./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_string_new_from_string_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 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_new_from_string_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 618de5120235c3340e11b4958ef07a29ea7e443f67840fe760124caab804e862 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 03:23:15,226 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 03:23:15,228 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 03:23:15,257 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 03:23:15,257 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 03:23:15,260 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 03:23:15,260 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 03:23:15,264 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 03:23:15,265 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 03:23:15,269 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 03:23:15,269 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 03:23:15,270 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 03:23:15,271 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 03:23:15,272 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 03:23:15,273 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 03:23:15,277 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 03:23:15,278 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 03:23:15,278 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 03:23:15,280 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 03:23:15,284 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 03:23:15,285 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 03:23:15,285 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 03:23:15,286 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 03:23:15,287 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 03:23:15,292 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 03:23:15,292 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 03:23:15,292 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 03:23:15,293 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 03:23:15,293 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 03:23:15,294 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 03:23:15,299 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 03:23:15,299 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 03:23:15,300 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 03:23:15,301 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 03:23:15,302 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 03:23:15,302 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 03:23:15,302 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 03:23:15,303 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 03:23:15,303 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 03:23:15,304 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 03:23:15,304 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 03:23:15,308 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 03:23:15,335 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 03:23:15,335 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 03:23:15,336 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 03:23:15,336 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 03:23:15,337 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 03:23:15,337 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 03:23:15,338 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 03:23:15,338 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 03:23:15,338 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 03:23:15,338 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 03:23:15,339 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 03:23:15,339 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 03:23:15,339 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 03:23:15,340 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 03:23:15,340 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 03:23:15,340 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 03:23:15,340 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 03:23:15,340 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 03:23:15,340 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 03:23:15,341 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 03:23:15,341 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 03:23:15,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 03:23:15,341 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 03:23:15,341 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 03:23:15,341 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 03:23:15,341 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 03:23:15,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 03:23:15,342 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 03:23:15,342 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 03:23:15,342 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 03:23:15,342 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 618de5120235c3340e11b4958ef07a29ea7e443f67840fe760124caab804e862 [2021-12-28 03:23:15,595 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 03:23:15,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 03:23:15,633 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 03:23:15,634 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 03:23:15,634 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 03:23:15,635 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_string_new_from_string_harness.i [2021-12-28 03:23:15,692 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/226007f84/62cbc03cd4b4474db95b6b0e20fa0300/FLAGfe36fa4c9 [2021-12-28 03:23:16,239 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 03:23:16,240 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_new_from_string_harness.i [2021-12-28 03:23:16,278 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/226007f84/62cbc03cd4b4474db95b6b0e20fa0300/FLAGfe36fa4c9 [2021-12-28 03:23:16,437 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/226007f84/62cbc03cd4b4474db95b6b0e20fa0300 [2021-12-28 03:23:16,440 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 03:23:16,442 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 03:23:16,446 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 03:23:16,446 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 03:23:16,450 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 03:23:16,450 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 03:23:16" (1/1) ... [2021-12-28 03:23:16,452 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f302f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:23:16, skipping insertion in model container [2021-12-28 03:23:16,452 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 03:23:16" (1/1) ... [2021-12-28 03:23:16,460 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 03:23:16,583 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 03:23:16,773 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_new_from_string_harness.i[4500,4513] [2021-12-28 03:23:16,778 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_new_from_string_harness.i[4560,4573] [2021-12-28 03:23:17,301 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:23:17,303 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:23:17,303 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:23:17,304 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:23:17,305 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:23:17,311 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:23:17,314 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:23:17,317 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:23:17,318 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:23:17,596 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-28 03:23:17,596 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-28 03:23:17,597 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-28 03:23:17,598 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-28 03:23:17,602 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-28 03:23:17,604 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-28 03:23:17,605 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-28 03:23:17,606 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-28 03:23:17,606 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-28 03:23:17,608 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-28 03:23:17,715 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-28 03:23:17,775 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:23:17,783 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:23:17,859 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 03:23:17,901 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 03:23:17,917 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_new_from_string_harness.i[4500,4513] [2021-12-28 03:23:17,917 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_new_from_string_harness.i[4560,4573] [2021-12-28 03:23:17,962 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:23:17,963 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:23:17,963 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:23:17,964 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:23:17,964 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:23:17,971 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:23:17,972 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:23:17,973 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:23:17,973 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:23:17,997 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-28 03:23:17,997 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-28 03:23:17,998 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-28 03:23:17,998 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-28 03:23:17,999 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-28 03:23:17,999 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-28 03:23:17,999 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-28 03:23:17,999 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-28 03:23:18,000 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-28 03:23:18,000 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-28 03:23:18,011 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-28 03:23:18,100 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:23:18,100 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-28 03:23:18,152 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 03:23:18,414 INFO L208 MainTranslator]: Completed translation [2021-12-28 03:23:18,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:23:18 WrapperNode [2021-12-28 03:23:18,415 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 03:23:18,416 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 03:23:18,416 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 03:23:18,416 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 03:23:18,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:23:18" (1/1) ... [2021-12-28 03:23:18,504 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:23:18" (1/1) ... [2021-12-28 03:23:18,561 INFO L137 Inliner]: procedures = 690, calls = 2740, calls flagged for inlining = 59, calls inlined = 9, statements flattened = 831 [2021-12-28 03:23:18,561 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 03:23:18,562 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 03:23:18,562 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 03:23:18,562 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 03:23:18,570 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:23:18" (1/1) ... [2021-12-28 03:23:18,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:23:18" (1/1) ... [2021-12-28 03:23:18,582 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:23:18" (1/1) ... [2021-12-28 03:23:18,582 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:23:18" (1/1) ... [2021-12-28 03:23:18,623 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:23:18" (1/1) ... [2021-12-28 03:23:18,626 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:23:18" (1/1) ... [2021-12-28 03:23:18,643 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:23:18" (1/1) ... [2021-12-28 03:23:18,657 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 03:23:18,662 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 03:23:18,663 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 03:23:18,663 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 03:23:18,664 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:23:18" (1/1) ... [2021-12-28 03:23:18,669 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 03:23:18,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:23:18,717 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-28 03:23:18,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-28 03:23:18,771 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2021-12-28 03:23:18,771 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2021-12-28 03:23:18,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 03:23:18,772 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-12-28 03:23:18,772 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-12-28 03:23:18,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2021-12-28 03:23:18,772 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2021-12-28 03:23:18,772 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2021-12-28 03:23:18,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-28 03:23:18,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-28 03:23:18,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 03:23:18,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-28 03:23:18,774 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-28 03:23:18,774 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-12-28 03:23:18,775 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-12-28 03:23:18,775 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-28 03:23:18,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-28 03:23:18,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 03:23:18,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 03:23:18,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 03:23:18,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 03:23:18,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 03:23:18,776 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-12-28 03:23:18,776 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-12-28 03:23:18,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-28 03:23:18,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-28 03:23:18,778 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2021-12-28 03:23:18,778 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2021-12-28 03:23:18,778 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-28 03:23:18,778 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-28 03:23:18,778 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2021-12-28 03:23:18,779 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2021-12-28 03:23:18,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 03:23:18,779 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2021-12-28 03:23:18,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2021-12-28 03:23:18,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 03:23:18,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 03:23:18,780 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_new_from_array [2021-12-28 03:23:18,780 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_new_from_array [2021-12-28 03:23:18,780 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-12-28 03:23:18,780 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-12-28 03:23:18,780 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2021-12-28 03:23:18,780 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2021-12-28 03:23:18,781 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-12-28 03:23:18,781 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-12-28 03:23:18,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 03:23:18,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real [2021-12-28 03:23:18,781 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_new_from_string [2021-12-28 03:23:18,782 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_new_from_string [2021-12-28 03:23:18,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 03:23:19,117 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 03:23:19,119 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 03:23:19,302 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume !true; [2021-12-28 03:23:20,027 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 03:23:20,032 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 03:23:20,032 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-28 03:23:20,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:23:20 BoogieIcfgContainer [2021-12-28 03:23:20,033 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 03:23:20,034 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 03:23:20,034 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 03:23:20,036 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 03:23:20,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 03:23:16" (1/3) ... [2021-12-28 03:23:20,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@705e5cac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 03:23:20, skipping insertion in model container [2021-12-28 03:23:20,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:23:18" (2/3) ... [2021-12-28 03:23:20,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@705e5cac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 03:23:20, skipping insertion in model container [2021-12-28 03:23:20,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:23:20" (3/3) ... [2021-12-28 03:23:20,039 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_string_new_from_string_harness.i [2021-12-28 03:23:20,042 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 03:23:20,042 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 03:23:20,070 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 03:23:20,074 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-28 03:23:20,074 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 03:23:20,086 INFO L276 IsEmpty]: Start isEmpty. Operand has 153 states, 97 states have (on average 1.175257731958763) internal successors, (114), 97 states have internal predecessors, (114), 39 states have call successors, (39), 16 states have call predecessors, (39), 16 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2021-12-28 03:23:20,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-12-28 03:23:20,092 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:23:20,092 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:23:20,093 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:23:20,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:23:20,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1670706302, now seen corresponding path program 1 times [2021-12-28 03:23:20,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:23:20,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062653893] [2021-12-28 03:23:20,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:23:20,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:23:20,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:20,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:23:20,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:20,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-28 03:23:20,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:20,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-28 03:23:20,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:20,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:23:20,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:20,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 03:23:20,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:20,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 03:23:20,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:20,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:23:20,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:20,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 03:23:20,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:20,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:23:20,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:20,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 03:23:20,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:20,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 03:23:20,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:20,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:23:20,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:20,615 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-28 03:23:20,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:23:20,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062653893] [2021-12-28 03:23:20,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062653893] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:23:20,616 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:23:20,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 03:23:20,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139269007] [2021-12-28 03:23:20,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:23:20,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 03:23:20,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:23:20,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 03:23:20,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-28 03:23:20,638 INFO L87 Difference]: Start difference. First operand has 153 states, 97 states have (on average 1.175257731958763) internal successors, (114), 97 states have internal predecessors, (114), 39 states have call successors, (39), 16 states have call predecessors, (39), 16 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 03:23:20,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:23:20,969 INFO L93 Difference]: Finished difference Result 317 states and 419 transitions. [2021-12-28 03:23:20,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-28 03:23:20,971 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 80 [2021-12-28 03:23:20,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:23:20,978 INFO L225 Difference]: With dead ends: 317 [2021-12-28 03:23:20,978 INFO L226 Difference]: Without dead ends: 164 [2021-12-28 03:23:20,981 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-28 03:23:20,983 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 60 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-28 03:23:20,984 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 264 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-28 03:23:20,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2021-12-28 03:23:21,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 147. [2021-12-28 03:23:21,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 91 states have (on average 1.164835164835165) internal successors, (106), 92 states have internal predecessors, (106), 39 states have call successors, (39), 16 states have call predecessors, (39), 16 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2021-12-28 03:23:21,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 183 transitions. [2021-12-28 03:23:21,019 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 183 transitions. Word has length 80 [2021-12-28 03:23:21,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:23:21,019 INFO L470 AbstractCegarLoop]: Abstraction has 147 states and 183 transitions. [2021-12-28 03:23:21,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 03:23:21,020 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 183 transitions. [2021-12-28 03:23:21,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-12-28 03:23:21,022 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:23:21,022 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:23:21,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 03:23:21,022 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:23:21,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:23:21,023 INFO L85 PathProgramCache]: Analyzing trace with hash 2065694084, now seen corresponding path program 1 times [2021-12-28 03:23:21,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:23:21,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141930132] [2021-12-28 03:23:21,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:23:21,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:23:21,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:21,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:23:21,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:21,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-28 03:23:21,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:21,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-28 03:23:21,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:21,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:23:21,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:21,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 03:23:21,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:21,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 03:23:21,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:21,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:23:21,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:21,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 03:23:21,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:21,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:23:21,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:21,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 03:23:21,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:21,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 03:23:21,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:21,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:23:21,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:21,497 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-28 03:23:21,497 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:23:21,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141930132] [2021-12-28 03:23:21,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141930132] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:23:21,498 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:23:21,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-28 03:23:21,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245173186] [2021-12-28 03:23:21,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:23:21,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-28 03:23:21,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:23:21,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-28 03:23:21,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2021-12-28 03:23:21,500 INFO L87 Difference]: Start difference. First operand 147 states and 183 transitions. Second operand has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-28 03:23:22,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:23:22,590 INFO L93 Difference]: Finished difference Result 246 states and 315 transitions. [2021-12-28 03:23:22,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-28 03:23:22,590 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) Word has length 80 [2021-12-28 03:23:22,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:23:22,595 INFO L225 Difference]: With dead ends: 246 [2021-12-28 03:23:22,596 INFO L226 Difference]: Without dead ends: 199 [2021-12-28 03:23:22,598 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2021-12-28 03:23:22,601 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 84 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 973 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 1029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-28 03:23:22,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 925 Invalid, 1029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 973 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-28 03:23:22,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2021-12-28 03:23:22,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 160. [2021-12-28 03:23:22,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 99 states have (on average 1.1515151515151516) internal successors, (114), 102 states have internal predecessors, (114), 42 states have call successors, (42), 16 states have call predecessors, (42), 18 states have return successors, (43), 41 states have call predecessors, (43), 41 states have call successors, (43) [2021-12-28 03:23:22,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 199 transitions. [2021-12-28 03:23:22,631 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 199 transitions. Word has length 80 [2021-12-28 03:23:22,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:23:22,631 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 199 transitions. [2021-12-28 03:23:22,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 4 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-28 03:23:22,632 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 199 transitions. [2021-12-28 03:23:22,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-28 03:23:22,639 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:23:22,639 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:23:22,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 03:23:22,642 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:23:22,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:23:22,643 INFO L85 PathProgramCache]: Analyzing trace with hash -305918410, now seen corresponding path program 1 times [2021-12-28 03:23:22,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:23:22,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736399921] [2021-12-28 03:23:22,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:23:22,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:23:22,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:22,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:23:22,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:22,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-28 03:23:22,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:22,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-28 03:23:22,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:22,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:23:22,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:22,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 03:23:22,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:22,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 03:23:22,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:22,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:23:22,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:22,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 03:23:22,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:22,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-28 03:23:22,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:22,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:23:22,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:22,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 03:23:22,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:22,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 03:23:22,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:22,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:23:22,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:22,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 03:23:22,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:22,998 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-28 03:23:22,998 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:23:22,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736399921] [2021-12-28 03:23:22,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736399921] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:23:22,999 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:23:22,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-28 03:23:22,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474061178] [2021-12-28 03:23:22,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:23:23,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-28 03:23:23,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:23:23,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-28 03:23:23,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-12-28 03:23:23,005 INFO L87 Difference]: Start difference. First operand 160 states and 199 transitions. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 1 states have call successors, (14) [2021-12-28 03:23:23,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:23:23,987 INFO L93 Difference]: Finished difference Result 256 states and 325 transitions. [2021-12-28 03:23:23,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-28 03:23:23,988 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 1 states have call successors, (14) Word has length 95 [2021-12-28 03:23:23,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:23:23,990 INFO L225 Difference]: With dead ends: 256 [2021-12-28 03:23:23,990 INFO L226 Difference]: Without dead ends: 216 [2021-12-28 03:23:23,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-12-28 03:23:23,991 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 141 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-28 03:23:23,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 713 Invalid, 801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-28 03:23:23,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-12-28 03:23:24,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 170. [2021-12-28 03:23:24,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 106 states have (on average 1.1415094339622642) internal successors, (121), 109 states have internal predecessors, (121), 42 states have call successors, (42), 16 states have call predecessors, (42), 21 states have return successors, (48), 44 states have call predecessors, (48), 41 states have call successors, (48) [2021-12-28 03:23:24,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 211 transitions. [2021-12-28 03:23:24,021 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 211 transitions. Word has length 95 [2021-12-28 03:23:24,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:23:24,022 INFO L470 AbstractCegarLoop]: Abstraction has 170 states and 211 transitions. [2021-12-28 03:23:24,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 1 states have call successors, (14) [2021-12-28 03:23:24,022 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 211 transitions. [2021-12-28 03:23:24,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-28 03:23:24,023 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:23:24,024 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:23:24,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 03:23:24,024 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:23:24,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:23:24,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1176778786, now seen corresponding path program 1 times [2021-12-28 03:23:24,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:23:24,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480369731] [2021-12-28 03:23:24,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:23:24,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:23:24,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:24,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:23:24,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:24,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-28 03:23:24,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:24,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-28 03:23:24,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:24,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:23:24,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:24,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 03:23:24,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:24,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 03:23:24,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:24,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 03:23:24,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:24,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:23:24,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:24,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 03:23:24,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:24,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:23:24,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:24,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 03:23:24,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:24,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 03:23:24,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:24,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:23:24,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:24,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 03:23:24,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:24,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-28 03:23:24,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:24,424 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-28 03:23:24,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:23:24,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480369731] [2021-12-28 03:23:24,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480369731] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:23:24,425 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:23:24,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-28 03:23:24,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647830202] [2021-12-28 03:23:24,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:23:24,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-28 03:23:24,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:23:24,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-28 03:23:24,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-28 03:23:24,427 INFO L87 Difference]: Start difference. First operand 170 states and 211 transitions. Second operand has 13 states, 11 states have (on average 5.090909090909091) internal successors, (56), 9 states have internal predecessors, (56), 6 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) [2021-12-28 03:23:25,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:23:25,786 INFO L93 Difference]: Finished difference Result 282 states and 362 transitions. [2021-12-28 03:23:25,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-28 03:23:25,786 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 5.090909090909091) internal successors, (56), 9 states have internal predecessors, (56), 6 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) Word has length 99 [2021-12-28 03:23:25,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:23:25,790 INFO L225 Difference]: With dead ends: 282 [2021-12-28 03:23:25,790 INFO L226 Difference]: Without dead ends: 226 [2021-12-28 03:23:25,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=132, Invalid=518, Unknown=0, NotChecked=0, Total=650 [2021-12-28 03:23:25,792 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 264 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 1150 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 1323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 1150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-28 03:23:25,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [283 Valid, 921 Invalid, 1323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 1150 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-28 03:23:25,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2021-12-28 03:23:25,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 162. [2021-12-28 03:23:25,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 101 states have (on average 1.1485148514851484) internal successors, (116), 103 states have internal predecessors, (116), 41 states have call successors, (41), 16 states have call predecessors, (41), 19 states have return successors, (42), 42 states have call predecessors, (42), 39 states have call successors, (42) [2021-12-28 03:23:25,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 199 transitions. [2021-12-28 03:23:25,823 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 199 transitions. Word has length 99 [2021-12-28 03:23:25,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:23:25,824 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 199 transitions. [2021-12-28 03:23:25,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 5.090909090909091) internal successors, (56), 9 states have internal predecessors, (56), 6 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) [2021-12-28 03:23:25,824 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 199 transitions. [2021-12-28 03:23:25,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-28 03:23:25,826 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:23:25,826 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:23:25,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-28 03:23:25,826 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:23:25,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:23:25,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1965360267, now seen corresponding path program 1 times [2021-12-28 03:23:25,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:23:25,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505401804] [2021-12-28 03:23:25,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:23:25,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:23:26,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:26,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:23:26,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:26,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-28 03:23:26,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:26,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-28 03:23:26,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:26,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:23:26,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:26,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 03:23:26,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:26,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 03:23:26,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:26,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:23:26,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:26,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 03:23:26,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:26,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-28 03:23:26,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:26,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:23:26,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:26,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 03:23:26,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:26,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 03:23:26,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:26,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:23:26,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:26,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 03:23:26,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:26,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 03:23:26,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:26,533 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-12-28 03:23:26,534 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:23:26,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505401804] [2021-12-28 03:23:26,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505401804] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 03:23:26,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1274637453] [2021-12-28 03:23:26,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:23:26,535 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:23:26,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:23:26,560 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 03:23:26,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-28 03:23:27,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:23:27,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 2690 conjuncts, 104 conjunts are in the unsatisfiable core [2021-12-28 03:23:27,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 03:23:27,549 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-28 03:23:30,747 INFO L353 Elim1Store]: treesize reduction 120, result has 21.6 percent of original size [2021-12-28 03:23:30,748 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 223 treesize of output 163 [2021-12-28 03:23:30,958 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 22 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-28 03:23:30,959 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 03:23:33,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1274637453] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 03:23:33,362 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-28 03:23:33,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 30] total 40 [2021-12-28 03:23:33,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43224440] [2021-12-28 03:23:33,363 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-28 03:23:33,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-12-28 03:23:33,364 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:23:33,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-12-28 03:23:33,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=2209, Unknown=0, NotChecked=0, Total=2352 [2021-12-28 03:23:33,374 INFO L87 Difference]: Start difference. First operand 162 states and 199 transitions. Second operand has 40 states, 34 states have (on average 3.1470588235294117) internal successors, (107), 29 states have internal predecessors, (107), 14 states have call successors, (32), 8 states have call predecessors, (32), 9 states have return successors, (30), 14 states have call predecessors, (30), 13 states have call successors, (30) [2021-12-28 03:23:33,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:23:33,825 INFO L93 Difference]: Finished difference Result 174 states and 209 transitions. [2021-12-28 03:23:33,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-28 03:23:33,827 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 34 states have (on average 3.1470588235294117) internal successors, (107), 29 states have internal predecessors, (107), 14 states have call successors, (32), 8 states have call predecessors, (32), 9 states have return successors, (30), 14 states have call predecessors, (30), 13 states have call successors, (30) Word has length 103 [2021-12-28 03:23:33,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:23:33,828 INFO L225 Difference]: With dead ends: 174 [2021-12-28 03:23:33,828 INFO L226 Difference]: Without dead ends: 0 [2021-12-28 03:23:33,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 117 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=200, Invalid=2880, Unknown=0, NotChecked=0, Total=3080 [2021-12-28 03:23:33,831 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 31 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 56 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-28 03:23:33,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 155 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 329 Invalid, 0 Unknown, 56 Unchecked, 0.2s Time] [2021-12-28 03:23:33,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-28 03:23:33,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-28 03:23:33,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 03:23:33,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-28 03:23:33,836 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 103 [2021-12-28 03:23:33,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:23:33,836 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-28 03:23:33,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 34 states have (on average 3.1470588235294117) internal successors, (107), 29 states have internal predecessors, (107), 14 states have call successors, (32), 8 states have call predecessors, (32), 9 states have return successors, (30), 14 states have call predecessors, (30), 13 states have call successors, (30) [2021-12-28 03:23:33,837 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-28 03:23:33,837 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-28 03:23:33,843 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-28 03:23:33,868 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-28 03:23:34,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:23:34,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-28 03:23:34,235 INFO L854 garLoopResultBuilder]: At program point bounded_mallocENTRY(lines 6882 6887) the Hoare annotation is: (or (not (= 195 |~#s_can_fail_allocator_static~0.base|)) (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|))) [2021-12-28 03:23:34,235 INFO L858 garLoopResultBuilder]: For program point bounded_mallocFINAL(lines 6882 6887) no Hoare annotation was computed. [2021-12-28 03:23:34,236 INFO L858 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6882 6887) no Hoare annotation was computed. [2021-12-28 03:23:34,236 INFO L858 garLoopResultBuilder]: For program point L6883-1(lines 6883 6885) no Hoare annotation was computed. [2021-12-28 03:23:34,236 INFO L854 garLoopResultBuilder]: At program point L6883(lines 6883 6885) the Hoare annotation is: (or (not (= 195 |~#s_can_fail_allocator_static~0.base|)) (and (= |bounded_malloc_#in~size| bounded_malloc_~size) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|))) [2021-12-28 03:23:34,236 INFO L861 garLoopResultBuilder]: At program point aws_mem_acquireENTRY(lines 6928 6938) the Hoare annotation is: true [2021-12-28 03:23:34,236 INFO L858 garLoopResultBuilder]: For program point L6934(lines 6934 6936) no Hoare annotation was computed. [2021-12-28 03:23:34,236 INFO L858 garLoopResultBuilder]: For program point L6935-1(line 6935) no Hoare annotation was computed. [2021-12-28 03:23:34,236 INFO L861 garLoopResultBuilder]: At program point L6935(line 6935) the Hoare annotation is: true [2021-12-28 03:23:34,237 INFO L858 garLoopResultBuilder]: For program point aws_mem_acquireEXIT(lines 6928 6938) no Hoare annotation was computed. [2021-12-28 03:23:34,237 INFO L861 garLoopResultBuilder]: At program point L6931-1(line 6931) the Hoare annotation is: true [2021-12-28 03:23:34,237 INFO L861 garLoopResultBuilder]: At program point L6931(line 6931) the Hoare annotation is: true [2021-12-28 03:23:34,237 INFO L858 garLoopResultBuilder]: For program point L6934-2(lines 6934 6936) no Hoare annotation was computed. [2021-12-28 03:23:34,237 INFO L858 garLoopResultBuilder]: For program point L6933(line 6933) no Hoare annotation was computed. [2021-12-28 03:23:34,237 INFO L858 garLoopResultBuilder]: For program point L6929-2(line 6929) no Hoare annotation was computed. [2021-12-28 03:23:34,237 INFO L861 garLoopResultBuilder]: At program point L6929-1(line 6929) the Hoare annotation is: true [2021-12-28 03:23:34,237 INFO L861 garLoopResultBuilder]: At program point L6929(line 6929) the Hoare annotation is: true [2021-12-28 03:23:34,237 INFO L858 garLoopResultBuilder]: For program point aws_mem_acquireFINAL(lines 6928 6938) no Hoare annotation was computed. [2021-12-28 03:23:34,238 INFO L858 garLoopResultBuilder]: For program point nondet_boolFINAL(line 261) no Hoare annotation was computed. [2021-12-28 03:23:34,238 INFO L858 garLoopResultBuilder]: For program point nondet_boolEXIT(line 261) no Hoare annotation was computed. [2021-12-28 03:23:34,238 INFO L861 garLoopResultBuilder]: At program point nondet_boolENTRY(line 261) the Hoare annotation is: true [2021-12-28 03:23:34,239 INFO L861 garLoopResultBuilder]: At program point aws_string_is_validENTRY(lines 6252 6257) the Hoare annotation is: true [2021-12-28 03:23:34,239 INFO L858 garLoopResultBuilder]: For program point L6256-2(line 6256) no Hoare annotation was computed. [2021-12-28 03:23:34,239 INFO L858 garLoopResultBuilder]: For program point L6256(line 6256) no Hoare annotation was computed. [2021-12-28 03:23:34,239 INFO L858 garLoopResultBuilder]: For program point L6256-5(line 6256) no Hoare annotation was computed. [2021-12-28 03:23:34,239 INFO L858 garLoopResultBuilder]: For program point aws_string_is_validFINAL(lines 6252 6257) no Hoare annotation was computed. [2021-12-28 03:23:34,239 INFO L858 garLoopResultBuilder]: For program point L6256-3(line 6256) no Hoare annotation was computed. [2021-12-28 03:23:34,239 INFO L858 garLoopResultBuilder]: For program point aws_string_is_validEXIT(lines 6252 6257) no Hoare annotation was computed. [2021-12-28 03:23:34,239 INFO L858 garLoopResultBuilder]: For program point aws_allocator_is_validFINAL(lines 6923 6926) no Hoare annotation was computed. [2021-12-28 03:23:34,240 INFO L858 garLoopResultBuilder]: For program point L6925-1(line 6925) no Hoare annotation was computed. [2021-12-28 03:23:34,240 INFO L861 garLoopResultBuilder]: At program point L6925(line 6925) the Hoare annotation is: true [2021-12-28 03:23:34,240 INFO L861 garLoopResultBuilder]: At program point aws_allocator_is_validENTRY(lines 6923 6926) the Hoare annotation is: true [2021-12-28 03:23:34,240 INFO L858 garLoopResultBuilder]: For program point aws_allocator_is_validEXIT(lines 6923 6926) no Hoare annotation was computed. [2021-12-28 03:23:34,240 INFO L858 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2021-12-28 03:23:34,240 INFO L861 garLoopResultBuilder]: At program point nondet_uint64_tENTRY(line 266) the Hoare annotation is: true [2021-12-28 03:23:34,240 INFO L858 garLoopResultBuilder]: For program point nondet_uint64_tFINAL(line 266) no Hoare annotation was computed. [2021-12-28 03:23:34,240 INFO L861 garLoopResultBuilder]: At program point __CPROVER_overflow_plusENTRY(lines 248 251) the Hoare annotation is: true [2021-12-28 03:23:34,240 INFO L858 garLoopResultBuilder]: For program point __CPROVER_overflow_plusFINAL(lines 248 251) no Hoare annotation was computed. [2021-12-28 03:23:34,241 INFO L858 garLoopResultBuilder]: For program point __CPROVER_overflow_plusEXIT(lines 248 251) no Hoare annotation was computed. [2021-12-28 03:23:34,241 INFO L858 garLoopResultBuilder]: For program point L8989(line 8989) no Hoare annotation was computed. [2021-12-28 03:23:34,241 INFO L858 garLoopResultBuilder]: For program point L8990-1(line 8990) no Hoare annotation was computed. [2021-12-28 03:23:34,241 INFO L861 garLoopResultBuilder]: At program point L8989-1(line 8989) the Hoare annotation is: true [2021-12-28 03:23:34,241 INFO L858 garLoopResultBuilder]: For program point L8989-2(line 8989) no Hoare annotation was computed. [2021-12-28 03:23:34,241 INFO L861 garLoopResultBuilder]: At program point aws_string_new_from_stringENTRY(lines 8988 8991) the Hoare annotation is: true [2021-12-28 03:23:34,241 INFO L861 garLoopResultBuilder]: At program point L8990(line 8990) the Hoare annotation is: true [2021-12-28 03:23:34,242 INFO L861 garLoopResultBuilder]: At program point L8989-4(line 8989) the Hoare annotation is: true [2021-12-28 03:23:34,242 INFO L858 garLoopResultBuilder]: For program point L8989-5(line 8989) no Hoare annotation was computed. [2021-12-28 03:23:34,242 INFO L858 garLoopResultBuilder]: For program point aws_string_new_from_stringEXIT(lines 8988 8991) no Hoare annotation was computed. [2021-12-28 03:23:34,242 INFO L858 garLoopResultBuilder]: For program point aws_string_new_from_stringFINAL(lines 8988 8991) no Hoare annotation was computed. [2021-12-28 03:23:34,242 INFO L861 garLoopResultBuilder]: At program point can_fail_mallocENTRY(lines 6899 6903) the Hoare annotation is: true [2021-12-28 03:23:34,242 INFO L858 garLoopResultBuilder]: For program point L6900-3(lines 6900 6902) no Hoare annotation was computed. [2021-12-28 03:23:34,242 INFO L861 garLoopResultBuilder]: At program point L6902(line 6902) the Hoare annotation is: true [2021-12-28 03:23:34,242 INFO L858 garLoopResultBuilder]: For program point can_fail_mallocFINAL(lines 6899 6903) no Hoare annotation was computed. [2021-12-28 03:23:34,243 INFO L858 garLoopResultBuilder]: For program point L6900-1(lines 6900 6902) no Hoare annotation was computed. [2021-12-28 03:23:34,243 INFO L858 garLoopResultBuilder]: For program point can_fail_mallocEXIT(lines 6899 6903) no Hoare annotation was computed. [2021-12-28 03:23:34,243 INFO L861 garLoopResultBuilder]: At program point L6900(line 6900) the Hoare annotation is: true [2021-12-28 03:23:34,243 INFO L858 garLoopResultBuilder]: For program point L6902-1(line 6902) no Hoare annotation was computed. [2021-12-28 03:23:34,243 INFO L861 garLoopResultBuilder]: At program point aws_string_new_from_arrayENTRY(lines 8964 8986) the Hoare annotation is: true [2021-12-28 03:23:34,243 INFO L858 garLoopResultBuilder]: For program point L8985-4(line 8985) no Hoare annotation was computed. [2021-12-28 03:23:34,243 INFO L861 garLoopResultBuilder]: At program point L8985-1(line 8985) the Hoare annotation is: true [2021-12-28 03:23:34,243 INFO L861 garLoopResultBuilder]: At program point L8983(line 8983) the Hoare annotation is: true [2021-12-28 03:23:34,243 INFO L858 garLoopResultBuilder]: For program point L8985-2(line 8985) no Hoare annotation was computed. [2021-12-28 03:23:34,244 INFO L858 garLoopResultBuilder]: For program point L8983-1(line 8983) no Hoare annotation was computed. [2021-12-28 03:23:34,244 INFO L861 garLoopResultBuilder]: At program point L8985-3(line 8985) the Hoare annotation is: true [2021-12-28 03:23:34,244 INFO L861 garLoopResultBuilder]: At program point L8973(line 8973) the Hoare annotation is: true [2021-12-28 03:23:34,244 INFO L858 garLoopResultBuilder]: For program point L8973-1(line 8973) no Hoare annotation was computed. [2021-12-28 03:23:34,244 INFO L861 garLoopResultBuilder]: At program point L8965(line 8965) the Hoare annotation is: true [2021-12-28 03:23:34,244 INFO L858 garLoopResultBuilder]: For program point aws_string_new_from_arrayFINAL(lines 8964 8986) no Hoare annotation was computed. [2021-12-28 03:23:34,244 INFO L861 garLoopResultBuilder]: At program point L8965-1(line 8965) the Hoare annotation is: true [2021-12-28 03:23:34,245 INFO L858 garLoopResultBuilder]: For program point aws_string_new_from_arrayEXIT(lines 8964 8986) no Hoare annotation was computed. [2021-12-28 03:23:34,245 INFO L858 garLoopResultBuilder]: For program point L8974(lines 8974 8978) no Hoare annotation was computed. [2021-12-28 03:23:34,245 INFO L861 garLoopResultBuilder]: At program point L8968(line 8968) the Hoare annotation is: true [2021-12-28 03:23:34,245 INFO L858 garLoopResultBuilder]: For program point L8968-1(line 8968) no Hoare annotation was computed. [2021-12-28 03:23:34,246 INFO L858 garLoopResultBuilder]: For program point L8966(line 8966) no Hoare annotation was computed. [2021-12-28 03:23:34,246 INFO L858 garLoopResultBuilder]: For program point L8968-2(lines 8968 8972) no Hoare annotation was computed. [2021-12-28 03:23:34,246 INFO L861 garLoopResultBuilder]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-12-28 03:23:34,246 INFO L861 garLoopResultBuilder]: At program point L-1-3(line -1) the Hoare annotation is: true [2021-12-28 03:23:34,246 INFO L858 garLoopResultBuilder]: For program point #Ultimate.C_memcpyFINAL(line -1) no Hoare annotation was computed. [2021-12-28 03:23:34,246 INFO L861 garLoopResultBuilder]: At program point #Ultimate.C_memcpyENTRY(line -1) the Hoare annotation is: true [2021-12-28 03:23:34,247 INFO L858 garLoopResultBuilder]: For program point #Ultimate.C_memcpyEXIT(line -1) no Hoare annotation was computed. [2021-12-28 03:23:34,247 INFO L858 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2021-12-28 03:23:34,247 INFO L861 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 210 212) the Hoare annotation is: true [2021-12-28 03:23:34,247 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-12-28 03:23:34,247 INFO L858 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2021-12-28 03:23:34,247 INFO L861 garLoopResultBuilder]: At program point aws_raise_errorENTRY(lines 1988 1999) the Hoare annotation is: true [2021-12-28 03:23:34,247 INFO L858 garLoopResultBuilder]: For program point aws_raise_errorFINAL(lines 1988 1999) no Hoare annotation was computed. [2021-12-28 03:23:34,247 INFO L858 garLoopResultBuilder]: For program point aws_raise_errorEXIT(lines 1988 1999) no Hoare annotation was computed. [2021-12-28 03:23:34,248 INFO L858 garLoopResultBuilder]: For program point L7317(lines 7317 7319) no Hoare annotation was computed. [2021-12-28 03:23:34,248 INFO L858 garLoopResultBuilder]: For program point can_fail_allocatorFINAL(lines 6889 6891) no Hoare annotation was computed. [2021-12-28 03:23:34,263 INFO L858 garLoopResultBuilder]: For program point can_fail_allocatorEXIT(lines 6889 6891) no Hoare annotation was computed. [2021-12-28 03:23:34,263 INFO L861 garLoopResultBuilder]: At program point can_fail_allocatorENTRY(lines 6889 6891) the Hoare annotation is: true [2021-12-28 03:23:34,263 INFO L861 garLoopResultBuilder]: At program point L2545(lines 2541 2546) the Hoare annotation is: true [2021-12-28 03:23:34,264 INFO L861 garLoopResultBuilder]: At program point aws_add_size_checkedENTRY(lines 2613 2621) the Hoare annotation is: true [2021-12-28 03:23:34,264 INFO L861 garLoopResultBuilder]: At program point L2542(line 2542) the Hoare annotation is: true [2021-12-28 03:23:34,264 INFO L858 garLoopResultBuilder]: For program point L2543-1(line 2543) no Hoare annotation was computed. [2021-12-28 03:23:34,264 INFO L861 garLoopResultBuilder]: At program point L2543(line 2543) the Hoare annotation is: true [2021-12-28 03:23:34,264 INFO L858 garLoopResultBuilder]: For program point L2542-1(lines 2542 2543) no Hoare annotation was computed. [2021-12-28 03:23:34,264 INFO L858 garLoopResultBuilder]: For program point aws_add_size_checkedFINAL(lines 2613 2621) no Hoare annotation was computed. [2021-12-28 03:23:34,264 INFO L858 garLoopResultBuilder]: For program point aws_add_size_checkedEXIT(lines 2613 2621) no Hoare annotation was computed. [2021-12-28 03:23:34,264 INFO L854 garLoopResultBuilder]: At program point L6815(lines 6806 6816) the Hoare annotation is: false [2021-12-28 03:23:34,265 INFO L858 garLoopResultBuilder]: For program point L9338(lines 9338 9344) no Hoare annotation was computed. [2021-12-28 03:23:34,265 INFO L858 garLoopResultBuilder]: For program point L7100-1(lines 7099 7112) no Hoare annotation was computed. [2021-12-28 03:23:34,265 INFO L854 garLoopResultBuilder]: At program point L7100(line 7100) the Hoare annotation is: false [2021-12-28 03:23:34,265 INFO L858 garLoopResultBuilder]: For program point L6807-1(line 6807) no Hoare annotation was computed. [2021-12-28 03:23:34,265 INFO L854 garLoopResultBuilder]: At program point L6807(line 6807) the Hoare annotation is: (and (let ((.cse0 (* (div |ULTIMATE.start_ensure_string_is_allocated_bounded_length_~len~1#1| 18446744073709551616) 18446744073709551616))) (<= (+ 18446744073709551616 .cse0) (+ |ULTIMATE.start_ensure_string_is_allocated_bounded_length_~len~1#1| (* 18446744073709551616 (div (+ (* (- 1) |ULTIMATE.start_ensure_string_is_allocated_bounded_length_~len~1#1|) 18446744073710786164 .cse0) 18446744073709551616))))) (= 195 |~#s_can_fail_allocator_static~0.base|) (<= 18446744073709551616 (+ |ULTIMATE.start_ensure_string_is_allocated_~len#1| (* 18446744073709551616 (div (+ 18446744073710786164 (* (- 1) |ULTIMATE.start_ensure_string_is_allocated_~len#1|)) 18446744073709551616)))) (= (+ |ULTIMATE.start_ensure_string_is_allocated_bounded_length_~max_size#1| (- 18446744073710786165)) 0)) [2021-12-28 03:23:34,265 INFO L854 garLoopResultBuilder]: At program point L6803(lines 6800 6804) the Hoare annotation is: false [2021-12-28 03:23:34,265 INFO L854 garLoopResultBuilder]: At program point L9338-2(lines 9338 9344) the Hoare annotation is: false [2021-12-28 03:23:34,266 INFO L854 garLoopResultBuilder]: At program point L6795(lines 6793 6798) the Hoare annotation is: false [2021-12-28 03:23:34,266 INFO L861 garLoopResultBuilder]: At program point L9347(line 9347) the Hoare annotation is: true [2021-12-28 03:23:34,266 INFO L858 garLoopResultBuilder]: For program point L9343-2(line 9343) no Hoare annotation was computed. [2021-12-28 03:23:34,266 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-28 03:23:34,266 INFO L854 garLoopResultBuilder]: At program point L9339(line 9339) the Hoare annotation is: false [2021-12-28 03:23:34,266 INFO L858 garLoopResultBuilder]: For program point L9339-1(line 9339) no Hoare annotation was computed. [2021-12-28 03:23:34,266 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-28 03:23:34,267 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-28 03:23:34,267 INFO L854 garLoopResultBuilder]: At program point L9343(line 9343) the Hoare annotation is: false [2021-12-28 03:23:34,267 INFO L854 garLoopResultBuilder]: At program point L9343-1(line 9343) the Hoare annotation is: false [2021-12-28 03:23:34,267 INFO L854 garLoopResultBuilder]: At program point L9335(line 9335) the Hoare annotation is: false [2021-12-28 03:23:34,267 INFO L858 garLoopResultBuilder]: For program point L9335-1(line 9335) no Hoare annotation was computed. [2021-12-28 03:23:34,267 INFO L854 garLoopResultBuilder]: At program point L7110(line 7110) the Hoare annotation is: false [2021-12-28 03:23:34,268 INFO L854 garLoopResultBuilder]: At program point L7106(line 7106) the Hoare annotation is: false [2021-12-28 03:23:34,268 INFO L858 garLoopResultBuilder]: For program point L7110-1(line 7110) no Hoare annotation was computed. [2021-12-28 03:23:34,268 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-28 03:23:34,268 INFO L854 garLoopResultBuilder]: At program point L9340(line 9340) the Hoare annotation is: false [2021-12-28 03:23:34,268 INFO L858 garLoopResultBuilder]: For program point L9340-1(line 9340) no Hoare annotation was computed. [2021-12-28 03:23:34,268 INFO L858 garLoopResultBuilder]: For program point L7106-1(line 7106) no Hoare annotation was computed. [2021-12-28 03:23:34,268 INFO L858 garLoopResultBuilder]: For program point L9332(line 9332) no Hoare annotation was computed. [2021-12-28 03:23:34,268 INFO L854 garLoopResultBuilder]: At program point L9332-2(line 9332) the Hoare annotation is: false [2021-12-28 03:23:34,269 INFO L858 garLoopResultBuilder]: For program point L6801-1(line 6801) no Hoare annotation was computed. [2021-12-28 03:23:34,269 INFO L854 garLoopResultBuilder]: At program point L6801(line 6801) the Hoare annotation is: (and (= 195 |~#s_can_fail_allocator_static~0.base|) (= (+ |ULTIMATE.start_ensure_string_is_allocated_bounded_length_~max_size#1| (- 18446744073710786165)) 0)) [2021-12-28 03:23:34,269 INFO L858 garLoopResultBuilder]: For program point L9332-3(line 9332) no Hoare annotation was computed. [2021-12-28 03:23:34,269 INFO L858 garLoopResultBuilder]: For program point L9332-4(line 9332) no Hoare annotation was computed. [2021-12-28 03:23:34,269 INFO L858 garLoopResultBuilder]: For program point L7107-1(lines 7107 7109) no Hoare annotation was computed. [2021-12-28 03:23:34,269 INFO L854 garLoopResultBuilder]: At program point L7107(lines 7107 7109) the Hoare annotation is: false [2021-12-28 03:23:34,269 INFO L854 garLoopResultBuilder]: At program point L9341(line 9341) the Hoare annotation is: false [2021-12-28 03:23:34,269 INFO L858 garLoopResultBuilder]: For program point L9341-1(line 9341) no Hoare annotation was computed. [2021-12-28 03:23:34,270 INFO L854 garLoopResultBuilder]: At program point L6810(line 6810) the Hoare annotation is: false [2021-12-28 03:23:34,270 INFO L854 garLoopResultBuilder]: At program point L9345(line 9345) the Hoare annotation is: false [2021-12-28 03:23:34,270 INFO L858 garLoopResultBuilder]: For program point L7099(lines 7099 7112) no Hoare annotation was computed. [2021-12-28 03:23:34,270 INFO L858 garLoopResultBuilder]: For program point L9345-1(line 9345) no Hoare annotation was computed. [2021-12-28 03:23:34,270 INFO L858 garLoopResultBuilder]: For program point L6810-3(line 6810) no Hoare annotation was computed. [2021-12-28 03:23:34,270 INFO L854 garLoopResultBuilder]: At program point L6810-2(line 6810) the Hoare annotation is: false [2021-12-28 03:23:34,270 INFO L858 garLoopResultBuilder]: For program point L6810-1(lines 6810 6811) no Hoare annotation was computed. [2021-12-28 03:23:34,270 INFO L854 garLoopResultBuilder]: At program point L6802(line 6802) the Hoare annotation is: (and (= 195 |~#s_can_fail_allocator_static~0.base|) (= (+ |ULTIMATE.start_ensure_string_is_allocated_bounded_length_~max_size#1| (- 18446744073710786165)) 0)) [2021-12-28 03:23:34,270 INFO L858 garLoopResultBuilder]: For program point L6810-5(lines 6810 6811) no Hoare annotation was computed. [2021-12-28 03:23:34,271 INFO L858 garLoopResultBuilder]: For program point L6802-1(line 6802) no Hoare annotation was computed. [2021-12-28 03:23:34,271 INFO L858 garLoopResultBuilder]: For program point L9329(lines 9329 9346) no Hoare annotation was computed. [2021-12-28 03:23:34,271 INFO L858 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-12-28 03:23:34,271 INFO L861 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 222 224) the Hoare annotation is: true [2021-12-28 03:23:34,271 INFO L858 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-12-28 03:23:34,272 INFO L858 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2021-12-28 03:23:34,272 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2021-12-28 03:23:34,272 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-12-28 03:23:34,274 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-12-28 03:23:34,275 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-28 03:23:34,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.12 03:23:34 BoogieIcfgContainer [2021-12-28 03:23:34,283 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-28 03:23:34,284 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-28 03:23:34,284 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-28 03:23:34,284 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-28 03:23:34,284 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:23:20" (3/4) ... [2021-12-28 03:23:34,287 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-28 03:23:34,307 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_malloc [2021-12-28 03:23:34,308 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2021-12-28 03:23:34,308 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_mem_acquire [2021-12-28 03:23:34,308 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_new_from_array [2021-12-28 03:23:34,308 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2021-12-28 03:23:34,308 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memcpy [2021-12-28 03:23:34,308 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2021-12-28 03:23:34,308 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_raise_error [2021-12-28 03:23:34,308 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2021-12-28 03:23:34,309 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_is_valid [2021-12-28 03:23:34,309 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_allocator_is_valid [2021-12-28 03:23:34,309 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_add_size_checked [2021-12-28 03:23:34,309 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2021-12-28 03:23:34,309 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-12-28 03:23:34,309 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __CPROVER_overflow_plus [2021-12-28 03:23:34,309 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_new_from_string [2021-12-28 03:23:34,322 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 154 nodes and edges [2021-12-28 03:23:34,324 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 68 nodes and edges [2021-12-28 03:23:34,325 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2021-12-28 03:23:34,327 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-12-28 03:23:34,332 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-12-28 03:23:34,333 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-12-28 03:23:34,334 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-28 03:23:34,334 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-28 03:23:35,169 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-28 03:23:35,170 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-28 03:23:35,171 INFO L158 Benchmark]: Toolchain (without parser) took 18728.30ms. Allocated memory was 50.3MB in the beginning and 469.8MB in the end (delta: 419.4MB). Free memory was 27.4MB in the beginning and 329.7MB in the end (delta: -302.2MB). Peak memory consumption was 321.0MB. Max. memory is 16.1GB. [2021-12-28 03:23:35,171 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 50.3MB. Free memory was 32.9MB in the beginning and 32.9MB in the end (delta: 31.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 03:23:35,171 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1969.72ms. Allocated memory was 50.3MB in the beginning and 94.4MB in the end (delta: 44.0MB). Free memory was 27.2MB in the beginning and 33.6MB in the end (delta: -6.4MB). Peak memory consumption was 39.2MB. Max. memory is 16.1GB. [2021-12-28 03:23:35,171 INFO L158 Benchmark]: Boogie Procedure Inliner took 145.59ms. Allocated memory is still 94.4MB. Free memory was 33.6MB in the beginning and 37.5MB in the end (delta: -3.9MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2021-12-28 03:23:35,172 INFO L158 Benchmark]: Boogie Preprocessor took 99.70ms. Allocated memory is still 94.4MB. Free memory was 37.5MB in the beginning and 30.1MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-28 03:23:35,172 INFO L158 Benchmark]: RCFGBuilder took 1371.33ms. Allocated memory was 94.4MB in the beginning and 167.8MB in the end (delta: 73.4MB). Free memory was 30.1MB in the beginning and 56.3MB in the end (delta: -26.2MB). Peak memory consumption was 57.9MB. Max. memory is 16.1GB. [2021-12-28 03:23:35,172 INFO L158 Benchmark]: TraceAbstraction took 14248.71ms. Allocated memory was 167.8MB in the beginning and 390.1MB in the end (delta: 222.3MB). Free memory was 56.3MB in the beginning and 296.3MB in the end (delta: -240.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 03:23:35,172 INFO L158 Benchmark]: Witness Printer took 886.51ms. Allocated memory was 390.1MB in the beginning and 469.8MB in the end (delta: 79.7MB). Free memory was 296.3MB in the beginning and 329.7MB in the end (delta: -33.4MB). Peak memory consumption was 249.8MB. Max. memory is 16.1GB. [2021-12-28 03:23:35,174 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 50.3MB. Free memory was 32.9MB in the beginning and 32.9MB in the end (delta: 31.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1969.72ms. Allocated memory was 50.3MB in the beginning and 94.4MB in the end (delta: 44.0MB). Free memory was 27.2MB in the beginning and 33.6MB in the end (delta: -6.4MB). Peak memory consumption was 39.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 145.59ms. Allocated memory is still 94.4MB. Free memory was 33.6MB in the beginning and 37.5MB in the end (delta: -3.9MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 99.70ms. Allocated memory is still 94.4MB. Free memory was 37.5MB in the beginning and 30.1MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1371.33ms. Allocated memory was 94.4MB in the beginning and 167.8MB in the end (delta: 73.4MB). Free memory was 30.1MB in the beginning and 56.3MB in the end (delta: -26.2MB). Peak memory consumption was 57.9MB. Max. memory is 16.1GB. * TraceAbstraction took 14248.71ms. Allocated memory was 167.8MB in the beginning and 390.1MB in the end (delta: 222.3MB). Free memory was 56.3MB in the beginning and 296.3MB in the end (delta: -240.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 886.51ms. Allocated memory was 390.1MB in the beginning and 469.8MB in the end (delta: 79.7MB). Free memory was 296.3MB in the beginning and 329.7MB in the end (delta: -33.4MB). Peak memory consumption was 249.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 17 procedures, 153 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 14.2s, OverallIterations: 5, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 646 SdHoareTripleChecker+Valid, 3.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 580 mSDsluCounter, 2978 SdHoareTripleChecker+Invalid, 3.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 56 IncrementalHoareTripleChecker+Unchecked, 2273 mSDsCounter, 412 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3256 IncrementalHoareTripleChecker+Invalid, 3724 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 412 mSolverCounterUnsat, 705 mSDtfsCounter, 3256 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 336 GetRequests, 229 SyntacticMatches, 1 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 673 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=170occurred in iteration=3, InterpolantAutomatonStates: 58, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 166 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 62 LocationsWithAnnotation, 191 PreInvPairs, 193 NumberOfFragments, 148 HoareAnnotationTreeSize, 191 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 62 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 8.0s InterpolantComputationTime, 560 NumberOfCodeBlocks, 560 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 554 ConstructedInterpolants, 7 QuantifiedInterpolants, 3542 SizeOfPredicates, 32 NumberOfNonLiveVariables, 2690 ConjunctsInSsa, 104 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 233/254 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6793]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 8985]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 9347]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2541]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6806]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6800]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-12-28 03:23:35,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE