./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 791161d1 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-?-791161d [2022-07-22 22:22:25,781 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 22:22:25,782 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 22:22:25,827 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 22:22:25,828 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 22:22:25,829 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 22:22:25,830 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 22:22:25,832 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 22:22:25,833 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 22:22:25,837 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 22:22:25,838 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 22:22:25,840 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 22:22:25,840 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 22:22:25,842 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 22:22:25,842 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 22:22:25,845 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 22:22:25,846 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 22:22:25,847 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 22:22:25,848 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 22:22:25,853 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 22:22:25,855 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 22:22:25,856 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 22:22:25,856 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 22:22:25,857 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 22:22:25,858 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 22:22:25,861 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 22:22:25,861 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 22:22:25,861 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 22:22:25,862 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 22:22:25,862 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 22:22:25,863 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 22:22:25,864 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 22:22:25,865 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 22:22:25,865 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 22:22:25,866 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 22:22:25,866 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 22:22:25,867 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 22:22:25,867 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 22:22:25,867 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 22:22:25,867 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 22:22:25,868 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 22:22:25,869 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 22:22:25,870 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-22 22:22:25,891 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 22:22:25,891 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 22:22:25,892 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 22:22:25,892 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 22:22:25,892 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 22:22:25,892 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 22:22:25,893 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 22:22:25,893 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 22:22:25,893 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 22:22:25,894 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 22:22:25,894 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 22:22:25,894 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 22:22:25,894 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 22:22:25,894 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 22:22:25,895 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 22:22:25,895 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 22:22:25,895 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 22:22:25,895 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 22:22:25,895 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 22:22:25,895 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 22:22:25,896 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 22:22:25,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 22:22:25,896 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 22:22:25,897 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 22:22:25,897 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 22:22:25,897 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 22:22:25,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 22:22:25,897 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 22:22:25,897 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 22:22:25,897 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 22:22:25,898 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 617e08addfe2d13b261907959d3757079a581721356bb3e7b4090decaff2b168 [2022-07-22 22:22:26,117 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 22:22:26,137 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 22:22:26,138 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 22:22:26,139 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 22:22:26,140 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 22:22:26,141 INFO L432 ainManager$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 [2022-07-22 22:22:26,188 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d7a5bb88/8df1fbbf341a4d50b804111d24e11e8c/FLAGaf33cf66f [2022-07-22 22:22:26,765 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 22:22:26,766 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i [2022-07-22 22:22:26,791 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d7a5bb88/8df1fbbf341a4d50b804111d24e11e8c/FLAGaf33cf66f [2022-07-22 22:22:27,210 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d7a5bb88/8df1fbbf341a4d50b804111d24e11e8c [2022-07-22 22:22:27,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 22:22:27,212 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 22:22:27,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 22:22:27,213 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 22:22:27,216 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 22:22:27,216 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 10:22:27" (1/1) ... [2022-07-22 22:22:27,217 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@399cd2de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:22:27, skipping insertion in model container [2022-07-22 22:22:27,217 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 10:22:27" (1/1) ... [2022-07-22 22:22:27,221 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 22:22:27,286 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 22:22:27,476 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] [2022-07-22 22:22:27,482 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] [2022-07-22 22:22:28,063 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:28,063 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:28,064 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:28,064 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:28,065 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:28,073 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:28,075 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:28,076 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:28,077 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:28,303 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-22 22:22:28,304 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-22 22:22:28,305 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-22 22:22:28,305 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-22 22:22:28,306 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-22 22:22:28,307 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-22 22:22:28,307 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-22 22:22:28,307 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-22 22:22:28,308 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-22 22:22:28,308 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-22 22:22:28,441 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-22 22:22:28,490 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:28,490 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:28,675 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:28,676 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:28,695 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:28,695 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:28,700 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:28,700 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:28,718 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:28,719 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:28,720 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:28,720 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:28,720 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:28,721 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:28,721 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:28,766 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 22:22:28,800 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 22:22:28,833 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] [2022-07-22 22:22:28,834 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] [2022-07-22 22:22:28,870 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:28,871 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:28,871 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:28,872 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:28,872 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:28,876 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:28,876 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:28,877 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:28,877 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:28,897 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-22 22:22:28,898 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-22 22:22:28,898 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-22 22:22:28,898 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-22 22:22:28,899 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-22 22:22:28,899 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-22 22:22:28,900 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-22 22:22:28,900 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-22 22:22:28,900 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-22 22:22:28,900 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-22 22:22:28,911 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-22 22:22:28,944 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:28,946 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:29,014 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:29,014 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:29,019 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:29,020 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:29,023 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:29,023 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:29,028 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:29,029 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:29,030 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:29,030 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:29,030 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:29,030 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:29,031 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:22:29,057 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 22:22:29,236 INFO L208 MainTranslator]: Completed translation [2022-07-22 22:22:29,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:22:29 WrapperNode [2022-07-22 22:22:29,236 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 22:22:29,237 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 22:22:29,237 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 22:22:29,237 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 22:22:29,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:22:29" (1/1) ... [2022-07-22 22:22:29,339 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:22:29" (1/1) ... [2022-07-22 22:22:29,389 INFO L137 Inliner]: procedures = 768, calls = 3257, calls flagged for inlining = 77, calls inlined = 7, statements flattened = 399 [2022-07-22 22:22:29,391 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 22:22:29,391 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 22:22:29,391 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 22:22:29,391 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 22:22:29,397 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:22:29" (1/1) ... [2022-07-22 22:22:29,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:22:29" (1/1) ... [2022-07-22 22:22:29,404 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:22:29" (1/1) ... [2022-07-22 22:22:29,405 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:22:29" (1/1) ... [2022-07-22 22:22:29,426 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:22:29" (1/1) ... [2022-07-22 22:22:29,444 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:22:29" (1/1) ... [2022-07-22 22:22:29,447 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:22:29" (1/1) ... [2022-07-22 22:22:29,458 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 22:22:29,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 22:22:29,472 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 22:22:29,472 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 22:22:29,473 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:22:29" (1/1) ... [2022-07-22 22:22:29,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 22:22:29,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:22:29,495 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) [2022-07-22 22:22:29,513 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 [2022-07-22 22:22:29,529 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2022-07-22 22:22:29,530 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2022-07-22 22:22:29,530 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2022-07-22 22:22:29,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2022-07-22 22:22:29,530 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-07-22 22:22:29,530 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-07-22 22:22:29,530 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-07-22 22:22:29,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 22:22:29,530 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-22 22:22:29,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-22 22:22:29,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-22 22:22:29,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 22:22:29,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-22 22:22:29,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 22:22:29,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 22:22:29,531 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-07-22 22:22:29,531 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-07-22 22:22:29,531 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-22 22:22:29,532 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-22 22:22:29,532 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2022-07-22 22:22:29,532 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2022-07-22 22:22:29,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-22 22:22:29,532 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-07-22 22:22:29,532 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-07-22 22:22:29,532 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-07-22 22:22:29,533 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-07-22 22:22:29,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 22:22:29,533 INFO L130 BoogieDeclarations]: Found specification of procedure aws_c_string_is_valid [2022-07-22 22:22:29,533 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_c_string_is_valid [2022-07-22 22:22:29,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 22:22:29,684 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 22:22:29,685 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 22:22:30,020 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !true; [2022-07-22 22:22:30,029 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 22:22:30,035 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 22:22:30,036 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-22 22:22:30,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 10:22:30 BoogieIcfgContainer [2022-07-22 22:22:30,037 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 22:22:30,038 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 22:22:30,038 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 22:22:30,041 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 22:22:30,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 10:22:27" (1/3) ... [2022-07-22 22:22:30,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f7adf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 10:22:30, skipping insertion in model container [2022-07-22 22:22:30,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:22:29" (2/3) ... [2022-07-22 22:22:30,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f7adf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 10:22:30, skipping insertion in model container [2022-07-22 22:22:30,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 10:22:30" (3/3) ... [2022-07-22 22:22:30,043 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_callback_string_eq_harness.i [2022-07-22 22:22:30,052 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 22:22:30,052 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 22:22:30,093 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 22:22:30,098 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@24b8d728, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5d797b8f [2022-07-22 22:22:30,098 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 22:22:30,101 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) [2022-07-22 22:22:30,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-22 22:22:30,109 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:22:30,110 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] [2022-07-22 22:22:30,110 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:22:30,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:22:30,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1707101443, now seen corresponding path program 1 times [2022-07-22 22:22:30,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:22:30,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325079528] [2022-07-22 22:22:30,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:22:30,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:22:30,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:30,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:22:30,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:30,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:22:30,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:30,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 22:22:30,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:30,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 22:22:30,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:30,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:22:30,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:30,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 22:22:30,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:30,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-22 22:22:30,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:30,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-22 22:22:30,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:30,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 22:22:30,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:30,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-22 22:22:30,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:30,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-22 22:22:30,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:30,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-22 22:22:30,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:30,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-22 22:22:30,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:30,519 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-07-22 22:22:30,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:22:30,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325079528] [2022-07-22 22:22:30,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325079528] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:22:30,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:22:30,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 22:22:30,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971848539] [2022-07-22 22:22:30,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:22:30,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 22:22:30,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:22:30,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 22:22:30,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 22:22:30,548 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) [2022-07-22 22:22:30,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:22:30,742 INFO L93 Difference]: Finished difference Result 217 states and 299 transitions. [2022-07-22 22:22:30,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 22:22:30,744 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 [2022-07-22 22:22:30,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:22:30,750 INFO L225 Difference]: With dead ends: 217 [2022-07-22 22:22:30,750 INFO L226 Difference]: Without dead ends: 104 [2022-07-22 22:22:30,753 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 [2022-07-22 22:22:30,755 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, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 22:22:30,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 182 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 22:22:30,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-07-22 22:22:30,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2022-07-22 22:22:30,784 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) [2022-07-22 22:22:30,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 132 transitions. [2022-07-22 22:22:30,787 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 132 transitions. Word has length 93 [2022-07-22 22:22:30,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:22:30,788 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 132 transitions. [2022-07-22 22:22:30,788 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) [2022-07-22 22:22:30,789 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 132 transitions. [2022-07-22 22:22:30,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-22 22:22:30,792 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:22:30,792 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] [2022-07-22 22:22:30,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 22:22:30,793 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:22:30,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:22:30,793 INFO L85 PathProgramCache]: Analyzing trace with hash 566240687, now seen corresponding path program 1 times [2022-07-22 22:22:30,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:22:30,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989035384] [2022-07-22 22:22:30,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:22:30,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:22:30,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:30,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:22:31,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:31,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:22:31,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:31,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 22:22:31,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:31,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 22:22:31,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:31,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:22:31,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:31,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 22:22:31,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:31,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-22 22:22:31,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:31,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-22 22:22:31,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:31,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 22:22:31,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:31,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-22 22:22:31,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:31,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-22 22:22:31,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:31,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-22 22:22:31,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:31,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-22 22:22:31,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:31,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-22 22:22:31,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:31,432 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-07-22 22:22:31,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:22:31,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989035384] [2022-07-22 22:22:31,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989035384] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:22:31,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [419235073] [2022-07-22 22:22:31,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:22:31,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:22:31,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:22:31,434 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) [2022-07-22 22:22:31,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 22:22:31,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:31,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 907 conjuncts, 27 conjunts are in the unsatisfiable core [2022-07-22 22:22:31,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:22:31,772 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-07-22 22:22:31,772 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:22:31,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [419235073] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:22:31,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 22:22:31,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [19] total 24 [2022-07-22 22:22:31,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819407576] [2022-07-22 22:22:31,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:22:31,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-22 22:22:31,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:22:31,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-22 22:22:31,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=502, Unknown=0, NotChecked=0, Total=552 [2022-07-22 22:22:31,775 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) [2022-07-22 22:22:32,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:22:32,037 INFO L93 Difference]: Finished difference Result 192 states and 252 transitions. [2022-07-22 22:22:32,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-22 22:22:32,038 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 [2022-07-22 22:22:32,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:22:32,040 INFO L225 Difference]: With dead ends: 192 [2022-07-22 22:22:32,040 INFO L226 Difference]: Without dead ends: 144 [2022-07-22 22:22:32,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=843, Unknown=0, NotChecked=0, Total=930 [2022-07-22 22:22:32,041 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 [2022-07-22 22:22:32,042 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] [2022-07-22 22:22:32,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2022-07-22 22:22:32,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 117. [2022-07-22 22:22:32,052 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) [2022-07-22 22:22:32,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 152 transitions. [2022-07-22 22:22:32,054 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 152 transitions. Word has length 96 [2022-07-22 22:22:32,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:22:32,055 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 152 transitions. [2022-07-22 22:22:32,056 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) [2022-07-22 22:22:32,056 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 152 transitions. [2022-07-22 22:22:32,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-07-22 22:22:32,059 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:22:32,059 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] [2022-07-22 22:22:32,081 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-22 22:22:32,278 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 [2022-07-22 22:22:32,278 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:22:32,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:22:32,279 INFO L85 PathProgramCache]: Analyzing trace with hash 18133626, now seen corresponding path program 1 times [2022-07-22 22:22:32,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:22:32,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160064947] [2022-07-22 22:22:32,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:22:32,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:22:32,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:32,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:22:32,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:32,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:22:32,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:32,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 22:22:32,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:32,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 22:22:32,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:32,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:22:32,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:32,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 22:22:32,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:32,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-22 22:22:32,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:32,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-22 22:22:32,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:32,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 22:22:32,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:32,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-22 22:22:32,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:32,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-22 22:22:32,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:32,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-22 22:22:32,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:32,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-22 22:22:32,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:32,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-22 22:22:32,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:32,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-22 22:22:32,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:32,782 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-07-22 22:22:32,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:22:32,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160064947] [2022-07-22 22:22:32,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160064947] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:22:32,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [901757610] [2022-07-22 22:22:32,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:22:32,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:22:32,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:22:32,785 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) [2022-07-22 22:22:32,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-22 22:22:32,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:32,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 935 conjuncts, 29 conjunts are in the unsatisfiable core [2022-07-22 22:22:32,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:22:33,223 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-07-22 22:22:33,224 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:22:33,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [901757610] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:22:33,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 22:22:33,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [17] total 26 [2022-07-22 22:22:33,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463265281] [2022-07-22 22:22:33,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:22:33,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-22 22:22:33,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:22:33,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-22 22:22:33,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=595, Unknown=0, NotChecked=0, Total=650 [2022-07-22 22:22:33,226 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) [2022-07-22 22:22:33,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:22:33,524 INFO L93 Difference]: Finished difference Result 209 states and 275 transitions. [2022-07-22 22:22:33,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-22 22:22:33,525 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 [2022-07-22 22:22:33,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:22:33,526 INFO L225 Difference]: With dead ends: 209 [2022-07-22 22:22:33,527 INFO L226 Difference]: Without dead ends: 174 [2022-07-22 22:22:33,527 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 [2022-07-22 22:22:33,528 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 151 mSDsluCounter, 1394 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-07-22 22:22:33,528 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] [2022-07-22 22:22:33,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-07-22 22:22:33,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 125. [2022-07-22 22:22:33,538 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) [2022-07-22 22:22:33,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 163 transitions. [2022-07-22 22:22:33,539 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 163 transitions. Word has length 105 [2022-07-22 22:22:33,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:22:33,539 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 163 transitions. [2022-07-22 22:22:33,539 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) [2022-07-22 22:22:33,540 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 163 transitions. [2022-07-22 22:22:33,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-07-22 22:22:33,541 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:22:33,541 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] [2022-07-22 22:22:33,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-22 22:22:33,760 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 [2022-07-22 22:22:33,760 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:22:33,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:22:33,760 INFO L85 PathProgramCache]: Analyzing trace with hash 864229612, now seen corresponding path program 1 times [2022-07-22 22:22:33,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:22:33,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065143348] [2022-07-22 22:22:33,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:22:33,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:22:33,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:33,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:22:33,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:33,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:22:33,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:33,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 22:22:33,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:33,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 22:22:33,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:33,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:22:33,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:33,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 22:22:33,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:33,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-22 22:22:33,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:33,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-22 22:22:33,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:33,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 22:22:33,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:33,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-22 22:22:33,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:33,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-22 22:22:33,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:33,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-22 22:22:33,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:33,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-22 22:22:33,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:34,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-22 22:22:34,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:34,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-22 22:22:34,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:34,019 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-07-22 22:22:34,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:22:34,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065143348] [2022-07-22 22:22:34,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065143348] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:22:34,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:22:34,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 22:22:34,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425999935] [2022-07-22 22:22:34,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:22:34,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 22:22:34,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:22:34,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 22:22:34,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-22 22:22:34,022 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) [2022-07-22 22:22:34,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:22:34,352 INFO L93 Difference]: Finished difference Result 213 states and 279 transitions. [2022-07-22 22:22:34,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 22:22:34,352 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 [2022-07-22 22:22:34,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:22:34,356 INFO L225 Difference]: With dead ends: 213 [2022-07-22 22:22:34,356 INFO L226 Difference]: Without dead ends: 160 [2022-07-22 22:22:34,357 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 [2022-07-22 22:22:34,359 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, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 22:22:34,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 400 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 22:22:34,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-07-22 22:22:34,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 122. [2022-07-22 22:22:34,382 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) [2022-07-22 22:22:34,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 158 transitions. [2022-07-22 22:22:34,383 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 158 transitions. Word has length 106 [2022-07-22 22:22:34,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:22:34,384 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 158 transitions. [2022-07-22 22:22:34,384 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) [2022-07-22 22:22:34,385 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 158 transitions. [2022-07-22 22:22:34,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-07-22 22:22:34,387 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:22:34,387 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] [2022-07-22 22:22:34,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-22 22:22:34,387 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:22:34,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:22:34,388 INFO L85 PathProgramCache]: Analyzing trace with hash -704073469, now seen corresponding path program 1 times [2022-07-22 22:22:34,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:22:34,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525572497] [2022-07-22 22:22:34,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:22:34,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:22:34,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:34,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:22:34,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:34,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:22:34,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:34,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 22:22:34,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:34,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 22:22:34,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:34,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:22:34,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:34,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 22:22:34,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:34,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-22 22:22:34,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:34,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-22 22:22:34,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:34,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:22:34,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:34,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 22:22:34,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:34,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 22:22:34,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:34,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:22:34,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:34,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 22:22:34,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:34,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 22:22:34,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:34,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-22 22:22:34,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:34,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-22 22:22:34,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:34,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-22 22:22:34,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:34,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-22 22:22:34,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:34,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-22 22:22:34,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:34,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-22 22:22:34,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:34,838 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 28 proven. 24 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2022-07-22 22:22:34,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:22:34,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525572497] [2022-07-22 22:22:34,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525572497] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:22:34,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1600254494] [2022-07-22 22:22:34,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:22:34,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:22:34,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:22:34,840 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) [2022-07-22 22:22:34,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-22 22:22:35,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:22:35,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 1054 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-22 22:22:35,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:22:35,217 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 48 proven. 9 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-07-22 22:22:35,217 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 22:22:35,334 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2022-07-22 22:22:35,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1600254494] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 22:22:35,335 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 22:22:35,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 11, 11] total 27 [2022-07-22 22:22:35,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381700230] [2022-07-22 22:22:35,335 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 22:22:35,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-07-22 22:22:35,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:22:35,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-07-22 22:22:35,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2022-07-22 22:22:35,336 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) [2022-07-22 22:22:35,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:22:35,869 INFO L93 Difference]: Finished difference Result 155 states and 192 transitions. [2022-07-22 22:22:35,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 22:22:35,870 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 [2022-07-22 22:22:35,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:22:35,870 INFO L225 Difference]: With dead ends: 155 [2022-07-22 22:22:35,870 INFO L226 Difference]: Without dead ends: 0 [2022-07-22 22:22:35,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=142, Invalid=1340, Unknown=0, NotChecked=0, Total=1482 [2022-07-22 22:22:35,871 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 [2022-07-22 22:22:35,872 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] [2022-07-22 22:22:35,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-22 22:22:35,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-22 22:22:35,872 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) [2022-07-22 22:22:35,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-22 22:22:35,873 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 130 [2022-07-22 22:22:35,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:22:35,873 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 22:22:35,873 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) [2022-07-22 22:22:35,873 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-22 22:22:35,873 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-22 22:22:35,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-22 22:22:35,893 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-22 22:22:36,076 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 [2022-07-22 22:22:36,078 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-22 22:22:36,202 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$.offset)|) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= (+ |ensure_string_is_allocated_bounded_length_~max_size#1| (- 96)) 0)) (= |old(#valid)| |#valid|)) [2022-07-22 22:22:36,202 INFO L899 garLoopResultBuilder]: For program point L6815-1(line 6815) no Hoare annotation was computed. [2022-07-22 22:22:36,202 INFO L895 garLoopResultBuilder]: At program point L6815(line 6815) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= (+ |ensure_string_is_allocated_bounded_length_~max_size#1| (- 96)) 0)) (= |old(#valid)| |#valid|)) [2022-07-22 22:22:36,202 INFO L899 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthEXIT(lines 6813 6817) no Hoare annotation was computed. [2022-07-22 22:22:36,202 INFO L899 garLoopResultBuilder]: For program point L6814-1(line 6814) no Hoare annotation was computed. [2022-07-22 22:22:36,202 INFO L895 garLoopResultBuilder]: At program point ensure_string_is_allocated_bounded_lengthENTRY(lines 6813 6817) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|)) [2022-07-22 22:22:36,203 INFO L895 garLoopResultBuilder]: At program point L6828(lines 6819 6829) the Hoare annotation is: (and (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 96)) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_#res#1.base| 0)) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= (+ |ensure_string_is_allocated_bounded_length_~max_size#1| (- 96)) 0))) [2022-07-22 22:22:36,203 INFO L899 garLoopResultBuilder]: For program point L6823-1(lines 6823 6824) no Hoare annotation was computed. [2022-07-22 22:22:36,203 INFO L895 garLoopResultBuilder]: At program point L6823(line 6823) the Hoare annotation is: (and (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 96)) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= (+ |ensure_string_is_allocated_bounded_length_~max_size#1| (- 96)) 0))) [2022-07-22 22:22:36,203 INFO L899 garLoopResultBuilder]: For program point L6823-5(lines 6823 6824) no Hoare annotation was computed. [2022-07-22 22:22:36,203 INFO L899 garLoopResultBuilder]: For program point L6820-1(line 6820) no Hoare annotation was computed. [2022-07-22 22:22:36,203 INFO L895 garLoopResultBuilder]: At program point L6820(line 6820) the Hoare annotation is: (let ((.cse0 (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 96)))) (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$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|))) [2022-07-22 22:22:36,203 INFO L899 garLoopResultBuilder]: For program point L6823-3(line 6823) no Hoare annotation was computed. [2022-07-22 22:22:36,204 INFO L899 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthFINAL(lines 6813 6817) no Hoare annotation was computed. [2022-07-22 22:22:36,204 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))) [2022-07-22 22:22:36,204 INFO L899 garLoopResultBuilder]: For program point L6896-1(lines 6896 6898) no Hoare annotation was computed. [2022-07-22 22:22:36,204 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|)) [2022-07-22 22:22:36,204 INFO L895 garLoopResultBuilder]: At program point bounded_mallocENTRY(lines 6895 6900) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2022-07-22 22:22:36,204 INFO L899 garLoopResultBuilder]: For program point bounded_mallocFINAL(lines 6895 6900) no Hoare annotation was computed. [2022-07-22 22:22:36,204 INFO L899 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6895 6900) no Hoare annotation was computed. [2022-07-22 22:22:36,204 INFO L902 garLoopResultBuilder]: At program point aws_array_eqENTRY(lines 7686 7706) the Hoare annotation is: true [2022-07-22 22:22:36,205 INFO L899 garLoopResultBuilder]: For program point L7690(lines 7687 7706) no Hoare annotation was computed. [2022-07-22 22:22:36,205 INFO L899 garLoopResultBuilder]: For program point aws_array_eqEXIT(lines 7686 7706) no Hoare annotation was computed. [2022-07-22 22:22:36,205 INFO L902 garLoopResultBuilder]: At program point L7688-1(line 7688) the Hoare annotation is: true [2022-07-22 22:22:36,205 INFO L902 garLoopResultBuilder]: At program point L7688(line 7688) the Hoare annotation is: true [2022-07-22 22:22:36,205 INFO L899 garLoopResultBuilder]: For program point aws_array_eqFINAL(lines 7686 7706) no Hoare annotation was computed. [2022-07-22 22:22:36,205 INFO L899 garLoopResultBuilder]: For program point L7699(lines 7699 7703) no Hoare annotation was computed. [2022-07-22 22:22:36,205 INFO L899 garLoopResultBuilder]: For program point nondet_boolFINAL(line 261) no Hoare annotation was computed. [2022-07-22 22:22:36,205 INFO L899 garLoopResultBuilder]: For program point nondet_boolEXIT(line 261) no Hoare annotation was computed. [2022-07-22 22:22:36,205 INFO L902 garLoopResultBuilder]: At program point nondet_boolENTRY(line 261) the Hoare annotation is: true [2022-07-22 22:22:36,206 INFO L899 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2022-07-22 22:22:36,206 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 210 212) the Hoare annotation is: true [2022-07-22 22:22:36,206 INFO L899 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2022-07-22 22:22:36,206 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2022-07-22 22:22:36,206 INFO L899 garLoopResultBuilder]: For program point aws_c_string_is_validFINAL(lines 6263 6273) no Hoare annotation was computed. [2022-07-22 22:22:36,206 INFO L902 garLoopResultBuilder]: At program point aws_c_string_is_validENTRY(lines 6263 6273) the Hoare annotation is: true [2022-07-22 22:22:36,206 INFO L899 garLoopResultBuilder]: For program point aws_c_string_is_validEXIT(lines 6263 6273) no Hoare annotation was computed. [2022-07-22 22:22:36,206 INFO L899 garLoopResultBuilder]: For program point can_fail_allocatorFINAL(lines 6902 6904) no Hoare annotation was computed. [2022-07-22 22:22:36,206 INFO L899 garLoopResultBuilder]: For program point can_fail_allocatorEXIT(lines 6902 6904) no Hoare annotation was computed. [2022-07-22 22:22:36,207 INFO L902 garLoopResultBuilder]: At program point can_fail_allocatorENTRY(lines 6902 6904) the Hoare annotation is: true [2022-07-22 22:22:36,207 INFO L902 garLoopResultBuilder]: At program point aws_string_is_validENTRY(lines 6253 6258) the Hoare annotation is: true [2022-07-22 22:22:36,207 INFO L899 garLoopResultBuilder]: For program point L6257-2(line 6257) no Hoare annotation was computed. [2022-07-22 22:22:36,207 INFO L899 garLoopResultBuilder]: For program point L6257-3(line 6257) no Hoare annotation was computed. [2022-07-22 22:22:36,207 INFO L899 garLoopResultBuilder]: For program point L6257(line 6257) no Hoare annotation was computed. [2022-07-22 22:22:36,207 INFO L899 garLoopResultBuilder]: For program point aws_string_is_validFINAL(lines 6253 6258) no Hoare annotation was computed. [2022-07-22 22:22:36,207 INFO L899 garLoopResultBuilder]: For program point L6257-5(line 6257) no Hoare annotation was computed. [2022-07-22 22:22:36,207 INFO L899 garLoopResultBuilder]: For program point aws_string_is_validEXIT(lines 6253 6258) no Hoare annotation was computed. [2022-07-22 22:22:36,208 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2022-07-22 22:22:36,208 INFO L902 garLoopResultBuilder]: At program point nondet_uint64_tENTRY(line 266) the Hoare annotation is: true [2022-07-22 22:22:36,208 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tFINAL(line 266) no Hoare annotation was computed. [2022-07-22 22:22:36,208 INFO L895 garLoopResultBuilder]: At program point L11324(line 11324) the Hoare annotation is: false [2022-07-22 22:22:36,208 INFO L899 garLoopResultBuilder]: For program point L11324-1(line 11324) no Hoare annotation was computed. [2022-07-22 22:22:36,208 INFO L902 garLoopResultBuilder]: At program point L11328(line 11328) the Hoare annotation is: true [2022-07-22 22:22:36,208 INFO L899 garLoopResultBuilder]: For program point L11060(lines 11060 11064) no Hoare annotation was computed. [2022-07-22 22:22:36,208 INFO L899 garLoopResultBuilder]: For program point L7113-1(lines 7112 7125) no Hoare annotation was computed. [2022-07-22 22:22:36,208 INFO L895 garLoopResultBuilder]: At program point L7113(line 7113) the Hoare annotation is: false [2022-07-22 22:22:36,209 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-22 22:22:36,209 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-22 22:22:36,209 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-22 22:22:36,209 INFO L895 garLoopResultBuilder]: At program point L10805-1(line 10805) the Hoare annotation is: false [2022-07-22 22:22:36,209 INFO L895 garLoopResultBuilder]: At program point L10805(line 10805) the Hoare annotation is: false [2022-07-22 22:22:36,209 INFO L899 garLoopResultBuilder]: For program point L11317(lines 11317 11327) no Hoare annotation was computed. [2022-07-22 22:22:36,209 INFO L899 garLoopResultBuilder]: For program point L10805-2(line 10805) no Hoare annotation was computed. [2022-07-22 22:22:36,209 INFO L899 garLoopResultBuilder]: For program point L11065(lines 11065 11073) no Hoare annotation was computed. [2022-07-22 22:22:36,209 INFO L895 garLoopResultBuilder]: At program point L11074(line 11074) the Hoare annotation is: false [2022-07-22 22:22:36,209 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-22 22:22:36,210 INFO L895 garLoopResultBuilder]: At program point L11074-2(lines 11056 11075) the Hoare annotation is: false [2022-07-22 22:22:36,210 INFO L899 garLoopResultBuilder]: For program point L11074-1(line 11074) no Hoare annotation was computed. [2022-07-22 22:22:36,210 INFO L899 garLoopResultBuilder]: For program point L10806-2(line 10806) no Hoare annotation was computed. [2022-07-22 22:22:36,210 INFO L895 garLoopResultBuilder]: At program point L10810-6(line 10810) the Hoare annotation is: false [2022-07-22 22:22:36,210 INFO L899 garLoopResultBuilder]: For program point L11318-1(line 11318) no Hoare annotation was computed. [2022-07-22 22:22:36,210 INFO L895 garLoopResultBuilder]: At program point L10806-1(line 10806) the Hoare annotation is: false [2022-07-22 22:22:36,210 INFO L899 garLoopResultBuilder]: For program point L11058(line 11058) no Hoare annotation was computed. [2022-07-22 22:22:36,210 INFO L899 garLoopResultBuilder]: For program point L10810-7(line 10810) no Hoare annotation was computed. [2022-07-22 22:22:36,210 INFO L899 garLoopResultBuilder]: For program point L10810-2(line 10810) no Hoare annotation was computed. [2022-07-22 22:22:36,211 INFO L899 garLoopResultBuilder]: For program point L7123-1(line 7123) no Hoare annotation was computed. [2022-07-22 22:22:36,211 INFO L899 garLoopResultBuilder]: For program point L10810-1(line 10810) no Hoare annotation was computed. [2022-07-22 22:22:36,211 INFO L895 garLoopResultBuilder]: At program point L7123(line 7123) the Hoare annotation is: false [2022-07-22 22:22:36,211 INFO L902 garLoopResultBuilder]: At program point L11318(line 11318) the Hoare annotation is: true [2022-07-22 22:22:36,211 INFO L895 garLoopResultBuilder]: At program point L10806(line 10806) the Hoare annotation is: false [2022-07-22 22:22:36,211 INFO L899 garLoopResultBuilder]: For program point L10810-4(line 10810) no Hoare annotation was computed. [2022-07-22 22:22:36,211 INFO L895 garLoopResultBuilder]: At program point L10810-3(line 10810) the Hoare annotation is: false [2022-07-22 22:22:36,211 INFO L899 garLoopResultBuilder]: For program point L7119-1(line 7119) no Hoare annotation was computed. [2022-07-22 22:22:36,211 INFO L899 garLoopResultBuilder]: For program point L11058-5(line 11058) no Hoare annotation was computed. [2022-07-22 22:22:36,212 INFO L895 garLoopResultBuilder]: At program point L7119(line 7119) the Hoare annotation is: false [2022-07-22 22:22:36,212 INFO L895 garLoopResultBuilder]: At program point L11058-2(line 11058) the Hoare annotation is: false [2022-07-22 22:22:36,212 INFO L895 garLoopResultBuilder]: At program point L10810-9(line 10810) the Hoare annotation is: false [2022-07-22 22:22:36,212 INFO L895 garLoopResultBuilder]: At program point L11058-4(line 11058) the Hoare annotation is: false [2022-07-22 22:22:36,212 INFO L899 garLoopResultBuilder]: For program point L11058-3(line 11058) no Hoare annotation was computed. [2022-07-22 22:22:36,212 INFO L899 garLoopResultBuilder]: For program point L11323(lines 11323 11326) no Hoare annotation was computed. [2022-07-22 22:22:36,212 INFO L895 garLoopResultBuilder]: At program point L11319-3(line 11319) the Hoare annotation is: false [2022-07-22 22:22:36,212 INFO L899 garLoopResultBuilder]: For program point L11319-5(line 11319) no Hoare annotation was computed. [2022-07-22 22:22:36,212 INFO L899 garLoopResultBuilder]: For program point L11319-4(line 11319) no Hoare annotation was computed. [2022-07-22 22:22:36,213 INFO L899 garLoopResultBuilder]: For program point L11059(line 11059) no Hoare annotation was computed. [2022-07-22 22:22:36,213 INFO L895 garLoopResultBuilder]: At program point L10803(lines 10803 10811) the Hoare annotation is: false [2022-07-22 22:22:36,213 INFO L899 garLoopResultBuilder]: For program point L11319-1(line 11319) no Hoare annotation was computed. [2022-07-22 22:22:36,213 INFO L895 garLoopResultBuilder]: At program point L11319(line 11319) the Hoare annotation is: false [2022-07-22 22:22:36,213 INFO L899 garLoopResultBuilder]: For program point L7120-1(lines 7120 7122) no Hoare annotation was computed. [2022-07-22 22:22:36,213 INFO L895 garLoopResultBuilder]: At program point L7120(lines 7120 7122) the Hoare annotation is: false [2022-07-22 22:22:36,213 INFO L899 garLoopResultBuilder]: For program point L11059-3(line 11059) no Hoare annotation was computed. [2022-07-22 22:22:36,213 INFO L895 garLoopResultBuilder]: At program point L11059-2(line 11059) the Hoare annotation is: false [2022-07-22 22:22:36,213 INFO L899 garLoopResultBuilder]: For program point L11059-5(line 11059) no Hoare annotation was computed. [2022-07-22 22:22:36,214 INFO L895 garLoopResultBuilder]: At program point L11059-4(line 11059) the Hoare annotation is: false [2022-07-22 22:22:36,214 INFO L899 garLoopResultBuilder]: For program point L7112(lines 7112 7125) no Hoare annotation was computed. [2022-07-22 22:22:36,214 INFO L899 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2022-07-22 22:22:36,214 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 222 224) the Hoare annotation is: true [2022-07-22 22:22:36,214 INFO L899 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2022-07-22 22:22:36,214 INFO L899 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2022-07-22 22:22:36,214 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2022-07-22 22:22:36,214 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2022-07-22 22:22:36,217 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-07-22 22:22:36,218 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 22:22:36,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 10:22:36 BoogieIcfgContainer [2022-07-22 22:22:36,227 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 22:22:36,228 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 22:22:36,228 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 22:22:36,228 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 22:22:36,229 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 10:22:30" (3/4) ... [2022-07-22 22:22:36,230 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-22 22:22:36,236 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ensure_string_is_allocated_bounded_length [2022-07-22 22:22:36,236 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2022-07-22 22:22:36,236 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_eq [2022-07-22 22:22:36,236 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2022-07-22 22:22:36,236 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2022-07-22 22:22:36,236 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-07-22 22:22:36,237 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-07-22 22:22:36,237 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_c_string_is_valid [2022-07-22 22:22:36,237 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2022-07-22 22:22:36,237 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_is_valid [2022-07-22 22:22:36,242 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2022-07-22 22:22:36,243 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-07-22 22:22:36,244 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-22 22:22:36,244 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-22 22:22:36,263 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) [2022-07-22 22:22:36,337 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 22:22:36,337 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 22:22:36,337 INFO L158 Benchmark]: Toolchain (without parser) took 9125.04ms. Allocated memory was 98.6MB in the beginning and 291.5MB in the end (delta: 192.9MB). Free memory was 60.0MB in the beginning and 82.2MB in the end (delta: -22.2MB). Peak memory consumption was 168.3MB. Max. memory is 16.1GB. [2022-07-22 22:22:36,337 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 98.6MB. Free memory is still 55.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 22:22:36,338 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2023.39ms. Allocated memory was 98.6MB in the beginning and 163.6MB in the end (delta: 65.0MB). Free memory was 59.8MB in the beginning and 58.1MB in the end (delta: 1.7MB). Peak memory consumption was 71.8MB. Max. memory is 16.1GB. [2022-07-22 22:22:36,338 INFO L158 Benchmark]: Boogie Procedure Inliner took 153.71ms. Allocated memory is still 163.6MB. Free memory was 58.1MB in the beginning and 92.2MB in the end (delta: -34.2MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2022-07-22 22:22:36,338 INFO L158 Benchmark]: Boogie Preprocessor took 69.05ms. Allocated memory is still 163.6MB. Free memory was 92.2MB in the beginning and 88.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-22 22:22:36,338 INFO L158 Benchmark]: RCFGBuilder took 566.32ms. Allocated memory is still 163.6MB. Free memory was 88.0MB in the beginning and 96.6MB in the end (delta: -8.6MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-07-22 22:22:36,339 INFO L158 Benchmark]: TraceAbstraction took 6189.05ms. Allocated memory was 163.6MB in the beginning and 291.5MB in the end (delta: 127.9MB). Free memory was 95.7MB in the beginning and 101.7MB in the end (delta: -6.0MB). Peak memory consumption was 121.7MB. Max. memory is 16.1GB. [2022-07-22 22:22:36,339 INFO L158 Benchmark]: Witness Printer took 109.15ms. Allocated memory is still 291.5MB. Free memory was 101.7MB in the beginning and 82.2MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-07-22 22:22:36,340 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 98.6MB. Free memory is still 55.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2023.39ms. Allocated memory was 98.6MB in the beginning and 163.6MB in the end (delta: 65.0MB). Free memory was 59.8MB in the beginning and 58.1MB in the end (delta: 1.7MB). Peak memory consumption was 71.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 153.71ms. Allocated memory is still 163.6MB. Free memory was 58.1MB in the beginning and 92.2MB in the end (delta: -34.2MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.05ms. Allocated memory is still 163.6MB. Free memory was 92.2MB in the beginning and 88.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 566.32ms. Allocated memory is still 163.6MB. Free memory was 88.0MB in the beginning and 96.6MB in the end (delta: -8.6MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6189.05ms. Allocated memory was 163.6MB in the beginning and 291.5MB in the end (delta: 127.9MB). Free memory was 95.7MB in the beginning and 101.7MB in the end (delta: -6.0MB). Peak memory consumption was 121.7MB. Max. memory is 16.1GB. * Witness Printer took 109.15ms. Allocated memory is still 291.5MB. Free memory was 101.7MB in the beginning and 82.2MB in the end (delta: 19.4MB). 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: 6.1s, OverallIterations: 5, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 524 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 472 mSDsluCounter, 3842 SdHoareTripleChecker+Invalid, 0.8s 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, 1.2s 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, 0.5s SatisfiabilityAnalysisTime, 2.6s 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! [2022-07-22 22:22:36,384 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