10:14:36,241 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 10:14:36,241 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 10:14:36,242 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 10:14:36,242 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 10:14:36,259 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 10:14:36,284 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 10:14:36,437 INFO L208 MainTranslator]: Completed translation [2021-11-07 10:14:36,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:14:36 WrapperNode [2021-11-07 10:14:36,438 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 10:14:36,439 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 10:14:36,439 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 10:14:36,439 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 10:14:36,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:14:36" (1/1) ... [2021-11-07 10:14:36,495 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:14:36" (1/1) ... [2021-11-07 10:14:36,533 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 10:14:36,534 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 10:14:36,534 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 10:14:36,534 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 10:14:36,540 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:14:36" (1/1) ... [2021-11-07 10:14:36,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:14:36" (1/1) ... [2021-11-07 10:14:36,545 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:14:36" (1/1) ... [2021-11-07 10:14:36,546 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:14:36" (1/1) ... [2021-11-07 10:14:36,566 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:14:36" (1/1) ... [2021-11-07 10:14:36,571 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:14:36" (1/1) ... [2021-11-07 10:14:36,573 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:14:36" (1/1) ... [2021-11-07 10:14:36,576 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 10:14:36,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 10:14:36,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 10:14:36,577 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 10:14:36,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:14:36" (1/1) ... [2021-11-07 10:14:36,597 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 10:14:36,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:14:36,620 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) [2021-11-07 10:14:36,623 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 [2021-11-07 10:14:36,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 10:14:36,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 10:14:36,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 10:14:36,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 10:14:36,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 10:14:36,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 10:14:36,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 10:14:36,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 10:14:36,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 10:14:37,019 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 10:14:37,020 INFO L299 CfgBuilder]: Removed 36 assume(true) statements. [2021-11-07 10:14:37,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:14:37 BoogieIcfgContainer [2021-11-07 10:14:37,021 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 10:14:37,022 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 10:14:37,022 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 10:14:37,025 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 10:14:37,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 10:14:35" (1/3) ... [2021-11-07 10:14:37,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13cc785a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:14:37, skipping insertion in model container [2021-11-07 10:14:37,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:14:36" (2/3) ... [2021-11-07 10:14:37,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13cc785a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:14:37, skipping insertion in model container [2021-11-07 10:14:37,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:14:37" (3/3) ... [2021-11-07 10:14:37,027 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_string_bytes_harness.i [2021-11-07 10:14:37,031 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 10:14:37,033 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-07 10:14:37,070 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 10:14:37,076 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 [2021-11-07 10:14:37,078 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-07 10:14:37,097 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) [2021-11-07 10:14:37,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-07 10:14:37,103 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:14:37,104 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] [2021-11-07 10:14:37,104 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 10:14:37,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:14:37,129 INFO L85 PathProgramCache]: Analyzing trace with hash 625727524, now seen corresponding path program 1 times [2021-11-07 10:14:37,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:14:37,135 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606592607] [2021-11-07 10:14:37,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:14:37,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:14:37,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:14:37,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:14:37,349 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:14:37,349 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606592607] [2021-11-07 10:14:37,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606592607] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:14:37,350 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:14:37,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 10:14:37,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829952861] [2021-11-07 10:14:37,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:14:37,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 10:14:37,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:14:37,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 10:14:37,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 10:14:37,379 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) [2021-11-07 10:14:37,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:14:37,392 INFO L93 Difference]: Finished difference Result 76 states and 93 transitions. [2021-11-07 10:14:37,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 10:14:37,394 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 [2021-11-07 10:14:37,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:14:37,399 INFO L225 Difference]: With dead ends: 76 [2021-11-07 10:14:37,399 INFO L226 Difference]: Without dead ends: 35 [2021-11-07 10:14:37,401 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.02ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 10:14:37,404 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.93ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 10:14:37,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.93ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 10:14:37,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-11-07 10:14:37,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-11-07 10:14:37,424 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) [2021-11-07 10:14:37,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2021-11-07 10:14:37,427 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 24 [2021-11-07 10:14:37,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:14:37,428 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2021-11-07 10:14:37,428 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) [2021-11-07 10:14:37,428 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2021-11-07 10:14:37,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-07 10:14:37,430 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:14:37,430 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] [2021-11-07 10:14:37,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 10:14:37,431 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 10:14:37,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:14:37,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1050276392, now seen corresponding path program 1 times [2021-11-07 10:14:37,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:14:37,439 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752620271] [2021-11-07 10:14:37,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:14:37,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:14:37,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:14:37,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:14:37,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:14:37,675 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752620271] [2021-11-07 10:14:37,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752620271] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:14:37,675 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:14:37,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-07 10:14:37,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556707809] [2021-11-07 10:14:37,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:14:37,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 10:14:37,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:14:37,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 10:14:37,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-11-07 10:14:37,678 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) [2021-11-07 10:14:37,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:14:37,844 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2021-11-07 10:14:37,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 10:14:37,845 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 [2021-11-07 10:14:37,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:14:37,845 INFO L225 Difference]: With dead ends: 54 [2021-11-07 10:14:37,845 INFO L226 Difference]: Without dead ends: 35 [2021-11-07 10:14:37,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 140.55ms TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2021-11-07 10:14:37,847 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 126 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.02ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.76ms IncrementalHoareTripleChecker+Time [2021-11-07 10:14:37,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 134 Invalid, 64 Unknown, 0 Unchecked, 3.02ms Time], IncrementalHoareTripleChecker [15 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 53.76ms Time] [2021-11-07 10:14:37,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-11-07 10:14:37,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-11-07 10:14:37,851 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) [2021-11-07 10:14:37,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2021-11-07 10:14:37,852 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 24 [2021-11-07 10:14:37,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:14:37,852 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2021-11-07 10:14:37,852 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) [2021-11-07 10:14:37,852 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2021-11-07 10:14:37,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-07 10:14:37,853 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:14:37,853 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] [2021-11-07 10:14:37,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 10:14:37,853 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 10:14:37,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:14:37,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1859623018, now seen corresponding path program 1 times [2021-11-07 10:14:37,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:14:37,854 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312525322] [2021-11-07 10:14:37,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:14:37,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:14:37,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:14:38,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:14:38,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:14:38,186 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312525322] [2021-11-07 10:14:38,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312525322] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:14:38,186 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:14:38,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-07 10:14:38,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008025549] [2021-11-07 10:14:38,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:14:38,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 10:14:38,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:14:38,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 10:14:38,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-11-07 10:14:38,191 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) [2021-11-07 10:14:38,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:14:38,360 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2021-11-07 10:14:38,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 10:14:38,360 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 [2021-11-07 10:14:38,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:14:38,362 INFO L225 Difference]: With dead ends: 35 [2021-11-07 10:14:38,362 INFO L226 Difference]: Without dead ends: 33 [2021-11-07 10:14:38,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 156.42ms TimeCoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2021-11-07 10:14:38,366 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 147 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.65ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.13ms IncrementalHoareTripleChecker+Time [2021-11-07 10:14:38,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 113 Invalid, 61 Unknown, 0 Unchecked, 5.65ms Time], IncrementalHoareTripleChecker [9 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 50.13ms Time] [2021-11-07 10:14:38,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-11-07 10:14:38,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-11-07 10:14:38,372 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) [2021-11-07 10:14:38,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2021-11-07 10:14:38,379 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 24 [2021-11-07 10:14:38,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:14:38,379 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2021-11-07 10:14:38,380 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) [2021-11-07 10:14:38,380 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2021-11-07 10:14:38,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-07 10:14:38,380 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:14:38,380 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] [2021-11-07 10:14:38,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 10:14:38,380 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 10:14:38,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:14:38,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1676025637, now seen corresponding path program 1 times [2021-11-07 10:14:38,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:14:38,381 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632141] [2021-11-07 10:14:38,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:14:38,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:14:38,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:14:38,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:14:38,628 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:14:38,629 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632141] [2021-11-07 10:14:38,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632141] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:14:38,629 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:14:38,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 10:14:38,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002690138] [2021-11-07 10:14:38,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:14:38,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 10:14:38,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:14:38,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 10:14:38,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 10:14:38,631 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) [2021-11-07 10:14:38,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:14:38,677 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2021-11-07 10:14:38,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 10:14:38,677 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 [2021-11-07 10:14:38,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:14:38,678 INFO L225 Difference]: With dead ends: 33 [2021-11-07 10:14:38,678 INFO L226 Difference]: Without dead ends: 0 [2021-11-07 10:14:38,679 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 67.39ms TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-07 10:14:38,681 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 5 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.14ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.44ms IncrementalHoareTripleChecker+Time [2021-11-07 10:14:38,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 5 Invalid, 8 Unknown, 0 Unchecked, 0.14ms Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 9.44ms Time] [2021-11-07 10:14:38,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-07 10:14:38,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-07 10:14:38,685 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) [2021-11-07 10:14:38,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-07 10:14:38,686 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2021-11-07 10:14:38,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:14:38,686 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 10:14:38,687 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) [2021-11-07 10:14:38,688 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-07 10:14:38,688 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-07 10:14:38,690 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-11-07 10:14:38,692 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-07 10:14:38,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 10:14:38,693 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-07 10:14:38,712 INFO L854 garLoopResultBuilder]: At program point L6295(lines 6292 6296) the Hoare annotation is: false [2021-11-07 10:14:38,713 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-07 10:14:38,713 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-07 10:14:38,713 INFO L858 garLoopResultBuilder]: For program point L222(lines 222 224) no Hoare annotation was computed. [2021-11-07 10:14:38,713 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-07 10:14:38,713 INFO L858 garLoopResultBuilder]: For program point L222-1(lines 222 224) no Hoare annotation was computed. [2021-11-07 10:14:38,713 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-07 10:14:38,713 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-07 10:14:38,714 INFO L858 garLoopResultBuilder]: For program point L210(lines 210 212) no Hoare annotation was computed. [2021-11-07 10:14:38,714 INFO L858 garLoopResultBuilder]: For program point L210-1(lines 210 212) no Hoare annotation was computed. [2021-11-07 10:14:38,714 INFO L858 garLoopResultBuilder]: For program point L210-2(lines 210 212) no Hoare annotation was computed. [2021-11-07 10:14:38,714 INFO L858 garLoopResultBuilder]: For program point L6854(lines 6854 6855) no Hoare annotation was computed. [2021-11-07 10:14:38,714 INFO L858 garLoopResultBuilder]: For program point L6854-2(lines 6854 6855) no Hoare annotation was computed. [2021-11-07 10:14:38,714 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-07 10:14:38,714 INFO L858 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-11-07 10:14:38,715 INFO L858 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-11-07 10:14:38,715 INFO L858 garLoopResultBuilder]: For program point L223-3(line 223) no Hoare annotation was computed. [2021-11-07 10:14:38,715 INFO L858 garLoopResultBuilder]: For program point L7259(lines 7259 7263) no Hoare annotation was computed. [2021-11-07 10:14:38,715 INFO L858 garLoopResultBuilder]: For program point L223-4(line 223) no Hoare annotation was computed. [2021-11-07 10:14:38,715 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-11-07 10:14:38,715 INFO L858 garLoopResultBuilder]: For program point L211-2(line 211) no Hoare annotation was computed. [2021-11-07 10:14:38,715 INFO L858 garLoopResultBuilder]: For program point L211-4(line 211) no Hoare annotation was computed. [2021-11-07 10:14:38,716 INFO L854 garLoopResultBuilder]: At program point L6859(lines 6850 6860) the Hoare annotation is: false [2021-11-07 10:14:38,716 INFO L854 garLoopResultBuilder]: At program point L261(line 261) the Hoare annotation is: false [2021-11-07 10:14:38,716 INFO L858 garLoopResultBuilder]: For program point L6306(line 6306) no Hoare annotation was computed. [2021-11-07 10:14:38,716 INFO L858 garLoopResultBuilder]: For program point L6306-3(line 6306) no Hoare annotation was computed. [2021-11-07 10:14:38,717 INFO L854 garLoopResultBuilder]: At program point L6847(lines 6844 6848) the Hoare annotation is: false [2021-11-07 10:14:38,718 INFO L861 garLoopResultBuilder]: At program point L7264(line 7264) the Hoare annotation is: true [2021-11-07 10:14:38,718 INFO L858 garLoopResultBuilder]: For program point L6306-2(line 6306) no Hoare annotation was computed. [2021-11-07 10:14:38,718 INFO L858 garLoopResultBuilder]: For program point L6306-7(line 6306) no Hoare annotation was computed. [2021-11-07 10:14:38,718 INFO L858 garLoopResultBuilder]: For program point L6306-5(line 6306) no Hoare annotation was computed. [2021-11-07 10:14:38,718 INFO L854 garLoopResultBuilder]: At program point L6306-6(lines 6302 6307) the Hoare annotation is: false [2021-11-07 10:14:38,718 INFO L854 garLoopResultBuilder]: At program point L6934(lines 6933 6935) the Hoare annotation is: false [2021-11-07 10:14:38,719 INFO L854 garLoopResultBuilder]: At program point L6839(lines 6837 6842) the Hoare annotation is: false [2021-11-07 10:14:38,719 INFO L858 garLoopResultBuilder]: For program point L6306-12(line 6306) no Hoare annotation was computed. [2021-11-07 10:14:38,719 INFO L858 garLoopResultBuilder]: For program point L6306-9(line 6306) no Hoare annotation was computed. [2021-11-07 10:14:38,719 INFO L858 garLoopResultBuilder]: For program point L6306-10(line 6306) no Hoare annotation was computed. [2021-11-07 10:14:38,719 INFO L854 garLoopResultBuilder]: At program point L6930(lines 6926 6931) the Hoare annotation is: false [2021-11-07 10:14:38,719 INFO L854 garLoopResultBuilder]: At program point L6306-13(lines 6302 6307) the Hoare annotation is: false [2021-11-07 10:14:38,719 INFO L854 garLoopResultBuilder]: At program point L266(line 266) the Hoare annotation is: (= ULTIMATE.start_ensure_string_is_allocated_bounded_length_~max_size 18446744073710786165) [2021-11-07 10:14:38,738 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-07 10:14:38,739 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 10:14:38,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 10:14:38 BoogieIcfgContainer [2021-11-07 10:14:38,749 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 10:14:38,749 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 10:14:38,750 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 10:14:38,750 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 10:14:38,750 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:14:37" (3/4) ... [2021-11-07 10:14:38,752 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-07 10:14:38,759 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2021-11-07 10:14:38,759 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-07 10:14:38,759 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 10:14:38,760 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 10:14:38,787 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-11-07 10:14:38,787 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 10:14:38,788 INFO L158 Benchmark]: Toolchain (without parser) took 3677.23ms. Allocated memory was 113.2MB in the beginning and 241.2MB in the end (delta: 127.9MB). Free memory was 80.6MB in the beginning and 181.4MB in the end (delta: -100.7MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. [2021-11-07 10:14:38,788 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 113.2MB. Free memory is still 70.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-07 10:14:38,789 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1325.13ms. Allocated memory was 113.2MB in the beginning and 151.0MB in the end (delta: 37.7MB). Free memory was 80.4MB in the beginning and 94.9MB in the end (delta: -14.5MB). Peak memory consumption was 52.6MB. Max. memory is 16.1GB. [2021-11-07 10:14:38,789 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.61ms. Allocated memory is still 151.0MB. Free memory was 94.9MB in the beginning and 89.9MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-07 10:14:38,789 INFO L158 Benchmark]: Boogie Preprocessor took 42.74ms. Allocated memory is still 151.0MB. Free memory was 89.9MB in the beginning and 87.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-07 10:14:38,789 INFO L158 Benchmark]: RCFGBuilder took 444.34ms. Allocated memory is still 151.0MB. Free memory was 87.4MB in the beginning and 69.7MB in the end (delta: 17.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-07 10:14:38,790 INFO L158 Benchmark]: TraceAbstraction took 1726.61ms. Allocated memory was 151.0MB in the beginning and 241.2MB in the end (delta: 90.2MB). Free memory was 68.9MB in the beginning and 186.6MB in the end (delta: -117.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-07 10:14:38,790 INFO L158 Benchmark]: Witness Printer took 38.18ms. Allocated memory is still 241.2MB. Free memory was 186.6MB in the beginning and 181.4MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-07 10:14:38,791 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 113.2MB. Free memory is still 70.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1325.13ms. Allocated memory was 113.2MB in the beginning and 151.0MB in the end (delta: 37.7MB). Free memory was 80.4MB in the beginning and 94.9MB in the end (delta: -14.5MB). Peak memory consumption was 52.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.61ms. Allocated memory is still 151.0MB. Free memory was 94.9MB in the beginning and 89.9MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.74ms. Allocated memory is still 151.0MB. Free memory was 89.9MB in the beginning and 87.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 444.34ms. Allocated memory is still 151.0MB. Free memory was 87.4MB in the beginning and 69.7MB in the end (delta: 17.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1726.61ms. Allocated memory was 151.0MB in the beginning and 241.2MB in the end (delta: 90.2MB). Free memory was 68.9MB in the beginning and 186.6MB in the end (delta: -117.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 38.18ms. Allocated memory is still 241.2MB. Free memory was 186.6MB in the beginning and 181.4MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms 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: 1670.16ms, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 20.82ms, AutomataDifference: 453.49ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 19.57ms, InitialAbstractionConstructionTime: 6.92ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 278 SdHoareTripleChecker+Valid, 113.33ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 278 mSDsluCounter, 296 SdHoareTripleChecker+Invalid, 96.88ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 199 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 109 IncrementalHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 97 mSDtfsCounter, 109 mSolverCounterSat, 9.74ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 364.38ms 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: 31.28ms AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 12 NumberOfFragments, 13 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 6.01ms HoareSimplificationTime, 11 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 7.35ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 19.75ms SsaConstructionTime, 235.69ms SatisfiabilityAnalysisTime, 656.45ms InterpolantComputationTime, 103 NumberOfCodeBlocks, 103 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 99 ConstructedInterpolants, 0 QuantifiedInterpolants, 313 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 == 18446744073710786165 - 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! [2021-11-07 10:14:38,824 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