./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_get_at_ptr_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_array_list_get_at_ptr_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 e0225ff20a5ba4b5245358ee525cfd28e9ed790cb06824ac87caa63c65a2c856 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 10:47:28,225 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 10:47:28,227 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 10:47:28,265 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 10:47:28,266 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 10:47:28,267 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 10:47:28,268 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 10:47:28,270 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 10:47:28,272 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 10:47:28,275 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 10:47:28,276 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 10:47:28,278 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 10:47:28,278 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 10:47:28,279 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 10:47:28,280 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 10:47:28,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 10:47:28,283 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 10:47:28,285 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 10:47:28,286 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 10:47:28,290 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 10:47:28,291 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 10:47:28,292 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 10:47:28,292 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 10:47:28,293 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 10:47:28,294 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 10:47:28,299 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 10:47:28,299 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 10:47:28,299 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 10:47:28,300 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 10:47:28,300 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 10:47:28,301 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 10:47:28,301 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 10:47:28,302 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 10:47:28,302 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 10:47:28,303 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 10:47:28,304 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 10:47:28,304 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 10:47:28,304 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 10:47:28,305 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 10:47:28,305 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 10:47:28,305 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 10:47:28,307 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 10:47:28,308 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 10:47:28,331 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 10:47:28,331 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 10:47:28,332 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 10:47:28,332 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 10:47:28,332 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 10:47:28,332 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 10:47:28,333 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 10:47:28,333 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 10:47:28,333 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 10:47:28,334 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 10:47:28,334 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 10:47:28,334 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 10:47:28,334 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 10:47:28,334 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 10:47:28,335 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 10:47:28,335 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 10:47:28,335 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 10:47:28,335 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 10:47:28,335 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 10:47:28,335 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 10:47:28,335 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 10:47:28,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 10:47:28,336 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 10:47:28,336 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 10:47:28,336 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 10:47:28,336 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 10:47:28,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 10:47:28,336 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 10:47:28,337 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 10:47:28,337 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 10:47:28,337 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0225ff20a5ba4b5245358ee525cfd28e9ed790cb06824ac87caa63c65a2c856 [2022-07-12 10:47:28,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 10:47:28,558 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 10:47:28,561 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 10:47:28,562 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 10:47:28,563 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 10:47:28,564 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_get_at_ptr_harness.i [2022-07-12 10:47:28,620 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49f75c511/8f6c19064f1c412f928fef26580dd3de/FLAG7822c0513 [2022-07-12 10:47:29,133 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 10:47:29,134 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_get_at_ptr_harness.i [2022-07-12 10:47:29,156 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49f75c511/8f6c19064f1c412f928fef26580dd3de/FLAG7822c0513 [2022-07-12 10:47:29,407 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49f75c511/8f6c19064f1c412f928fef26580dd3de [2022-07-12 10:47:29,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 10:47:29,410 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 10:47:29,412 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 10:47:29,412 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 10:47:29,415 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 10:47:29,415 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 10:47:29" (1/1) ... [2022-07-12 10:47:29,416 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ffcccb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:47:29, skipping insertion in model container [2022-07-12 10:47:29,416 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 10:47:29" (1/1) ... [2022-07-12 10:47:29,421 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 10:47:29,489 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 10:47:29,705 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_array_list_get_at_ptr_harness.i[4499,4512] [2022-07-12 10:47:29,710 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_array_list_get_at_ptr_harness.i[4559,4572] [2022-07-12 10:47:30,147 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-12 10:47:30,202 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:47:30,202 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:47:30,202 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:47:30,204 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:47:30,205 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:47:30,216 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:47:30,217 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:47:30,218 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:47:30,218 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:47:30,219 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:47:30,220 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:47:30,220 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:47:30,220 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:47:30,410 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-12 10:47:30,411 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-12 10:47:30,412 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-12 10:47:30,412 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-12 10:47:30,413 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-12 10:47:30,413 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-12 10:47:30,413 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-12 10:47:30,414 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-12 10:47:30,415 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-12 10:47:30,415 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-12 10:47:30,500 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:47:30,505 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:47:30,544 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:47:30,546 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:47:30,548 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 10:47:30,577 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 10:47:30,596 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_array_list_get_at_ptr_harness.i[4499,4512] [2022-07-12 10:47:30,596 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_array_list_get_at_ptr_harness.i[4559,4572] [2022-07-12 10:47:30,630 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-12 10:47:30,639 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:47:30,642 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:47:30,642 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:47:30,642 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:47:30,643 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:47:30,648 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:47:30,648 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:47:30,648 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:47:30,649 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:47:30,649 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:47:30,649 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:47:30,650 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:47:30,650 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:47:30,677 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-12 10:47:30,678 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-12 10:47:30,679 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-12 10:47:30,679 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-12 10:47:30,680 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-12 10:47:30,680 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-12 10:47:30,680 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-12 10:47:30,681 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-12 10:47:30,681 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-12 10:47:30,681 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-12 10:47:30,694 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:47:30,697 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:47:30,708 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:47:30,708 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 10:47:30,709 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 10:47:30,885 INFO L208 MainTranslator]: Completed translation [2022-07-12 10:47:30,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:47:30 WrapperNode [2022-07-12 10:47:30,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 10:47:30,887 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 10:47:30,887 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 10:47:30,887 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 10:47:30,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:47:30" (1/1) ... [2022-07-12 10:47:30,965 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:47:30" (1/1) ... [2022-07-12 10:47:31,028 INFO L137 Inliner]: procedures = 691, calls = 1679, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 607 [2022-07-12 10:47:31,029 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 10:47:31,030 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 10:47:31,030 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 10:47:31,030 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 10:47:31,036 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:47:30" (1/1) ... [2022-07-12 10:47:31,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:47:30" (1/1) ... [2022-07-12 10:47:31,048 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:47:30" (1/1) ... [2022-07-12 10:47:31,048 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:47:30" (1/1) ... [2022-07-12 10:47:31,080 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:47:30" (1/1) ... [2022-07-12 10:47:31,084 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:47:30" (1/1) ... [2022-07-12 10:47:31,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:47:30" (1/1) ... [2022-07-12 10:47:31,101 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 10:47:31,110 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 10:47:31,110 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 10:47:31,110 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 10:47:31,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:47:30" (1/1) ... [2022-07-12 10:47:31,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 10:47:31,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 10:47:31,142 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 10:47:31,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 10:47:31,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 10:47:31,196 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-07-12 10:47:31,196 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-07-12 10:47:31,196 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-07-12 10:47:31,196 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-07-12 10:47:31,196 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-07-12 10:47:31,196 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-07-12 10:47:31,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 10:47:31,196 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-07-12 10:47:31,196 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-07-12 10:47:31,197 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-12 10:47:31,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-12 10:47:31,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 10:47:31,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 10:47:31,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 10:47:31,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 10:47:31,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 10:47:31,198 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-07-12 10:47:31,198 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-07-12 10:47:31,198 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-07-12 10:47:31,199 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-07-12 10:47:31,199 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-07-12 10:47:31,199 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-07-12 10:47:31,199 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-07-12 10:47:31,199 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-07-12 10:47:31,199 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-07-12 10:47:31,199 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-07-12 10:47:31,199 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 10:47:31,200 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 10:47:31,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 10:47:31,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 10:47:31,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 10:47:31,200 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2022-07-12 10:47:31,200 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2022-07-12 10:47:31,200 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-07-12 10:47:31,201 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-07-12 10:47:31,201 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-07-12 10:47:31,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-07-12 10:47:31,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 10:47:31,202 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-07-12 10:47:31,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-07-12 10:47:31,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 10:47:31,475 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 10:47:31,481 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 10:47:32,102 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 10:47:32,111 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 10:47:32,111 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 10:47:32,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 10:47:32 BoogieIcfgContainer [2022-07-12 10:47:32,113 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 10:47:32,114 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 10:47:32,115 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 10:47:32,117 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 10:47:32,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 10:47:29" (1/3) ... [2022-07-12 10:47:32,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@714b0d00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 10:47:32, skipping insertion in model container [2022-07-12 10:47:32,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:47:30" (2/3) ... [2022-07-12 10:47:32,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@714b0d00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 10:47:32, skipping insertion in model container [2022-07-12 10:47:32,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 10:47:32" (3/3) ... [2022-07-12 10:47:32,119 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_get_at_ptr_harness.i [2022-07-12 10:47:32,129 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 10:47:32,130 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 10:47:32,190 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 10:47:32,202 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@14fa16f0, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2b0263b4 [2022-07-12 10:47:32,203 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 10:47:32,206 INFO L276 IsEmpty]: Start isEmpty. Operand has 159 states, 95 states have (on average 1.2) internal successors, (114), 96 states have internal predecessors, (114), 47 states have call successors, (47), 15 states have call predecessors, (47), 15 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2022-07-12 10:47:32,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-12 10:47:32,218 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 10:47:32,219 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:47:32,219 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 10:47:32,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:47:32,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1219885948, now seen corresponding path program 1 times [2022-07-12 10:47:32,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:47:32,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996980476] [2022-07-12 10:47:32,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:47:32,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:47:32,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:47:32,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 10:47:32,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:47:32,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 10:47:32,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:47:32,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 10:47:32,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:47:32,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 10:47:32,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:47:32,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 10:47:32,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:47:32,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-12 10:47:32,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:47:32,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 10:47:32,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:47:32,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 10:47:32,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:47:32,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 10:47:32,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:47:32,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-12 10:47:32,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:47:32,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 10:47:32,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:47:32,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-12 10:47:32,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:47:32,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-12 10:47:32,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:47:32,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 10:47:32,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:47:32,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 10:47:32,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:47:32,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-12 10:47:32,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:47:32,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 10:47:32,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:47:32,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-12 10:47:32,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:47:32,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-12 10:47:32,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:47:32,728 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2022-07-12 10:47:32,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:47:32,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996980476] [2022-07-12 10:47:32,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996980476] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:47:32,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:47:32,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 10:47:32,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336702185] [2022-07-12 10:47:32,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:47:32,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 10:47:32,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:47:32,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 10:47:32,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-07-12 10:47:32,750 INFO L87 Difference]: Start difference. First operand has 159 states, 95 states have (on average 1.2) internal successors, (114), 96 states have internal predecessors, (114), 47 states have call successors, (47), 15 states have call predecessors, (47), 15 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (22), 5 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-12 10:47:33,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 10:47:33,083 INFO L93 Difference]: Finished difference Result 342 states and 499 transitions. [2022-07-12 10:47:33,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 10:47:33,085 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (22), 5 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 116 [2022-07-12 10:47:33,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 10:47:33,098 INFO L225 Difference]: With dead ends: 342 [2022-07-12 10:47:33,098 INFO L226 Difference]: Without dead ends: 181 [2022-07-12 10:47:33,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-07-12 10:47:33,104 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 150 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 10:47:33,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 262 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 10:47:33,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-07-12 10:47:33,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 150. [2022-07-12 10:47:33,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 88 states have (on average 1.1590909090909092) internal successors, (102), 89 states have internal predecessors, (102), 47 states have call successors, (47), 15 states have call predecessors, (47), 14 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-07-12 10:47:33,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 194 transitions. [2022-07-12 10:47:33,138 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 194 transitions. Word has length 116 [2022-07-12 10:47:33,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 10:47:33,138 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 194 transitions. [2022-07-12 10:47:33,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (22), 5 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-12 10:47:33,139 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 194 transitions. [2022-07-12 10:47:33,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-12 10:47:33,141 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 10:47:33,141 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:47:33,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 10:47:33,142 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 10:47:33,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:47:33,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1423042578, now seen corresponding path program 1 times [2022-07-12 10:47:33,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:47:33,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219970792] [2022-07-12 10:47:33,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:47:33,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:47:33,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:47:33,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 10:47:33,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:47:33,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 10:47:33,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:47:33,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 10:47:33,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:47:33,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 10:47:33,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:47:33,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 10:47:33,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:47:33,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-12 10:47:33,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:47:33,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 10:47:33,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:47:33,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 10:47:33,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:47:33,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 10:47:33,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:47:33,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-12 10:47:33,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:47:33,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 10:47:33,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:47:33,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-12 10:47:33,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:47:33,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-12 10:47:33,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:47:33,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 10:47:33,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:47:33,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 10:47:33,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:47:33,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-12 10:47:33,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:47:33,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 10:47:33,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:47:33,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-12 10:47:33,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:47:33,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-12 10:47:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:47:33,405 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2022-07-12 10:47:33,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:47:33,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219970792] [2022-07-12 10:47:33,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219970792] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 10:47:33,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [321810800] [2022-07-12 10:47:33,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:47:33,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 10:47:33,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 10:47:33,447 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 10:47:33,462 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-12 10:47:33,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:47:33,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 2239 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-12 10:47:33,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 10:47:33,917 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-07-12 10:47:33,917 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 10:47:33,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [321810800] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:47:33,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 10:47:33,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2022-07-12 10:47:33,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862926802] [2022-07-12 10:47:33,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:47:33,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 10:47:33,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:47:33,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 10:47:33,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-07-12 10:47:33,919 INFO L87 Difference]: Start difference. First operand 150 states and 194 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-12 10:47:34,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 10:47:34,065 INFO L93 Difference]: Finished difference Result 273 states and 359 transitions. [2022-07-12 10:47:34,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 10:47:34,066 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 116 [2022-07-12 10:47:34,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 10:47:34,067 INFO L225 Difference]: With dead ends: 273 [2022-07-12 10:47:34,067 INFO L226 Difference]: Without dead ends: 152 [2022-07-12 10:47:34,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2022-07-12 10:47:34,069 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 199 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 10:47:34,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 562 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 10:47:34,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2022-07-12 10:47:34,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2022-07-12 10:47:34,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 89 states have (on average 1.1573033707865168) internal successors, (103), 91 states have internal predecessors, (103), 47 states have call successors, (47), 15 states have call predecessors, (47), 15 states have return successors, (50), 45 states have call predecessors, (50), 45 states have call successors, (50) [2022-07-12 10:47:34,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 200 transitions. [2022-07-12 10:47:34,081 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 200 transitions. Word has length 116 [2022-07-12 10:47:34,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 10:47:34,082 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 200 transitions. [2022-07-12 10:47:34,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-12 10:47:34,082 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 200 transitions. [2022-07-12 10:47:34,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-07-12 10:47:34,084 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 10:47:34,084 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:47:34,108 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-12 10:47:34,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 10:47:34,306 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 10:47:34,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:47:34,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1335874116, now seen corresponding path program 1 times [2022-07-12 10:47:34,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:47:34,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554927438] [2022-07-12 10:47:34,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:47:34,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:47:34,408 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 10:47:34,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [372406710] [2022-07-12 10:47:34,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:47:34,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 10:47:34,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 10:47:34,417 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 10:47:34,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-12 10:47:34,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:47:34,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 2521 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-12 10:47:34,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 10:47:34,821 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-07-12 10:47:34,821 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 10:47:34,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:47:34,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554927438] [2022-07-12 10:47:34,821 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 10:47:34,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [372406710] [2022-07-12 10:47:34,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [372406710] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:47:34,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:47:34,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 10:47:34,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64854813] [2022-07-12 10:47:34,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:47:34,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 10:47:34,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:47:34,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 10:47:34,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-12 10:47:34,824 INFO L87 Difference]: Start difference. First operand 152 states and 200 transitions. Second operand has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2022-07-12 10:47:35,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 10:47:35,075 INFO L93 Difference]: Finished difference Result 243 states and 320 transitions. [2022-07-12 10:47:35,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 10:47:35,075 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) Word has length 146 [2022-07-12 10:47:35,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 10:47:35,077 INFO L225 Difference]: With dead ends: 243 [2022-07-12 10:47:35,077 INFO L226 Difference]: Without dead ends: 152 [2022-07-12 10:47:35,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-07-12 10:47:35,078 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 199 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 10:47:35,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 784 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 10:47:35,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2022-07-12 10:47:35,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2022-07-12 10:47:35,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 89 states have (on average 1.1573033707865168) internal successors, (103), 91 states have internal predecessors, (103), 47 states have call successors, (47), 15 states have call predecessors, (47), 15 states have return successors, (47), 45 states have call predecessors, (47), 45 states have call successors, (47) [2022-07-12 10:47:35,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 197 transitions. [2022-07-12 10:47:35,090 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 197 transitions. Word has length 146 [2022-07-12 10:47:35,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 10:47:35,090 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 197 transitions. [2022-07-12 10:47:35,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2022-07-12 10:47:35,091 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 197 transitions. [2022-07-12 10:47:35,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-07-12 10:47:35,092 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 10:47:35,093 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:47:35,129 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-07-12 10:47:35,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-07-12 10:47:35,330 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 10:47:35,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:47:35,331 INFO L85 PathProgramCache]: Analyzing trace with hash 39623736, now seen corresponding path program 2 times [2022-07-12 10:47:35,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:47:35,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464062090] [2022-07-12 10:47:35,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:47:35,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:47:35,378 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 10:47:35,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1463493771] [2022-07-12 10:47:35,379 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 10:47:35,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 10:47:35,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 10:47:35,380 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 10:47:35,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-12 10:47:35,761 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-12 10:47:35,761 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 10:47:35,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 2662 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 10:47:35,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 10:47:35,849 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2022-07-12 10:47:35,849 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 10:47:35,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:47:35,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464062090] [2022-07-12 10:47:35,849 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 10:47:35,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1463493771] [2022-07-12 10:47:35,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1463493771] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:47:35,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:47:35,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 10:47:35,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838694202] [2022-07-12 10:47:35,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:47:35,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 10:47:35,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:47:35,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 10:47:35,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-12 10:47:35,859 INFO L87 Difference]: Start difference. First operand 152 states and 197 transitions. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 8 states have internal predecessors, (54), 5 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2022-07-12 10:47:36,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 10:47:36,225 INFO L93 Difference]: Finished difference Result 234 states and 300 transitions. [2022-07-12 10:47:36,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 10:47:36,226 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 8 states have internal predecessors, (54), 5 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) Word has length 161 [2022-07-12 10:47:36,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 10:47:36,227 INFO L225 Difference]: With dead ends: 234 [2022-07-12 10:47:36,227 INFO L226 Difference]: Without dead ends: 150 [2022-07-12 10:47:36,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2022-07-12 10:47:36,228 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 202 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 990 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 10:47:36,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 990 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 10:47:36,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-07-12 10:47:36,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-07-12 10:47:36,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 88 states have (on average 1.1477272727272727) internal successors, (101), 89 states have internal predecessors, (101), 47 states have call successors, (47), 15 states have call predecessors, (47), 14 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-07-12 10:47:36,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 193 transitions. [2022-07-12 10:47:36,237 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 193 transitions. Word has length 161 [2022-07-12 10:47:36,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 10:47:36,237 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 193 transitions. [2022-07-12 10:47:36,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 8 states have internal predecessors, (54), 5 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2022-07-12 10:47:36,237 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 193 transitions. [2022-07-12 10:47:36,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-07-12 10:47:36,239 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 10:47:36,239 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:47:36,261 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-12 10:47:36,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 10:47:36,459 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 10:47:36,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:47:36,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1225339362, now seen corresponding path program 1 times [2022-07-12 10:47:36,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:47:36,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134065401] [2022-07-12 10:47:36,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:47:36,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:47:36,504 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 10:47:36,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2052933924] [2022-07-12 10:47:36,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:47:36,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 10:47:36,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 10:47:36,506 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 10:47:36,507 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-12 10:47:36,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:47:36,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 2944 conjuncts, 40 conjunts are in the unsatisfiable core [2022-07-12 10:47:36,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 10:47:37,024 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 206 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2022-07-12 10:47:37,024 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 10:47:37,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:47:37,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134065401] [2022-07-12 10:47:37,024 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 10:47:37,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2052933924] [2022-07-12 10:47:37,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2052933924] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:47:37,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:47:37,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 10:47:37,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793103759] [2022-07-12 10:47:37,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:47:37,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 10:47:37,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:47:37,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 10:47:37,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-12 10:47:37,026 INFO L87 Difference]: Start difference. First operand 150 states and 193 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 7 states have internal predecessors, (70), 3 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-12 10:47:37,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 10:47:37,112 INFO L93 Difference]: Finished difference Result 255 states and 329 transitions. [2022-07-12 10:47:37,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 10:47:37,113 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 7 states have internal predecessors, (70), 3 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) Word has length 191 [2022-07-12 10:47:37,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 10:47:37,114 INFO L225 Difference]: With dead ends: 255 [2022-07-12 10:47:37,114 INFO L226 Difference]: Without dead ends: 150 [2022-07-12 10:47:37,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-12 10:47:37,115 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 5 mSDsluCounter, 1043 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1223 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 10:47:37,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1223 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 10:47:37,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-07-12 10:47:37,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-07-12 10:47:37,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 88 states have (on average 1.1363636363636365) internal successors, (100), 89 states have internal predecessors, (100), 47 states have call successors, (47), 15 states have call predecessors, (47), 14 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-07-12 10:47:37,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 192 transitions. [2022-07-12 10:47:37,123 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 192 transitions. Word has length 191 [2022-07-12 10:47:37,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 10:47:37,123 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 192 transitions. [2022-07-12 10:47:37,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 7 states have internal predecessors, (70), 3 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-12 10:47:37,124 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 192 transitions. [2022-07-12 10:47:37,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-07-12 10:47:37,125 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 10:47:37,125 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:47:37,161 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-12 10:47:37,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 10:47:37,346 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 10:47:37,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:47:37,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1128384140, now seen corresponding path program 1 times [2022-07-12 10:47:37,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:47:37,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595553218] [2022-07-12 10:47:37,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:47:37,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:47:37,393 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 10:47:37,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [799622869] [2022-07-12 10:47:37,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:47:37,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 10:47:37,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 10:47:37,395 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 10:47:37,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-12 10:47:38,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:47:38,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 2979 conjuncts, 329 conjunts are in the unsatisfiable core [2022-07-12 10:47:38,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 10:47:38,991 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-12 10:47:39,127 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-07-12 10:47:39,153 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-07-12 10:47:39,300 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-12 10:47:39,457 INFO L356 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-07-12 10:47:39,458 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 37 [2022-07-12 10:47:39,506 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-07-12 10:47:39,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 10:47:39,574 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-07-12 10:47:39,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 10:47:39,667 INFO L356 Elim1Store]: treesize reduction 98, result has 24.6 percent of original size [2022-07-12 10:47:39,668 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 34 treesize of output 53 [2022-07-12 10:47:39,895 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((|v___CPROVER_overflow_mult_~#c~1.base_34| Int) (v_ArrVal_578 Int)) (and (= (select |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_34|) 0) (= |c_#valid| (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_34| v_ArrVal_578)))) (exists ((v_ArrVal_587 (Array Int Int))) (= (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_587) |c_#memory_int|))) is different from true [2022-07-12 10:47:40,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 10:47:40,235 INFO L356 Elim1Store]: treesize reduction 129, result has 28.7 percent of original size [2022-07-12 10:47:40,235 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 51 treesize of output 85 [2022-07-12 10:47:40,244 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-12 10:47:41,865 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_590 Int)) (= (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| (store (select |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_590)) |c_#memory_int|)) is different from true [2022-07-12 10:47:56,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 10:47:56,549 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-07-12 10:47:56,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 10:47:56,567 INFO L356 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2022-07-12 10:47:56,567 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 25 [2022-07-12 10:49:18,985 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-12 10:49:18,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 10:49:18,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 10:49:18,988 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 128 [2022-07-12 10:49:19,069 INFO L356 Elim1Store]: treesize reduction 39, result has 35.0 percent of original size [2022-07-12 10:49:19,070 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 65 treesize of output 66 [2022-07-12 10:49:19,081 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2022-07-12 10:49:19,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 10:49:19,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 10:49:19,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 10:49:19,106 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 36 [2022-07-12 10:50:42,395 WARN L233 SmtUtils]: Spent 10.55s on a formula simplification that was a NOOP. DAG size: 49 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-12 10:50:48,691 INFO L356 Elim1Store]: treesize reduction 72, result has 28.7 percent of original size [2022-07-12 10:50:48,691 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 8 new quantified variables, introduced 10 case distinctions, treesize of input 238 treesize of output 364 [2022-07-12 10:50:49,402 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 82 proven. 227 refuted. 2 times theorem prover too weak. 38 trivial. 21 not checked. [2022-07-12 10:50:49,403 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 10:50:59,262 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((|v_aws_array_list_is_valid_~#required_size~0.base_13| Int)) (let ((.cse2 (+ c_aws_array_list_length_~list.offset 24))) (let ((.cse0 (let ((.cse3 (select |c_#memory_int| c_aws_array_list_length_~list.base))) (* (select .cse3 (+ c_aws_array_list_length_~list.offset 16)) (select .cse3 .cse2))))) (let ((.cse1 (select (store |c_#memory_int| |v_aws_array_list_is_valid_~#required_size~0.base_13| (store (select |c_#memory_int| |v_aws_array_list_is_valid_~#required_size~0.base_13|) 0 .cse0)) c_aws_array_list_length_~list.base))) (or (not (<= (mod .cse0 18446744073709551616) (mod (select .cse1 (+ c_aws_array_list_length_~list.offset 8)) 18446744073709551616))) (not (= (mod (select .cse1 .cse2) 18446744073709551616) 0))))))) (forall ((|v_aws_array_list_is_valid_~#required_size~0.base_13| Int)) (let ((.cse4 (let ((.cse5 (select |c_#memory_int| c_aws_array_list_length_~list.base))) (* (select .cse5 (+ c_aws_array_list_length_~list.offset 16)) (select .cse5 (+ c_aws_array_list_length_~list.offset 24)))))) (<= (mod .cse4 18446744073709551616) (mod (select (select (store |c_#memory_int| |v_aws_array_list_is_valid_~#required_size~0.base_13| (store (select |c_#memory_int| |v_aws_array_list_is_valid_~#required_size~0.base_13|) 0 .cse4)) c_aws_array_list_length_~list.base) (+ c_aws_array_list_length_~list.offset 8)) 18446744073709551616))))) is different from false [2022-07-12 10:50:59,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:50:59,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595553218] [2022-07-12 10:50:59,285 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 10:50:59,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [799622869] [2022-07-12 10:50:59,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [799622869] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 10:50:59,286 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-12 10:50:59,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64] total 64 [2022-07-12 10:50:59,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321865554] [2022-07-12 10:50:59,286 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-12 10:50:59,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-07-12 10:50:59,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:50:59,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-07-12 10:50:59,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=208, Invalid=3886, Unknown=78, NotChecked=384, Total=4556 [2022-07-12 10:50:59,288 INFO L87 Difference]: Start difference. First operand 150 states and 192 transitions. Second operand has 64 states, 54 states have (on average 2.185185185185185) internal successors, (118), 51 states have internal predecessors, (118), 19 states have call successors, (31), 12 states have call predecessors, (31), 20 states have return successors, (29), 19 states have call predecessors, (29), 18 states have call successors, (29) [2022-07-12 10:51:48,119 WARN L233 SmtUtils]: Spent 8.73s on a formula simplification. DAG size of input: 101 DAG size of output: 71 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-12 10:52:01,151 WARN L233 SmtUtils]: Spent 8.62s on a formula simplification. DAG size of input: 102 DAG size of output: 72 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)