./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 eb692b52 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-?-eb692b5 [2022-07-19 22:08:19,956 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 22:08:19,969 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 22:08:20,037 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 22:08:20,038 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 22:08:20,039 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 22:08:20,041 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 22:08:20,045 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 22:08:20,046 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 22:08:20,048 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 22:08:20,049 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 22:08:20,050 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 22:08:20,051 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 22:08:20,055 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 22:08:20,055 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 22:08:20,057 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 22:08:20,060 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 22:08:20,060 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 22:08:20,062 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 22:08:20,063 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 22:08:20,066 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 22:08:20,066 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 22:08:20,067 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 22:08:20,068 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 22:08:20,068 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 22:08:20,070 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 22:08:20,085 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 22:08:20,086 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 22:08:20,087 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 22:08:20,087 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 22:08:20,088 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 22:08:20,088 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 22:08:20,089 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 22:08:20,090 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 22:08:20,090 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 22:08:20,091 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 22:08:20,091 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 22:08:20,091 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 22:08:20,091 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 22:08:20,092 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 22:08:20,092 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 22:08:20,093 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 22:08:20,094 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-19 22:08:20,114 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 22:08:20,131 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 22:08:20,131 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 22:08:20,132 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 22:08:20,132 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 22:08:20,133 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 22:08:20,133 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 22:08:20,133 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 22:08:20,133 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 22:08:20,134 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 22:08:20,134 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 22:08:20,134 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 22:08:20,134 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 22:08:20,135 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 22:08:20,135 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 22:08:20,135 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 22:08:20,135 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 22:08:20,135 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 22:08:20,135 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 22:08:20,135 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 22:08:20,136 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 22:08:20,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 22:08:20,136 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 22:08:20,136 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 22:08:20,137 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 22:08:20,137 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 22:08:20,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 22:08:20,137 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 22:08:20,137 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 22:08:20,137 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 22:08:20,138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 617e08addfe2d13b261907959d3757079a581721356bb3e7b4090decaff2b168 [2022-07-19 22:08:20,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 22:08:20,396 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 22:08:20,398 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 22:08:20,398 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 22:08:20,399 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 22:08:20,400 INFO L432 ainManager$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 [2022-07-19 22:08:20,455 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b85faf116/952c92cd131645a1a6d5709522b379a7/FLAGfbac59b0a [2022-07-19 22:08:21,030 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 22:08:21,030 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i [2022-07-19 22:08:21,059 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b85faf116/952c92cd131645a1a6d5709522b379a7/FLAGfbac59b0a [2022-07-19 22:08:21,194 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b85faf116/952c92cd131645a1a6d5709522b379a7 [2022-07-19 22:08:21,196 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 22:08:21,198 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 22:08:21,198 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 22:08:21,198 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 22:08:21,201 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 22:08:21,201 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:08:21" (1/1) ... [2022-07-19 22:08:21,202 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60c05e5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:08:21, skipping insertion in model container [2022-07-19 22:08:21,202 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:08:21" (1/1) ... [2022-07-19 22:08:21,207 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 22:08:21,279 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 22:08:21,486 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] [2022-07-19 22:08:21,493 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] [2022-07-19 22:08:22,280 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:22,281 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:22,281 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:22,282 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:22,283 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:22,289 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:22,290 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:22,291 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:22,291 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:22,627 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-19 22:08:22,628 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-19 22:08:22,628 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-19 22:08:22,629 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-19 22:08:22,630 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-19 22:08:22,630 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-19 22:08:22,631 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-19 22:08:22,631 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-19 22:08:22,632 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-19 22:08:22,640 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-19 22:08:22,764 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-19 22:08:22,812 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:22,813 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:22,993 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:22,993 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:23,008 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:23,009 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:23,014 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:23,015 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:23,028 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:23,029 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:23,029 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:23,030 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:23,030 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:23,031 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:23,031 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:23,088 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 22:08:23,122 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 22:08:23,138 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] [2022-07-19 22:08:23,139 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] [2022-07-19 22:08:23,170 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:23,171 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:23,171 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:23,171 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:23,171 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:23,175 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:23,176 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:23,176 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:23,177 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:23,200 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-19 22:08:23,201 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-19 22:08:23,201 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-19 22:08:23,201 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-19 22:08:23,202 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-19 22:08:23,202 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-19 22:08:23,203 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-19 22:08:23,203 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-19 22:08:23,203 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-19 22:08:23,203 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-19 22:08:23,215 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-19 22:08:23,248 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:23,250 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:23,313 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:23,314 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:23,319 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:23,319 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:23,322 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:23,323 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:23,328 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:23,329 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:23,329 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:23,329 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:23,329 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:23,330 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:23,330 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:08:23,353 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 22:08:23,511 INFO L208 MainTranslator]: Completed translation [2022-07-19 22:08:23,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:08:23 WrapperNode [2022-07-19 22:08:23,512 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 22:08:23,513 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 22:08:23,513 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 22:08:23,513 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 22:08:23,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:08:23" (1/1) ... [2022-07-19 22:08:23,601 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:08:23" (1/1) ... [2022-07-19 22:08:23,654 INFO L137 Inliner]: procedures = 768, calls = 3257, calls flagged for inlining = 77, calls inlined = 7, statements flattened = 399 [2022-07-19 22:08:23,655 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 22:08:23,656 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 22:08:23,656 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 22:08:23,656 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 22:08:23,664 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:08:23" (1/1) ... [2022-07-19 22:08:23,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:08:23" (1/1) ... [2022-07-19 22:08:23,674 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:08:23" (1/1) ... [2022-07-19 22:08:23,675 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:08:23" (1/1) ... [2022-07-19 22:08:23,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:08:23" (1/1) ... [2022-07-19 22:08:23,690 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:08:23" (1/1) ... [2022-07-19 22:08:23,693 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:08:23" (1/1) ... [2022-07-19 22:08:23,698 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 22:08:23,699 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 22:08:23,699 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 22:08:23,699 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 22:08:23,701 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:08:23" (1/1) ... [2022-07-19 22:08:23,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 22:08:23,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:08:23,757 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) [2022-07-19 22:08:23,762 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 [2022-07-19 22:08:23,798 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2022-07-19 22:08:23,798 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2022-07-19 22:08:23,798 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2022-07-19 22:08:23,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2022-07-19 22:08:23,798 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-07-19 22:08:23,799 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-07-19 22:08:23,799 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-07-19 22:08:23,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-19 22:08:23,799 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-19 22:08:23,800 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-19 22:08:23,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-19 22:08:23,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 22:08:23,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-19 22:08:23,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 22:08:23,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 22:08:23,800 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-07-19 22:08:23,800 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-07-19 22:08:23,800 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-19 22:08:23,801 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-19 22:08:23,801 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2022-07-19 22:08:23,801 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2022-07-19 22:08:23,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-19 22:08:23,802 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-07-19 22:08:23,802 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-07-19 22:08:23,802 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-07-19 22:08:23,802 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-07-19 22:08:23,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-19 22:08:23,802 INFO L130 BoogieDeclarations]: Found specification of procedure aws_c_string_is_valid [2022-07-19 22:08:23,802 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_c_string_is_valid [2022-07-19 22:08:23,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 22:08:24,029 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 22:08:24,030 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 22:08:24,310 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !true; [2022-07-19 22:08:24,318 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 22:08:24,323 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 22:08:24,323 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-19 22:08:24,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:08:24 BoogieIcfgContainer [2022-07-19 22:08:24,325 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 22:08:24,326 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 22:08:24,326 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 22:08:24,329 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 22:08:24,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 10:08:21" (1/3) ... [2022-07-19 22:08:24,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24aa7f17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 10:08:24, skipping insertion in model container [2022-07-19 22:08:24,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:08:23" (2/3) ... [2022-07-19 22:08:24,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24aa7f17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 10:08:24, skipping insertion in model container [2022-07-19 22:08:24,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:08:24" (3/3) ... [2022-07-19 22:08:24,331 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_callback_string_eq_harness.i [2022-07-19 22:08:24,339 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 22:08:24,340 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 22:08:24,369 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 22:08:24,374 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@7c7dd167, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3f87e256 [2022-07-19 22:08:24,375 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 22:08:24,377 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) [2022-07-19 22:08:24,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-19 22:08:24,385 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:08:24,386 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] [2022-07-19 22:08:24,386 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:08:24,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:08:24,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1707101443, now seen corresponding path program 1 times [2022-07-19 22:08:24,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:08:24,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555257155] [2022-07-19 22:08:24,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:08:24,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:08:24,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:24,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 22:08:24,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:24,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:08:24,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:24,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 22:08:24,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:24,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 22:08:24,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:24,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:08:24,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:24,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-19 22:08:24,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:24,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-19 22:08:24,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:24,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-19 22:08:24,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:24,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-19 22:08:24,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:24,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-19 22:08:24,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:24,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-19 22:08:24,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:24,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-19 22:08:24,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:24,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-19 22:08:24,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:24,990 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-07-19 22:08:24,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:08:24,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555257155] [2022-07-19 22:08:24,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555257155] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:08:24,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:08:24,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 22:08:24,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242955855] [2022-07-19 22:08:24,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:08:24,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 22:08:24,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:08:25,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 22:08:25,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-19 22:08:25,024 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) [2022-07-19 22:08:25,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:08:25,203 INFO L93 Difference]: Finished difference Result 217 states and 299 transitions. [2022-07-19 22:08:25,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 22:08:25,206 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 [2022-07-19 22:08:25,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:08:25,217 INFO L225 Difference]: With dead ends: 217 [2022-07-19 22:08:25,217 INFO L226 Difference]: Without dead ends: 104 [2022-07-19 22:08:25,220 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 [2022-07-19 22:08:25,225 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 [2022-07-19 22:08:25,225 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] [2022-07-19 22:08:25,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-07-19 22:08:25,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2022-07-19 22:08:25,263 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) [2022-07-19 22:08:25,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 132 transitions. [2022-07-19 22:08:25,270 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 132 transitions. Word has length 93 [2022-07-19 22:08:25,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:08:25,271 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 132 transitions. [2022-07-19 22:08:25,271 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) [2022-07-19 22:08:25,271 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 132 transitions. [2022-07-19 22:08:25,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-19 22:08:25,278 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:08:25,278 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] [2022-07-19 22:08:25,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 22:08:25,278 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:08:25,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:08:25,279 INFO L85 PathProgramCache]: Analyzing trace with hash 566240687, now seen corresponding path program 1 times [2022-07-19 22:08:25,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:08:25,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445943798] [2022-07-19 22:08:25,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:08:25,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:08:25,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:25,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 22:08:25,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:25,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:08:25,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:25,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 22:08:25,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:25,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 22:08:25,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:25,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:08:25,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:25,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-19 22:08:25,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:25,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-19 22:08:25,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:25,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-19 22:08:25,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:25,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-19 22:08:25,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:25,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-19 22:08:25,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:25,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-19 22:08:25,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:25,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-19 22:08:25,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:25,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-19 22:08:25,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:25,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-19 22:08:25,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:25,833 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-07-19 22:08:25,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:08:25,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445943798] [2022-07-19 22:08:25,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445943798] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 22:08:25,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1987475958] [2022-07-19 22:08:25,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:08:25,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:08:25,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:08:25,855 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) [2022-07-19 22:08:25,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-19 22:08:26,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:26,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 907 conjuncts, 27 conjunts are in the unsatisfiable core [2022-07-19 22:08:26,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:08:26,197 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-07-19 22:08:26,197 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:08:26,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1987475958] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:08:26,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 22:08:26,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [19] total 24 [2022-07-19 22:08:26,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962480266] [2022-07-19 22:08:26,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:08:26,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-19 22:08:26,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:08:26,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-19 22:08:26,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=502, Unknown=0, NotChecked=0, Total=552 [2022-07-19 22:08:26,200 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) [2022-07-19 22:08:26,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:08:26,433 INFO L93 Difference]: Finished difference Result 192 states and 252 transitions. [2022-07-19 22:08:26,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 22:08:26,434 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 [2022-07-19 22:08:26,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:08:26,435 INFO L225 Difference]: With dead ends: 192 [2022-07-19 22:08:26,435 INFO L226 Difference]: Without dead ends: 144 [2022-07-19 22:08:26,436 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 [2022-07-19 22:08:26,437 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, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 22:08:26,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 1449 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 22:08:26,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2022-07-19 22:08:26,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 117. [2022-07-19 22:08:26,455 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) [2022-07-19 22:08:26,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 152 transitions. [2022-07-19 22:08:26,471 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 152 transitions. Word has length 96 [2022-07-19 22:08:26,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:08:26,472 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 152 transitions. [2022-07-19 22:08:26,472 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) [2022-07-19 22:08:26,472 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 152 transitions. [2022-07-19 22:08:26,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-07-19 22:08:26,473 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:08:26,473 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] [2022-07-19 22:08:26,494 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-19 22:08:26,691 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 [2022-07-19 22:08:26,692 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:08:26,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:08:26,692 INFO L85 PathProgramCache]: Analyzing trace with hash 18133626, now seen corresponding path program 1 times [2022-07-19 22:08:26,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:08:26,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008327488] [2022-07-19 22:08:26,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:08:26,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:08:26,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:26,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 22:08:26,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:26,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:08:26,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:26,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 22:08:26,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:26,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 22:08:26,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:27,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:08:27,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:27,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-19 22:08:27,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:27,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-19 22:08:27,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:27,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-19 22:08:27,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:27,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-19 22:08:27,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:27,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-19 22:08:27,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:27,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-19 22:08:27,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:27,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-19 22:08:27,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:27,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-19 22:08:27,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:27,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-19 22:08:27,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:27,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-19 22:08:27,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:27,138 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-07-19 22:08:27,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:08:27,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008327488] [2022-07-19 22:08:27,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008327488] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 22:08:27,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1849019419] [2022-07-19 22:08:27,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:08:27,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:08:27,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:08:27,156 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) [2022-07-19 22:08:27,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-19 22:08:27,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:27,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 935 conjuncts, 29 conjunts are in the unsatisfiable core [2022-07-19 22:08:27,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:08:27,592 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-07-19 22:08:27,592 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:08:27,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1849019419] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:08:27,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 22:08:27,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [17] total 26 [2022-07-19 22:08:27,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501389481] [2022-07-19 22:08:27,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:08:27,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-19 22:08:27,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:08:27,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-19 22:08:27,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=595, Unknown=0, NotChecked=0, Total=650 [2022-07-19 22:08:27,596 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) [2022-07-19 22:08:27,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:08:27,871 INFO L93 Difference]: Finished difference Result 209 states and 275 transitions. [2022-07-19 22:08:27,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-19 22:08:27,872 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 [2022-07-19 22:08:27,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:08:27,875 INFO L225 Difference]: With dead ends: 209 [2022-07-19 22:08:27,875 INFO L226 Difference]: Without dead ends: 174 [2022-07-19 22:08:27,877 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 [2022-07-19 22:08:27,880 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 [2022-07-19 22:08:27,881 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] [2022-07-19 22:08:27,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-07-19 22:08:27,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 125. [2022-07-19 22:08:27,902 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) [2022-07-19 22:08:27,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 163 transitions. [2022-07-19 22:08:27,904 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 163 transitions. Word has length 105 [2022-07-19 22:08:27,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:08:27,906 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 163 transitions. [2022-07-19 22:08:27,906 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) [2022-07-19 22:08:27,906 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 163 transitions. [2022-07-19 22:08:27,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-07-19 22:08:27,911 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:08:27,911 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] [2022-07-19 22:08:27,934 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-19 22:08:28,132 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 [2022-07-19 22:08:28,132 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:08:28,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:08:28,133 INFO L85 PathProgramCache]: Analyzing trace with hash 864229612, now seen corresponding path program 1 times [2022-07-19 22:08:28,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:08:28,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35937425] [2022-07-19 22:08:28,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:08:28,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:08:28,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:28,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 22:08:28,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:28,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:08:28,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:28,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 22:08:28,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:28,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 22:08:28,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:28,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:08:28,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:28,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-19 22:08:28,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:28,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-19 22:08:28,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:28,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-19 22:08:28,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:28,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-19 22:08:28,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:28,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-19 22:08:28,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:28,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-19 22:08:28,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:28,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-19 22:08:28,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:28,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-19 22:08:28,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:28,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-19 22:08:28,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:28,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-19 22:08:28,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:28,373 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-07-19 22:08:28,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:08:28,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35937425] [2022-07-19 22:08:28,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35937425] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:08:28,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:08:28,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 22:08:28,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341460802] [2022-07-19 22:08:28,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:08:28,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 22:08:28,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:08:28,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 22:08:28,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-19 22:08:28,375 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) [2022-07-19 22:08:28,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:08:28,800 INFO L93 Difference]: Finished difference Result 213 states and 279 transitions. [2022-07-19 22:08:28,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 22:08:28,801 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 [2022-07-19 22:08:28,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:08:28,802 INFO L225 Difference]: With dead ends: 213 [2022-07-19 22:08:28,802 INFO L226 Difference]: Without dead ends: 160 [2022-07-19 22:08:28,809 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 [2022-07-19 22:08:28,810 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 82 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-19 22:08:28,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 400 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-19 22:08:28,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-07-19 22:08:28,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 122. [2022-07-19 22:08:28,818 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) [2022-07-19 22:08:28,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 158 transitions. [2022-07-19 22:08:28,819 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 158 transitions. Word has length 106 [2022-07-19 22:08:28,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:08:28,819 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 158 transitions. [2022-07-19 22:08:28,819 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) [2022-07-19 22:08:28,820 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 158 transitions. [2022-07-19 22:08:28,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-07-19 22:08:28,821 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:08:28,821 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] [2022-07-19 22:08:28,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-19 22:08:28,821 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:08:28,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:08:28,821 INFO L85 PathProgramCache]: Analyzing trace with hash -704073469, now seen corresponding path program 1 times [2022-07-19 22:08:28,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:08:28,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320896554] [2022-07-19 22:08:28,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:08:28,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:08:28,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:28,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 22:08:28,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:28,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:08:28,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:28,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 22:08:28,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:28,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 22:08:28,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:28,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:08:28,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:28,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-19 22:08:28,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:28,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-19 22:08:28,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:28,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-19 22:08:28,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:29,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:08:29,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:29,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 22:08:29,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:29,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 22:08:29,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:29,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:08:29,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:29,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-19 22:08:29,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:29,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 22:08:29,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:29,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-19 22:08:29,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:29,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 22:08:29,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:29,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-19 22:08:29,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:29,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-19 22:08:29,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:29,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-19 22:08:29,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:29,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-19 22:08:29,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:29,227 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 28 proven. 24 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2022-07-19 22:08:29,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:08:29,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320896554] [2022-07-19 22:08:29,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320896554] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 22:08:29,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118177246] [2022-07-19 22:08:29,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:08:29,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:08:29,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:08:29,244 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) [2022-07-19 22:08:29,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-19 22:08:29,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:08:29,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 1054 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-19 22:08:29,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:08:29,626 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 48 proven. 9 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-07-19 22:08:29,626 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 22:08:29,738 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2022-07-19 22:08:29,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118177246] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 22:08:29,738 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 22:08:29,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 11, 11] total 27 [2022-07-19 22:08:29,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196596737] [2022-07-19 22:08:29,739 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 22:08:29,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-07-19 22:08:29,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:08:29,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-07-19 22:08:29,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2022-07-19 22:08:29,740 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) [2022-07-19 22:08:30,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:08:30,194 INFO L93 Difference]: Finished difference Result 155 states and 192 transitions. [2022-07-19 22:08:30,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 22:08:30,194 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 [2022-07-19 22:08:30,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:08:30,194 INFO L225 Difference]: With dead ends: 155 [2022-07-19 22:08:30,195 INFO L226 Difference]: Without dead ends: 0 [2022-07-19 22:08:30,195 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 [2022-07-19 22:08:30,196 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 58 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 22:08:30,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 273 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 22:08:30,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-19 22:08:30,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-19 22:08:30,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 22:08:30,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-19 22:08:30,197 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 130 [2022-07-19 22:08:30,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:08:30,197 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-19 22:08:30,197 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) [2022-07-19 22:08:30,197 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-19 22:08:30,197 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-19 22:08:30,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 22:08:30,218 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-19 22:08:30,407 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 [2022-07-19 22:08:30,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-19 22:08:30,526 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$.offset)|) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= (+ |ensure_string_is_allocated_bounded_length_~max_size#1| (- 96)) 0)) (= |old(#valid)| |#valid|)) [2022-07-19 22:08:30,526 INFO L899 garLoopResultBuilder]: For program point L6815-1(line 6815) no Hoare annotation was computed. [2022-07-19 22:08:30,526 INFO L895 garLoopResultBuilder]: At program point L6815(line 6815) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= (+ |ensure_string_is_allocated_bounded_length_~max_size#1| (- 96)) 0)) (= |old(#valid)| |#valid|)) [2022-07-19 22:08:30,526 INFO L899 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthEXIT(lines 6813 6817) no Hoare annotation was computed. [2022-07-19 22:08:30,527 INFO L899 garLoopResultBuilder]: For program point L6814-1(line 6814) no Hoare annotation was computed. [2022-07-19 22:08:30,527 INFO L895 garLoopResultBuilder]: At program point ensure_string_is_allocated_bounded_lengthENTRY(lines 6813 6817) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|)) [2022-07-19 22:08:30,527 INFO L895 garLoopResultBuilder]: At program point L6828(lines 6819 6829) the Hoare annotation is: (and (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 96)) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_#res#1.base| 0)) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= (+ |ensure_string_is_allocated_bounded_length_~max_size#1| (- 96)) 0))) [2022-07-19 22:08:30,527 INFO L899 garLoopResultBuilder]: For program point L6823-1(lines 6823 6824) no Hoare annotation was computed. [2022-07-19 22:08:30,527 INFO L895 garLoopResultBuilder]: At program point L6823(line 6823) the Hoare annotation is: (and (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 96)) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= (+ |ensure_string_is_allocated_bounded_length_~max_size#1| (- 96)) 0))) [2022-07-19 22:08:30,527 INFO L899 garLoopResultBuilder]: For program point L6823-5(lines 6823 6824) no Hoare annotation was computed. [2022-07-19 22:08:30,527 INFO L899 garLoopResultBuilder]: For program point L6820-1(line 6820) no Hoare annotation was computed. [2022-07-19 22:08:30,527 INFO L895 garLoopResultBuilder]: At program point L6820(line 6820) the Hoare annotation is: (let ((.cse0 (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 96)))) (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$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|))) [2022-07-19 22:08:30,528 INFO L899 garLoopResultBuilder]: For program point L6823-3(line 6823) no Hoare annotation was computed. [2022-07-19 22:08:30,528 INFO L899 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthFINAL(lines 6813 6817) no Hoare annotation was computed. [2022-07-19 22:08:30,528 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))) [2022-07-19 22:08:30,528 INFO L899 garLoopResultBuilder]: For program point L6896-1(lines 6896 6898) no Hoare annotation was computed. [2022-07-19 22:08:30,528 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|)) [2022-07-19 22:08:30,528 INFO L895 garLoopResultBuilder]: At program point bounded_mallocENTRY(lines 6895 6900) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2022-07-19 22:08:30,529 INFO L899 garLoopResultBuilder]: For program point bounded_mallocFINAL(lines 6895 6900) no Hoare annotation was computed. [2022-07-19 22:08:30,529 INFO L899 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6895 6900) no Hoare annotation was computed. [2022-07-19 22:08:30,529 INFO L902 garLoopResultBuilder]: At program point aws_array_eqENTRY(lines 7686 7706) the Hoare annotation is: true [2022-07-19 22:08:30,529 INFO L899 garLoopResultBuilder]: For program point L7690(lines 7687 7706) no Hoare annotation was computed. [2022-07-19 22:08:30,529 INFO L899 garLoopResultBuilder]: For program point aws_array_eqEXIT(lines 7686 7706) no Hoare annotation was computed. [2022-07-19 22:08:30,529 INFO L902 garLoopResultBuilder]: At program point L7688-1(line 7688) the Hoare annotation is: true [2022-07-19 22:08:30,529 INFO L902 garLoopResultBuilder]: At program point L7688(line 7688) the Hoare annotation is: true [2022-07-19 22:08:30,529 INFO L899 garLoopResultBuilder]: For program point aws_array_eqFINAL(lines 7686 7706) no Hoare annotation was computed. [2022-07-19 22:08:30,529 INFO L899 garLoopResultBuilder]: For program point L7699(lines 7699 7703) no Hoare annotation was computed. [2022-07-19 22:08:30,530 INFO L899 garLoopResultBuilder]: For program point nondet_boolFINAL(line 261) no Hoare annotation was computed. [2022-07-19 22:08:30,530 INFO L899 garLoopResultBuilder]: For program point nondet_boolEXIT(line 261) no Hoare annotation was computed. [2022-07-19 22:08:30,530 INFO L902 garLoopResultBuilder]: At program point nondet_boolENTRY(line 261) the Hoare annotation is: true [2022-07-19 22:08:30,530 INFO L899 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2022-07-19 22:08:30,530 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 210 212) the Hoare annotation is: true [2022-07-19 22:08:30,530 INFO L899 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2022-07-19 22:08:30,530 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2022-07-19 22:08:30,530 INFO L899 garLoopResultBuilder]: For program point aws_c_string_is_validFINAL(lines 6263 6273) no Hoare annotation was computed. [2022-07-19 22:08:30,530 INFO L902 garLoopResultBuilder]: At program point aws_c_string_is_validENTRY(lines 6263 6273) the Hoare annotation is: true [2022-07-19 22:08:30,530 INFO L899 garLoopResultBuilder]: For program point aws_c_string_is_validEXIT(lines 6263 6273) no Hoare annotation was computed. [2022-07-19 22:08:30,531 INFO L899 garLoopResultBuilder]: For program point can_fail_allocatorFINAL(lines 6902 6904) no Hoare annotation was computed. [2022-07-19 22:08:30,531 INFO L899 garLoopResultBuilder]: For program point can_fail_allocatorEXIT(lines 6902 6904) no Hoare annotation was computed. [2022-07-19 22:08:30,531 INFO L902 garLoopResultBuilder]: At program point can_fail_allocatorENTRY(lines 6902 6904) the Hoare annotation is: true [2022-07-19 22:08:30,531 INFO L902 garLoopResultBuilder]: At program point aws_string_is_validENTRY(lines 6253 6258) the Hoare annotation is: true [2022-07-19 22:08:30,531 INFO L899 garLoopResultBuilder]: For program point L6257-2(line 6257) no Hoare annotation was computed. [2022-07-19 22:08:30,531 INFO L899 garLoopResultBuilder]: For program point L6257-3(line 6257) no Hoare annotation was computed. [2022-07-19 22:08:30,531 INFO L899 garLoopResultBuilder]: For program point L6257(line 6257) no Hoare annotation was computed. [2022-07-19 22:08:30,531 INFO L899 garLoopResultBuilder]: For program point aws_string_is_validFINAL(lines 6253 6258) no Hoare annotation was computed. [2022-07-19 22:08:30,531 INFO L899 garLoopResultBuilder]: For program point L6257-5(line 6257) no Hoare annotation was computed. [2022-07-19 22:08:30,532 INFO L899 garLoopResultBuilder]: For program point aws_string_is_validEXIT(lines 6253 6258) no Hoare annotation was computed. [2022-07-19 22:08:30,532 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2022-07-19 22:08:30,532 INFO L902 garLoopResultBuilder]: At program point nondet_uint64_tENTRY(line 266) the Hoare annotation is: true [2022-07-19 22:08:30,532 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tFINAL(line 266) no Hoare annotation was computed. [2022-07-19 22:08:30,532 INFO L895 garLoopResultBuilder]: At program point L11324(line 11324) the Hoare annotation is: false [2022-07-19 22:08:30,532 INFO L899 garLoopResultBuilder]: For program point L11324-1(line 11324) no Hoare annotation was computed. [2022-07-19 22:08:30,532 INFO L902 garLoopResultBuilder]: At program point L11328(line 11328) the Hoare annotation is: true [2022-07-19 22:08:30,532 INFO L899 garLoopResultBuilder]: For program point L11060(lines 11060 11064) no Hoare annotation was computed. [2022-07-19 22:08:30,532 INFO L899 garLoopResultBuilder]: For program point L7113-1(lines 7112 7125) no Hoare annotation was computed. [2022-07-19 22:08:30,533 INFO L895 garLoopResultBuilder]: At program point L7113(line 7113) the Hoare annotation is: false [2022-07-19 22:08:30,533 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-19 22:08:30,533 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-19 22:08:30,533 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-19 22:08:30,533 INFO L895 garLoopResultBuilder]: At program point L10805-1(line 10805) the Hoare annotation is: false [2022-07-19 22:08:30,533 INFO L895 garLoopResultBuilder]: At program point L10805(line 10805) the Hoare annotation is: false [2022-07-19 22:08:30,533 INFO L899 garLoopResultBuilder]: For program point L11317(lines 11317 11327) no Hoare annotation was computed. [2022-07-19 22:08:30,533 INFO L899 garLoopResultBuilder]: For program point L10805-2(line 10805) no Hoare annotation was computed. [2022-07-19 22:08:30,533 INFO L899 garLoopResultBuilder]: For program point L11065(lines 11065 11073) no Hoare annotation was computed. [2022-07-19 22:08:30,533 INFO L895 garLoopResultBuilder]: At program point L11074(line 11074) the Hoare annotation is: false [2022-07-19 22:08:30,534 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-19 22:08:30,534 INFO L895 garLoopResultBuilder]: At program point L11074-2(lines 11056 11075) the Hoare annotation is: false [2022-07-19 22:08:30,534 INFO L899 garLoopResultBuilder]: For program point L11074-1(line 11074) no Hoare annotation was computed. [2022-07-19 22:08:30,534 INFO L899 garLoopResultBuilder]: For program point L10806-2(line 10806) no Hoare annotation was computed. [2022-07-19 22:08:30,534 INFO L895 garLoopResultBuilder]: At program point L10810-6(line 10810) the Hoare annotation is: false [2022-07-19 22:08:30,534 INFO L899 garLoopResultBuilder]: For program point L11318-1(line 11318) no Hoare annotation was computed. [2022-07-19 22:08:30,534 INFO L895 garLoopResultBuilder]: At program point L10806-1(line 10806) the Hoare annotation is: false [2022-07-19 22:08:30,534 INFO L899 garLoopResultBuilder]: For program point L11058(line 11058) no Hoare annotation was computed. [2022-07-19 22:08:30,534 INFO L899 garLoopResultBuilder]: For program point L10810-7(line 10810) no Hoare annotation was computed. [2022-07-19 22:08:30,535 INFO L899 garLoopResultBuilder]: For program point L10810-2(line 10810) no Hoare annotation was computed. [2022-07-19 22:08:30,535 INFO L899 garLoopResultBuilder]: For program point L7123-1(line 7123) no Hoare annotation was computed. [2022-07-19 22:08:30,535 INFO L899 garLoopResultBuilder]: For program point L10810-1(line 10810) no Hoare annotation was computed. [2022-07-19 22:08:30,535 INFO L895 garLoopResultBuilder]: At program point L7123(line 7123) the Hoare annotation is: false [2022-07-19 22:08:30,535 INFO L902 garLoopResultBuilder]: At program point L11318(line 11318) the Hoare annotation is: true [2022-07-19 22:08:30,535 INFO L895 garLoopResultBuilder]: At program point L10806(line 10806) the Hoare annotation is: false [2022-07-19 22:08:30,535 INFO L899 garLoopResultBuilder]: For program point L10810-4(line 10810) no Hoare annotation was computed. [2022-07-19 22:08:30,535 INFO L895 garLoopResultBuilder]: At program point L10810-3(line 10810) the Hoare annotation is: false [2022-07-19 22:08:30,535 INFO L899 garLoopResultBuilder]: For program point L7119-1(line 7119) no Hoare annotation was computed. [2022-07-19 22:08:30,536 INFO L899 garLoopResultBuilder]: For program point L11058-5(line 11058) no Hoare annotation was computed. [2022-07-19 22:08:30,536 INFO L895 garLoopResultBuilder]: At program point L7119(line 7119) the Hoare annotation is: false [2022-07-19 22:08:30,536 INFO L895 garLoopResultBuilder]: At program point L11058-2(line 11058) the Hoare annotation is: false [2022-07-19 22:08:30,536 INFO L895 garLoopResultBuilder]: At program point L10810-9(line 10810) the Hoare annotation is: false [2022-07-19 22:08:30,536 INFO L895 garLoopResultBuilder]: At program point L11058-4(line 11058) the Hoare annotation is: false [2022-07-19 22:08:30,536 INFO L899 garLoopResultBuilder]: For program point L11058-3(line 11058) no Hoare annotation was computed. [2022-07-19 22:08:30,536 INFO L899 garLoopResultBuilder]: For program point L11323(lines 11323 11326) no Hoare annotation was computed. [2022-07-19 22:08:30,536 INFO L895 garLoopResultBuilder]: At program point L11319-3(line 11319) the Hoare annotation is: false [2022-07-19 22:08:30,536 INFO L899 garLoopResultBuilder]: For program point L11319-5(line 11319) no Hoare annotation was computed. [2022-07-19 22:08:30,536 INFO L899 garLoopResultBuilder]: For program point L11319-4(line 11319) no Hoare annotation was computed. [2022-07-19 22:08:30,537 INFO L899 garLoopResultBuilder]: For program point L11059(line 11059) no Hoare annotation was computed. [2022-07-19 22:08:30,550 INFO L895 garLoopResultBuilder]: At program point L10803(lines 10803 10811) the Hoare annotation is: false [2022-07-19 22:08:30,550 INFO L899 garLoopResultBuilder]: For program point L11319-1(line 11319) no Hoare annotation was computed. [2022-07-19 22:08:30,551 INFO L895 garLoopResultBuilder]: At program point L11319(line 11319) the Hoare annotation is: false [2022-07-19 22:08:30,551 INFO L899 garLoopResultBuilder]: For program point L7120-1(lines 7120 7122) no Hoare annotation was computed. [2022-07-19 22:08:30,551 INFO L895 garLoopResultBuilder]: At program point L7120(lines 7120 7122) the Hoare annotation is: false [2022-07-19 22:08:30,551 INFO L899 garLoopResultBuilder]: For program point L11059-3(line 11059) no Hoare annotation was computed. [2022-07-19 22:08:30,551 INFO L895 garLoopResultBuilder]: At program point L11059-2(line 11059) the Hoare annotation is: false [2022-07-19 22:08:30,551 INFO L899 garLoopResultBuilder]: For program point L11059-5(line 11059) no Hoare annotation was computed. [2022-07-19 22:08:30,551 INFO L895 garLoopResultBuilder]: At program point L11059-4(line 11059) the Hoare annotation is: false [2022-07-19 22:08:30,551 INFO L899 garLoopResultBuilder]: For program point L7112(lines 7112 7125) no Hoare annotation was computed. [2022-07-19 22:08:30,551 INFO L899 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2022-07-19 22:08:30,552 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 222 224) the Hoare annotation is: true [2022-07-19 22:08:30,552 INFO L899 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2022-07-19 22:08:30,552 INFO L899 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2022-07-19 22:08:30,552 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2022-07-19 22:08:30,552 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2022-07-19 22:08:30,554 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-07-19 22:08:30,556 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 22:08:30,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 10:08:30 BoogieIcfgContainer [2022-07-19 22:08:30,564 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 22:08:30,565 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 22:08:30,565 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 22:08:30,565 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 22:08:30,566 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:08:24" (3/4) ... [2022-07-19 22:08:30,567 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-19 22:08:30,571 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ensure_string_is_allocated_bounded_length [2022-07-19 22:08:30,571 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2022-07-19 22:08:30,571 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_eq [2022-07-19 22:08:30,571 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2022-07-19 22:08:30,572 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2022-07-19 22:08:30,572 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-07-19 22:08:30,572 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-07-19 22:08:30,572 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_c_string_is_valid [2022-07-19 22:08:30,572 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2022-07-19 22:08:30,572 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_is_valid [2022-07-19 22:08:30,577 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2022-07-19 22:08:30,578 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-07-19 22:08:30,578 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-19 22:08:30,579 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-19 22:08:30,597 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) [2022-07-19 22:08:30,685 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-19 22:08:30,685 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 22:08:30,686 INFO L158 Benchmark]: Toolchain (without parser) took 9488.11ms. Allocated memory was 104.9MB in the beginning and 348.1MB in the end (delta: 243.3MB). Free memory was 70.8MB in the beginning and 258.4MB in the end (delta: -187.6MB). Peak memory consumption was 51.8MB. Max. memory is 16.1GB. [2022-07-19 22:08:30,686 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 104.9MB. Free memory is still 63.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 22:08:30,686 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2314.21ms. Allocated memory was 104.9MB in the beginning and 161.5MB in the end (delta: 56.6MB). Free memory was 70.8MB in the beginning and 87.2MB in the end (delta: -16.3MB). Peak memory consumption was 76.7MB. Max. memory is 16.1GB. [2022-07-19 22:08:30,686 INFO L158 Benchmark]: Boogie Procedure Inliner took 142.16ms. Allocated memory is still 161.5MB. Free memory was 87.2MB in the beginning and 75.4MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-19 22:08:30,687 INFO L158 Benchmark]: Boogie Preprocessor took 42.73ms. Allocated memory is still 161.5MB. Free memory was 75.4MB in the beginning and 70.4MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-19 22:08:30,687 INFO L158 Benchmark]: RCFGBuilder took 626.10ms. Allocated memory is still 161.5MB. Free memory was 70.4MB in the beginning and 75.7MB in the end (delta: -5.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-07-19 22:08:30,687 INFO L158 Benchmark]: TraceAbstraction took 6238.41ms. Allocated memory was 161.5MB in the beginning and 348.1MB in the end (delta: 186.6MB). Free memory was 75.3MB in the beginning and 277.3MB in the end (delta: -202.0MB). Peak memory consumption was 133.5MB. Max. memory is 16.1GB. [2022-07-19 22:08:30,687 INFO L158 Benchmark]: Witness Printer took 120.41ms. Allocated memory is still 348.1MB. Free memory was 277.3MB in the beginning and 258.4MB in the end (delta: 18.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-19 22:08:30,688 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 104.9MB. Free memory is still 63.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2314.21ms. Allocated memory was 104.9MB in the beginning and 161.5MB in the end (delta: 56.6MB). Free memory was 70.8MB in the beginning and 87.2MB in the end (delta: -16.3MB). Peak memory consumption was 76.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 142.16ms. Allocated memory is still 161.5MB. Free memory was 87.2MB in the beginning and 75.4MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.73ms. Allocated memory is still 161.5MB. Free memory was 75.4MB in the beginning and 70.4MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 626.10ms. Allocated memory is still 161.5MB. Free memory was 70.4MB in the beginning and 75.7MB in the end (delta: -5.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 6238.41ms. Allocated memory was 161.5MB in the beginning and 348.1MB in the end (delta: 186.6MB). Free memory was 75.3MB in the beginning and 277.3MB in the end (delta: -202.0MB). Peak memory consumption was 133.5MB. Max. memory is 16.1GB. * Witness Printer took 120.41ms. Allocated memory is still 348.1MB. Free memory was 277.3MB in the beginning and 258.4MB in the end (delta: 18.9MB). Peak memory consumption was 14.7MB. 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: 6.2s, OverallIterations: 5, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, 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, 0.9s 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! [2022-07-19 22:08:30,740 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE