./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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_capacity_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 d58b6cbe3dbcae2c6bf4b35286cc82fa39ed49d435b7e41930b97647d699f843 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 22:27:52,594 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 22:27:52,597 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 22:27:52,640 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 22:27:52,640 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 22:27:52,642 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 22:27:52,643 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 22:27:52,646 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 22:27:52,648 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 22:27:52,654 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 22:27:52,655 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 22:27:52,657 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 22:27:52,657 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 22:27:52,659 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 22:27:52,660 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 22:27:52,664 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 22:27:52,664 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 22:27:52,666 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 22:27:52,667 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 22:27:52,674 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 22:27:52,676 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 22:27:52,677 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 22:27:52,678 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 22:27:52,678 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 22:27:52,680 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 22:27:52,683 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 22:27:52,683 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 22:27:52,683 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 22:27:52,684 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 22:27:52,685 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 22:27:52,686 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 22:27:52,686 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 22:27:52,687 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 22:27:52,688 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 22:27:52,689 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 22:27:52,689 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 22:27:52,690 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 22:27:52,690 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 22:27:52,690 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 22:27:52,691 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 22:27:52,691 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 22:27:52,693 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 22:27:52,695 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-13 22:27:52,726 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 22:27:52,727 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 22:27:52,727 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 22:27:52,727 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 22:27:52,728 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 22:27:52,728 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 22:27:52,729 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 22:27:52,729 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 22:27:52,729 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 22:27:52,730 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 22:27:52,730 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 22:27:52,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 22:27:52,730 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 22:27:52,731 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 22:27:52,731 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 22:27:52,731 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 22:27:52,731 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 22:27:52,731 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 22:27:52,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 22:27:52,733 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 22:27:52,733 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 22:27:52,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 22:27:52,733 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 22:27:52,734 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 22:27:52,734 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 22:27:52,734 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 22:27:52,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 22:27:52,734 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 22:27:52,734 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 22:27:52,735 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 22:27:52,735 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d58b6cbe3dbcae2c6bf4b35286cc82fa39ed49d435b7e41930b97647d699f843 [2022-07-13 22:27:52,955 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 22:27:52,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 22:27:52,984 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 22:27:52,985 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 22:27:52,985 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 22:27:52,986 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i [2022-07-13 22:27:53,054 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a79eb63e2/252d8bb33c074f4c8bd876ef9dbf1448/FLAG786c6894f [2022-07-13 22:27:53,673 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 22:27:53,674 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i [2022-07-13 22:27:53,706 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a79eb63e2/252d8bb33c074f4c8bd876ef9dbf1448/FLAG786c6894f [2022-07-13 22:27:53,810 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a79eb63e2/252d8bb33c074f4c8bd876ef9dbf1448 [2022-07-13 22:27:53,812 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 22:27:53,813 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 22:27:53,814 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 22:27:53,814 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 22:27:53,817 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 22:27:53,817 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 10:27:53" (1/1) ... [2022-07-13 22:27:53,818 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@340d77dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:27:53, skipping insertion in model container [2022-07-13 22:27:53,818 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 10:27:53" (1/1) ... [2022-07-13 22:27:53,824 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 22:27:53,912 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 22:27:54,168 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_capacity_harness.i[4497,4510] [2022-07-13 22:27:54,175 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_capacity_harness.i[4557,4570] [2022-07-13 22:27:54,740 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-13 22:27:54,796 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:27:54,797 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:27:54,797 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:27:54,798 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:27:54,799 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:27:54,809 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:27:54,810 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:27:54,811 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:27:54,812 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:27:54,813 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:27:54,814 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:27:54,814 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:27:54,815 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:27:55,014 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-13 22:27:55,015 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-13 22:27:55,016 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-13 22:27:55,017 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-13 22:27:55,019 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-13 22:27:55,019 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-13 22:27:55,020 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-13 22:27:55,021 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-13 22:27:55,021 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-13 22:27:55,022 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-13 22:27:55,133 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:27:55,138 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:27:55,224 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 22:27:55,264 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 22:27:55,286 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_capacity_harness.i[4497,4510] [2022-07-13 22:27:55,287 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_capacity_harness.i[4557,4570] [2022-07-13 22:27:55,373 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-13 22:27:55,392 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:27:55,394 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:27:55,404 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:27:55,404 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:27:55,405 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:27:55,412 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:27:55,413 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:27:55,414 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:27:55,414 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:27:55,415 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:27:55,416 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:27:55,419 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:27:55,440 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:27:55,480 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-13 22:27:55,481 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-13 22:27:55,482 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-13 22:27:55,482 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-13 22:27:55,483 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-13 22:27:55,484 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-13 22:27:55,484 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-13 22:27:55,485 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-13 22:27:55,485 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-13 22:27:55,486 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-13 22:27:55,531 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:27:55,538 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:27:55,561 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 22:27:55,745 INFO L208 MainTranslator]: Completed translation [2022-07-13 22:27:55,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:27:55 WrapperNode [2022-07-13 22:27:55,746 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 22:27:55,747 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 22:27:55,747 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 22:27:55,747 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 22:27:55,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:27:55" (1/1) ... [2022-07-13 22:27:55,857 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:27:55" (1/1) ... [2022-07-13 22:27:55,948 INFO L137 Inliner]: procedures = 690, calls = 1687, calls flagged for inlining = 53, calls inlined = 9, statements flattened = 616 [2022-07-13 22:27:55,950 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 22:27:55,951 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 22:27:55,951 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 22:27:55,951 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 22:27:55,958 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:27:55" (1/1) ... [2022-07-13 22:27:55,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:27:55" (1/1) ... [2022-07-13 22:27:55,969 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:27:55" (1/1) ... [2022-07-13 22:27:55,970 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:27:55" (1/1) ... [2022-07-13 22:27:56,009 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:27:55" (1/1) ... [2022-07-13 22:27:56,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:27:55" (1/1) ... [2022-07-13 22:27:56,016 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:27:55" (1/1) ... [2022-07-13 22:27:56,024 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 22:27:56,025 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 22:27:56,025 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 22:27:56,025 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 22:27:56,026 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:27:55" (1/1) ... [2022-07-13 22:27:56,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 22:27:56,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:27:56,069 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) [2022-07-13 22:27:56,087 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 [2022-07-13 22:27:56,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 22:27:56,106 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-07-13 22:27:56,107 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-07-13 22:27:56,108 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-07-13 22:27:56,108 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-07-13 22:27:56,108 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-07-13 22:27:56,108 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-07-13 22:27:56,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 22:27:56,109 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-07-13 22:27:56,109 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-07-13 22:27:56,109 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-13 22:27:56,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-13 22:27:56,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-13 22:27:56,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 22:27:56,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-13 22:27:56,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 22:27:56,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 22:27:56,110 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-07-13 22:27:56,110 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-07-13 22:27:56,111 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-07-13 22:27:56,111 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-07-13 22:27:56,111 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-07-13 22:27:56,112 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-07-13 22:27:56,112 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-13 22:27:56,112 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-13 22:27:56,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 22:27:56,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-13 22:27:56,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-13 22:27:56,112 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-07-13 22:27:56,112 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-07-13 22:27:56,113 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-07-13 22:27:56,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-07-13 22:27:56,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 22:27:56,113 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-07-13 22:27:56,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-07-13 22:27:56,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 22:27:56,383 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 22:27:56,385 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 22:27:57,037 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 22:27:57,046 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 22:27:57,047 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 22:27:57,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 10:27:57 BoogieIcfgContainer [2022-07-13 22:27:57,060 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 22:27:57,062 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 22:27:57,063 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 22:27:57,065 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 22:27:57,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 10:27:53" (1/3) ... [2022-07-13 22:27:57,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1034e7e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 10:27:57, skipping insertion in model container [2022-07-13 22:27:57,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:27:55" (2/3) ... [2022-07-13 22:27:57,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1034e7e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 10:27:57, skipping insertion in model container [2022-07-13 22:27:57,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 10:27:57" (3/3) ... [2022-07-13 22:27:57,069 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_capacity_harness.i [2022-07-13 22:27:57,081 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 22:27:57,082 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 22:27:57,138 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 22:27:57,143 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@4a6eefbd, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@760b521f [2022-07-13 22:27:57,144 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 22:27:57,148 INFO L276 IsEmpty]: Start isEmpty. Operand has 122 states, 77 states have (on average 1.1948051948051948) internal successors, (92), 78 states have internal predecessors, (92), 31 states have call successors, (31), 12 states have call predecessors, (31), 12 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2022-07-13 22:27:57,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-07-13 22:27:57,159 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:27:57,160 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:27:57,160 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:27:57,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:27:57,167 INFO L85 PathProgramCache]: Analyzing trace with hash -817942521, now seen corresponding path program 1 times [2022-07-13 22:27:57,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:27:57,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535405503] [2022-07-13 22:27:57,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:27:57,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:27:57,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:27:57,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 22:27:57,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:27:57,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 22:27:57,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:27:57,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 22:27:57,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:27:57,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 22:27:57,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:27:57,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 22:27:57,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:27:57,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 22:27:57,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:27:57,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-13 22:27:57,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:27:57,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 22:27:57,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:27:57,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 22:27:57,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:27:57,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 22:27:57,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:27:57,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-13 22:27:57,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:27:57,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-13 22:27:57,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:27:57,962 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-07-13 22:27:57,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:27:57,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535405503] [2022-07-13 22:27:57,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535405503] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:27:57,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:27:57,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 22:27:57,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086978317] [2022-07-13 22:27:57,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:27:57,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 22:27:57,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:27:57,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 22:27:58,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-13 22:27:58,003 INFO L87 Difference]: Start difference. First operand has 122 states, 77 states have (on average 1.1948051948051948) internal successors, (92), 78 states have internal predecessors, (92), 31 states have call successors, (31), 12 states have call predecessors, (31), 12 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-13 22:27:58,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:27:58,397 INFO L93 Difference]: Finished difference Result 239 states and 325 transitions. [2022-07-13 22:27:58,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 22:27:58,400 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 74 [2022-07-13 22:27:58,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:27:58,408 INFO L225 Difference]: With dead ends: 239 [2022-07-13 22:27:58,409 INFO L226 Difference]: Without dead ends: 119 [2022-07-13 22:27:58,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-13 22:27:58,415 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 33 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 22:27:58,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 194 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 22:27:58,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-07-13 22:27:58,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 117. [2022-07-13 22:27:58,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 73 states have (on average 1.178082191780822) internal successors, (86), 74 states have internal predecessors, (86), 31 states have call successors, (31), 12 states have call predecessors, (31), 12 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-07-13 22:27:58,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 147 transitions. [2022-07-13 22:27:58,457 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 147 transitions. Word has length 74 [2022-07-13 22:27:58,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:27:58,458 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 147 transitions. [2022-07-13 22:27:58,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-13 22:27:58,458 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 147 transitions. [2022-07-13 22:27:58,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-07-13 22:27:58,461 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:27:58,461 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:27:58,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 22:27:58,462 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:27:58,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:27:58,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1310312895, now seen corresponding path program 1 times [2022-07-13 22:27:58,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:27:58,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714416611] [2022-07-13 22:27:58,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:27:58,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:27:58,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:27:58,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 22:27:58,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:27:58,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 22:27:58,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:27:58,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 22:27:58,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:27:58,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 22:27:58,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:27:58,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 22:27:58,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:27:58,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 22:27:58,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:27:58,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-13 22:27:58,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:27:58,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 22:27:58,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:27:58,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 22:27:58,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:27:58,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 22:27:58,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:27:58,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-13 22:27:58,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:27:58,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-13 22:27:58,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:27:58,773 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-07-13 22:27:58,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:27:58,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714416611] [2022-07-13 22:27:58,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714416611] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 22:27:58,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051916340] [2022-07-13 22:27:58,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:27:58,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:27:58,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:27:58,779 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) [2022-07-13 22:27:58,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-13 22:27:59,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:27:59,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 2056 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-13 22:27:59,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:27:59,318 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-13 22:27:59,318 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:27:59,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051916340] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:27:59,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 22:27:59,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2022-07-13 22:27:59,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957758619] [2022-07-13 22:27:59,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:27:59,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 22:27:59,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:27:59,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 22:27:59,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-07-13 22:27:59,322 INFO L87 Difference]: Start difference. First operand 117 states and 147 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-13 22:27:59,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:27:59,509 INFO L93 Difference]: Finished difference Result 199 states and 254 transitions. [2022-07-13 22:27:59,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 22:27:59,510 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 74 [2022-07-13 22:27:59,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:27:59,512 INFO L225 Difference]: With dead ends: 199 [2022-07-13 22:27:59,512 INFO L226 Difference]: Without dead ends: 119 [2022-07-13 22:27:59,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-07-13 22:27:59,514 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 158 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 22:27:59,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 401 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 22:27:59,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-07-13 22:27:59,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2022-07-13 22:27:59,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 74 states have (on average 1.1756756756756757) internal successors, (87), 76 states have internal predecessors, (87), 31 states have call successors, (31), 12 states have call predecessors, (31), 13 states have return successors, (32), 30 states have call predecessors, (32), 30 states have call successors, (32) [2022-07-13 22:27:59,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 150 transitions. [2022-07-13 22:27:59,529 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 150 transitions. Word has length 74 [2022-07-13 22:27:59,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:27:59,530 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 150 transitions. [2022-07-13 22:27:59,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-13 22:27:59,531 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 150 transitions. [2022-07-13 22:27:59,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-07-13 22:27:59,533 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:27:59,533 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-07-13 22:27:59,564 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-13 22:27:59,759 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 [2022-07-13 22:27:59,760 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:27:59,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:27:59,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1377860737, now seen corresponding path program 1 times [2022-07-13 22:27:59,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:27:59,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804263555] [2022-07-13 22:27:59,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:27:59,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:27:59,821 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:27:59,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1683018058] [2022-07-13 22:27:59,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:27:59,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:27:59,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:27:59,824 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) [2022-07-13 22:27:59,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-13 22:28:00,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:28:00,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 2197 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-13 22:28:00,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:28:00,302 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-13 22:28:00,303 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:28:00,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:28:00,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804263555] [2022-07-13 22:28:00,303 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:28:00,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1683018058] [2022-07-13 22:28:00,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1683018058] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:28:00,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:28:00,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 22:28:00,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167097361] [2022-07-13 22:28:00,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:28:00,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 22:28:00,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:28:00,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 22:28:00,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 22:28:00,308 INFO L87 Difference]: Start difference. First operand 119 states and 150 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 4 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2022-07-13 22:28:00,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:28:00,519 INFO L93 Difference]: Finished difference Result 189 states and 236 transitions. [2022-07-13 22:28:00,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 22:28:00,520 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 4 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 89 [2022-07-13 22:28:00,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:28:00,525 INFO L225 Difference]: With dead ends: 189 [2022-07-13 22:28:00,525 INFO L226 Difference]: Without dead ends: 117 [2022-07-13 22:28:00,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-07-13 22:28:00,531 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 170 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 22:28:00,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 487 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 22:28:00,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2022-07-13 22:28:00,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2022-07-13 22:28:00,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 73 states have (on average 1.1643835616438356) internal successors, (85), 74 states have internal predecessors, (85), 31 states have call successors, (31), 12 states have call predecessors, (31), 12 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-07-13 22:28:00,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 146 transitions. [2022-07-13 22:28:00,549 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 146 transitions. Word has length 89 [2022-07-13 22:28:00,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:28:00,550 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 146 transitions. [2022-07-13 22:28:00,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 4 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2022-07-13 22:28:00,550 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 146 transitions. [2022-07-13 22:28:00,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-07-13 22:28:00,559 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:28:00,559 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:28:00,592 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-13 22:28:00,775 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 [2022-07-13 22:28:00,776 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:28:00,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:28:00,776 INFO L85 PathProgramCache]: Analyzing trace with hash -355007149, now seen corresponding path program 1 times [2022-07-13 22:28:00,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:28:00,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540383990] [2022-07-13 22:28:00,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:28:00,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:28:00,851 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:28:00,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [713830832] [2022-07-13 22:28:00,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:28:00,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:28:00,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:28:00,853 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) [2022-07-13 22:28:00,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-13 22:28:01,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:28:01,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 2479 conjuncts, 256 conjunts are in the unsatisfiable core [2022-07-13 22:28:01,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:28:01,468 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 [2022-07-13 22:28:01,827 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 9 treesize of output 3 [2022-07-13 22:28:01,831 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 9 treesize of output 3 [2022-07-13 22:28:02,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 22:28:02,231 INFO L356 Elim1Store]: treesize reduction 44, result has 47.0 percent of original size [2022-07-13 22:28:02,232 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 48 [2022-07-13 22:29:18,900 INFO L356 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-07-13 22:29:18,901 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 [2022-07-13 22:30:02,673 INFO L356 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-07-13 22:30:02,674 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 29 treesize of output 37 [2022-07-13 22:30:58,035 INFO L356 Elim1Store]: treesize reduction 91, result has 30.0 percent of original size [2022-07-13 22:30:58,035 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 46 treesize of output 69 [2022-07-13 22:30:58,061 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-13 22:30:58,061 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 112 treesize of output 101 [2022-07-13 22:30:58,127 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 75 treesize of output 67 [2022-07-13 22:32:01,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 22:32:01,921 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 161 treesize of output 97