./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c 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_hash_callback_string_eq_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 617e08addfe2d13b261907959d3757079a581721356bb3e7b4090decaff2b168 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 11:05:22,845 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 11:05:22,847 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 11:05:22,886 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 11:05:22,886 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 11:05:22,887 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 11:05:22,891 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 11:05:22,893 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 11:05:22,895 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 11:05:22,899 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 11:05:22,899 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 11:05:22,901 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 11:05:22,902 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 11:05:22,903 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 11:05:22,905 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 11:05:22,906 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 11:05:22,907 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 11:05:22,908 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 11:05:22,911 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 11:05:22,918 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 11:05:22,919 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 11:05:22,920 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 11:05:22,921 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 11:05:22,922 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 11:05:22,923 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 11:05:22,929 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 11:05:22,930 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 11:05:22,930 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 11:05:22,931 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 11:05:22,932 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 11:05:22,933 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 11:05:22,933 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 11:05:22,934 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 11:05:22,935 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 11:05:22,935 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 11:05:22,937 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 11:05:22,937 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 11:05:22,937 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 11:05:22,938 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 11:05:22,938 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 11:05:22,939 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 11:05:22,940 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 11:05:22,941 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 11:05:22,970 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 11:05:22,971 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 11:05:22,971 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 11:05:22,971 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 11:05:22,972 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 11:05:22,972 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 11:05:22,972 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 11:05:22,972 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 11:05:22,973 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 11:05:22,973 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 11:05:22,974 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 11:05:22,974 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 11:05:22,974 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 11:05:22,974 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 11:05:22,974 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 11:05:22,975 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 11:05:22,975 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 11:05:22,979 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 11:05:22,979 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 11:05:22,979 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 11:05:22,979 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 11:05:22,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 11:05:22,980 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 11:05:22,980 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 11:05:22,980 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 11:05:22,980 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 11:05:22,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 11:05:22,981 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 11:05:22,981 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 11:05:22,981 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 11:05:22,981 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 617e08addfe2d13b261907959d3757079a581721356bb3e7b4090decaff2b168 [2022-07-12 11:05:23,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 11:05:23,190 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 11:05:23,192 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 11:05:23,193 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 11:05:23,194 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 11:05:23,195 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i [2022-07-12 11:05:23,244 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b200b29b/faac7dc9706a4cf88ddc71410ea7f78c/FLAGf35c2230b [2022-07-12 11:05:23,927 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 11:05:23,929 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i [2022-07-12 11:05:23,966 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b200b29b/faac7dc9706a4cf88ddc71410ea7f78c/FLAGf35c2230b [2022-07-12 11:05:24,270 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b200b29b/faac7dc9706a4cf88ddc71410ea7f78c [2022-07-12 11:05:24,271 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 11:05:24,272 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 11:05:24,273 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 11:05:24,274 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 11:05:24,277 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 11:05:24,277 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 11:05:24" (1/1) ... [2022-07-12 11:05:24,278 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22cb14a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:05:24, skipping insertion in model container [2022-07-12 11:05:24,279 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 11:05:24" (1/1) ... [2022-07-12 11:05:24,284 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 11:05:24,378 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 11:05:24,610 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_hash_callback_string_eq_harness.i[4501,4514] [2022-07-12 11:05:24,617 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_hash_callback_string_eq_harness.i[4561,4574] [2022-07-12 11:05:25,314 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:25,315 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:25,325 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:25,326 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:25,327 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:25,337 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:25,338 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:25,339 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:25,340 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:25,625 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-12 11:05:25,626 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-12 11:05:25,627 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-12 11:05:25,628 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-12 11:05:25,629 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-12 11:05:25,629 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-12 11:05:25,630 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-12 11:05:25,634 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-12 11:05:25,635 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-12 11:05:25,635 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-12 11:05:25,797 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-12 11:05:25,863 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:25,863 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:26,118 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:26,119 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:26,143 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:26,145 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:26,150 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:26,150 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:26,167 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:26,171 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:26,172 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:26,172 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:26,173 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:26,174 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:26,174 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:26,228 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 11:05:26,271 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 11:05:26,292 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_hash_callback_string_eq_harness.i[4501,4514] [2022-07-12 11:05:26,293 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_hash_callback_string_eq_harness.i[4561,4574] [2022-07-12 11:05:26,323 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:26,326 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:26,326 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:26,326 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:26,327 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:26,331 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:26,332 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:26,332 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:26,332 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:26,392 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-12 11:05:26,393 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-12 11:05:26,393 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-12 11:05:26,394 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-12 11:05:26,395 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-12 11:05:26,395 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-12 11:05:26,395 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-12 11:05:26,396 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-12 11:05:26,396 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-12 11:05:26,396 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-12 11:05:26,410 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-12 11:05:26,452 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:26,454 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:26,507 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:26,508 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:26,518 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:26,519 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:26,522 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:26,522 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:26,529 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:26,529 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:26,530 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:26,530 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:26,531 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:26,531 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:26,531 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:05:26,586 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 11:05:26,790 INFO L208 MainTranslator]: Completed translation [2022-07-12 11:05:26,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:05:26 WrapperNode [2022-07-12 11:05:26,791 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 11:05:26,792 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 11:05:26,792 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 11:05:26,792 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 11:05:26,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:05:26" (1/1) ... [2022-07-12 11:05:26,986 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:05:26" (1/1) ... [2022-07-12 11:05:27,054 INFO L137 Inliner]: procedures = 768, calls = 3257, calls flagged for inlining = 77, calls inlined = 7, statements flattened = 399 [2022-07-12 11:05:27,055 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 11:05:27,056 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 11:05:27,056 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 11:05:27,056 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 11:05:27,064 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:05:26" (1/1) ... [2022-07-12 11:05:27,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:05:26" (1/1) ... [2022-07-12 11:05:27,076 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:05:26" (1/1) ... [2022-07-12 11:05:27,076 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:05:26" (1/1) ... [2022-07-12 11:05:27,114 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:05:26" (1/1) ... [2022-07-12 11:05:27,119 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:05:26" (1/1) ... [2022-07-12 11:05:27,137 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:05:26" (1/1) ... [2022-07-12 11:05:27,144 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 11:05:27,149 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 11:05:27,149 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 11:05:27,150 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 11:05:27,151 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:05:26" (1/1) ... [2022-07-12 11:05:27,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 11:05:27,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:05:27,184 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) [2022-07-12 11:05:27,208 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 [2022-07-12 11:05:27,222 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2022-07-12 11:05:27,222 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2022-07-12 11:05:27,222 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2022-07-12 11:05:27,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2022-07-12 11:05:27,223 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-07-12 11:05:27,223 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-07-12 11:05:27,223 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-07-12 11:05:27,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 11:05:27,223 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-12 11:05:27,224 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-12 11:05:27,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 11:05:27,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 11:05:27,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 11:05:27,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 11:05:27,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 11:05:27,225 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-07-12 11:05:27,226 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-07-12 11:05:27,226 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 11:05:27,226 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 11:05:27,226 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2022-07-12 11:05:27,226 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2022-07-12 11:05:27,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 11:05:27,227 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-07-12 11:05:27,227 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-07-12 11:05:27,227 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-07-12 11:05:27,227 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-07-12 11:05:27,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 11:05:27,227 INFO L130 BoogieDeclarations]: Found specification of procedure aws_c_string_is_valid [2022-07-12 11:05:27,228 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_c_string_is_valid [2022-07-12 11:05:27,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 11:05:27,515 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 11:05:27,517 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 11:05:27,882 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !true; [2022-07-12 11:05:27,893 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 11:05:27,900 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 11:05:27,900 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-12 11:05:27,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 11:05:27 BoogieIcfgContainer [2022-07-12 11:05:27,902 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 11:05:27,904 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 11:05:27,904 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 11:05:27,906 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 11:05:27,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 11:05:24" (1/3) ... [2022-07-12 11:05:27,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ea3d7bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 11:05:27, skipping insertion in model container [2022-07-12 11:05:27,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:05:26" (2/3) ... [2022-07-12 11:05:27,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ea3d7bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 11:05:27, skipping insertion in model container [2022-07-12 11:05:27,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 11:05:27" (3/3) ... [2022-07-12 11:05:27,909 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_callback_string_eq_harness.i [2022-07-12 11:05:27,921 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 11:05:27,921 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 11:05:27,961 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 11:05:27,976 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1b57239d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3d5e3f58 [2022-07-12 11:05:27,976 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 11:05:27,980 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 71 states have (on average 1.2253521126760563) internal successors, (87), 71 states have internal predecessors, (87), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2022-07-12 11:05:27,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-12 11:05:27,993 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:05:27,994 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:05:27,995 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:05:27,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:05:27,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1707101443, now seen corresponding path program 1 times [2022-07-12 11:05:28,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:05:28,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532623688] [2022-07-12 11:05:28,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:05:28,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:05:28,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:28,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:05:28,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:28,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 11:05:28,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:28,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 11:05:28,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:28,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 11:05:28,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:28,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 11:05:28,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:28,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 11:05:28,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:28,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 11:05:28,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:28,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-12 11:05:28,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:28,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 11:05:28,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:28,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 11:05:28,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:28,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-12 11:05:28,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:28,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-12 11:05:28,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:28,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-12 11:05:28,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:28,613 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-07-12 11:05:28,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:05:28,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532623688] [2022-07-12 11:05:28,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532623688] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:05:28,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:05:28,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 11:05:28,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078630073] [2022-07-12 11:05:28,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:05:28,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 11:05:28,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:05:28,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 11:05:28,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-12 11:05:28,654 INFO L87 Difference]: Start difference. First operand has 110 states, 71 states have (on average 1.2253521126760563) internal successors, (87), 71 states have internal predecessors, (87), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) 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, (14), 4 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 11:05:28,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:05:28,884 INFO L93 Difference]: Finished difference Result 217 states and 299 transitions. [2022-07-12 11:05:28,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 11:05:28,886 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, (14), 4 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 93 [2022-07-12 11:05:28,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:05:28,893 INFO L225 Difference]: With dead ends: 217 [2022-07-12 11:05:28,894 INFO L226 Difference]: Without dead ends: 104 [2022-07-12 11:05:28,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-12 11:05:28,899 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 68 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 11:05:28,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 182 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 11:05:28,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-07-12 11:05:28,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2022-07-12 11:05:28,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 65 states have (on average 1.1846153846153846) internal successors, (77), 66 states have internal predecessors, (77), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-07-12 11:05:28,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 132 transitions. [2022-07-12 11:05:28,938 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 132 transitions. Word has length 93 [2022-07-12 11:05:28,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:05:28,939 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 132 transitions. [2022-07-12 11:05:28,940 INFO L496 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, (14), 4 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 11:05:28,940 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 132 transitions. [2022-07-12 11:05:28,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-12 11:05:28,944 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:05:28,944 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:05:28,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 11:05:28,945 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:05:28,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:05:28,945 INFO L85 PathProgramCache]: Analyzing trace with hash 566240687, now seen corresponding path program 1 times [2022-07-12 11:05:28,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:05:28,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556484160] [2022-07-12 11:05:28,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:05:28,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:05:29,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:29,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:05:29,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:29,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 11:05:29,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:29,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 11:05:29,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:29,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 11:05:29,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:29,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 11:05:29,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:29,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 11:05:29,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:29,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 11:05:29,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:29,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-12 11:05:29,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:29,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 11:05:29,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:29,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 11:05:29,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:29,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-12 11:05:29,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:29,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-12 11:05:29,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:29,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-12 11:05:29,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:29,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 11:05:29,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:29,881 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-07-12 11:05:29,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:05:29,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556484160] [2022-07-12 11:05:29,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556484160] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 11:05:29,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [586644670] [2022-07-12 11:05:29,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:05:29,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:05:29,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:05:29,887 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) [2022-07-12 11:05:29,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-12 11:05:30,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:30,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 907 conjuncts, 27 conjunts are in the unsatisfiable core [2022-07-12 11:05:30,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:05:30,358 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-07-12 11:05:30,358 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:05:30,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [586644670] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:05:30,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 11:05:30,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [19] total 24 [2022-07-12 11:05:30,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864674187] [2022-07-12 11:05:30,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:05:30,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-12 11:05:30,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:05:30,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-12 11:05:30,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=502, Unknown=0, NotChecked=0, Total=552 [2022-07-12 11:05:30,362 INFO L87 Difference]: Start difference. First operand 104 states and 132 transitions. Second operand has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 11 states have internal predecessors, (47), 6 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 8 states have call predecessors, (14), 6 states have call successors, (14) [2022-07-12 11:05:30,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:05:30,682 INFO L93 Difference]: Finished difference Result 192 states and 252 transitions. [2022-07-12 11:05:30,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 11:05:30,683 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 11 states have internal predecessors, (47), 6 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 8 states have call predecessors, (14), 6 states have call successors, (14) Word has length 96 [2022-07-12 11:05:30,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:05:30,686 INFO L225 Difference]: With dead ends: 192 [2022-07-12 11:05:30,686 INFO L226 Difference]: Without dead ends: 144 [2022-07-12 11:05:30,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=87, Invalid=843, Unknown=0, NotChecked=0, Total=930 [2022-07-12 11:05:30,688 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 113 mSDsluCounter, 1316 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 1449 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 11:05:30,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 1449 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 11:05:30,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2022-07-12 11:05:30,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 117. [2022-07-12 11:05:30,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 72 states have (on average 1.1805555555555556) internal successors, (85), 73 states have internal predecessors, (85), 34 states have call successors, (34), 10 states have call predecessors, (34), 10 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2022-07-12 11:05:30,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 152 transitions. [2022-07-12 11:05:30,707 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 152 transitions. Word has length 96 [2022-07-12 11:05:30,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:05:30,708 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 152 transitions. [2022-07-12 11:05:30,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 11 states have internal predecessors, (47), 6 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 8 states have call predecessors, (14), 6 states have call successors, (14) [2022-07-12 11:05:30,708 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 152 transitions. [2022-07-12 11:05:30,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-07-12 11:05:30,711 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:05:30,711 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 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] [2022-07-12 11:05:30,743 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-12 11:05:30,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:05:30,940 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:05:30,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:05:30,940 INFO L85 PathProgramCache]: Analyzing trace with hash 18133626, now seen corresponding path program 1 times [2022-07-12 11:05:30,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:05:30,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049039610] [2022-07-12 11:05:30,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:05:30,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:05:31,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:31,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:05:31,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:31,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 11:05:31,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:31,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 11:05:31,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:31,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 11:05:31,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:31,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 11:05:31,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:31,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 11:05:31,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:31,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 11:05:31,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:31,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-12 11:05:31,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:31,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 11:05:31,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:31,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 11:05:31,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:31,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-12 11:05:31,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:31,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-12 11:05:31,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:31,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-12 11:05:31,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:31,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-12 11:05:31,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:31,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-12 11:05:31,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:31,552 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-07-12 11:05:31,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:05:31,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049039610] [2022-07-12 11:05:31,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049039610] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 11:05:31,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [920237802] [2022-07-12 11:05:31,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:05:31,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:05:31,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:05:31,556 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:05:31,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-12 11:05:31,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:31,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 935 conjuncts, 29 conjunts are in the unsatisfiable core [2022-07-12 11:05:31,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:05:32,066 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-07-12 11:05:32,066 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:05:32,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [920237802] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:05:32,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 11:05:32,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [17] total 26 [2022-07-12 11:05:32,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791166936] [2022-07-12 11:05:32,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:05:32,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-12 11:05:32,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:05:32,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-12 11:05:32,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=595, Unknown=0, NotChecked=0, Total=650 [2022-07-12 11:05:32,071 INFO L87 Difference]: Start difference. First operand 117 states and 152 transitions. Second operand has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 11 states have internal predecessors, (45), 6 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 8 states have call predecessors, (15), 6 states have call successors, (15) [2022-07-12 11:05:32,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:05:32,395 INFO L93 Difference]: Finished difference Result 209 states and 275 transitions. [2022-07-12 11:05:32,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-12 11:05:32,395 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 11 states have internal predecessors, (45), 6 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 8 states have call predecessors, (15), 6 states have call successors, (15) Word has length 105 [2022-07-12 11:05:32,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:05:32,401 INFO L225 Difference]: With dead ends: 209 [2022-07-12 11:05:32,401 INFO L226 Difference]: Without dead ends: 174 [2022-07-12 11:05:32,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=87, Invalid=905, Unknown=0, NotChecked=0, Total=992 [2022-07-12 11:05:32,406 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 151 mSDsluCounter, 1394 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 1538 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 11:05:32,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 1538 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 11:05:32,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-07-12 11:05:32,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 125. [2022-07-12 11:05:32,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 77 states have (on average 1.1688311688311688) internal successors, (90), 78 states have internal predecessors, (90), 37 states have call successors, (37), 10 states have call predecessors, (37), 10 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2022-07-12 11:05:32,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 163 transitions. [2022-07-12 11:05:32,441 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 163 transitions. Word has length 105 [2022-07-12 11:05:32,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:05:32,443 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 163 transitions. [2022-07-12 11:05:32,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 11 states have internal predecessors, (45), 6 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 8 states have call predecessors, (15), 6 states have call successors, (15) [2022-07-12 11:05:32,443 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 163 transitions. [2022-07-12 11:05:32,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-07-12 11:05:32,451 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:05:32,451 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 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] [2022-07-12 11:05:32,479 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-12 11:05:32,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-07-12 11:05:32,668 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:05:32,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:05:32,669 INFO L85 PathProgramCache]: Analyzing trace with hash 864229612, now seen corresponding path program 1 times [2022-07-12 11:05:32,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:05:32,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917619249] [2022-07-12 11:05:32,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:05:32,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:05:32,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:32,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:05:32,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:32,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 11:05:32,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:32,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 11:05:32,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:32,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 11:05:32,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:32,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 11:05:32,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:32,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 11:05:32,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:32,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 11:05:32,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:32,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-12 11:05:32,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:32,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 11:05:32,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:32,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 11:05:32,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:32,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-12 11:05:32,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:32,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-12 11:05:32,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:32,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-12 11:05:32,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:32,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-12 11:05:32,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:32,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 11:05:32,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:32,964 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-07-12 11:05:32,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:05:32,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917619249] [2022-07-12 11:05:32,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917619249] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:05:32,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:05:32,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 11:05:32,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609881218] [2022-07-12 11:05:32,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:05:32,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 11:05:32,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:05:32,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 11:05:32,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-12 11:05:32,968 INFO L87 Difference]: Start difference. First operand 125 states and 163 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 4 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2022-07-12 11:05:33,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:05:33,387 INFO L93 Difference]: Finished difference Result 213 states and 279 transitions. [2022-07-12 11:05:33,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 11:05:33,388 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 4 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 106 [2022-07-12 11:05:33,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:05:33,390 INFO L225 Difference]: With dead ends: 213 [2022-07-12 11:05:33,390 INFO L226 Difference]: Without dead ends: 160 [2022-07-12 11:05:33,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-07-12 11:05:33,391 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 82 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 11:05:33,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 400 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 11:05:33,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-07-12 11:05:33,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 122. [2022-07-12 11:05:33,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 75 states have (on average 1.16) internal successors, (87), 76 states have internal predecessors, (87), 36 states have call successors, (36), 10 states have call predecessors, (36), 10 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2022-07-12 11:05:33,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 158 transitions. [2022-07-12 11:05:33,402 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 158 transitions. Word has length 106 [2022-07-12 11:05:33,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:05:33,403 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 158 transitions. [2022-07-12 11:05:33,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 4 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2022-07-12 11:05:33,403 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 158 transitions. [2022-07-12 11:05:33,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-07-12 11:05:33,405 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:05:33,405 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:05:33,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 11:05:33,406 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:05:33,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:05:33,406 INFO L85 PathProgramCache]: Analyzing trace with hash -704073469, now seen corresponding path program 1 times [2022-07-12 11:05:33,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:05:33,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815033997] [2022-07-12 11:05:33,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:05:33,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:05:33,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:33,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:05:33,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:33,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 11:05:33,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:33,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 11:05:33,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:33,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 11:05:33,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:33,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 11:05:33,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:33,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 11:05:33,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:33,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 11:05:33,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:33,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 11:05:33,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:33,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 11:05:33,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:33,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 11:05:33,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:33,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 11:05:33,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:33,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 11:05:33,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:33,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 11:05:33,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:33,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 11:05:33,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:33,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-12 11:05:33,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:33,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-12 11:05:33,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:33,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 11:05:33,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:33,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-12 11:05:33,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:33,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-12 11:05:33,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:33,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 11:05:33,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:33,970 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 28 proven. 24 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2022-07-12 11:05:33,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:05:33,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815033997] [2022-07-12 11:05:33,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815033997] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 11:05:33,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138331351] [2022-07-12 11:05:33,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:05:33,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:05:33,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:05:33,982 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:05:34,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-12 11:05:34,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:05:34,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 1054 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-12 11:05:34,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:05:34,443 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 48 proven. 9 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-07-12 11:05:34,444 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 11:05:34,591 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2022-07-12 11:05:34,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138331351] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 11:05:34,592 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-12 11:05:34,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 11, 11] total 27 [2022-07-12 11:05:34,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911152268] [2022-07-12 11:05:34,593 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-12 11:05:34,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-07-12 11:05:34,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:05:34,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-07-12 11:05:34,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2022-07-12 11:05:34,598 INFO L87 Difference]: Start difference. First operand 122 states and 158 transitions. Second operand has 27 states, 25 states have (on average 3.28) internal successors, (82), 20 states have internal predecessors, (82), 11 states have call successors, (34), 4 states have call predecessors, (34), 7 states have return successors, (33), 14 states have call predecessors, (33), 11 states have call successors, (33) [2022-07-12 11:05:35,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:05:35,190 INFO L93 Difference]: Finished difference Result 155 states and 192 transitions. [2022-07-12 11:05:35,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 11:05:35,193 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 3.28) internal successors, (82), 20 states have internal predecessors, (82), 11 states have call successors, (34), 4 states have call predecessors, (34), 7 states have return successors, (33), 14 states have call predecessors, (33), 11 states have call successors, (33) Word has length 130 [2022-07-12 11:05:35,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:05:35,193 INFO L225 Difference]: With dead ends: 155 [2022-07-12 11:05:35,193 INFO L226 Difference]: Without dead ends: 0 [2022-07-12 11:05:35,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=142, Invalid=1340, Unknown=0, NotChecked=0, Total=1482 [2022-07-12 11:05:35,196 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 58 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 11:05:35,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 273 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 11:05:35,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-12 11:05:35,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-12 11:05:35,197 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) [2022-07-12 11:05:35,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-12 11:05:35,198 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 130 [2022-07-12 11:05:35,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:05:35,198 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-12 11:05:35,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 3.28) internal successors, (82), 20 states have internal predecessors, (82), 11 states have call successors, (34), 4 states have call predecessors, (34), 7 states have return successors, (33), 14 states have call predecessors, (33), 11 states have call successors, (33) [2022-07-12 11:05:35,198 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-12 11:05:35,198 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-12 11:05:35,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-12 11:05:35,230 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-12 11:05:35,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:05:35,419 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-12 11:05:35,560 INFO L895 garLoopResultBuilder]: At program point L6814(line 6814) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= (+ |ensure_string_is_allocated_bounded_length_~max_size#1| (- 96)) 0)) (= |old(#valid)| |#valid|)) [2022-07-12 11:05:35,560 INFO L899 garLoopResultBuilder]: For program point L6815-1(line 6815) no Hoare annotation was computed. [2022-07-12 11:05:35,560 INFO L895 garLoopResultBuilder]: At program point L6815(line 6815) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= (+ |ensure_string_is_allocated_bounded_length_~max_size#1| (- 96)) 0)) (= |old(#valid)| |#valid|)) [2022-07-12 11:05:35,560 INFO L899 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthEXIT(lines 6813 6817) no Hoare annotation was computed. [2022-07-12 11:05:35,560 INFO L899 garLoopResultBuilder]: For program point L6814-1(line 6814) no Hoare annotation was computed. [2022-07-12 11:05:35,560 INFO L895 garLoopResultBuilder]: At program point ensure_string_is_allocated_bounded_lengthENTRY(lines 6813 6817) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|)) [2022-07-12 11:05:35,560 INFO L895 garLoopResultBuilder]: At program point L6828(lines 6819 6829) the Hoare annotation is: (and (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 96)) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_#res#1.base| 0)) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= (+ |ensure_string_is_allocated_bounded_length_~max_size#1| (- 96)) 0))) [2022-07-12 11:05:35,560 INFO L899 garLoopResultBuilder]: For program point L6823-1(lines 6823 6824) no Hoare annotation was computed. [2022-07-12 11:05:35,560 INFO L895 garLoopResultBuilder]: At program point L6823(line 6823) the Hoare annotation is: (and (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 96)) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= (+ |ensure_string_is_allocated_bounded_length_~max_size#1| (- 96)) 0))) [2022-07-12 11:05:35,560 INFO L899 garLoopResultBuilder]: For program point L6823-5(lines 6823 6824) no Hoare annotation was computed. [2022-07-12 11:05:35,561 INFO L899 garLoopResultBuilder]: For program point L6820-1(line 6820) no Hoare annotation was computed. [2022-07-12 11:05:35,561 INFO L895 garLoopResultBuilder]: At program point L6820(line 6820) the Hoare annotation is: (let ((.cse0 (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 96)))) (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= (+ |ensure_string_is_allocated_bounded_length_~max_size#1| (- 96)) 0)) (or .cse0 (<= (* (div (+ 18446744073709551520 |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1|) 18446744073709551616) 18446744073709551616) |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1|)) (or .cse0 (<= |ensure_string_is_allocated_bounded_length_~len~1#1| (+ (* 18446744073709551616 (div |ensure_string_is_allocated_bounded_length_~len~1#1| 18446744073709551616)) 95))) (= |old(#valid)| |#valid|))) [2022-07-12 11:05:35,561 INFO L899 garLoopResultBuilder]: For program point L6823-3(line 6823) no Hoare annotation was computed. [2022-07-12 11:05:35,561 INFO L899 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthFINAL(lines 6813 6817) no Hoare annotation was computed. [2022-07-12 11:05:35,561 INFO L895 garLoopResultBuilder]: At program point L6823-2(line 6823) the Hoare annotation is: (and (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 96)) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= (+ |ensure_string_is_allocated_bounded_length_~max_size#1| (- 96)) 0))) [2022-07-12 11:05:35,561 INFO L899 garLoopResultBuilder]: For program point L6896-1(lines 6896 6898) no Hoare annotation was computed. [2022-07-12 11:05:35,561 INFO L895 garLoopResultBuilder]: At program point L6896(lines 6896 6898) the Hoare annotation is: (and (= |bounded_malloc_#in~size| bounded_malloc_~size) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2022-07-12 11:05:35,561 INFO L895 garLoopResultBuilder]: At program point bounded_mallocENTRY(lines 6895 6900) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2022-07-12 11:05:35,561 INFO L899 garLoopResultBuilder]: For program point bounded_mallocFINAL(lines 6895 6900) no Hoare annotation was computed. [2022-07-12 11:05:35,562 INFO L899 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6895 6900) no Hoare annotation was computed. [2022-07-12 11:05:35,562 INFO L902 garLoopResultBuilder]: At program point aws_array_eqENTRY(lines 7686 7706) the Hoare annotation is: true [2022-07-12 11:05:35,562 INFO L899 garLoopResultBuilder]: For program point L7690(lines 7687 7706) no Hoare annotation was computed. [2022-07-12 11:05:35,562 INFO L899 garLoopResultBuilder]: For program point aws_array_eqEXIT(lines 7686 7706) no Hoare annotation was computed. [2022-07-12 11:05:35,562 INFO L902 garLoopResultBuilder]: At program point L7688-1(line 7688) the Hoare annotation is: true [2022-07-12 11:05:35,562 INFO L902 garLoopResultBuilder]: At program point L7688(line 7688) the Hoare annotation is: true [2022-07-12 11:05:35,562 INFO L899 garLoopResultBuilder]: For program point aws_array_eqFINAL(lines 7686 7706) no Hoare annotation was computed. [2022-07-12 11:05:35,563 INFO L899 garLoopResultBuilder]: For program point L7699(lines 7699 7703) no Hoare annotation was computed. [2022-07-12 11:05:35,563 INFO L899 garLoopResultBuilder]: For program point nondet_boolFINAL(line 261) no Hoare annotation was computed. [2022-07-12 11:05:35,563 INFO L899 garLoopResultBuilder]: For program point nondet_boolEXIT(line 261) no Hoare annotation was computed. [2022-07-12 11:05:35,563 INFO L902 garLoopResultBuilder]: At program point nondet_boolENTRY(line 261) the Hoare annotation is: true [2022-07-12 11:05:35,563 INFO L899 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2022-07-12 11:05:35,563 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 210 212) the Hoare annotation is: true [2022-07-12 11:05:35,563 INFO L899 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2022-07-12 11:05:35,563 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2022-07-12 11:05:35,563 INFO L899 garLoopResultBuilder]: For program point aws_c_string_is_validFINAL(lines 6263 6273) no Hoare annotation was computed. [2022-07-12 11:05:35,563 INFO L902 garLoopResultBuilder]: At program point aws_c_string_is_validENTRY(lines 6263 6273) the Hoare annotation is: true [2022-07-12 11:05:35,563 INFO L899 garLoopResultBuilder]: For program point aws_c_string_is_validEXIT(lines 6263 6273) no Hoare annotation was computed. [2022-07-12 11:05:35,563 INFO L899 garLoopResultBuilder]: For program point can_fail_allocatorFINAL(lines 6902 6904) no Hoare annotation was computed. [2022-07-12 11:05:35,563 INFO L899 garLoopResultBuilder]: For program point can_fail_allocatorEXIT(lines 6902 6904) no Hoare annotation was computed. [2022-07-12 11:05:35,563 INFO L902 garLoopResultBuilder]: At program point can_fail_allocatorENTRY(lines 6902 6904) the Hoare annotation is: true [2022-07-12 11:05:35,564 INFO L902 garLoopResultBuilder]: At program point aws_string_is_validENTRY(lines 6253 6258) the Hoare annotation is: true [2022-07-12 11:05:35,564 INFO L899 garLoopResultBuilder]: For program point L6257-2(line 6257) no Hoare annotation was computed. [2022-07-12 11:05:35,564 INFO L899 garLoopResultBuilder]: For program point L6257-3(line 6257) no Hoare annotation was computed. [2022-07-12 11:05:35,564 INFO L899 garLoopResultBuilder]: For program point L6257(line 6257) no Hoare annotation was computed. [2022-07-12 11:05:35,564 INFO L899 garLoopResultBuilder]: For program point aws_string_is_validFINAL(lines 6253 6258) no Hoare annotation was computed. [2022-07-12 11:05:35,564 INFO L899 garLoopResultBuilder]: For program point L6257-5(line 6257) no Hoare annotation was computed. [2022-07-12 11:05:35,564 INFO L899 garLoopResultBuilder]: For program point aws_string_is_validEXIT(lines 6253 6258) no Hoare annotation was computed. [2022-07-12 11:05:35,564 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2022-07-12 11:05:35,564 INFO L902 garLoopResultBuilder]: At program point nondet_uint64_tENTRY(line 266) the Hoare annotation is: true [2022-07-12 11:05:35,564 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tFINAL(line 266) no Hoare annotation was computed. [2022-07-12 11:05:35,564 INFO L895 garLoopResultBuilder]: At program point L11324(line 11324) the Hoare annotation is: false [2022-07-12 11:05:35,564 INFO L899 garLoopResultBuilder]: For program point L11324-1(line 11324) no Hoare annotation was computed. [2022-07-12 11:05:35,564 INFO L902 garLoopResultBuilder]: At program point L11328(line 11328) the Hoare annotation is: true [2022-07-12 11:05:35,564 INFO L899 garLoopResultBuilder]: For program point L11060(lines 11060 11064) no Hoare annotation was computed. [2022-07-12 11:05:35,565 INFO L899 garLoopResultBuilder]: For program point L7113-1(lines 7112 7125) no Hoare annotation was computed. [2022-07-12 11:05:35,565 INFO L895 garLoopResultBuilder]: At program point L7113(line 7113) the Hoare annotation is: false [2022-07-12 11:05:35,565 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-12 11:05:35,565 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-12 11:05:35,565 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-12 11:05:35,565 INFO L895 garLoopResultBuilder]: At program point L10805-1(line 10805) the Hoare annotation is: false [2022-07-12 11:05:35,565 INFO L895 garLoopResultBuilder]: At program point L10805(line 10805) the Hoare annotation is: false [2022-07-12 11:05:35,565 INFO L899 garLoopResultBuilder]: For program point L11317(lines 11317 11327) no Hoare annotation was computed. [2022-07-12 11:05:35,565 INFO L899 garLoopResultBuilder]: For program point L10805-2(line 10805) no Hoare annotation was computed. [2022-07-12 11:05:35,565 INFO L899 garLoopResultBuilder]: For program point L11065(lines 11065 11073) no Hoare annotation was computed. [2022-07-12 11:05:35,565 INFO L895 garLoopResultBuilder]: At program point L11074(line 11074) the Hoare annotation is: false [2022-07-12 11:05:35,565 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-12 11:05:35,565 INFO L895 garLoopResultBuilder]: At program point L11074-2(lines 11056 11075) the Hoare annotation is: false [2022-07-12 11:05:35,565 INFO L899 garLoopResultBuilder]: For program point L11074-1(line 11074) no Hoare annotation was computed. [2022-07-12 11:05:35,565 INFO L899 garLoopResultBuilder]: For program point L10806-2(line 10806) no Hoare annotation was computed. [2022-07-12 11:05:35,565 INFO L895 garLoopResultBuilder]: At program point L10810-6(line 10810) the Hoare annotation is: false [2022-07-12 11:05:35,566 INFO L899 garLoopResultBuilder]: For program point L11318-1(line 11318) no Hoare annotation was computed. [2022-07-12 11:05:35,566 INFO L895 garLoopResultBuilder]: At program point L10806-1(line 10806) the Hoare annotation is: false [2022-07-12 11:05:35,566 INFO L899 garLoopResultBuilder]: For program point L11058(line 11058) no Hoare annotation was computed. [2022-07-12 11:05:35,566 INFO L899 garLoopResultBuilder]: For program point L10810-7(line 10810) no Hoare annotation was computed. [2022-07-12 11:05:35,566 INFO L899 garLoopResultBuilder]: For program point L10810-2(line 10810) no Hoare annotation was computed. [2022-07-12 11:05:35,566 INFO L899 garLoopResultBuilder]: For program point L7123-1(line 7123) no Hoare annotation was computed. [2022-07-12 11:05:35,566 INFO L899 garLoopResultBuilder]: For program point L10810-1(line 10810) no Hoare annotation was computed. [2022-07-12 11:05:35,566 INFO L895 garLoopResultBuilder]: At program point L7123(line 7123) the Hoare annotation is: false [2022-07-12 11:05:35,566 INFO L902 garLoopResultBuilder]: At program point L11318(line 11318) the Hoare annotation is: true [2022-07-12 11:05:35,566 INFO L895 garLoopResultBuilder]: At program point L10806(line 10806) the Hoare annotation is: false [2022-07-12 11:05:35,566 INFO L899 garLoopResultBuilder]: For program point L10810-4(line 10810) no Hoare annotation was computed. [2022-07-12 11:05:35,566 INFO L895 garLoopResultBuilder]: At program point L10810-3(line 10810) the Hoare annotation is: false [2022-07-12 11:05:35,566 INFO L899 garLoopResultBuilder]: For program point L7119-1(line 7119) no Hoare annotation was computed. [2022-07-12 11:05:35,566 INFO L899 garLoopResultBuilder]: For program point L11058-5(line 11058) no Hoare annotation was computed. [2022-07-12 11:05:35,566 INFO L895 garLoopResultBuilder]: At program point L7119(line 7119) the Hoare annotation is: false [2022-07-12 11:05:35,567 INFO L895 garLoopResultBuilder]: At program point L11058-2(line 11058) the Hoare annotation is: false [2022-07-12 11:05:35,567 INFO L895 garLoopResultBuilder]: At program point L10810-9(line 10810) the Hoare annotation is: false [2022-07-12 11:05:35,567 INFO L895 garLoopResultBuilder]: At program point L11058-4(line 11058) the Hoare annotation is: false [2022-07-12 11:05:35,567 INFO L899 garLoopResultBuilder]: For program point L11058-3(line 11058) no Hoare annotation was computed. [2022-07-12 11:05:35,568 INFO L899 garLoopResultBuilder]: For program point L11323(lines 11323 11326) no Hoare annotation was computed. [2022-07-12 11:05:35,568 INFO L895 garLoopResultBuilder]: At program point L11319-3(line 11319) the Hoare annotation is: false [2022-07-12 11:05:35,568 INFO L899 garLoopResultBuilder]: For program point L11319-5(line 11319) no Hoare annotation was computed. [2022-07-12 11:05:35,569 INFO L899 garLoopResultBuilder]: For program point L11319-4(line 11319) no Hoare annotation was computed. [2022-07-12 11:05:35,569 INFO L899 garLoopResultBuilder]: For program point L11059(line 11059) no Hoare annotation was computed. [2022-07-12 11:05:35,569 INFO L895 garLoopResultBuilder]: At program point L10803(lines 10803 10811) the Hoare annotation is: false [2022-07-12 11:05:35,569 INFO L899 garLoopResultBuilder]: For program point L11319-1(line 11319) no Hoare annotation was computed. [2022-07-12 11:05:35,569 INFO L895 garLoopResultBuilder]: At program point L11319(line 11319) the Hoare annotation is: false [2022-07-12 11:05:35,569 INFO L899 garLoopResultBuilder]: For program point L7120-1(lines 7120 7122) no Hoare annotation was computed. [2022-07-12 11:05:35,569 INFO L895 garLoopResultBuilder]: At program point L7120(lines 7120 7122) the Hoare annotation is: false [2022-07-12 11:05:35,570 INFO L899 garLoopResultBuilder]: For program point L11059-3(line 11059) no Hoare annotation was computed. [2022-07-12 11:05:35,570 INFO L895 garLoopResultBuilder]: At program point L11059-2(line 11059) the Hoare annotation is: false [2022-07-12 11:05:35,570 INFO L899 garLoopResultBuilder]: For program point L11059-5(line 11059) no Hoare annotation was computed. [2022-07-12 11:05:35,570 INFO L895 garLoopResultBuilder]: At program point L11059-4(line 11059) the Hoare annotation is: false [2022-07-12 11:05:35,570 INFO L899 garLoopResultBuilder]: For program point L7112(lines 7112 7125) no Hoare annotation was computed. [2022-07-12 11:05:35,570 INFO L899 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2022-07-12 11:05:35,570 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 222 224) the Hoare annotation is: true [2022-07-12 11:05:35,571 INFO L899 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2022-07-12 11:05:35,571 INFO L899 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2022-07-12 11:05:35,571 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2022-07-12 11:05:35,571 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2022-07-12 11:05:35,574 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-07-12 11:05:35,575 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 11:05:35,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 11:05:35 BoogieIcfgContainer [2022-07-12 11:05:35,586 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 11:05:35,587 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 11:05:35,587 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 11:05:35,587 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 11:05:35,587 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 11:05:27" (3/4) ... [2022-07-12 11:05:35,590 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-12 11:05:35,595 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ensure_string_is_allocated_bounded_length [2022-07-12 11:05:35,595 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2022-07-12 11:05:35,595 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_eq [2022-07-12 11:05:35,595 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2022-07-12 11:05:35,595 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2022-07-12 11:05:35,596 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-07-12 11:05:35,596 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-07-12 11:05:35,596 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_c_string_is_valid [2022-07-12 11:05:35,596 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2022-07-12 11:05:35,596 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_is_valid [2022-07-12 11:05:35,604 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2022-07-12 11:05:35,605 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-07-12 11:05:35,606 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-12 11:05:35,606 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-12 11:05:35,628 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(str == 0) && !(\old(max_size) == 96)) && !(\result == 0)) && (\old(max_size) == max_size || max_size + -96 == 0) [2022-07-12 11:05:35,746 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-12 11:05:35,746 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 11:05:35,747 INFO L158 Benchmark]: Toolchain (without parser) took 11474.12ms. Allocated memory was 107.0MB in the beginning and 255.9MB in the end (delta: 148.9MB). Free memory was 73.2MB in the beginning and 61.8MB in the end (delta: 11.5MB). Peak memory consumption was 158.0MB. Max. memory is 16.1GB. [2022-07-12 11:05:35,747 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 88.1MB. Free memory is still 50.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 11:05:35,747 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2517.59ms. Allocated memory was 107.0MB in the beginning and 174.1MB in the end (delta: 67.1MB). Free memory was 73.2MB in the beginning and 105.5MB in the end (delta: -32.3MB). Peak memory consumption was 89.4MB. Max. memory is 16.1GB. [2022-07-12 11:05:35,747 INFO L158 Benchmark]: Boogie Procedure Inliner took 263.50ms. Allocated memory is still 174.1MB. Free memory was 105.5MB in the beginning and 94.1MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-12 11:05:35,748 INFO L158 Benchmark]: Boogie Preprocessor took 92.39ms. Allocated memory is still 174.1MB. Free memory was 94.1MB in the beginning and 88.7MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-12 11:05:35,748 INFO L158 Benchmark]: RCFGBuilder took 753.09ms. Allocated memory is still 174.1MB. Free memory was 88.7MB in the beginning and 97.6MB in the end (delta: -8.8MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. [2022-07-12 11:05:35,748 INFO L158 Benchmark]: TraceAbstraction took 7682.70ms. Allocated memory was 174.1MB in the beginning and 255.9MB in the end (delta: 81.8MB). Free memory was 97.6MB in the beginning and 81.7MB in the end (delta: 15.9MB). Peak memory consumption was 96.5MB. Max. memory is 16.1GB. [2022-07-12 11:05:35,748 INFO L158 Benchmark]: Witness Printer took 159.45ms. Allocated memory is still 255.9MB. Free memory was 81.7MB in the beginning and 61.8MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-07-12 11:05:35,750 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 88.1MB. Free memory is still 50.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2517.59ms. Allocated memory was 107.0MB in the beginning and 174.1MB in the end (delta: 67.1MB). Free memory was 73.2MB in the beginning and 105.5MB in the end (delta: -32.3MB). Peak memory consumption was 89.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 263.50ms. Allocated memory is still 174.1MB. Free memory was 105.5MB in the beginning and 94.1MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 92.39ms. Allocated memory is still 174.1MB. Free memory was 94.1MB in the beginning and 88.7MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 753.09ms. Allocated memory is still 174.1MB. Free memory was 88.7MB in the beginning and 97.6MB in the end (delta: -8.8MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. * TraceAbstraction took 7682.70ms. Allocated memory was 174.1MB in the beginning and 255.9MB in the end (delta: 81.8MB). Free memory was 97.6MB in the beginning and 81.7MB in the end (delta: 15.9MB). Peak memory consumption was 96.5MB. Max. memory is 16.1GB. * Witness Printer took 159.45ms. Allocated memory is still 255.9MB. Free memory was 81.7MB in the beginning and 61.8MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. 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 11 procedures, 110 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.6s, OverallIterations: 5, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 524 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 472 mSDsluCounter, 3842 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3264 mSDsCounter, 274 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1315 IncrementalHoareTripleChecker+Invalid, 1589 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 274 mSolverCounterUnsat, 578 mSDtfsCounter, 1315 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 695 GetRequests, 591 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred in iteration=3, InterpolantAutomatonStates: 52, 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, 114 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 42 LocationsWithAnnotation, 155 PreInvPairs, 163 NumberOfFragments, 239 HoareAnnotationTreeSize, 155 FomulaSimplifications, 18 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 42 FomulaSimplificationsInter, 104 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 861 NumberOfCodeBlocks, 861 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 982 ConstructedInterpolants, 0 QuantifiedInterpolants, 2090 SizeOfPredicates, 27 NumberOfNonLiveVariables, 2896 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 819/909 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: 6819]: Loop Invariant Derived loop invariant: ((!(str == 0) && !(\old(max_size) == 96)) && !(\result == 0)) && (\old(max_size) == max_size || max_size + -96 == 0) - InvariantResult [Line: 10803]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 11056]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 10810]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 11328]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-07-12 11:05:35,786 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