./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_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_priority_queue_remove_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 1ebada516f0ccae5e55b91f6e0fe5802f70171054dc79c047f46877ad506c65e --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 11:14:51,599 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 11:14:51,604 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 11:14:51,650 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 11:14:51,651 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 11:14:51,652 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 11:14:51,654 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 11:14:51,657 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 11:14:51,659 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 11:14:51,661 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 11:14:51,661 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 11:14:51,662 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 11:14:51,662 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 11:14:51,663 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 11:14:51,664 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 11:14:51,671 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 11:14:51,672 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 11:14:51,674 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 11:14:51,676 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 11:14:51,680 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 11:14:51,682 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 11:14:51,683 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 11:14:51,684 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 11:14:51,685 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 11:14:51,686 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 11:14:51,689 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 11:14:51,690 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 11:14:51,690 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 11:14:51,691 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 11:14:51,691 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 11:14:51,692 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 11:14:51,693 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 11:14:51,694 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 11:14:51,695 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 11:14:51,696 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 11:14:51,697 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 11:14:51,697 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 11:14:51,698 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 11:14:51,698 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 11:14:51,698 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 11:14:51,699 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 11:14:51,701 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 11:14:51,701 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 11:14:51,731 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 11:14:51,732 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 11:14:51,732 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 11:14:51,732 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 11:14:51,733 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 11:14:51,733 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 11:14:51,734 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 11:14:51,734 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 11:14:51,734 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 11:14:51,735 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 11:14:51,735 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 11:14:51,736 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 11:14:51,736 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 11:14:51,736 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 11:14:51,736 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 11:14:51,736 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 11:14:51,736 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 11:14:51,737 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 11:14:51,737 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 11:14:51,738 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 11:14:51,738 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 11:14:51,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 11:14:51,739 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 11:14:51,739 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 11:14:51,739 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 11:14:51,739 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 11:14:51,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 11:14:51,740 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 11:14:51,740 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 11:14:51,740 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 11:14:51,741 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ebada516f0ccae5e55b91f6e0fe5802f70171054dc79c047f46877ad506c65e [2022-07-12 11:14:51,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 11:14:51,999 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 11:14:52,002 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 11:14:52,003 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 11:14:52,003 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 11:14:52,006 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i [2022-07-12 11:14:52,066 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c3255727/f853f2ed462f4233a8a98f479563eaac/FLAG8a8b0899a [2022-07-12 11:14:52,754 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 11:14:52,755 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i [2022-07-12 11:14:52,783 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c3255727/f853f2ed462f4233a8a98f479563eaac/FLAG8a8b0899a [2022-07-12 11:14:52,870 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c3255727/f853f2ed462f4233a8a98f479563eaac [2022-07-12 11:14:52,872 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 11:14:52,874 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 11:14:52,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 11:14:52,876 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 11:14:52,879 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 11:14:52,879 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 11:14:52" (1/1) ... [2022-07-12 11:14:52,880 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b976bac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:14:52, skipping insertion in model container [2022-07-12 11:14:52,881 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 11:14:52" (1/1) ... [2022-07-12 11:14:52,885 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 11:14:52,984 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 11:14:53,218 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_priority_queue_remove_harness.i[4499,4512] [2022-07-12 11:14:53,227 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_priority_queue_remove_harness.i[4559,4572] [2022-07-12 11:14:53,851 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:53,858 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:53,859 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:53,860 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:53,862 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:53,873 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:53,877 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:53,882 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:53,885 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:53,890 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:53,892 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:53,893 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:53,893 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,172 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-12 11:14:54,174 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-12 11:14:54,175 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-12 11:14:54,176 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-12 11:14:54,177 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-12 11:14:54,178 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-12 11:14:54,178 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-12 11:14:54,179 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-12 11:14:54,179 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-12 11:14:54,180 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-12 11:14:54,303 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-12 11:14:54,345 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,355 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,437 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,438 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,439 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,440 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,440 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,440 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,441 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,443 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,443 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,444 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,444 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,444 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,444 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,451 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,454 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,454 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,454 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,457 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,457 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,463 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,464 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,464 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,478 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,478 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,479 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,483 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 11:14:54,529 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 11:14:54,545 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_priority_queue_remove_harness.i[4499,4512] [2022-07-12 11:14:54,545 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_priority_queue_remove_harness.i[4559,4572] [2022-07-12 11:14:54,602 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,604 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,605 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,605 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,606 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,614 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,615 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,615 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,615 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,616 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,617 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,618 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,618 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,666 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-12 11:14:54,667 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-12 11:14:54,668 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-12 11:14:54,671 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-12 11:14:54,672 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-12 11:14:54,672 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-12 11:14:54,673 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-12 11:14:54,673 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-12 11:14:54,674 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-12 11:14:54,674 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-12 11:14:54,699 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-12 11:14:54,717 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,721 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,745 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,746 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,747 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,747 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,747 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,748 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,748 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,748 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,749 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,749 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,750 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,750 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,750 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,752 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,752 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,752 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,754 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,755 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,756 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,763 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,764 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,764 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,795 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,796 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,796 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:14:54,801 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 11:14:54,981 INFO L208 MainTranslator]: Completed translation [2022-07-12 11:14:54,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:14:54 WrapperNode [2022-07-12 11:14:54,983 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 11:14:54,984 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 11:14:54,985 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 11:14:54,985 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 11:14:54,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:14:54" (1/1) ... [2022-07-12 11:14:55,099 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:14:54" (1/1) ... [2022-07-12 11:14:55,169 INFO L137 Inliner]: procedures = 697, calls = 1921, calls flagged for inlining = 60, calls inlined = 15, statements flattened = 1060 [2022-07-12 11:14:55,170 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 11:14:55,171 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 11:14:55,171 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 11:14:55,171 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 11:14:55,180 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:14:54" (1/1) ... [2022-07-12 11:14:55,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:14:54" (1/1) ... [2022-07-12 11:14:55,196 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:14:54" (1/1) ... [2022-07-12 11:14:55,196 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:14:54" (1/1) ... [2022-07-12 11:14:55,233 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:14:54" (1/1) ... [2022-07-12 11:14:55,240 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:14:54" (1/1) ... [2022-07-12 11:14:55,250 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:14:54" (1/1) ... [2022-07-12 11:14:55,266 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 11:14:55,267 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 11:14:55,267 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 11:14:55,267 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 11:14:55,268 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:14:54" (1/1) ... [2022-07-12 11:14:55,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 11:14:55,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:14:55,317 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 11:14:55,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 11:14:55,361 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2022-07-12 11:14:55,362 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2022-07-12 11:14:55,362 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-07-12 11:14:55,362 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-07-12 11:14:55,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 11:14:55,362 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-07-12 11:14:55,363 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-07-12 11:14:55,363 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-07-12 11:14:55,363 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-07-12 11:14:55,364 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-07-12 11:14:55,364 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-07-12 11:14:55,364 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2022-07-12 11:14:55,364 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2022-07-12 11:14:55,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-12 11:14:55,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 11:14:55,367 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-07-12 11:14:55,368 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-07-12 11:14:55,368 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-12 11:14:55,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-12 11:14:55,369 INFO L130 BoogieDeclarations]: Found specification of procedure s_remove_node [2022-07-12 11:14:55,369 INFO L138 BoogieDeclarations]: Found implementation of procedure s_remove_node [2022-07-12 11:14:55,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 11:14:55,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 11:14:55,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 11:14:55,375 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2022-07-12 11:14:55,375 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2022-07-12 11:14:55,376 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-07-12 11:14:55,376 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-07-12 11:14:55,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 11:14:55,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 11:14:55,376 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-07-12 11:14:55,376 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-07-12 11:14:55,376 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-07-12 11:14:55,377 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-07-12 11:14:55,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 11:14:55,377 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-07-12 11:14:55,377 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-07-12 11:14:55,377 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2022-07-12 11:14:55,377 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2022-07-12 11:14:55,377 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-07-12 11:14:55,377 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-07-12 11:14:55,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 11:14:55,378 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 11:14:55,378 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 11:14:55,378 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 11:14:55,378 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-07-12 11:14:55,378 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-07-12 11:14:55,378 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2022-07-12 11:14:55,378 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2022-07-12 11:14:55,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 11:14:55,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 11:14:55,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 11:14:55,379 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2022-07-12 11:14:55,379 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2022-07-12 11:14:55,379 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-07-12 11:14:55,379 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-07-12 11:14:55,379 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-07-12 11:14:55,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-07-12 11:14:55,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 11:14:55,380 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-07-12 11:14:55,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-07-12 11:14:55,380 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2022-07-12 11:14:55,380 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2022-07-12 11:14:55,380 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-12 11:14:55,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-12 11:14:55,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 11:14:55,381 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at [2022-07-12 11:14:55,381 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at [2022-07-12 11:14:55,768 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 11:14:55,771 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 11:14:57,977 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 11:14:57,987 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 11:14:57,988 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2022-07-12 11:14:57,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 11:14:57 BoogieIcfgContainer [2022-07-12 11:14:57,991 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 11:14:57,993 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 11:14:57,993 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 11:14:57,998 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 11:14:57,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 11:14:52" (1/3) ... [2022-07-12 11:14:57,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@475c177 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 11:14:57, skipping insertion in model container [2022-07-12 11:14:57,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:14:54" (2/3) ... [2022-07-12 11:14:57,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@475c177 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 11:14:57, skipping insertion in model container [2022-07-12 11:14:57,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 11:14:57" (3/3) ... [2022-07-12 11:14:58,001 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_remove_harness.i [2022-07-12 11:14:58,017 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 11:14:58,017 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-12 11:14:58,106 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 11:14:58,116 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@8988c51, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@68d4b0 [2022-07-12 11:14:58,116 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-12 11:14:58,124 INFO L276 IsEmpty]: Start isEmpty. Operand has 460 states, 270 states have (on average 1.2703703703703704) internal successors, (343), 275 states have internal predecessors, (343), 160 states have call successors, (160), 27 states have call predecessors, (160), 27 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) [2022-07-12 11:14:58,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-07-12 11:14:58,152 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:14:58,153 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:14:58,154 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:14:58,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:14:58,161 INFO L85 PathProgramCache]: Analyzing trace with hash 207530193, now seen corresponding path program 1 times [2022-07-12 11:14:58,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:14:58,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078462586] [2022-07-12 11:14:58,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:14:58,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:14:58,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:14:58,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:14:58,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:14:58,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 11:14:58,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:14:58,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 11:14:58,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:14:58,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 11:14:58,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:14:58,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 11:14:58,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:14:58,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 11:14:58,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:14:58,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 11:14:58,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:14:58,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 11:14:58,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:14:58,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 11:14:58,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:14:58,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 11:14:58,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:14:58,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-12 11:14:58,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:14:58,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 11:14:58,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:14:58,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 11:14:58,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:14:58,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-12 11:14:58,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:14:58,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 11:14:58,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:14:58,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 11:14:58,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:14:58,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-12 11:14:58,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:14:58,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-12 11:14:58,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:14:59,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-12 11:14:59,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:14:59,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-12 11:14:59,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:14:59,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-12 11:14:59,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:14:59,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-12 11:14:59,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:14:59,039 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2022-07-12 11:14:59,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:14:59,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078462586] [2022-07-12 11:14:59,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078462586] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:14:59,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:14:59,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 11:14:59,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965925733] [2022-07-12 11:14:59,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:14:59,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 11:14:59,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:14:59,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 11:14:59,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-07-12 11:14:59,074 INFO L87 Difference]: Start difference. First operand has 460 states, 270 states have (on average 1.2703703703703704) internal successors, (343), 275 states have internal predecessors, (343), 160 states have call successors, (160), 27 states have call predecessors, (160), 27 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-12 11:15:01,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:01,492 INFO L93 Difference]: Finished difference Result 1349 states and 2508 transitions. [2022-07-12 11:15:01,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 11:15:01,495 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 141 [2022-07-12 11:15:01,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:01,517 INFO L225 Difference]: With dead ends: 1349 [2022-07-12 11:15:01,517 INFO L226 Difference]: Without dead ends: 895 [2022-07-12 11:15:01,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-12 11:15:01,534 INFO L413 NwaCegarLoop]: 857 mSDtfsCounter, 535 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 926 mSolverCounterSat, 686 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 651 SdHoareTripleChecker+Valid, 1558 SdHoareTripleChecker+Invalid, 1612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 686 IncrementalHoareTripleChecker+Valid, 926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:01,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [651 Valid, 1558 Invalid, 1612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [686 Valid, 926 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-12 11:15:01,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2022-07-12 11:15:01,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 453. [2022-07-12 11:15:01,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 265 states have (on average 1.2339622641509433) internal successors, (327), 268 states have internal predecessors, (327), 160 states have call successors, (160), 27 states have call predecessors, (160), 26 states have return successors, (158), 158 states have call predecessors, (158), 158 states have call successors, (158) [2022-07-12 11:15:01,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 645 transitions. [2022-07-12 11:15:01,653 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 645 transitions. Word has length 141 [2022-07-12 11:15:01,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:01,653 INFO L495 AbstractCegarLoop]: Abstraction has 453 states and 645 transitions. [2022-07-12 11:15:01,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-12 11:15:01,654 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 645 transitions. [2022-07-12 11:15:01,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-07-12 11:15:01,657 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:01,657 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:15:01,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 11:15:01,658 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:01,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:01,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1080700984, now seen corresponding path program 1 times [2022-07-12 11:15:01,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:01,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611279135] [2022-07-12 11:15:01,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:01,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:01,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:01,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:15:01,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:01,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 11:15:01,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:01,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 11:15:01,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:01,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 11:15:01,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:01,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 11:15:01,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:01,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 11:15:01,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:01,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 11:15:01,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:01,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 11:15:01,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:01,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 11:15:01,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:02,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 11:15:02,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:02,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-12 11:15:02,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:02,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 11:15:02,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:02,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 11:15:02,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:02,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-12 11:15:02,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:02,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 11:15:02,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:02,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 11:15:02,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:02,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-12 11:15:02,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:02,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-12 11:15:02,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:02,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-12 11:15:02,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:02,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-12 11:15:02,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:02,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-12 11:15:02,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:02,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-12 11:15:02,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:02,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-12 11:15:02,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:02,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 11:15:02,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:02,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-12 11:15:02,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:02,144 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2022-07-12 11:15:02,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:02,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611279135] [2022-07-12 11:15:02,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611279135] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 11:15:02,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [155514971] [2022-07-12 11:15:02,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:02,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:02,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:02,151 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:15:02,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-12 11:15:02,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:02,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 2501 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-12 11:15:02,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:02,810 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-07-12 11:15:02,810 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:02,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [155514971] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:02,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 11:15:02,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2022-07-12 11:15:02,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543782889] [2022-07-12 11:15:02,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:02,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 11:15:02,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:02,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 11:15:02,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-07-12 11:15:02,814 INFO L87 Difference]: Start difference. First operand 453 states and 645 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-07-12 11:15:04,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:04,550 INFO L93 Difference]: Finished difference Result 872 states and 1259 transitions. [2022-07-12 11:15:04,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 11:15:04,551 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 156 [2022-07-12 11:15:04,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:04,556 INFO L225 Difference]: With dead ends: 872 [2022-07-12 11:15:04,556 INFO L226 Difference]: Without dead ends: 455 [2022-07-12 11:15:04,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 199 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 11:15:04,560 INFO L413 NwaCegarLoop]: 581 mSDtfsCounter, 665 mSDsluCounter, 1651 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 2232 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:04,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [687 Valid, 2232 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-12 11:15:04,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2022-07-12 11:15:04,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 455. [2022-07-12 11:15:04,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 266 states have (on average 1.2330827067669172) internal successors, (328), 270 states have internal predecessors, (328), 160 states have call successors, (160), 27 states have call predecessors, (160), 27 states have return successors, (171), 158 states have call predecessors, (171), 158 states have call successors, (171) [2022-07-12 11:15:04,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 659 transitions. [2022-07-12 11:15:04,593 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 659 transitions. Word has length 156 [2022-07-12 11:15:04,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:04,594 INFO L495 AbstractCegarLoop]: Abstraction has 455 states and 659 transitions. [2022-07-12 11:15:04,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-07-12 11:15:04,595 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 659 transitions. [2022-07-12 11:15:04,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-07-12 11:15:04,596 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:04,597 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:15:04,629 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 11:15:04,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:04,815 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:04,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:04,816 INFO L85 PathProgramCache]: Analyzing trace with hash 651465952, now seen corresponding path program 1 times [2022-07-12 11:15:04,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:04,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239171250] [2022-07-12 11:15:04,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:04,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:04,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:05,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:15:05,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:05,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 11:15:05,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:05,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 11:15:05,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:05,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 11:15:05,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:05,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 11:15:05,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:05,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 11:15:05,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:05,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 11:15:05,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:05,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 11:15:05,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:05,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 11:15:05,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:05,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 11:15:05,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:05,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:15:05,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:05,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 11:15:05,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:05,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 11:15:05,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:05,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 11:15:05,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:05,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-12 11:15:05,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:05,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 11:15:05,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:05,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 11:15:05,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:05,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-12 11:15:05,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:05,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-12 11:15:05,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:05,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 11:15:05,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:05,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-12 11:15:05,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:05,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-12 11:15:05,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:05,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-12 11:15:05,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:05,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-12 11:15:05,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:05,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-12 11:15:05,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:05,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-12 11:15:05,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:05,330 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2022-07-12 11:15:05,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:05,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239171250] [2022-07-12 11:15:05,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239171250] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 11:15:05,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1075368620] [2022-07-12 11:15:05,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:05,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:05,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:05,332 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:15:05,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-12 11:15:05,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:05,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 2551 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-12 11:15:05,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:06,032 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-07-12 11:15:06,032 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:06,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1075368620] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:06,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 11:15:06,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2022-07-12 11:15:06,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867058468] [2022-07-12 11:15:06,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:06,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 11:15:06,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:06,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 11:15:06,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-07-12 11:15:06,035 INFO L87 Difference]: Start difference. First operand 455 states and 659 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2022-07-12 11:15:09,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:09,261 INFO L93 Difference]: Finished difference Result 895 states and 1330 transitions. [2022-07-12 11:15:09,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 11:15:09,262 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 164 [2022-07-12 11:15:09,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:09,267 INFO L225 Difference]: With dead ends: 895 [2022-07-12 11:15:09,267 INFO L226 Difference]: Without dead ends: 476 [2022-07-12 11:15:09,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2022-07-12 11:15:09,271 INFO L413 NwaCegarLoop]: 577 mSDtfsCounter, 691 mSDsluCounter, 2717 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 3294 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:09,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [741 Valid, 3294 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-12 11:15:09,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2022-07-12 11:15:09,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 474. [2022-07-12 11:15:09,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 282 states have (on average 1.2411347517730495) internal successors, (350), 286 states have internal predecessors, (350), 162 states have call successors, (162), 27 states have call predecessors, (162), 28 states have return successors, (190), 161 states have call predecessors, (190), 160 states have call successors, (190) [2022-07-12 11:15:09,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 702 transitions. [2022-07-12 11:15:09,305 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 702 transitions. Word has length 164 [2022-07-12 11:15:09,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:09,306 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 702 transitions. [2022-07-12 11:15:09,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2022-07-12 11:15:09,306 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 702 transitions. [2022-07-12 11:15:09,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-07-12 11:15:09,308 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:09,309 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:15:09,341 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:09,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-07-12 11:15:09,524 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:09,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:09,524 INFO L85 PathProgramCache]: Analyzing trace with hash 706817890, now seen corresponding path program 1 times [2022-07-12 11:15:09,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:09,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483018126] [2022-07-12 11:15:09,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:09,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:09,635 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:09,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1238249894] [2022-07-12 11:15:09,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:09,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:09,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:09,637 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:15:09,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-12 11:15:10,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:10,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 2692 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-12 11:15:10,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:10,326 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-07-12 11:15:10,327 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:10,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:10,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483018126] [2022-07-12 11:15:10,327 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:10,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1238249894] [2022-07-12 11:15:10,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1238249894] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:10,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:15:10,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 11:15:10,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133848376] [2022-07-12 11:15:10,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:10,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 11:15:10,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:10,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 11:15:10,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 11:15:10,330 INFO L87 Difference]: Start difference. First operand 474 states and 702 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-07-12 11:15:12,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:12,564 INFO L93 Difference]: Finished difference Result 920 states and 1403 transitions. [2022-07-12 11:15:12,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 11:15:12,565 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 179 [2022-07-12 11:15:12,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:12,569 INFO L225 Difference]: With dead ends: 920 [2022-07-12 11:15:12,569 INFO L226 Difference]: Without dead ends: 482 [2022-07-12 11:15:12,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-07-12 11:15:12,574 INFO L413 NwaCegarLoop]: 575 mSDtfsCounter, 689 mSDsluCounter, 2174 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 2749 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:12,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 2749 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-12 11:15:12,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2022-07-12 11:15:12,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 474. [2022-07-12 11:15:12,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 282 states have (on average 1.2411347517730495) internal successors, (350), 286 states have internal predecessors, (350), 162 states have call successors, (162), 27 states have call predecessors, (162), 28 states have return successors, (190), 161 states have call predecessors, (190), 160 states have call successors, (190) [2022-07-12 11:15:12,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 702 transitions. [2022-07-12 11:15:12,604 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 702 transitions. Word has length 179 [2022-07-12 11:15:12,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:12,605 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 702 transitions. [2022-07-12 11:15:12,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-07-12 11:15:12,605 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 702 transitions. [2022-07-12 11:15:12,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-07-12 11:15:12,607 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:12,607 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:15:12,642 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:12,835 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 11:15:12,836 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:12,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:12,836 INFO L85 PathProgramCache]: Analyzing trace with hash -548515061, now seen corresponding path program 1 times [2022-07-12 11:15:12,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:12,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103901700] [2022-07-12 11:15:12,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:12,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:12,944 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:12,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [825606842] [2022-07-12 11:15:12,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:12,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:12,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:12,946 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 11:15:12,959 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 11:15:13,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:13,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 2764 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 11:15:13,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:13,616 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-07-12 11:15:13,617 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:13,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:13,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103901700] [2022-07-12 11:15:13,618 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:13,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825606842] [2022-07-12 11:15:13,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [825606842] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:13,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:15:13,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 11:15:13,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888655121] [2022-07-12 11:15:13,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:13,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 11:15:13,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:13,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 11:15:13,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 11:15:13,620 INFO L87 Difference]: Start difference. First operand 474 states and 702 transitions. Second operand has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2022-07-12 11:15:16,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:16,891 INFO L93 Difference]: Finished difference Result 930 states and 1407 transitions. [2022-07-12 11:15:16,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 11:15:16,892 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) Word has length 195 [2022-07-12 11:15:16,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:16,897 INFO L225 Difference]: With dead ends: 930 [2022-07-12 11:15:16,897 INFO L226 Difference]: Without dead ends: 492 [2022-07-12 11:15:16,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-07-12 11:15:16,901 INFO L413 NwaCegarLoop]: 554 mSDtfsCounter, 754 mSDsluCounter, 3152 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 3706 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:16,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [804 Valid, 3706 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 768 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-12 11:15:16,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2022-07-12 11:15:16,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 474. [2022-07-12 11:15:16,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 282 states have (on average 1.2411347517730495) internal successors, (350), 286 states have internal predecessors, (350), 162 states have call successors, (162), 27 states have call predecessors, (162), 28 states have return successors, (190), 161 states have call predecessors, (190), 160 states have call successors, (190) [2022-07-12 11:15:16,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 702 transitions. [2022-07-12 11:15:16,927 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 702 transitions. Word has length 195 [2022-07-12 11:15:16,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:16,928 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 702 transitions. [2022-07-12 11:15:16,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2022-07-12 11:15:16,928 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 702 transitions. [2022-07-12 11:15:16,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-07-12 11:15:16,931 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:16,931 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:15:16,965 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 11:15:17,159 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 11:15:17,159 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:17,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:17,160 INFO L85 PathProgramCache]: Analyzing trace with hash -2018600789, now seen corresponding path program 2 times [2022-07-12 11:15:17,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:17,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965110042] [2022-07-12 11:15:17,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:17,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:17,270 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:17,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [863344003] [2022-07-12 11:15:17,274 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 11:15:17,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:17,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:17,275 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 11:15:17,277 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 11:15:18,059 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-12 11:15:18,060 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 11:15:18,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 2905 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-12 11:15:18,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:18,172 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-07-12 11:15:18,172 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:18,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:18,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965110042] [2022-07-12 11:15:18,172 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:18,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [863344003] [2022-07-12 11:15:18,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [863344003] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:18,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:15:18,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 11:15:18,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352584128] [2022-07-12 11:15:18,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:18,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 11:15:18,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:18,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 11:15:18,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 11:15:18,175 INFO L87 Difference]: Start difference. First operand 474 states and 702 transitions. Second operand has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 7 states have internal predecessors, (86), 4 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2022-07-12 11:15:19,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:19,706 INFO L93 Difference]: Finished difference Result 878 states and 1321 transitions. [2022-07-12 11:15:19,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 11:15:19,707 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 7 states have internal predecessors, (86), 4 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) Word has length 210 [2022-07-12 11:15:19,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:19,711 INFO L225 Difference]: With dead ends: 878 [2022-07-12 11:15:19,711 INFO L226 Difference]: Without dead ends: 476 [2022-07-12 11:15:19,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-07-12 11:15:19,715 INFO L413 NwaCegarLoop]: 579 mSDtfsCounter, 682 mSDsluCounter, 2192 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 2771 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:19,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [704 Valid, 2771 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-12 11:15:19,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2022-07-12 11:15:19,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 476. [2022-07-12 11:15:19,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 283 states have (on average 1.2402826855123674) internal successors, (351), 288 states have internal predecessors, (351), 162 states have call successors, (162), 27 states have call predecessors, (162), 29 states have return successors, (201), 161 states have call predecessors, (201), 160 states have call successors, (201) [2022-07-12 11:15:19,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 714 transitions. [2022-07-12 11:15:19,739 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 714 transitions. Word has length 210 [2022-07-12 11:15:19,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:19,740 INFO L495 AbstractCegarLoop]: Abstraction has 476 states and 714 transitions. [2022-07-12 11:15:19,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 7 states have internal predecessors, (86), 4 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2022-07-12 11:15:19,740 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 714 transitions. [2022-07-12 11:15:19,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-07-12 11:15:19,743 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:19,743 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:15:19,773 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:19,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:19,964 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:19,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:19,964 INFO L85 PathProgramCache]: Analyzing trace with hash -914550263, now seen corresponding path program 1 times [2022-07-12 11:15:19,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:19,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470834742] [2022-07-12 11:15:19,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:19,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:20,056 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:20,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2044409143] [2022-07-12 11:15:20,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:20,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:20,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:20,059 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:15:20,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-12 11:15:20,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:20,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 3096 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 11:15:20,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:20,787 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-07-12 11:15:20,788 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:20,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:20,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470834742] [2022-07-12 11:15:20,788 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:20,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044409143] [2022-07-12 11:15:20,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2044409143] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:20,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:15:20,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 11:15:20,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185171007] [2022-07-12 11:15:20,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:20,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 11:15:20,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:20,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 11:15:20,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-12 11:15:20,790 INFO L87 Difference]: Start difference. First operand 476 states and 714 transitions. Second operand has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 8 states have internal predecessors, (89), 5 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) [2022-07-12 11:15:23,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:23,490 INFO L93 Difference]: Finished difference Result 883 states and 1346 transitions. [2022-07-12 11:15:23,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 11:15:23,491 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 8 states have internal predecessors, (89), 5 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) Word has length 233 [2022-07-12 11:15:23,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:23,495 INFO L225 Difference]: With dead ends: 883 [2022-07-12 11:15:23,496 INFO L226 Difference]: Without dead ends: 479 [2022-07-12 11:15:23,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2022-07-12 11:15:23,499 INFO L413 NwaCegarLoop]: 573 mSDtfsCounter, 706 mSDsluCounter, 2703 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 3276 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:23,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [728 Valid, 3276 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-12 11:15:23,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2022-07-12 11:15:23,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 477. [2022-07-12 11:15:23,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 284 states have (on average 1.2394366197183098) internal successors, (352), 289 states have internal predecessors, (352), 162 states have call successors, (162), 27 states have call predecessors, (162), 29 states have return successors, (201), 161 states have call predecessors, (201), 160 states have call successors, (201) [2022-07-12 11:15:23,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 715 transitions. [2022-07-12 11:15:23,525 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 715 transitions. Word has length 233 [2022-07-12 11:15:23,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:23,525 INFO L495 AbstractCegarLoop]: Abstraction has 477 states and 715 transitions. [2022-07-12 11:15:23,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 8 states have internal predecessors, (89), 5 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) [2022-07-12 11:15:23,526 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 715 transitions. [2022-07-12 11:15:23,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-07-12 11:15:23,528 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:23,529 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-12 11:15:23,563 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:23,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:23,756 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:23,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:23,756 INFO L85 PathProgramCache]: Analyzing trace with hash -2024605444, now seen corresponding path program 1 times [2022-07-12 11:15:23,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:23,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717648388] [2022-07-12 11:15:23,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:23,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:23,838 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:23,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1889402791] [2022-07-12 11:15:23,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:23,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:23,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:23,840 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:15:23,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-12 11:15:24,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:24,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 3027 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 11:15:24,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:24,578 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 177 proven. 3 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-07-12 11:15:24,578 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 11:15:24,882 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 25 proven. 9 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2022-07-12 11:15:24,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:24,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717648388] [2022-07-12 11:15:24,883 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:24,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1889402791] [2022-07-12 11:15:24,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1889402791] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 11:15:24,883 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 11:15:24,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2022-07-12 11:15:24,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604855340] [2022-07-12 11:15:24,883 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 11:15:24,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-12 11:15:24,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:24,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-12 11:15:24,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-07-12 11:15:24,885 INFO L87 Difference]: Start difference. First operand 477 states and 715 transitions. Second operand has 14 states, 12 states have (on average 10.333333333333334) internal successors, (124), 14 states have internal predecessors, (124), 9 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (48), 5 states have call predecessors, (48), 9 states have call successors, (48) [2022-07-12 11:15:27,345 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:15:29,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:29,581 INFO L93 Difference]: Finished difference Result 901 states and 1380 transitions. [2022-07-12 11:15:29,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 11:15:29,582 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 10.333333333333334) internal successors, (124), 14 states have internal predecessors, (124), 9 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (48), 5 states have call predecessors, (48), 9 states have call successors, (48) Word has length 234 [2022-07-12 11:15:29,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:29,586 INFO L225 Difference]: With dead ends: 901 [2022-07-12 11:15:29,587 INFO L226 Difference]: Without dead ends: 496 [2022-07-12 11:15:29,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 457 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2022-07-12 11:15:29,591 INFO L413 NwaCegarLoop]: 558 mSDtfsCounter, 1170 mSDsluCounter, 3186 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 457 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1220 SdHoareTripleChecker+Valid, 3744 SdHoareTripleChecker+Invalid, 1074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 457 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:29,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1220 Valid, 3744 Invalid, 1074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [457 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-07-12 11:15:29,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2022-07-12 11:15:29,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 490. [2022-07-12 11:15:29,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 296 states have (on average 1.2466216216216217) internal successors, (369), 300 states have internal predecessors, (369), 163 states have call successors, (163), 27 states have call predecessors, (163), 29 states have return successors, (202), 163 states have call predecessors, (202), 161 states have call successors, (202) [2022-07-12 11:15:29,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 734 transitions. [2022-07-12 11:15:29,661 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 734 transitions. Word has length 234 [2022-07-12 11:15:29,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:29,662 INFO L495 AbstractCegarLoop]: Abstraction has 490 states and 734 transitions. [2022-07-12 11:15:29,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 10.333333333333334) internal successors, (124), 14 states have internal predecessors, (124), 9 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (48), 5 states have call predecessors, (48), 9 states have call successors, (48) [2022-07-12 11:15:29,662 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 734 transitions. [2022-07-12 11:15:29,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-07-12 11:15:29,666 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:29,666 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-12 11:15:29,699 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:29,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:29,881 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:29,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:29,881 INFO L85 PathProgramCache]: Analyzing trace with hash -729173346, now seen corresponding path program 2 times [2022-07-12 11:15:29,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:29,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465935626] [2022-07-12 11:15:29,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:29,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:29,963 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:29,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1761889438] [2022-07-12 11:15:29,964 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 11:15:29,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:29,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:29,965 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:15:29,974 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-12 11:15:30,726 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-12 11:15:30,726 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 11:15:30,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 3309 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 11:15:30,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:30,913 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2022-07-12 11:15:30,913 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:30,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:30,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465935626] [2022-07-12 11:15:30,913 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:30,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761889438] [2022-07-12 11:15:30,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1761889438] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:30,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:15:30,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 11:15:30,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192741849] [2022-07-12 11:15:30,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:30,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 11:15:30,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:30,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 11:15:30,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-12 11:15:30,915 INFO L87 Difference]: Start difference. First operand 490 states and 734 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 5 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) [2022-07-12 11:15:32,982 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:15:33,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:33,256 INFO L93 Difference]: Finished difference Result 912 states and 1378 transitions. [2022-07-12 11:15:33,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 11:15:33,257 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 5 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) Word has length 264 [2022-07-12 11:15:33,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:33,261 INFO L225 Difference]: With dead ends: 912 [2022-07-12 11:15:33,261 INFO L226 Difference]: Without dead ends: 502 [2022-07-12 11:15:33,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-07-12 11:15:33,265 INFO L413 NwaCegarLoop]: 607 mSDtfsCounter, 77 mSDsluCounter, 3457 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 30 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 4064 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:33,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 4064 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 342 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-07-12 11:15:33,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2022-07-12 11:15:33,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 502. [2022-07-12 11:15:33,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 302 states have (on average 1.2450331125827814) internal successors, (376), 306 states have internal predecessors, (376), 168 states have call successors, (168), 28 states have call predecessors, (168), 30 states have return successors, (207), 168 states have call predecessors, (207), 166 states have call successors, (207) [2022-07-12 11:15:33,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 751 transitions. [2022-07-12 11:15:33,316 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 751 transitions. Word has length 264 [2022-07-12 11:15:33,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:33,320 INFO L495 AbstractCegarLoop]: Abstraction has 502 states and 751 transitions. [2022-07-12 11:15:33,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 5 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) [2022-07-12 11:15:33,320 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 751 transitions. [2022-07-12 11:15:33,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2022-07-12 11:15:33,323 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:33,324 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-12 11:15:33,359 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:33,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-07-12 11:15:33,548 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:33,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:33,548 INFO L85 PathProgramCache]: Analyzing trace with hash 256824554, now seen corresponding path program 3 times [2022-07-12 11:15:33,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:33,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513640501] [2022-07-12 11:15:33,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:33,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:33,648 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:33,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [31468856] [2022-07-12 11:15:33,649 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-12 11:15:33,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:33,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:33,650 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:15:33,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-12 11:15:35,042 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-07-12 11:15:35,042 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 11:15:35,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 2171 conjuncts, 161 conjunts are in the unsatisfiable core [2022-07-12 11:15:35,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:35,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 11:15:35,289 INFO L356 Elim1Store]: treesize reduction 64, result has 42.3 percent of original size [2022-07-12 11:15:35,290 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 59 [2022-07-12 11:15:59,674 WARN L233 SmtUtils]: Spent 8.52s on a formula simplification that was a NOOP. DAG size: 61 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-12 11:16:06,965 WARN L233 SmtUtils]: Spent 6.63s on a formula simplification that was a NOOP. DAG size: 65 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-12 11:17:08,169 WARN L233 SmtUtils]: Spent 19.54s on a formula simplification. DAG size of input: 121 DAG size of output: 108 (called from [L 353] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-07-12 11:17:08,169 INFO L356 Elim1Store]: treesize reduction 39, result has 88.1 percent of original size [2022-07-12 11:17:08,170 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 289 treesize of output 434 [2022-07-12 11:18:27,938 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 144 proven. 6 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2022-07-12 11:18:27,938 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 11:18:39,089 WARN L233 SmtUtils]: Spent 5.85s on a formula simplification that was a NOOP. DAG size: 83 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-12 11:18:43,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:18:43,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513640501] [2022-07-12 11:18:43,633 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:18:43,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31468856] [2022-07-12 11:18:43,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [31468856] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 11:18:43,633 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-12 11:18:43,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2022-07-12 11:18:43,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381469286] [2022-07-12 11:18:43,634 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-12 11:18:43,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-07-12 11:18:43,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:18:43,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-07-12 11:18:43,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=776, Unknown=11, NotChecked=0, Total=870 [2022-07-12 11:18:43,635 INFO L87 Difference]: Start difference. First operand 502 states and 751 transitions. Second operand has 26 states, 22 states have (on average 4.590909090909091) internal successors, (101), 19 states have internal predecessors, (101), 7 states have call successors, (31), 4 states have call predecessors, (31), 5 states have return successors, (29), 7 states have call predecessors, (29), 6 states have call successors, (29) [2022-07-12 11:18:55,427 WARN L233 SmtUtils]: Spent 6.25s on a formula simplification. DAG size of input: 88 DAG size of output: 65 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-12 11:19:01,727 WARN L233 SmtUtils]: Spent 5.59s on a formula simplification. DAG size of input: 82 DAG size of output: 59 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-12 11:19:08,952 WARN L233 SmtUtils]: Spent 6.47s on a formula simplification. DAG size of input: 83 DAG size of output: 60 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)