./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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_s_sift_either_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 355537246d5dfb9690a92cc5d0cbf014736bcc62122f38f5559ea0fbf5331d1c --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 09:49:47,300 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 09:49:47,303 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 09:49:47,351 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 09:49:47,352 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 09:49:47,353 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 09:49:47,357 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 09:49:47,360 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 09:49:47,362 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 09:49:47,367 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 09:49:47,369 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 09:49:47,371 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 09:49:47,371 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 09:49:47,372 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 09:49:47,373 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 09:49:47,374 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 09:49:47,375 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 09:49:47,375 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 09:49:47,377 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 09:49:47,378 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 09:49:47,379 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 09:49:47,380 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 09:49:47,381 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 09:49:47,382 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 09:49:47,383 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 09:49:47,385 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 09:49:47,385 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 09:49:47,386 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 09:49:47,386 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 09:49:47,387 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 09:49:47,388 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 09:49:47,388 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 09:49:47,388 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 09:49:47,389 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 09:49:47,390 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 09:49:47,391 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 09:49:47,391 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 09:49:47,392 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 09:49:47,392 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 09:49:47,392 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 09:49:47,393 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 09:49:47,398 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 09:49:47,398 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 09:49:47,433 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 09:49:47,434 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 09:49:47,434 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 09:49:47,434 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 09:49:47,435 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 09:49:47,435 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 09:49:47,436 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 09:49:47,436 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 09:49:47,436 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 09:49:47,437 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 09:49:47,437 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 09:49:47,438 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 09:49:47,438 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 09:49:47,438 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 09:49:47,438 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 09:49:47,438 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 09:49:47,439 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 09:49:47,439 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 09:49:47,439 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 09:49:47,439 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 09:49:47,439 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 09:49:47,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 09:49:47,440 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 09:49:47,440 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 09:49:47,440 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 09:49:47,440 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 09:49:47,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 09:49:47,441 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 09:49:47,441 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 09:49:47,441 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 09:49:47,442 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 355537246d5dfb9690a92cc5d0cbf014736bcc62122f38f5559ea0fbf5331d1c [2022-07-21 09:49:47,758 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 09:49:47,782 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 09:49:47,785 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 09:49:47,786 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 09:49:47,786 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 09:49:47,788 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2022-07-21 09:49:47,843 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac25c39f6/b85f6740d7e84f44b2623963e37a9337/FLAG8e9b40e34 [2022-07-21 09:49:48,567 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 09:49:48,568 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2022-07-21 09:49:48,603 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac25c39f6/b85f6740d7e84f44b2623963e37a9337/FLAG8e9b40e34 [2022-07-21 09:49:48,861 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac25c39f6/b85f6740d7e84f44b2623963e37a9337 [2022-07-21 09:49:48,863 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 09:49:48,864 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 09:49:48,865 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 09:49:48,865 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 09:49:48,868 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 09:49:48,869 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 09:49:48" (1/1) ... [2022-07-21 09:49:48,870 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@241e10cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:49:48, skipping insertion in model container [2022-07-21 09:49:48,870 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 09:49:48" (1/1) ... [2022-07-21 09:49:48,875 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 09:49:48,962 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 09:49:49,238 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_s_sift_either_harness.i[4506,4519] [2022-07-21 09:49:49,245 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_s_sift_either_harness.i[4566,4579] [2022-07-21 09:49:49,985 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:49,986 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:49,986 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:49,987 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:49,988 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:49,997 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:49,998 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,000 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,000 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,002 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,002 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,003 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,003 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,242 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-21 09:49:50,243 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-21 09:49:50,244 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-21 09:49:50,245 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-21 09:49:50,246 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-21 09:49:50,246 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-21 09:49:50,247 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-21 09:49:50,247 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-21 09:49:50,248 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-21 09:49:50,248 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-21 09:49:50,371 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-21 09:49:50,410 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,417 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,424 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,432 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,502 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,503 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,503 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,503 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,504 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,505 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,505 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,506 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,506 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,507 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,507 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,507 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,507 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,514 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,514 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,514 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,515 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,521 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,521 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,530 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,531 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,531 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,550 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 09:49:50,578 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 09:49:50,598 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_s_sift_either_harness.i[4506,4519] [2022-07-21 09:49:50,598 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_s_sift_either_harness.i[4566,4579] [2022-07-21 09:49:50,630 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,630 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,631 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,631 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,632 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,636 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,640 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,641 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,641 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,642 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,642 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,643 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,643 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,699 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-21 09:49:50,700 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-21 09:49:50,700 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-21 09:49:50,701 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-21 09:49:50,702 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-21 09:49:50,702 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-21 09:49:50,703 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-21 09:49:50,703 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-21 09:49:50,704 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-21 09:49:50,704 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-21 09:49:50,739 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-21 09:49:50,748 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,752 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,753 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,757 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,785 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,786 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,786 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,786 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,787 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,787 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,787 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,788 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,789 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,789 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,789 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,790 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,790 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,791 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,791 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,792 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,792 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,793 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,794 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,798 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,798 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,799 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:49:50,807 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 09:49:51,065 INFO L208 MainTranslator]: Completed translation [2022-07-21 09:49:51,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:49:51 WrapperNode [2022-07-21 09:49:51,067 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 09:49:51,067 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 09:49:51,068 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 09:49:51,068 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 09:49:51,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:49:51" (1/1) ... [2022-07-21 09:49:51,162 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:49:51" (1/1) ... [2022-07-21 09:49:51,233 INFO L137 Inliner]: procedures = 697, calls = 1887, calls flagged for inlining = 60, calls inlined = 15, statements flattened = 919 [2022-07-21 09:49:51,242 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 09:49:51,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 09:49:51,243 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 09:49:51,243 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 09:49:51,250 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:49:51" (1/1) ... [2022-07-21 09:49:51,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:49:51" (1/1) ... [2022-07-21 09:49:51,260 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:49:51" (1/1) ... [2022-07-21 09:49:51,266 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:49:51" (1/1) ... [2022-07-21 09:49:51,310 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:49:51" (1/1) ... [2022-07-21 09:49:51,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:49:51" (1/1) ... [2022-07-21 09:49:51,337 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:49:51" (1/1) ... [2022-07-21 09:49:51,345 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 09:49:51,348 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 09:49:51,349 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 09:49:51,349 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 09:49:51,349 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:49:51" (1/1) ... [2022-07-21 09:49:51,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 09:49:51,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:49:51,380 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) [2022-07-21 09:49:51,403 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 [2022-07-21 09:49:51,418 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_either [2022-07-21 09:49:51,418 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_either [2022-07-21 09:49:51,418 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2022-07-21 09:49:51,418 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2022-07-21 09:49:51,419 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-07-21 09:49:51,419 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-07-21 09:49:51,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 09:49:51,419 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-07-21 09:49:51,419 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-07-21 09:49:51,419 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-07-21 09:49:51,420 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-07-21 09:49:51,420 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-07-21 09:49:51,420 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-07-21 09:49:51,420 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2022-07-21 09:49:51,420 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2022-07-21 09:49:51,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 09:49:51,422 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-07-21 09:49:51,424 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-07-21 09:49:51,424 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-21 09:49:51,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-21 09:49:51,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 09:49:51,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 09:49:51,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 09:49:51,426 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2022-07-21 09:49:51,426 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2022-07-21 09:49:51,435 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-07-21 09:49:51,440 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-07-21 09:49:51,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 09:49:51,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 09:49:51,441 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-07-21 09:49:51,441 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-07-21 09:49:51,441 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-07-21 09:49:51,441 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-07-21 09:49:51,441 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-07-21 09:49:51,441 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-07-21 09:49:51,441 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2022-07-21 09:49:51,442 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2022-07-21 09:49:51,442 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-07-21 09:49:51,442 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-07-21 09:49:51,442 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 09:49:51,442 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 09:49:51,442 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-07-21 09:49:51,442 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-07-21 09:49:51,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 09:49:51,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 09:49:51,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 09:49:51,443 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2022-07-21 09:49:51,443 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2022-07-21 09:49:51,443 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-07-21 09:49:51,443 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-07-21 09:49:51,443 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-07-21 09:49:51,443 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-07-21 09:49:51,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 09:49:51,444 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-07-21 09:49:51,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-07-21 09:49:51,444 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2022-07-21 09:49:51,444 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2022-07-21 09:49:51,444 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-21 09:49:51,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-21 09:49:51,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 09:49:51,809 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 09:49:51,811 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 09:49:52,769 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 09:49:52,783 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 09:49:52,784 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-07-21 09:49:52,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:49:52 BoogieIcfgContainer [2022-07-21 09:49:52,786 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 09:49:52,789 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 09:49:52,789 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 09:49:52,791 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 09:49:52,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 09:49:48" (1/3) ... [2022-07-21 09:49:52,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3edfe797 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 09:49:52, skipping insertion in model container [2022-07-21 09:49:52,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:49:51" (2/3) ... [2022-07-21 09:49:52,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3edfe797 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 09:49:52, skipping insertion in model container [2022-07-21 09:49:52,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:49:52" (3/3) ... [2022-07-21 09:49:52,794 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_either_harness.i [2022-07-21 09:49:52,811 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 09:49:52,811 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-21 09:49:52,872 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 09:49:52,882 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@3813dc64, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@37fad31b [2022-07-21 09:49:52,882 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-21 09:49:52,888 INFO L276 IsEmpty]: Start isEmpty. Operand has 358 states, 218 states have (on average 1.2660550458715596) internal successors, (276), 221 states have internal predecessors, (276), 113 states have call successors, (113), 24 states have call predecessors, (113), 24 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2022-07-21 09:49:52,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-21 09:49:52,911 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:49:52,912 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 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] [2022-07-21 09:49:52,912 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:49:52,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:49:52,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1703596242, now seen corresponding path program 1 times [2022-07-21 09:49:52,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:49:52,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266087634] [2022-07-21 09:49:52,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:49:52,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:49:53,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:53,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:49:53,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:53,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 09:49:53,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:53,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 09:49:53,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:53,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 09:49:53,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:53,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 09:49:53,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:53,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-21 09:49:53,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:53,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 09:49:53,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:53,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 09:49:53,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:53,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-21 09:49:53,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:53,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-21 09:49:53,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:53,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 09:49:53,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:53,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 09:49:53,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:53,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-21 09:49:53,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:53,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 09:49:53,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:53,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 09:49:53,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:53,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 09:49:53,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:53,700 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-07-21 09:49:53,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:49:53,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266087634] [2022-07-21 09:49:53,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266087634] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:49:53,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:49:53,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 09:49:53,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056859608] [2022-07-21 09:49:53,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:49:53,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 09:49:53,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:49:53,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 09:49:53,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-21 09:49:53,740 INFO L87 Difference]: Start difference. First operand has 358 states, 218 states have (on average 1.2660550458715596) internal successors, (276), 221 states have internal predecessors, (276), 113 states have call successors, (113), 24 states have call predecessors, (113), 24 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-21 09:49:54,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:49:54,793 INFO L93 Difference]: Finished difference Result 821 states and 1341 transitions. [2022-07-21 09:49:54,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 09:49:54,795 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 103 [2022-07-21 09:49:54,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:49:54,819 INFO L225 Difference]: With dead ends: 821 [2022-07-21 09:49:54,819 INFO L226 Difference]: Without dead ends: 469 [2022-07-21 09:49:54,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-21 09:49:54,841 INFO L413 NwaCegarLoop]: 475 mSDtfsCounter, 267 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 394 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 394 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 09:49:54,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 627 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [394 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 09:49:54,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2022-07-21 09:49:54,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 351. [2022-07-21 09:49:54,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 213 states have (on average 1.2300469483568075) internal successors, (262), 215 states have internal predecessors, (262), 113 states have call successors, (113), 24 states have call predecessors, (113), 23 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2022-07-21 09:49:54,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 486 transitions. [2022-07-21 09:49:54,957 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 486 transitions. Word has length 103 [2022-07-21 09:49:54,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:49:54,958 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 486 transitions. [2022-07-21 09:49:54,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-21 09:49:54,958 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 486 transitions. [2022-07-21 09:49:54,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-21 09:49:54,961 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:49:54,961 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 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] [2022-07-21 09:49:54,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 09:49:54,962 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:49:54,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:49:54,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1175202252, now seen corresponding path program 1 times [2022-07-21 09:49:54,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:49:54,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283133392] [2022-07-21 09:49:54,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:49:54,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:49:55,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:55,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:49:55,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:55,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 09:49:55,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:55,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 09:49:55,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:55,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 09:49:55,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:55,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 09:49:55,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:55,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-21 09:49:55,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:55,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 09:49:55,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:55,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 09:49:55,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:55,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-21 09:49:55,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:55,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-21 09:49:55,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:55,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 09:49:55,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:55,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 09:49:55,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:55,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-21 09:49:55,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:55,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 09:49:55,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:55,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 09:49:55,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:55,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 09:49:55,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:55,347 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-07-21 09:49:55,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:49:55,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283133392] [2022-07-21 09:49:55,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283133392] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 09:49:55,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1919112156] [2022-07-21 09:49:55,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:49:55,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:49:55,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:49:55,351 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) [2022-07-21 09:49:55,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-21 09:49:55,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:55,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 2158 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 09:49:55,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:49:55,818 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-07-21 09:49:55,818 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:49:55,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1919112156] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:49:55,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 09:49:55,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-07-21 09:49:55,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543963192] [2022-07-21 09:49:55,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:49:55,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 09:49:55,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:49:55,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 09:49:55,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-21 09:49:55,822 INFO L87 Difference]: Start difference. First operand 351 states and 486 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-21 09:49:55,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:49:55,858 INFO L93 Difference]: Finished difference Result 437 states and 596 transitions. [2022-07-21 09:49:55,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 09:49:55,859 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 103 [2022-07-21 09:49:55,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:49:55,863 INFO L225 Difference]: With dead ends: 437 [2022-07-21 09:49:55,863 INFO L226 Difference]: Without dead ends: 352 [2022-07-21 09:49:55,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-21 09:49:55,865 INFO L413 NwaCegarLoop]: 485 mSDtfsCounter, 0 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 965 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 09:49:55,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 965 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 09:49:55,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2022-07-21 09:49:55,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 352. [2022-07-21 09:49:55,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 214 states have (on average 1.2289719626168225) internal successors, (263), 216 states have internal predecessors, (263), 113 states have call successors, (113), 24 states have call predecessors, (113), 23 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2022-07-21 09:49:55,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 487 transitions. [2022-07-21 09:49:55,910 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 487 transitions. Word has length 103 [2022-07-21 09:49:55,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:49:55,912 INFO L495 AbstractCegarLoop]: Abstraction has 352 states and 487 transitions. [2022-07-21 09:49:55,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-21 09:49:55,913 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 487 transitions. [2022-07-21 09:49:55,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-07-21 09:49:55,917 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:49:55,918 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 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] [2022-07-21 09:49:55,949 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-21 09:49:56,131 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 [2022-07-21 09:49:56,132 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:49:56,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:49:56,132 INFO L85 PathProgramCache]: Analyzing trace with hash -99696786, now seen corresponding path program 1 times [2022-07-21 09:49:56,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:49:56,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290329901] [2022-07-21 09:49:56,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:49:56,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:49:56,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:56,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:49:56,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:56,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 09:49:56,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:56,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 09:49:56,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:56,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 09:49:56,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:56,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 09:49:56,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:56,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-21 09:49:56,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:56,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 09:49:56,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:56,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 09:49:56,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:56,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-21 09:49:56,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:56,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-21 09:49:56,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:56,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 09:49:56,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:56,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 09:49:56,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:56,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-21 09:49:56,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:56,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 09:49:56,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:56,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 09:49:56,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:56,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-21 09:49:56,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:56,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 09:49:56,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:56,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-21 09:49:56,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:56,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-21 09:49:56,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:56,516 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-07-21 09:49:56,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:49:56,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290329901] [2022-07-21 09:49:56,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290329901] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 09:49:56,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1012117240] [2022-07-21 09:49:56,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:49:56,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:49:56,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:49:56,519 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) [2022-07-21 09:49:56,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-21 09:49:56,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:56,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 2271 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-21 09:49:56,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:49:57,062 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-07-21 09:49:57,063 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:49:57,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1012117240] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:49:57,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 09:49:57,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2022-07-21 09:49:57,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251612211] [2022-07-21 09:49:57,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:49:57,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 09:49:57,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:49:57,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 09:49:57,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-07-21 09:49:57,066 INFO L87 Difference]: Start difference. First operand 352 states and 487 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-21 09:49:57,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:49:57,274 INFO L93 Difference]: Finished difference Result 670 states and 938 transitions. [2022-07-21 09:49:57,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 09:49:57,275 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 124 [2022-07-21 09:49:57,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:49:57,278 INFO L225 Difference]: With dead ends: 670 [2022-07-21 09:49:57,279 INFO L226 Difference]: Without dead ends: 354 [2022-07-21 09:49:57,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-07-21 09:49:57,281 INFO L413 NwaCegarLoop]: 445 mSDtfsCounter, 504 mSDsluCounter, 1264 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 1709 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 09:49:57,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [520 Valid, 1709 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 09:49:57,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-07-21 09:49:57,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 354. [2022-07-21 09:49:57,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 215 states have (on average 1.2279069767441861) internal successors, (264), 218 states have internal predecessors, (264), 113 states have call successors, (113), 24 states have call predecessors, (113), 24 states have return successors, (119), 111 states have call predecessors, (119), 111 states have call successors, (119) [2022-07-21 09:49:57,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 496 transitions. [2022-07-21 09:49:57,309 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 496 transitions. Word has length 124 [2022-07-21 09:49:57,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:49:57,310 INFO L495 AbstractCegarLoop]: Abstraction has 354 states and 496 transitions. [2022-07-21 09:49:57,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-21 09:49:57,310 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 496 transitions. [2022-07-21 09:49:57,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-07-21 09:49:57,312 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:49:57,312 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 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] [2022-07-21 09:49:57,346 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-21 09:49:57,543 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 [2022-07-21 09:49:57,544 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:49:57,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:49:57,544 INFO L85 PathProgramCache]: Analyzing trace with hash -2138740587, now seen corresponding path program 1 times [2022-07-21 09:49:57,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:49:57,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650518450] [2022-07-21 09:49:57,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:49:57,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:49:57,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:57,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:49:57,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:57,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 09:49:57,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:57,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 09:49:57,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:57,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 09:49:57,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:57,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 09:49:57,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:57,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-21 09:49:57,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:57,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 09:49:57,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:57,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 09:49:57,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:57,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-21 09:49:57,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:57,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-21 09:49:57,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:57,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:49:57,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:57,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 09:49:57,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:57,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 09:49:57,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:57,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 09:49:57,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:57,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-21 09:49:57,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:57,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 09:49:57,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:57,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-21 09:49:57,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:57,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-21 09:49:57,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:57,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 09:49:57,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:57,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-21 09:49:57,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:57,917 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-07-21 09:49:57,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:49:57,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650518450] [2022-07-21 09:49:57,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650518450] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 09:49:57,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510010161] [2022-07-21 09:49:57,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:49:57,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:49:57,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:49:57,920 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) [2022-07-21 09:49:57,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-21 09:49:58,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:58,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 2321 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-21 09:49:58,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:49:58,446 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-07-21 09:49:58,447 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:49:58,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510010161] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:49:58,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 09:49:58,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2022-07-21 09:49:58,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953618552] [2022-07-21 09:49:58,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:49:58,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 09:49:58,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:49:58,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 09:49:58,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-07-21 09:49:58,448 INFO L87 Difference]: Start difference. First operand 354 states and 496 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2022-07-21 09:49:58,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:49:58,711 INFO L93 Difference]: Finished difference Result 693 states and 993 transitions. [2022-07-21 09:49:58,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 09:49:58,711 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 132 [2022-07-21 09:49:58,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:49:58,715 INFO L225 Difference]: With dead ends: 693 [2022-07-21 09:49:58,715 INFO L226 Difference]: Without dead ends: 375 [2022-07-21 09:49:58,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-07-21 09:49:58,717 INFO L413 NwaCegarLoop]: 452 mSDtfsCounter, 96 mSDsluCounter, 2135 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 2587 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 09:49:58,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 2587 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 09:49:58,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2022-07-21 09:49:58,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 373. [2022-07-21 09:49:58,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 231 states have (on average 1.2380952380952381) internal successors, (286), 234 states have internal predecessors, (286), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2022-07-21 09:49:58,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 533 transitions. [2022-07-21 09:49:58,754 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 533 transitions. Word has length 132 [2022-07-21 09:49:58,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:49:58,756 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 533 transitions. [2022-07-21 09:49:58,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2022-07-21 09:49:58,757 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 533 transitions. [2022-07-21 09:49:58,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-07-21 09:49:58,761 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:49:58,761 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 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] [2022-07-21 09:49:58,791 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-21 09:49:58,974 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 [2022-07-21 09:49:58,974 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:49:58,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:49:58,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1048395964, now seen corresponding path program 1 times [2022-07-21 09:49:58,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:49:58,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136648645] [2022-07-21 09:49:58,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:49:58,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:49:59,052 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:49:59,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [357534394] [2022-07-21 09:49:59,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:49:59,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:49:59,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:49:59,055 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) [2022-07-21 09:49:59,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-21 09:49:59,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:49:59,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 2462 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-21 09:49:59,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:49:59,548 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-07-21 09:49:59,549 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:49:59,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:49:59,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136648645] [2022-07-21 09:49:59,549 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:49:59,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [357534394] [2022-07-21 09:49:59,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [357534394] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:49:59,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:49:59,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 09:49:59,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643723024] [2022-07-21 09:49:59,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:49:59,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 09:49:59,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:49:59,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 09:49:59,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 09:49:59,552 INFO L87 Difference]: Start difference. First operand 373 states and 533 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-07-21 09:49:59,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:49:59,837 INFO L93 Difference]: Finished difference Result 718 states and 1050 transitions. [2022-07-21 09:49:59,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 09:49:59,838 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 147 [2022-07-21 09:49:59,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:49:59,841 INFO L225 Difference]: With dead ends: 718 [2022-07-21 09:49:59,841 INFO L226 Difference]: Without dead ends: 381 [2022-07-21 09:49:59,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-07-21 09:49:59,844 INFO L413 NwaCegarLoop]: 439 mSDtfsCounter, 528 mSDsluCounter, 1655 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 2094 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 09:49:59,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [544 Valid, 2094 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 09:49:59,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2022-07-21 09:49:59,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 373. [2022-07-21 09:49:59,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 231 states have (on average 1.2380952380952381) internal successors, (286), 234 states have internal predecessors, (286), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2022-07-21 09:49:59,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 533 transitions. [2022-07-21 09:49:59,865 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 533 transitions. Word has length 147 [2022-07-21 09:49:59,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:49:59,865 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 533 transitions. [2022-07-21 09:49:59,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-07-21 09:49:59,866 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 533 transitions. [2022-07-21 09:49:59,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-07-21 09:49:59,868 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:49:59,868 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:49:59,899 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-21 09:50:00,096 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 [2022-07-21 09:50:00,096 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:50:00,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:50:00,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1514523470, now seen corresponding path program 1 times [2022-07-21 09:50:00,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:50:00,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070603118] [2022-07-21 09:50:00,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:50:00,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:50:00,176 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:50:00,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1218309673] [2022-07-21 09:50:00,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:50:00,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:50:00,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:50:00,178 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) [2022-07-21 09:50:00,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-21 09:50:00,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:50:00,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 2534 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-21 09:50:00,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:50:00,725 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-07-21 09:50:00,725 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:50:00,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:50:00,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070603118] [2022-07-21 09:50:00,726 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:50:00,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218309673] [2022-07-21 09:50:00,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218309673] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:50:00,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:50:00,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 09:50:00,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198834617] [2022-07-21 09:50:00,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:50:00,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 09:50:00,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:50:00,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 09:50:00,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-21 09:50:00,728 INFO L87 Difference]: Start difference. First operand 373 states and 533 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2022-07-21 09:50:01,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:50:01,077 INFO L93 Difference]: Finished difference Result 744 states and 1088 transitions. [2022-07-21 09:50:01,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 09:50:01,078 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) Word has length 163 [2022-07-21 09:50:01,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:50:01,081 INFO L225 Difference]: With dead ends: 744 [2022-07-21 09:50:01,081 INFO L226 Difference]: Without dead ends: 407 [2022-07-21 09:50:01,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-07-21 09:50:01,084 INFO L413 NwaCegarLoop]: 447 mSDtfsCounter, 117 mSDsluCounter, 2520 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 2967 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 09:50:01,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 2967 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 09:50:01,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2022-07-21 09:50:01,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 373. [2022-07-21 09:50:01,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 231 states have (on average 1.2380952380952381) internal successors, (286), 234 states have internal predecessors, (286), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2022-07-21 09:50:01,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 533 transitions. [2022-07-21 09:50:01,105 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 533 transitions. Word has length 163 [2022-07-21 09:50:01,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:50:01,106 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 533 transitions. [2022-07-21 09:50:01,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2022-07-21 09:50:01,106 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 533 transitions. [2022-07-21 09:50:01,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-21 09:50:01,109 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:50:01,109 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 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] [2022-07-21 09:50:01,140 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-21 09:50:01,332 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 [2022-07-21 09:50:01,332 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:50:01,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:50:01,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1136730081, now seen corresponding path program 1 times [2022-07-21 09:50:01,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:50:01,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513003607] [2022-07-21 09:50:01,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:50:01,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:50:01,393 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:50:01,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [121872486] [2022-07-21 09:50:01,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:50:01,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:50:01,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:50:01,396 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) [2022-07-21 09:50:01,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-21 09:50:01,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:50:01,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 2675 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-21 09:50:01,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:50:01,987 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-07-21 09:50:01,987 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:50:01,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:50:01,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513003607] [2022-07-21 09:50:01,988 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:50:01,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [121872486] [2022-07-21 09:50:01,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [121872486] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:50:01,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:50:01,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 09:50:01,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735433736] [2022-07-21 09:50:01,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:50:01,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 09:50:01,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:50:01,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 09:50:01,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-21 09:50:01,990 INFO L87 Difference]: Start difference. First operand 373 states and 533 transitions. Second operand has 8 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2022-07-21 09:50:02,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:50:02,315 INFO L93 Difference]: Finished difference Result 683 states and 991 transitions. [2022-07-21 09:50:02,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 09:50:02,315 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) Word has length 178 [2022-07-21 09:50:02,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:50:02,318 INFO L225 Difference]: With dead ends: 683 [2022-07-21 09:50:02,319 INFO L226 Difference]: Without dead ends: 375 [2022-07-21 09:50:02,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-07-21 09:50:02,321 INFO L413 NwaCegarLoop]: 428 mSDtfsCounter, 545 mSDsluCounter, 1994 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 2422 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 09:50:02,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [553 Valid, 2422 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 09:50:02,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2022-07-21 09:50:02,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2022-07-21 09:50:02,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 232 states have (on average 1.2370689655172413) internal successors, (287), 236 states have internal predecessors, (287), 115 states have call successors, (115), 24 states have call predecessors, (115), 26 states have return successors, (138), 114 states have call predecessors, (138), 113 states have call successors, (138) [2022-07-21 09:50:02,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 540 transitions. [2022-07-21 09:50:02,340 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 540 transitions. Word has length 178 [2022-07-21 09:50:02,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:50:02,343 INFO L495 AbstractCegarLoop]: Abstraction has 375 states and 540 transitions. [2022-07-21 09:50:02,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2022-07-21 09:50:02,344 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 540 transitions. [2022-07-21 09:50:02,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-07-21 09:50:02,346 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:50:02,347 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:50:02,378 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-21 09:50:02,575 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 [2022-07-21 09:50:02,576 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:50:02,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:50:02,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1083469799, now seen corresponding path program 1 times [2022-07-21 09:50:02,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:50:02,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521648454] [2022-07-21 09:50:02,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:50:02,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:50:02,639 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:50:02,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [515128828] [2022-07-21 09:50:02,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:50:02,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:50:02,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:50:02,641 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) [2022-07-21 09:50:02,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-21 09:50:03,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:50:03,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 2866 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-21 09:50:03,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:50:03,214 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2022-07-21 09:50:03,215 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:50:03,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:50:03,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521648454] [2022-07-21 09:50:03,215 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:50:03,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515128828] [2022-07-21 09:50:03,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515128828] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:50:03,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:50:03,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-21 09:50:03,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952876827] [2022-07-21 09:50:03,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:50:03,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 09:50:03,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:50:03,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 09:50:03,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 09:50:03,218 INFO L87 Difference]: Start difference. First operand 375 states and 540 transitions. Second operand has 9 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 5 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2022-07-21 09:50:03,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:50:03,676 INFO L93 Difference]: Finished difference Result 688 states and 1006 transitions. [2022-07-21 09:50:03,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 09:50:03,677 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 5 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) Word has length 201 [2022-07-21 09:50:03,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:50:03,680 INFO L225 Difference]: With dead ends: 688 [2022-07-21 09:50:03,680 INFO L226 Difference]: Without dead ends: 378 [2022-07-21 09:50:03,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-07-21 09:50:03,682 INFO L413 NwaCegarLoop]: 422 mSDtfsCounter, 569 mSDsluCounter, 2351 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 2773 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 09:50:03,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [577 Valid, 2773 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 09:50:03,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2022-07-21 09:50:03,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 376. [2022-07-21 09:50:03,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 233 states have (on average 1.2360515021459229) internal successors, (288), 237 states have internal predecessors, (288), 115 states have call successors, (115), 24 states have call predecessors, (115), 26 states have return successors, (138), 114 states have call predecessors, (138), 113 states have call successors, (138) [2022-07-21 09:50:03,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 541 transitions. [2022-07-21 09:50:03,705 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 541 transitions. Word has length 201 [2022-07-21 09:50:03,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:50:03,705 INFO L495 AbstractCegarLoop]: Abstraction has 376 states and 541 transitions. [2022-07-21 09:50:03,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 5 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2022-07-21 09:50:03,706 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 541 transitions. [2022-07-21 09:50:03,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-07-21 09:50:03,708 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:50:03,708 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:50:03,743 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-21 09:50:03,923 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 [2022-07-21 09:50:03,924 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:50:03,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:50:03,924 INFO L85 PathProgramCache]: Analyzing trace with hash 2112387732, now seen corresponding path program 2 times [2022-07-21 09:50:03,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:50:03,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935733808] [2022-07-21 09:50:03,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:50:03,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:50:04,030 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:50:04,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2038241932] [2022-07-21 09:50:04,032 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 09:50:04,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:50:04,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:50:04,033 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) [2022-07-21 09:50:04,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-21 09:50:04,459 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-21 09:50:04,459 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 09:50:04,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 1848 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 09:50:04,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:50:04,532 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2022-07-21 09:50:04,532 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:50:04,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:50:04,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935733808] [2022-07-21 09:50:04,533 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:50:04,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2038241932] [2022-07-21 09:50:04,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2038241932] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:50:04,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:50:04,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 09:50:04,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777025406] [2022-07-21 09:50:04,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:50:04,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 09:50:04,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:50:04,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 09:50:04,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 09:50:04,535 INFO L87 Difference]: Start difference. First operand 376 states and 541 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-21 09:50:04,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:50:04,578 INFO L93 Difference]: Finished difference Result 660 states and 957 transitions. [2022-07-21 09:50:04,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 09:50:04,578 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 232 [2022-07-21 09:50:04,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:50:04,581 INFO L225 Difference]: With dead ends: 660 [2022-07-21 09:50:04,581 INFO L226 Difference]: Without dead ends: 386 [2022-07-21 09:50:04,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 09:50:04,583 INFO L413 NwaCegarLoop]: 492 mSDtfsCounter, 16 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 09:50:04,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 952 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 09:50:04,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2022-07-21 09:50:04,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 381. [2022-07-21 09:50:04,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 238 states have (on average 1.23109243697479) internal successors, (293), 242 states have internal predecessors, (293), 115 states have call successors, (115), 24 states have call predecessors, (115), 26 states have return successors, (138), 114 states have call predecessors, (138), 113 states have call successors, (138) [2022-07-21 09:50:04,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 546 transitions. [2022-07-21 09:50:04,605 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 546 transitions. Word has length 232 [2022-07-21 09:50:04,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:50:04,605 INFO L495 AbstractCegarLoop]: Abstraction has 381 states and 546 transitions. [2022-07-21 09:50:04,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-21 09:50:04,606 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 546 transitions. [2022-07-21 09:50:04,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-07-21 09:50:04,608 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:50:04,608 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:50:04,638 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-21 09:50:04,835 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 [2022-07-21 09:50:04,836 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:50:04,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:50:04,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1034024686, now seen corresponding path program 1 times [2022-07-21 09:50:04,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:50:04,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786998288] [2022-07-21 09:50:04,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:50:04,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:50:04,903 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:50:04,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1039076545] [2022-07-21 09:50:04,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:50:04,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:50:04,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:50:04,905 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) [2022-07-21 09:50:04,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-21 09:50:05,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:50:05,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 2801 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-21 09:50:05,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:50:05,535 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 121 proven. 3 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-07-21 09:50:05,536 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 09:50:05,823 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 25 proven. 9 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2022-07-21 09:50:05,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:50:05,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786998288] [2022-07-21 09:50:05,823 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:50:05,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1039076545] [2022-07-21 09:50:05,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1039076545] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 09:50:05,824 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 09:50:05,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2022-07-21 09:50:05,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456380080] [2022-07-21 09:50:05,825 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 09:50:05,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-21 09:50:05,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:50:05,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-21 09:50:05,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-07-21 09:50:05,827 INFO L87 Difference]: Start difference. First operand 381 states and 546 transitions. Second operand has 14 states, 12 states have (on average 9.416666666666666) internal successors, (113), 12 states have internal predecessors, (113), 9 states have call successors, (43), 4 states have call predecessors, (43), 4 states have return successors, (39), 5 states have call predecessors, (39), 9 states have call successors, (39) [2022-07-21 09:50:06,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:50:06,250 INFO L93 Difference]: Finished difference Result 716 states and 1045 transitions. [2022-07-21 09:50:06,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 09:50:06,251 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 9.416666666666666) internal successors, (113), 12 states have internal predecessors, (113), 9 states have call successors, (43), 4 states have call predecessors, (43), 4 states have return successors, (39), 5 states have call predecessors, (39), 9 states have call successors, (39) Word has length 204 [2022-07-21 09:50:06,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:50:06,254 INFO L225 Difference]: With dead ends: 716 [2022-07-21 09:50:06,254 INFO L226 Difference]: Without dead ends: 400 [2022-07-21 09:50:06,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 395 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2022-07-21 09:50:06,257 INFO L413 NwaCegarLoop]: 466 mSDtfsCounter, 174 mSDsluCounter, 4248 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 4714 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 09:50:06,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 4714 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 560 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 09:50:06,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2022-07-21 09:50:06,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 394. [2022-07-21 09:50:06,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 250 states have (on average 1.24) internal successors, (310), 253 states have internal predecessors, (310), 116 states have call successors, (116), 24 states have call predecessors, (116), 26 states have return successors, (139), 116 states have call predecessors, (139), 114 states have call successors, (139) [2022-07-21 09:50:06,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 565 transitions. [2022-07-21 09:50:06,278 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 565 transitions. Word has length 204 [2022-07-21 09:50:06,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:50:06,279 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 565 transitions. [2022-07-21 09:50:06,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 9.416666666666666) internal successors, (113), 12 states have internal predecessors, (113), 9 states have call successors, (43), 4 states have call predecessors, (43), 4 states have return successors, (39), 5 states have call predecessors, (39), 9 states have call successors, (39) [2022-07-21 09:50:06,279 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 565 transitions. [2022-07-21 09:50:06,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-07-21 09:50:06,281 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:50:06,282 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 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, 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] [2022-07-21 09:50:06,312 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-21 09:50:06,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-21 09:50:06,501 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:50:06,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:50:06,502 INFO L85 PathProgramCache]: Analyzing trace with hash -247754433, now seen corresponding path program 2 times [2022-07-21 09:50:06,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:50:06,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311878175] [2022-07-21 09:50:06,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:50:06,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:50:06,567 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:50:06,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1761131925] [2022-07-21 09:50:06,567 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 09:50:06,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:50:06,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:50:06,569 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:50:06,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-21 09:50:07,355 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-21 09:50:07,355 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 09:50:07,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 2942 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-21 09:50:07,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:50:07,480 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-07-21 09:50:07,480 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:50:07,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:50:07,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311878175] [2022-07-21 09:50:07,480 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:50:07,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761131925] [2022-07-21 09:50:07,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1761131925] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:50:07,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:50:07,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-21 09:50:07,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943402447] [2022-07-21 09:50:07,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:50:07,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-21 09:50:07,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:50:07,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-21 09:50:07,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-21 09:50:07,484 INFO L87 Difference]: Start difference. First operand 394 states and 565 transitions. Second operand has 10 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 6 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (23), 5 states have call predecessors, (23), 6 states have call successors, (23) [2022-07-21 09:50:07,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:50:07,907 INFO L93 Difference]: Finished difference Result 741 states and 1080 transitions. [2022-07-21 09:50:07,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 09:50:07,907 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 6 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (23), 5 states have call predecessors, (23), 6 states have call successors, (23) Word has length 219 [2022-07-21 09:50:07,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:50:07,911 INFO L225 Difference]: With dead ends: 741 [2022-07-21 09:50:07,911 INFO L226 Difference]: Without dead ends: 412 [2022-07-21 09:50:07,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-07-21 09:50:07,914 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 177 mSDsluCounter, 3267 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 3710 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 09:50:07,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 3710 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 09:50:07,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2022-07-21 09:50:07,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 378. [2022-07-21 09:50:07,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 236 states have (on average 1.2330508474576272) internal successors, (291), 239 states have internal predecessors, (291), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (130), 114 states have call predecessors, (130), 113 states have call successors, (130) [2022-07-21 09:50:07,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 536 transitions. [2022-07-21 09:50:07,933 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 536 transitions. Word has length 219 [2022-07-21 09:50:07,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:50:07,933 INFO L495 AbstractCegarLoop]: Abstraction has 378 states and 536 transitions. [2022-07-21 09:50:07,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 6 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (23), 5 states have call predecessors, (23), 6 states have call successors, (23) [2022-07-21 09:50:07,933 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 536 transitions. [2022-07-21 09:50:07,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-07-21 09:50:07,936 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:50:07,936 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:50:07,967 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-21 09:50:08,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-21 09:50:08,155 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:50:08,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:50:08,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1511536, now seen corresponding path program 1 times [2022-07-21 09:50:08,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:50:08,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029409460] [2022-07-21 09:50:08,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:50:08,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:50:08,220 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:50:08,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2085292586] [2022-07-21 09:50:08,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:50:08,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:50:08,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:50:08,222 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:50:08,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-21 09:50:08,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:50:08,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 3083 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-21 09:50:08,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:50:08,865 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2022-07-21 09:50:08,866 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:50:08,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:50:08,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029409460] [2022-07-21 09:50:08,866 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:50:08,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2085292586] [2022-07-21 09:50:08,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2085292586] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:50:08,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:50:08,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-21 09:50:08,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635176249] [2022-07-21 09:50:08,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:50:08,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-21 09:50:08,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:50:08,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-21 09:50:08,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-21 09:50:08,869 INFO L87 Difference]: Start difference. First operand 378 states and 536 transitions. Second operand has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 5 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (21), 4 states have call predecessors, (21), 5 states have call successors, (21) [2022-07-21 09:50:09,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:50:09,309 INFO L93 Difference]: Finished difference Result 684 states and 982 transitions. [2022-07-21 09:50:09,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 09:50:09,311 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 5 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (21), 4 states have call predecessors, (21), 5 states have call successors, (21) Word has length 234 [2022-07-21 09:50:09,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:50:09,313 INFO L225 Difference]: With dead ends: 684 [2022-07-21 09:50:09,314 INFO L226 Difference]: Without dead ends: 380 [2022-07-21 09:50:09,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2022-07-21 09:50:09,316 INFO L413 NwaCegarLoop]: 418 mSDtfsCounter, 590 mSDsluCounter, 2683 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 594 SdHoareTripleChecker+Valid, 3101 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 09:50:09,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [594 Valid, 3101 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 09:50:09,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2022-07-21 09:50:09,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 380. [2022-07-21 09:50:09,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 237 states have (on average 1.2320675105485233) internal successors, (292), 241 states have internal predecessors, (292), 115 states have call successors, (115), 24 states have call predecessors, (115), 26 states have return successors, (134), 114 states have call predecessors, (134), 113 states have call successors, (134) [2022-07-21 09:50:09,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 541 transitions. [2022-07-21 09:50:09,335 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 541 transitions. Word has length 234 [2022-07-21 09:50:09,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:50:09,335 INFO L495 AbstractCegarLoop]: Abstraction has 380 states and 541 transitions. [2022-07-21 09:50:09,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 5 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (21), 4 states have call predecessors, (21), 5 states have call successors, (21) [2022-07-21 09:50:09,336 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 541 transitions. [2022-07-21 09:50:09,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2022-07-21 09:50:09,339 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:50:09,339 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:50:09,369 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-21 09:50:09,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-07-21 09:50:09,555 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:50:09,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:50:09,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1366410168, now seen corresponding path program 1 times [2022-07-21 09:50:09,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:50:09,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123813920] [2022-07-21 09:50:09,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:50:09,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:50:09,626 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:50:09,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [639317201] [2022-07-21 09:50:09,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:50:09,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:50:09,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:50:09,629 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:50:09,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-21 09:50:10,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:50:10,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 3465 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-21 09:50:10,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:50:10,398 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2022-07-21 09:50:10,398 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:50:10,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:50:10,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123813920] [2022-07-21 09:50:10,399 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:50:10,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639317201] [2022-07-21 09:50:10,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [639317201] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:50:10,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:50:10,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 09:50:10,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238495764] [2022-07-21 09:50:10,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:50:10,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-21 09:50:10,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:50:10,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-21 09:50:10,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-07-21 09:50:10,405 INFO L87 Difference]: Start difference. First operand 380 states and 541 transitions. Second operand has 11 states, 10 states have (on average 9.9) internal successors, (99), 9 states have internal predecessors, (99), 6 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2022-07-21 09:50:10,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:50:10,974 INFO L93 Difference]: Finished difference Result 689 states and 993 transitions. [2022-07-21 09:50:10,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 09:50:10,979 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.9) internal successors, (99), 9 states have internal predecessors, (99), 6 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) Word has length 280 [2022-07-21 09:50:10,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:50:10,982 INFO L225 Difference]: With dead ends: 689 [2022-07-21 09:50:10,983 INFO L226 Difference]: Without dead ends: 383 [2022-07-21 09:50:10,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2022-07-21 09:50:10,985 INFO L413 NwaCegarLoop]: 412 mSDtfsCounter, 614 mSDsluCounter, 3011 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 618 SdHoareTripleChecker+Valid, 3423 SdHoareTripleChecker+Invalid, 839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 09:50:10,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [618 Valid, 3423 Invalid, 839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 09:50:10,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2022-07-21 09:50:11,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 381. [2022-07-21 09:50:11,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 238 states have (on average 1.23109243697479) internal successors, (293), 242 states have internal predecessors, (293), 115 states have call successors, (115), 24 states have call predecessors, (115), 26 states have return successors, (134), 114 states have call predecessors, (134), 113 states have call successors, (134) [2022-07-21 09:50:11,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 542 transitions. [2022-07-21 09:50:11,007 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 542 transitions. Word has length 280 [2022-07-21 09:50:11,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:50:11,008 INFO L495 AbstractCegarLoop]: Abstraction has 381 states and 542 transitions. [2022-07-21 09:50:11,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.9) internal successors, (99), 9 states have internal predecessors, (99), 6 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2022-07-21 09:50:11,009 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 542 transitions. [2022-07-21 09:50:11,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-07-21 09:50:11,010 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:50:11,011 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, 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, 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] [2022-07-21 09:50:11,036 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-21 09:50:11,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-07-21 09:50:11,220 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:50:11,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:50:11,220 INFO L85 PathProgramCache]: Analyzing trace with hash 473503328, now seen corresponding path program 1 times [2022-07-21 09:50:11,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:50:11,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852415158] [2022-07-21 09:50:11,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:50:11,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:50:11,291 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:50:11,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [405196499] [2022-07-21 09:50:11,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:50:11,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:50:11,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:50:11,293 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:50:11,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-21 09:50:11,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:50:11,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 3120 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-21 09:50:11,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:50:11,955 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2022-07-21 09:50:11,956 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:50:11,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:50:11,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852415158] [2022-07-21 09:50:11,956 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:50:11,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [405196499] [2022-07-21 09:50:11,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [405196499] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:50:11,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:50:11,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-21 09:50:11,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012809121] [2022-07-21 09:50:11,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:50:11,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 09:50:11,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:50:11,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 09:50:11,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 09:50:11,958 INFO L87 Difference]: Start difference. First operand 381 states and 542 transitions. Second operand has 9 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 5 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) [2022-07-21 09:50:12,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:50:12,340 INFO L93 Difference]: Finished difference Result 654 states and 938 transitions. [2022-07-21 09:50:12,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 09:50:12,341 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 5 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) Word has length 248 [2022-07-21 09:50:12,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:50:12,344 INFO L225 Difference]: With dead ends: 654 [2022-07-21 09:50:12,344 INFO L226 Difference]: Without dead ends: 388 [2022-07-21 09:50:12,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2022-07-21 09:50:12,346 INFO L413 NwaCegarLoop]: 425 mSDtfsCounter, 573 mSDsluCounter, 2347 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 2772 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 09:50:12,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 2772 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 09:50:12,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2022-07-21 09:50:12,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 383. [2022-07-21 09:50:12,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 239 states have (on average 1.2301255230125523) internal successors, (294), 244 states have internal predecessors, (294), 115 states have call successors, (115), 24 states have call predecessors, (115), 27 states have return successors, (136), 114 states have call predecessors, (136), 113 states have call successors, (136) [2022-07-21 09:50:12,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 545 transitions. [2022-07-21 09:50:12,379 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 545 transitions. Word has length 248 [2022-07-21 09:50:12,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:50:12,380 INFO L495 AbstractCegarLoop]: Abstraction has 383 states and 545 transitions. [2022-07-21 09:50:12,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 5 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) [2022-07-21 09:50:12,380 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 545 transitions. [2022-07-21 09:50:12,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2022-07-21 09:50:12,382 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:50:12,382 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:50:12,410 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-21 09:50:12,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-07-21 09:50:12,582 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:50:12,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:50:12,583 INFO L85 PathProgramCache]: Analyzing trace with hash 648621032, now seen corresponding path program 1 times [2022-07-21 09:50:12,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:50:12,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651005832] [2022-07-21 09:50:12,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:50:12,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:50:12,655 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:50:12,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1353354586] [2022-07-21 09:50:12,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:50:12,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:50:12,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:50:12,658 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:50:12,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-21 09:50:13,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:50:13,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 3311 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-21 09:50:13,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:50:13,391 INFO L134 CoverageAnalysis]: Checked inductivity of 505 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2022-07-21 09:50:13,392 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:50:13,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:50:13,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651005832] [2022-07-21 09:50:13,392 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:50:13,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1353354586] [2022-07-21 09:50:13,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1353354586] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:50:13,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:50:13,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-21 09:50:13,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419178630] [2022-07-21 09:50:13,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:50:13,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-21 09:50:13,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:50:13,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-21 09:50:13,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-21 09:50:13,395 INFO L87 Difference]: Start difference. First operand 383 states and 545 transitions. Second operand has 10 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 6 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2022-07-21 09:50:13,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:50:13,819 INFO L93 Difference]: Finished difference Result 656 states and 939 transitions. [2022-07-21 09:50:13,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 09:50:13,820 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 6 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) Word has length 271 [2022-07-21 09:50:13,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:50:13,827 INFO L225 Difference]: With dead ends: 656 [2022-07-21 09:50:13,827 INFO L226 Difference]: Without dead ends: 388 [2022-07-21 09:50:13,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2022-07-21 09:50:13,830 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 591 mSDsluCounter, 2703 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 3126 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 09:50:13,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 3126 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 09:50:13,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2022-07-21 09:50:13,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 381. [2022-07-21 09:50:13,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 238 states have (on average 1.23109243697479) internal successors, (293), 242 states have internal predecessors, (293), 115 states have call successors, (115), 24 states have call predecessors, (115), 26 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2022-07-21 09:50:13,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 540 transitions. [2022-07-21 09:50:13,850 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 540 transitions. Word has length 271 [2022-07-21 09:50:13,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:50:13,850 INFO L495 AbstractCegarLoop]: Abstraction has 381 states and 540 transitions. [2022-07-21 09:50:13,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 6 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2022-07-21 09:50:13,851 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 540 transitions. [2022-07-21 09:50:13,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2022-07-21 09:50:13,852 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:50:13,852 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:50:13,885 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-07-21 09:50:14,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:50:14,067 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:50:14,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:50:14,068 INFO L85 PathProgramCache]: Analyzing trace with hash 451085598, now seen corresponding path program 1 times [2022-07-21 09:50:14,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:50:14,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512661105] [2022-07-21 09:50:14,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:50:14,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:50:14,129 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:50:14,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1669072556] [2022-07-21 09:50:14,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:50:14,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:50:14,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:50:14,131 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:50:14,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-21 09:50:14,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:50:14,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 3383 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-21 09:50:14,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:50:14,900 INFO L134 CoverageAnalysis]: Checked inductivity of 557 backedges. 213 proven. 0 refuted. 0 times theorem prover too weak. 344 trivial. 0 not checked. [2022-07-21 09:50:14,901 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:50:14,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:50:14,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512661105] [2022-07-21 09:50:14,901 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:50:14,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669072556] [2022-07-21 09:50:14,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1669072556] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:50:14,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:50:14,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 09:50:14,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340603139] [2022-07-21 09:50:14,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:50:14,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-21 09:50:14,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:50:14,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-21 09:50:14,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-07-21 09:50:14,902 INFO L87 Difference]: Start difference. First operand 381 states and 540 transitions. Second operand has 11 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 7 states have call successors, (29), 3 states have call predecessors, (29), 4 states have return successors, (26), 6 states have call predecessors, (26), 7 states have call successors, (26) [2022-07-21 09:50:15,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:50:15,376 INFO L93 Difference]: Finished difference Result 670 states and 960 transitions. [2022-07-21 09:50:15,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 09:50:15,377 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 7 states have call successors, (29), 3 states have call predecessors, (29), 4 states have return successors, (26), 6 states have call predecessors, (26), 7 states have call successors, (26) Word has length 287 [2022-07-21 09:50:15,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:50:15,380 INFO L225 Difference]: With dead ends: 670 [2022-07-21 09:50:15,380 INFO L226 Difference]: Without dead ends: 404 [2022-07-21 09:50:15,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-07-21 09:50:15,383 INFO L413 NwaCegarLoop]: 445 mSDtfsCounter, 198 mSDsluCounter, 3621 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 4066 SdHoareTripleChecker+Invalid, 758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 09:50:15,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 4066 Invalid, 758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 697 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 09:50:15,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2022-07-21 09:50:15,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 397. [2022-07-21 09:50:15,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 252 states have (on average 1.2380952380952381) internal successors, (312), 256 states have internal predecessors, (312), 116 states have call successors, (116), 24 states have call predecessors, (116), 27 states have return successors, (137), 116 states have call predecessors, (137), 114 states have call successors, (137) [2022-07-21 09:50:15,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 565 transitions. [2022-07-21 09:50:15,409 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 565 transitions. Word has length 287 [2022-07-21 09:50:15,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:50:15,409 INFO L495 AbstractCegarLoop]: Abstraction has 397 states and 565 transitions. [2022-07-21 09:50:15,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 7 states have call successors, (29), 3 states have call predecessors, (29), 4 states have return successors, (26), 6 states have call predecessors, (26), 7 states have call successors, (26) [2022-07-21 09:50:15,409 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 565 transitions. [2022-07-21 09:50:15,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-07-21 09:50:15,411 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:50:15,411 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:50:15,441 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-07-21 09:50:15,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-07-21 09:50:15,638 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:50:15,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:50:15,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1306212493, now seen corresponding path program 2 times [2022-07-21 09:50:15,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:50:15,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984747866] [2022-07-21 09:50:15,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:50:15,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:50:15,708 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:50:15,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1014134604] [2022-07-21 09:50:15,709 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 09:50:15,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:50:15,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:50:15,710 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:50:15,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-07-21 09:50:16,488 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-21 09:50:16,488 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 09:50:16,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 3524 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-21 09:50:16,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:50:16,607 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 611 trivial. 0 not checked. [2022-07-21 09:50:16,608 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:50:16,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:50:16,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984747866] [2022-07-21 09:50:16,610 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:50:16,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1014134604] [2022-07-21 09:50:16,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1014134604] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:50:16,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:50:16,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-21 09:50:16,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904377722] [2022-07-21 09:50:16,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:50:16,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-21 09:50:16,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:50:16,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-21 09:50:16,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-21 09:50:16,613 INFO L87 Difference]: Start difference. First operand 397 states and 565 transitions. Second operand has 10 states, 10 states have (on average 7.3) internal successors, (73), 8 states have internal predecessors, (73), 6 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (24), 6 states have call predecessors, (24), 5 states have call successors, (24) [2022-07-21 09:50:16,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:50:16,937 INFO L93 Difference]: Finished difference Result 691 states and 990 transitions. [2022-07-21 09:50:16,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 09:50:16,938 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 8 states have internal predecessors, (73), 6 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (24), 6 states have call predecessors, (24), 5 states have call successors, (24) Word has length 302 [2022-07-21 09:50:16,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:50:16,943 INFO L225 Difference]: With dead ends: 691 [2022-07-21 09:50:16,943 INFO L226 Difference]: Without dead ends: 414 [2022-07-21 09:50:16,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-07-21 09:50:16,945 INFO L413 NwaCegarLoop]: 463 mSDtfsCounter, 123 mSDsluCounter, 3380 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 3843 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 09:50:16,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 3843 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 09:50:16,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2022-07-21 09:50:16,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 409. [2022-07-21 09:50:16,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 258 states have (on average 1.2364341085271318) internal successors, (319), 262 states have internal predecessors, (319), 121 states have call successors, (121), 25 states have call predecessors, (121), 28 states have return successors, (142), 121 states have call predecessors, (142), 119 states have call successors, (142) [2022-07-21 09:50:16,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 582 transitions. [2022-07-21 09:50:16,966 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 582 transitions. Word has length 302 [2022-07-21 09:50:16,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:50:16,966 INFO L495 AbstractCegarLoop]: Abstraction has 409 states and 582 transitions. [2022-07-21 09:50:16,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 8 states have internal predecessors, (73), 6 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (24), 6 states have call predecessors, (24), 5 states have call successors, (24) [2022-07-21 09:50:16,967 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 582 transitions. [2022-07-21 09:50:16,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2022-07-21 09:50:16,968 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:50:16,969 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:50:17,002 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-07-21 09:50:17,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-07-21 09:50:17,196 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:50:17,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:50:17,196 INFO L85 PathProgramCache]: Analyzing trace with hash 386011154, now seen corresponding path program 1 times [2022-07-21 09:50:17,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:50:17,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771967913] [2022-07-21 09:50:17,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:50:17,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:50:17,262 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:50:17,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1189666739] [2022-07-21 09:50:17,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:50:17,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:50:17,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:50:17,265 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:50:17,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-07-21 09:50:17,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:50:17,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 3327 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-21 09:50:17,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:50:18,003 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 214 proven. 3 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-07-21 09:50:18,004 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 09:50:18,350 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 50 proven. 28 refuted. 0 times theorem prover too weak. 403 trivial. 0 not checked. [2022-07-21 09:50:18,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:50:18,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771967913] [2022-07-21 09:50:18,351 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:50:18,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189666739] [2022-07-21 09:50:18,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1189666739] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 09:50:18,351 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 09:50:18,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 18 [2022-07-21 09:50:18,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439640977] [2022-07-21 09:50:18,352 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 09:50:18,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-21 09:50:18,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:50:18,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-21 09:50:18,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2022-07-21 09:50:18,354 INFO L87 Difference]: Start difference. First operand 409 states and 582 transitions. Second operand has 18 states, 16 states have (on average 8.3125) internal successors, (133), 14 states have internal predecessors, (133), 11 states have call successors, (46), 6 states have call predecessors, (46), 4 states have return successors, (41), 7 states have call predecessors, (41), 11 states have call successors, (41) [2022-07-21 09:50:18,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:50:18,760 INFO L93 Difference]: Finished difference Result 763 states and 1095 transitions. [2022-07-21 09:50:18,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 09:50:18,761 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 8.3125) internal successors, (133), 14 states have internal predecessors, (133), 11 states have call successors, (46), 6 states have call predecessors, (46), 4 states have return successors, (41), 7 states have call predecessors, (41), 11 states have call successors, (41) Word has length 282 [2022-07-21 09:50:18,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:50:18,766 INFO L225 Difference]: With dead ends: 763 [2022-07-21 09:50:18,766 INFO L226 Difference]: Without dead ends: 428 [2022-07-21 09:50:18,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 567 GetRequests, 547 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=398, Unknown=0, NotChecked=0, Total=462 [2022-07-21 09:50:18,768 INFO L413 NwaCegarLoop]: 444 mSDtfsCounter, 388 mSDsluCounter, 3225 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 3669 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 09:50:18,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 3669 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 09:50:18,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2022-07-21 09:50:18,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 422. [2022-07-21 09:50:18,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 270 states have (on average 1.2444444444444445) internal successors, (336), 273 states have internal predecessors, (336), 122 states have call successors, (122), 25 states have call predecessors, (122), 28 states have return successors, (141), 123 states have call predecessors, (141), 120 states have call successors, (141) [2022-07-21 09:50:18,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 599 transitions. [2022-07-21 09:50:18,789 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 599 transitions. Word has length 282 [2022-07-21 09:50:18,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:50:18,789 INFO L495 AbstractCegarLoop]: Abstraction has 422 states and 599 transitions. [2022-07-21 09:50:18,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 8.3125) internal successors, (133), 14 states have internal predecessors, (133), 11 states have call successors, (46), 6 states have call predecessors, (46), 4 states have return successors, (41), 7 states have call predecessors, (41), 11 states have call successors, (41) [2022-07-21 09:50:18,790 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 599 transitions. [2022-07-21 09:50:18,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2022-07-21 09:50:18,792 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:50:18,792 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:50:18,825 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-07-21 09:50:19,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-07-21 09:50:19,008 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:50:19,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:50:19,008 INFO L85 PathProgramCache]: Analyzing trace with hash -303731720, now seen corresponding path program 2 times [2022-07-21 09:50:19,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:50:19,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846668453] [2022-07-21 09:50:19,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:50:19,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:50:19,080 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:50:19,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1366825325] [2022-07-21 09:50:19,080 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 09:50:19,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:50:19,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:50:19,082 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:50:19,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-07-21 09:50:19,565 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-21 09:50:19,565 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 09:50:19,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 1930 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-21 09:50:19,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:50:19,667 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2022-07-21 09:50:19,667 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:50:19,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:50:19,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846668453] [2022-07-21 09:50:19,668 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:50:19,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366825325] [2022-07-21 09:50:19,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1366825325] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:50:19,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:50:19,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 09:50:19,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193660576] [2022-07-21 09:50:19,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:50:19,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 09:50:19,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:50:19,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 09:50:19,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 09:50:19,670 INFO L87 Difference]: Start difference. First operand 422 states and 599 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2022-07-21 09:50:19,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:50:19,971 INFO L93 Difference]: Finished difference Result 880 states and 1287 transitions. [2022-07-21 09:50:19,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 09:50:19,972 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) Word has length 312 [2022-07-21 09:50:19,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:50:19,976 INFO L225 Difference]: With dead ends: 880 [2022-07-21 09:50:19,976 INFO L226 Difference]: Without dead ends: 494 [2022-07-21 09:50:19,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-07-21 09:50:19,979 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 21 mSDsluCounter, 1763 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2247 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 09:50:19,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2247 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 09:50:19,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2022-07-21 09:50:20,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 438. [2022-07-21 09:50:20,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 286 states have (on average 1.2447552447552448) internal successors, (356), 289 states have internal predecessors, (356), 122 states have call successors, (122), 25 states have call predecessors, (122), 28 states have return successors, (141), 123 states have call predecessors, (141), 120 states have call successors, (141) [2022-07-21 09:50:20,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 619 transitions. [2022-07-21 09:50:20,020 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 619 transitions. Word has length 312 [2022-07-21 09:50:20,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:50:20,021 INFO L495 AbstractCegarLoop]: Abstraction has 438 states and 619 transitions. [2022-07-21 09:50:20,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2022-07-21 09:50:20,021 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 619 transitions. [2022-07-21 09:50:20,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2022-07-21 09:50:20,023 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:50:20,023 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:50:20,057 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-07-21 09:50:20,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:50:20,251 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:50:20,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:50:20,251 INFO L85 PathProgramCache]: Analyzing trace with hash 293720926, now seen corresponding path program 1 times [2022-07-21 09:50:20,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:50:20,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724616269] [2022-07-21 09:50:20,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:50:20,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:50:20,323 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:50:20,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [222057359] [2022-07-21 09:50:20,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:50:20,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:50:20,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:50:20,326 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:50:20,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-07-21 09:50:20,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:50:21,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 3879 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 09:50:21,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:50:21,029 INFO L134 CoverageAnalysis]: Checked inductivity of 811 backedges. 342 proven. 0 refuted. 0 times theorem prover too weak. 469 trivial. 0 not checked. [2022-07-21 09:50:21,029 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:50:21,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:50:21,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724616269] [2022-07-21 09:50:21,030 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:50:21,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [222057359] [2022-07-21 09:50:21,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [222057359] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:50:21,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:50:21,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 09:50:21,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457965636] [2022-07-21 09:50:21,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:50:21,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 09:50:21,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:50:21,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 09:50:21,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 09:50:21,032 INFO L87 Difference]: Start difference. First operand 438 states and 619 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-21 09:50:21,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:50:21,067 INFO L93 Difference]: Finished difference Result 856 states and 1235 transitions. [2022-07-21 09:50:21,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 09:50:21,067 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 342 [2022-07-21 09:50:21,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:50:21,071 INFO L225 Difference]: With dead ends: 856 [2022-07-21 09:50:21,071 INFO L226 Difference]: Without dead ends: 454 [2022-07-21 09:50:21,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 09:50:21,074 INFO L413 NwaCegarLoop]: 483 mSDtfsCounter, 3 mSDsluCounter, 961 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 09:50:21,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1444 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 09:50:21,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2022-07-21 09:50:21,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 446. [2022-07-21 09:50:21,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 294 states have (on average 1.2380952380952381) internal successors, (364), 297 states have internal predecessors, (364), 122 states have call successors, (122), 25 states have call predecessors, (122), 28 states have return successors, (141), 123 states have call predecessors, (141), 120 states have call successors, (141) [2022-07-21 09:50:21,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 627 transitions. [2022-07-21 09:50:21,104 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 627 transitions. Word has length 342 [2022-07-21 09:50:21,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:50:21,104 INFO L495 AbstractCegarLoop]: Abstraction has 446 states and 627 transitions. [2022-07-21 09:50:21,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-21 09:50:21,105 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 627 transitions. [2022-07-21 09:50:21,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2022-07-21 09:50:21,107 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:50:21,107 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:50:21,140 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-07-21 09:50:21,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:50:21,335 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:50:21,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:50:21,336 INFO L85 PathProgramCache]: Analyzing trace with hash 696410342, now seen corresponding path program 1 times [2022-07-21 09:50:21,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:50:21,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3624265] [2022-07-21 09:50:21,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:50:21,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:50:21,408 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:50:21,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1442115318] [2022-07-21 09:50:21,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:50:21,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:50:21,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:50:21,410 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:50:21,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-07-21 09:50:22,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:50:22,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 3859 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-21 09:50:22,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:50:22,249 INFO L134 CoverageAnalysis]: Checked inductivity of 811 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 523 trivial. 0 not checked. [2022-07-21 09:50:22,250 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:50:22,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:50:22,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3624265] [2022-07-21 09:50:22,250 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:50:22,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442115318] [2022-07-21 09:50:22,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1442115318] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:50:22,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:50:22,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 09:50:22,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944819398] [2022-07-21 09:50:22,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:50:22,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 09:50:22,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:50:22,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 09:50:22,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 09:50:22,252 INFO L87 Difference]: Start difference. First operand 446 states and 627 transitions. Second operand has 6 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 4 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-07-21 09:50:22,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:50:22,395 INFO L93 Difference]: Finished difference Result 848 states and 1207 transitions. [2022-07-21 09:50:22,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 09:50:22,396 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 4 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 342 [2022-07-21 09:50:22,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:50:22,399 INFO L225 Difference]: With dead ends: 848 [2022-07-21 09:50:22,400 INFO L226 Difference]: Without dead ends: 481 [2022-07-21 09:50:22,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-21 09:50:22,402 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 77 mSDsluCounter, 1980 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 2510 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 09:50:22,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 2510 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 09:50:22,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2022-07-21 09:50:22,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 442. [2022-07-21 09:50:22,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 290 states have (on average 1.2344827586206897) internal successors, (358), 293 states have internal predecessors, (358), 122 states have call successors, (122), 25 states have call predecessors, (122), 28 states have return successors, (141), 123 states have call predecessors, (141), 120 states have call successors, (141) [2022-07-21 09:50:22,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 621 transitions. [2022-07-21 09:50:22,423 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 621 transitions. Word has length 342 [2022-07-21 09:50:22,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:50:22,424 INFO L495 AbstractCegarLoop]: Abstraction has 442 states and 621 transitions. [2022-07-21 09:50:22,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 4 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-07-21 09:50:22,424 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 621 transitions. [2022-07-21 09:50:22,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-07-21 09:50:22,426 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:50:22,426 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:50:22,459 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-07-21 09:50:22,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-07-21 09:50:22,651 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:50:22,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:50:22,652 INFO L85 PathProgramCache]: Analyzing trace with hash -634741136, now seen corresponding path program 1 times [2022-07-21 09:50:22,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:50:22,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138832953] [2022-07-21 09:50:22,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:50:22,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:50:22,717 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:50:22,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [684512652] [2022-07-21 09:50:22,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:50:22,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:50:22,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:50:22,720 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:50:22,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-07-21 09:50:23,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:50:23,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 3641 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-21 09:50:23,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:50:23,507 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 360 proven. 3 refuted. 0 times theorem prover too weak. 359 trivial. 0 not checked. [2022-07-21 09:50:23,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 09:50:23,931 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 50 proven. 9 refuted. 0 times theorem prover too weak. 663 trivial. 0 not checked. [2022-07-21 09:50:23,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:50:23,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138832953] [2022-07-21 09:50:23,932 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:50:23,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684512652] [2022-07-21 09:50:23,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684512652] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 09:50:23,932 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 09:50:23,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2022-07-21 09:50:23,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748736462] [2022-07-21 09:50:23,932 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 09:50:23,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-21 09:50:23,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:50:23,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-21 09:50:23,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-07-21 09:50:23,934 INFO L87 Difference]: Start difference. First operand 442 states and 621 transitions. Second operand has 16 states, 14 states have (on average 8.928571428571429) internal successors, (125), 14 states have internal predecessors, (125), 11 states have call successors, (51), 4 states have call predecessors, (51), 4 states have return successors, (47), 7 states have call predecessors, (47), 11 states have call successors, (47) [2022-07-21 09:50:24,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:50:24,342 INFO L93 Difference]: Finished difference Result 781 states and 1102 transitions. [2022-07-21 09:50:24,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 09:50:24,348 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 8.928571428571429) internal successors, (125), 14 states have internal predecessors, (125), 11 states have call successors, (51), 4 states have call predecessors, (51), 4 states have return successors, (47), 7 states have call predecessors, (47), 11 states have call successors, (47) Word has length 317 [2022-07-21 09:50:24,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:50:24,351 INFO L225 Difference]: With dead ends: 781 [2022-07-21 09:50:24,351 INFO L226 Difference]: Without dead ends: 450 [2022-07-21 09:50:24,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 638 GetRequests, 620 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2022-07-21 09:50:24,354 INFO L413 NwaCegarLoop]: 442 mSDtfsCounter, 259 mSDsluCounter, 3192 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 3634 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 09:50:24,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 3634 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 09:50:24,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2022-07-21 09:50:24,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 420. [2022-07-21 09:50:24,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 270 states have (on average 1.2296296296296296) internal successors, (332), 273 states have internal predecessors, (332), 121 states have call successors, (121), 25 states have call predecessors, (121), 27 states have return successors, (136), 121 states have call predecessors, (136), 119 states have call successors, (136) [2022-07-21 09:50:24,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 589 transitions. [2022-07-21 09:50:24,375 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 589 transitions. Word has length 317 [2022-07-21 09:50:24,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:50:24,376 INFO L495 AbstractCegarLoop]: Abstraction has 420 states and 589 transitions. [2022-07-21 09:50:24,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 8.928571428571429) internal successors, (125), 14 states have internal predecessors, (125), 11 states have call successors, (51), 4 states have call predecessors, (51), 4 states have return successors, (47), 7 states have call predecessors, (47), 11 states have call successors, (47) [2022-07-21 09:50:24,377 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 589 transitions. [2022-07-21 09:50:24,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2022-07-21 09:50:24,378 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:50:24,379 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:50:24,409 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-07-21 09:50:24,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-07-21 09:50:24,607 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:50:24,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:50:24,608 INFO L85 PathProgramCache]: Analyzing trace with hash 2117085201, now seen corresponding path program 1 times [2022-07-21 09:50:24,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:50:24,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288149436] [2022-07-21 09:50:24,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:50:24,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:50:24,674 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:50:24,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1120438308] [2022-07-21 09:50:24,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:50:24,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:50:24,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:50:24,676 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:50:24,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-07-21 09:50:25,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:50:25,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 3782 conjuncts, 38 conjunts are in the unsatisfiable core [2022-07-21 09:50:25,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:50:25,614 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2022-07-21 09:50:25,630 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 357 proven. 0 refuted. 0 times theorem prover too weak. 470 trivial. 0 not checked. [2022-07-21 09:50:25,631 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:50:25,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:50:25,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288149436] [2022-07-21 09:50:25,631 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:50:25,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120438308] [2022-07-21 09:50:25,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120438308] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:50:25,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:50:25,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-21 09:50:25,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674053447] [2022-07-21 09:50:25,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:50:25,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-21 09:50:25,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:50:25,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-21 09:50:25,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-07-21 09:50:25,633 INFO L87 Difference]: Start difference. First operand 420 states and 589 transitions. Second operand has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 6 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (29), 6 states have call predecessors, (29), 6 states have call successors, (29) [2022-07-21 09:50:26,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:50:26,313 INFO L93 Difference]: Finished difference Result 853 states and 1235 transitions. [2022-07-21 09:50:26,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 09:50:26,314 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 6 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (29), 6 states have call predecessors, (29), 6 states have call successors, (29) Word has length 332 [2022-07-21 09:50:26,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:50:26,317 INFO L225 Difference]: With dead ends: 853 [2022-07-21 09:50:26,317 INFO L226 Difference]: Without dead ends: 465 [2022-07-21 09:50:26,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2022-07-21 09:50:26,320 INFO L413 NwaCegarLoop]: 458 mSDtfsCounter, 104 mSDsluCounter, 3321 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 3779 SdHoareTripleChecker+Invalid, 768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 09:50:26,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 3779 Invalid, 768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 09:50:26,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2022-07-21 09:50:26,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 443. [2022-07-21 09:50:26,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 292 states have (on average 1.2328767123287672) internal successors, (360), 294 states have internal predecessors, (360), 121 states have call successors, (121), 25 states have call predecessors, (121), 28 states have return successors, (149), 123 states have call predecessors, (149), 119 states have call successors, (149) [2022-07-21 09:50:26,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 630 transitions. [2022-07-21 09:50:26,346 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 630 transitions. Word has length 332 [2022-07-21 09:50:26,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:50:26,346 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 630 transitions. [2022-07-21 09:50:26,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 6 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (29), 6 states have call predecessors, (29), 6 states have call successors, (29) [2022-07-21 09:50:26,347 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 630 transitions. [2022-07-21 09:50:26,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2022-07-21 09:50:26,350 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:50:26,350 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:50:26,384 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-07-21 09:50:26,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:50:26,563 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:50:26,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:50:26,564 INFO L85 PathProgramCache]: Analyzing trace with hash -201858609, now seen corresponding path program 1 times [2022-07-21 09:50:26,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:50:26,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508283401] [2022-07-21 09:50:26,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:50:26,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:50:26,636 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:50:26,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [737415060] [2022-07-21 09:50:26,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:50:26,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:50:26,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:50:26,639 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:50:26,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-07-21 09:50:27,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:50:27,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 3791 conjuncts, 24 conjunts are in the unsatisfiable core [2022-07-21 09:50:27,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:50:27,414 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 356 proven. 0 refuted. 0 times theorem prover too weak. 471 trivial. 0 not checked. [2022-07-21 09:50:27,415 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:50:27,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:50:27,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508283401] [2022-07-21 09:50:27,415 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:50:27,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [737415060] [2022-07-21 09:50:27,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [737415060] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:50:27,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:50:27,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 09:50:27,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138359493] [2022-07-21 09:50:27,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:50:27,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 09:50:27,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:50:27,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 09:50:27,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 09:50:27,417 INFO L87 Difference]: Start difference. First operand 443 states and 630 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-21 09:50:27,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:50:27,466 INFO L93 Difference]: Finished difference Result 896 states and 1304 transitions. [2022-07-21 09:50:27,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 09:50:27,467 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 332 [2022-07-21 09:50:27,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:50:27,470 INFO L225 Difference]: With dead ends: 896 [2022-07-21 09:50:27,470 INFO L226 Difference]: Without dead ends: 489 [2022-07-21 09:50:27,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 09:50:27,474 INFO L413 NwaCegarLoop]: 500 mSDtfsCounter, 8 mSDsluCounter, 1476 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1976 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 09:50:27,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1976 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 09:50:27,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2022-07-21 09:50:27,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 471. [2022-07-21 09:50:27,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 320 states have (on average 1.23125) internal successors, (394), 322 states have internal predecessors, (394), 121 states have call successors, (121), 25 states have call predecessors, (121), 28 states have return successors, (149), 123 states have call predecessors, (149), 119 states have call successors, (149) [2022-07-21 09:50:27,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 664 transitions. [2022-07-21 09:50:27,497 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 664 transitions. Word has length 332 [2022-07-21 09:50:27,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:50:27,497 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 664 transitions. [2022-07-21 09:50:27,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-21 09:50:27,497 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 664 transitions. [2022-07-21 09:50:27,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2022-07-21 09:50:27,500 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:50:27,500 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:50:27,532 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-07-21 09:50:27,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:50:27,713 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:50:27,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:50:27,713 INFO L85 PathProgramCache]: Analyzing trace with hash -313018033, now seen corresponding path program 1 times [2022-07-21 09:50:27,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:50:27,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219861309] [2022-07-21 09:50:27,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:50:27,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:50:27,779 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:50:27,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [588523537] [2022-07-21 09:50:27,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:50:27,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:50:27,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:50:27,781 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:50:27,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-07-21 09:50:28,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:50:28,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 3797 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 09:50:28,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:50:28,573 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 344 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2022-07-21 09:50:28,574 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:50:28,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:50:28,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219861309] [2022-07-21 09:50:28,574 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:50:28,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [588523537] [2022-07-21 09:50:28,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [588523537] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:50:28,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:50:28,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 09:50:28,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890992689] [2022-07-21 09:50:28,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:50:28,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 09:50:28,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:50:28,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 09:50:28,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 09:50:28,576 INFO L87 Difference]: Start difference. First operand 471 states and 664 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-21 09:50:28,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:50:28,613 INFO L93 Difference]: Finished difference Result 895 states and 1284 transitions. [2022-07-21 09:50:28,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 09:50:28,614 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 332 [2022-07-21 09:50:28,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:50:28,617 INFO L225 Difference]: With dead ends: 895 [2022-07-21 09:50:28,617 INFO L226 Difference]: Without dead ends: 460 [2022-07-21 09:50:28,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 09:50:28,621 INFO L413 NwaCegarLoop]: 482 mSDtfsCounter, 2 mSDsluCounter, 953 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1435 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 09:50:28,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1435 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 09:50:28,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2022-07-21 09:50:28,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 451. [2022-07-21 09:50:28,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 300 states have (on average 1.21) internal successors, (363), 302 states have internal predecessors, (363), 121 states have call successors, (121), 25 states have call predecessors, (121), 28 states have return successors, (149), 123 states have call predecessors, (149), 119 states have call successors, (149) [2022-07-21 09:50:28,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 633 transitions. [2022-07-21 09:50:28,642 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 633 transitions. Word has length 332 [2022-07-21 09:50:28,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:50:28,642 INFO L495 AbstractCegarLoop]: Abstraction has 451 states and 633 transitions. [2022-07-21 09:50:28,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-21 09:50:28,643 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 633 transitions. [2022-07-21 09:50:28,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2022-07-21 09:50:28,645 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:50:28,645 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:50:28,676 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-07-21 09:50:28,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-07-21 09:50:28,859 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:50:28,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:50:28,860 INFO L85 PathProgramCache]: Analyzing trace with hash -12708465, now seen corresponding path program 1 times [2022-07-21 09:50:28,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:50:28,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898588179] [2022-07-21 09:50:28,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:50:28,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:50:28,916 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:50:28,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [792378361] [2022-07-21 09:50:28,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:50:28,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:50:28,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:50:28,918 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:50:28,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-07-21 09:50:29,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:50:29,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 3767 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 09:50:29,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:50:29,629 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked. [2022-07-21 09:50:29,629 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:50:29,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:50:29,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898588179] [2022-07-21 09:50:29,630 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:50:29,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [792378361] [2022-07-21 09:50:29,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [792378361] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:50:29,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:50:29,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 09:50:29,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880505615] [2022-07-21 09:50:29,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:50:29,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 09:50:29,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:50:29,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 09:50:29,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 09:50:29,634 INFO L87 Difference]: Start difference. First operand 451 states and 633 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-21 09:50:29,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:50:29,669 INFO L93 Difference]: Finished difference Result 866 states and 1261 transitions. [2022-07-21 09:50:29,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 09:50:29,670 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 332 [2022-07-21 09:50:29,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:50:29,673 INFO L225 Difference]: With dead ends: 866 [2022-07-21 09:50:29,673 INFO L226 Difference]: Without dead ends: 451 [2022-07-21 09:50:29,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 09:50:29,677 INFO L413 NwaCegarLoop]: 486 mSDtfsCounter, 7 mSDsluCounter, 952 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1438 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 09:50:29,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1438 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 09:50:29,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2022-07-21 09:50:29,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 451. [2022-07-21 09:50:29,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 300 states have (on average 1.2066666666666668) internal successors, (362), 302 states have internal predecessors, (362), 121 states have call successors, (121), 25 states have call predecessors, (121), 28 states have return successors, (149), 123 states have call predecessors, (149), 119 states have call successors, (149) [2022-07-21 09:50:29,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 632 transitions. [2022-07-21 09:50:29,699 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 632 transitions. Word has length 332 [2022-07-21 09:50:29,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:50:29,699 INFO L495 AbstractCegarLoop]: Abstraction has 451 states and 632 transitions. [2022-07-21 09:50:29,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-21 09:50:29,700 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 632 transitions. [2022-07-21 09:50:29,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2022-07-21 09:50:29,702 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:50:29,702 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:50:29,735 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-07-21 09:50:29,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-07-21 09:50:29,915 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:50:29,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:50:29,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1623540425, now seen corresponding path program 1 times [2022-07-21 09:50:29,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:50:29,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855679515] [2022-07-21 09:50:29,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:50:29,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:50:29,974 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:50:29,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1256640629] [2022-07-21 09:50:29,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:50:29,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:50:29,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:50:29,976 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:50:30,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-07-21 09:50:30,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:50:30,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 3782 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-21 09:50:30,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:50:30,779 INFO L134 CoverageAnalysis]: Checked inductivity of 833 backedges. 326 proven. 0 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2022-07-21 09:50:30,780 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:50:30,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:50:30,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855679515] [2022-07-21 09:50:30,780 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:50:30,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1256640629] [2022-07-21 09:50:30,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1256640629] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:50:30,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:50:30,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 09:50:30,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611558382] [2022-07-21 09:50:30,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:50:30,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 09:50:30,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:50:30,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 09:50:30,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 09:50:30,783 INFO L87 Difference]: Start difference. First operand 451 states and 632 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-21 09:50:30,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:50:30,984 INFO L93 Difference]: Finished difference Result 866 states and 1259 transitions. [2022-07-21 09:50:30,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 09:50:30,985 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 338 [2022-07-21 09:50:30,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:50:30,989 INFO L225 Difference]: With dead ends: 866 [2022-07-21 09:50:30,990 INFO L226 Difference]: Without dead ends: 451 [2022-07-21 09:50:30,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 09:50:30,993 INFO L413 NwaCegarLoop]: 492 mSDtfsCounter, 7 mSDsluCounter, 1356 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1848 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 09:50:30,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1848 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 09:50:30,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2022-07-21 09:50:31,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 451. [2022-07-21 09:50:31,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 300 states have (on average 1.2033333333333334) internal successors, (361), 302 states have internal predecessors, (361), 121 states have call successors, (121), 25 states have call predecessors, (121), 28 states have return successors, (149), 123 states have call predecessors, (149), 119 states have call successors, (149) [2022-07-21 09:50:31,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 631 transitions. [2022-07-21 09:50:31,017 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 631 transitions. Word has length 338 [2022-07-21 09:50:31,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:50:31,017 INFO L495 AbstractCegarLoop]: Abstraction has 451 states and 631 transitions. [2022-07-21 09:50:31,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-21 09:50:31,017 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 631 transitions. [2022-07-21 09:50:31,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2022-07-21 09:50:31,020 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:50:31,020 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:50:31,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-07-21 09:50:31,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-07-21 09:50:31,236 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:50:31,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:50:31,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1177846795, now seen corresponding path program 1 times [2022-07-21 09:50:31,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:50:31,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029056767] [2022-07-21 09:50:31,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:50:31,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:50:31,307 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:50:31,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1161086727] [2022-07-21 09:50:31,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:50:31,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:50:31,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:50:31,309 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:50:31,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-07-21 09:50:32,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:50:32,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 3797 conjuncts, 85 conjunts are in the unsatisfiable core [2022-07-21 09:50:32,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:50:32,847 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2022-07-21 09:50:32,849 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-07-21 09:50:32,873 INFO L134 CoverageAnalysis]: Checked inductivity of 833 backedges. 425 proven. 0 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2022-07-21 09:50:32,874 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:50:32,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:50:32,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029056767] [2022-07-21 09:50:32,874 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:50:32,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161086727] [2022-07-21 09:50:32,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1161086727] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:50:32,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:50:32,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-07-21 09:50:32,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053077565] [2022-07-21 09:50:32,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:50:32,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-21 09:50:32,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:50:32,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-21 09:50:32,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-07-21 09:50:32,876 INFO L87 Difference]: Start difference. First operand 451 states and 631 transitions. Second operand has 17 states, 17 states have (on average 7.0588235294117645) internal successors, (120), 16 states have internal predecessors, (120), 7 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (29), 7 states have call predecessors, (29), 7 states have call successors, (29) [2022-07-21 09:50:33,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:50:33,928 INFO L93 Difference]: Finished difference Result 937 states and 1327 transitions. [2022-07-21 09:50:33,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-21 09:50:33,929 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 7.0588235294117645) internal successors, (120), 16 states have internal predecessors, (120), 7 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (29), 7 states have call predecessors, (29), 7 states have call successors, (29) Word has length 338 [2022-07-21 09:50:33,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:50:33,932 INFO L225 Difference]: With dead ends: 937 [2022-07-21 09:50:33,932 INFO L226 Difference]: Without dead ends: 548 [2022-07-21 09:50:33,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 320 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=115, Invalid=641, Unknown=0, NotChecked=0, Total=756 [2022-07-21 09:50:33,935 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 165 mSDsluCounter, 4910 mSDsCounter, 0 mSdLazyCounter, 1003 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 5356 SdHoareTripleChecker+Invalid, 1145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1003 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 108 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 09:50:33,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 5356 Invalid, 1145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1003 Invalid, 0 Unknown, 108 Unchecked, 0.7s Time] [2022-07-21 09:50:33,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2022-07-21 09:50:33,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 484. [2022-07-21 09:50:33,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 327 states have (on average 1.1957186544342508) internal successors, (391), 329 states have internal predecessors, (391), 124 states have call successors, (124), 26 states have call predecessors, (124), 31 states have return successors, (175), 128 states have call predecessors, (175), 122 states have call successors, (175) [2022-07-21 09:50:33,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 690 transitions. [2022-07-21 09:50:33,961 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 690 transitions. Word has length 338 [2022-07-21 09:50:33,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:50:33,961 INFO L495 AbstractCegarLoop]: Abstraction has 484 states and 690 transitions. [2022-07-21 09:50:33,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 7.0588235294117645) internal successors, (120), 16 states have internal predecessors, (120), 7 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (29), 7 states have call predecessors, (29), 7 states have call successors, (29) [2022-07-21 09:50:33,962 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 690 transitions. [2022-07-21 09:50:33,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2022-07-21 09:50:33,964 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:50:33,964 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:50:34,001 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-07-21 09:50:34,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-07-21 09:50:34,179 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:50:34,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:50:34,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1243371206, now seen corresponding path program 1 times [2022-07-21 09:50:34,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:50:34,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873882396] [2022-07-21 09:50:34,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:50:34,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:50:34,251 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:50:34,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1163563381] [2022-07-21 09:50:34,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:50:34,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:50:34,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:50:34,253 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:50:34,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-07-21 09:50:35,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:50:35,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 3799 conjuncts, 255 conjunts are in the unsatisfiable core [2022-07-21 09:50:35,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:50:35,403 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_5208 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5208) |c_#memory_$Pointer$.offset|)) (exists ((v_ArrVal_5207 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5207))))) is different from true [2022-07-21 09:50:35,421 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5208 (Array Int Int)) (v_ArrVal_5207 (Array Int Int))) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5207)) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5208) |c_#memory_$Pointer$.offset|))) is different from true [2022-07-21 09:50:35,474 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-21 09:50:35,474 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-07-21 09:50:35,489 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-21 09:50:35,489 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-07-21 09:50:35,494 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-07-21 09:50:35,496 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-07-21 09:50:35,764 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_5209 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5209))) (exists ((v_ArrVal_5210 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5210) |c_#memory_$Pointer$.offset|)))) is different from true [2022-07-21 09:50:36,222 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_5211 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5211))) (exists ((v_ArrVal_5212 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5212) |c_#memory_$Pointer$.base|)))) is different from true [2022-07-21 09:50:36,241 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5211 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5212 (Array Int Int))) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5211)) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5212) |c_#memory_$Pointer$.base|))) is different from true [2022-07-21 09:50:36,309 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5211 (Array Int Int)) (v_ArrVal_5210 (Array Int Int)) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_115| Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5212 (Array Int Int)) (v_ArrVal_5209 (Array Int Int))) (let ((.cse0 (store |c_old(#memory_$Pointer$.base)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_115| v_ArrVal_5209)) (.cse1 (+ 40 |c_aws_priority_queue_is_valid_#in~queue#1.offset|)) (.cse2 (store |c_old(#memory_$Pointer$.offset)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_115| v_ArrVal_5210))) (and (= |c_#memory_$Pointer$.base| (store .cse0 |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5212)) (= (select (select .cse0 |c_aws_priority_queue_is_valid_#in~queue#1.base|) .cse1) 0) (= (select (select .cse2 |c_aws_priority_queue_is_valid_#in~queue#1.base|) .cse1) 0) (= (store .cse2 |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5211) |c_#memory_$Pointer$.offset|)))) is different from true [2022-07-21 09:50:36,512 INFO L356 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2022-07-21 09:50:36,512 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 51 [2022-07-21 09:50:36,541 INFO L356 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2022-07-21 09:50:36,541 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 51 [2022-07-21 09:50:36,586 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-07-21 09:50:36,607 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-07-21 09:50:36,623 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-07-21 09:50:36,696 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_5214 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5214))) (exists ((v_ArrVal_5213 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5213) |c_#memory_$Pointer$.base|)))) is different from true [2022-07-21 09:50:36,878 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| Int)) (and (exists ((v_ArrVal_5215 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5215))) (exists ((v_ArrVal_5217 Int)) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| v_ArrVal_5217)) |c_#memory_$Pointer$.offset|)))) is different from true [2022-07-21 09:50:36,893 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5217 Int) (v_ArrVal_5215 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| Int)) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5215)) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| v_ArrVal_5217)) |c_#memory_$Pointer$.offset|))) is different from true [2022-07-21 09:50:36,940 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5210 (Array Int Int)) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_116| Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5217 Int) (v_ArrVal_5215 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| Int) (v_ArrVal_5209 (Array Int Int))) (let ((.cse1 (+ 40 |c_aws_priority_queue_is_valid_#in~queue#1.offset|)) (.cse0 (store |c_old(#memory_$Pointer$.base)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_116| v_ArrVal_5209)) (.cse2 (store |c_old(#memory_$Pointer$.offset)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_116| v_ArrVal_5210))) (and (= (select (select .cse0 |c_aws_priority_queue_is_valid_#in~queue#1.base|) .cse1) 0) (= (select (select .cse2 |c_aws_priority_queue_is_valid_#in~queue#1.base|) .cse1) 0) (= (store .cse0 |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5215) |c_#memory_$Pointer$.base|) (= (store .cse2 |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select .cse2 |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| v_ArrVal_5217)) |c_#memory_$Pointer$.offset|)))) is different from true [2022-07-21 09:50:37,166 INFO L356 Elim1Store]: treesize reduction 90, result has 30.2 percent of original size [2022-07-21 09:50:37,167 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 63 treesize of output 118 [2022-07-21 09:50:37,202 INFO L356 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2022-07-21 09:50:37,203 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 51 [2022-07-21 09:50:37,228 INFO L356 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-07-21 09:50:37,228 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2022-07-21 09:50:37,352 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-07-21 09:50:37,383 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-07-21 09:50:37,465 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 36 [2022-07-21 09:50:37,736 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-07-21 09:50:37,745 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 18 [2022-07-21 09:50:40,099 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5218 Int) (v_ArrVal_5221 Int)) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_5221))) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_5218)) |c_#memory_$Pointer$.offset|))) is different from true [2022-07-21 09:51:10,955 INFO L134 CoverageAnalysis]: Checked inductivity of 833 backedges. 339 proven. 12 refuted. 0 times theorem prover too weak. 304 trivial. 178 not checked. [2022-07-21 09:51:10,955 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 09:51:13,369 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_128| Int) (v_ArrVal_5235 Int) (v_ArrVal_5234 Int)) (let ((.cse0 (+ 32 c_aws_array_list_length_~list.offset))) (or (not (= (select (select (store |c_#memory_$Pointer$.offset| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_128| (store (select |c_#memory_$Pointer$.offset| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_128|) 0 v_ArrVal_5235)) c_aws_array_list_length_~list.base) .cse0) 0)) (not (= (select (select (store |c_#memory_$Pointer$.base| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_128| (store (select |c_#memory_$Pointer$.base| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_128|) 0 v_ArrVal_5234)) c_aws_array_list_length_~list.base) .cse0) 0))))) is different from false [2022-07-21 09:51:13,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:51:13,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873882396] [2022-07-21 09:51:13,371 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:51:13,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163563381] [2022-07-21 09:51:13,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163563381] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 09:51:13,371 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-21 09:51:13,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47] total 47 [2022-07-21 09:51:13,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407014152] [2022-07-21 09:51:13,371 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-21 09:51:13,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-07-21 09:51:13,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:51:13,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-07-21 09:51:13,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=1353, Unknown=53, NotChecked=1020, Total=2550 [2022-07-21 09:51:13,373 INFO L87 Difference]: Start difference. First operand 484 states and 690 transitions. Second operand has 47 states, 45 states have (on average 4.044444444444444) internal successors, (182), 43 states have internal predecessors, (182), 16 states have call successors, (36), 5 states have call predecessors, (36), 17 states have return successors, (37), 18 states have call predecessors, (37), 16 states have call successors, (37) [2022-07-21 09:51:13,916 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_5209 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5209))) (exists ((v_ArrVal_5210 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5210) |c_#memory_$Pointer$.offset|)))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_5214 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5214))) (exists ((v_ArrVal_5213 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5213) |c_#memory_$Pointer$.base|)))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| Int)) (and (exists ((v_ArrVal_5215 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5215))) (exists ((v_ArrVal_5217 Int)) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| v_ArrVal_5217)) |c_#memory_$Pointer$.offset|)))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5218 Int) (v_ArrVal_5221 Int)) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_5221))) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_5218)) |c_#memory_$Pointer$.offset|))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_5208 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5208) |c_#memory_$Pointer$.offset|)) (exists ((v_ArrVal_5207 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5207))))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_5211 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5211))) (exists ((v_ArrVal_5212 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5212) |c_#memory_$Pointer$.base|))))) is different from true [2022-07-21 09:51:13,989 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_5211 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5212 (Array Int Int))) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5211)) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5212) |c_#memory_$Pointer$.base|))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5208 (Array Int Int)) (v_ArrVal_5207 (Array Int Int))) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5207)) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5208) |c_#memory_$Pointer$.offset|))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5217 Int) (v_ArrVal_5215 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| Int)) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5215)) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| v_ArrVal_5217)) |c_#memory_$Pointer$.offset|)))) is different from true [2022-07-21 09:51:36,903 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_5210 (Array Int Int)) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_116| Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5217 Int) (v_ArrVal_5215 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| Int) (v_ArrVal_5209 (Array Int Int))) (let ((.cse1 (+ 40 |c_aws_priority_queue_is_valid_#in~queue#1.offset|)) (.cse0 (store |c_old(#memory_$Pointer$.base)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_116| v_ArrVal_5209)) (.cse2 (store |c_old(#memory_$Pointer$.offset)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_116| v_ArrVal_5210))) (and (= (select (select .cse0 |c_aws_priority_queue_is_valid_#in~queue#1.base|) .cse1) 0) (= (select (select .cse2 |c_aws_priority_queue_is_valid_#in~queue#1.base|) .cse1) 0) (= (store .cse0 |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5215) |c_#memory_$Pointer$.base|) (= (store .cse2 |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select .cse2 |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| v_ArrVal_5217)) |c_#memory_$Pointer$.offset|)))) (exists ((v_ArrVal_5211 (Array Int Int)) (v_ArrVal_5210 (Array Int Int)) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_115| Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5212 (Array Int Int)) (v_ArrVal_5209 (Array Int Int))) (let ((.cse3 (store |c_old(#memory_$Pointer$.base)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_115| v_ArrVal_5209)) (.cse4 (+ 40 |c_aws_priority_queue_is_valid_#in~queue#1.offset|)) (.cse5 (store |c_old(#memory_$Pointer$.offset)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_115| v_ArrVal_5210))) (and (= |c_#memory_$Pointer$.base| (store .cse3 |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5212)) (= (select (select .cse3 |c_aws_priority_queue_is_valid_#in~queue#1.base|) .cse4) 0) (= (select (select .cse5 |c_aws_priority_queue_is_valid_#in~queue#1.base|) .cse4) 0) (= (store .cse5 |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5211) |c_#memory_$Pointer$.offset|))))) is different from true [2022-07-21 09:51:41,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:51:41,659 INFO L93 Difference]: Finished difference Result 1418 states and 2296 transitions. [2022-07-21 09:51:41,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-07-21 09:51:41,660 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 45 states have (on average 4.044444444444444) internal successors, (182), 43 states have internal predecessors, (182), 16 states have call successors, (36), 5 states have call predecessors, (36), 17 states have return successors, (37), 18 states have call predecessors, (37), 16 states have call successors, (37) Word has length 340 [2022-07-21 09:51:41,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:51:41,667 INFO L225 Difference]: With dead ends: 1418 [2022-07-21 09:51:41,668 INFO L226 Difference]: Without dead ends: 1064 [2022-07-21 09:51:41,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 324 SyntacticMatches, 3 SemanticMatches, 77 ConstructedPredicates, 15 IntricatePredicates, 0 DeprecatedPredicates, 882 ImplicationChecksByTransitivity, 58.4s TimeCoverageRelationStatistics Valid=310, Invalid=3685, Unknown=97, NotChecked=2070, Total=6162 [2022-07-21 09:51:41,672 INFO L413 NwaCegarLoop]: 575 mSDtfsCounter, 409 mSDsluCounter, 8797 mSDsCounter, 0 mSdLazyCounter, 8163 mSolverCounterSat, 293 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 9372 SdHoareTripleChecker+Invalid, 22598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 293 IncrementalHoareTripleChecker+Valid, 8163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 14142 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-07-21 09:51:41,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [470 Valid, 9372 Invalid, 22598 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [293 Valid, 8163 Invalid, 0 Unknown, 14142 Unchecked, 5.3s Time] [2022-07-21 09:51:41,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2022-07-21 09:51:41,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 570. [2022-07-21 09:51:41,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 384 states have (on average 1.1927083333333333) internal successors, (458), 392 states have internal predecessors, (458), 144 states have call successors, (144), 27 states have call predecessors, (144), 40 states have return successors, (315), 150 states have call predecessors, (315), 142 states have call successors, (315) [2022-07-21 09:51:41,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 917 transitions. [2022-07-21 09:51:41,740 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 917 transitions. Word has length 340 [2022-07-21 09:51:41,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:51:41,741 INFO L495 AbstractCegarLoop]: Abstraction has 570 states and 917 transitions. [2022-07-21 09:51:41,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 45 states have (on average 4.044444444444444) internal successors, (182), 43 states have internal predecessors, (182), 16 states have call successors, (36), 5 states have call predecessors, (36), 17 states have return successors, (37), 18 states have call predecessors, (37), 16 states have call successors, (37) [2022-07-21 09:51:41,741 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 917 transitions. [2022-07-21 09:51:41,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2022-07-21 09:51:41,745 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:51:41,745 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:51:41,780 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2022-07-21 09:51:41,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-07-21 09:51:41,959 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:51:41,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:51:41,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1790678840, now seen corresponding path program 1 times [2022-07-21 09:51:41,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:51:41,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838441143] [2022-07-21 09:51:41,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:51:41,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:51:42,023 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:51:42,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1333745522] [2022-07-21 09:51:42,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:51:42,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:51:42,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:51:42,025 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:51:42,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2022-07-21 09:51:43,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:51:43,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 3794 conjuncts, 184 conjunts are in the unsatisfiable core [2022-07-21 09:51:43,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:51:43,091 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-21 09:51:43,268 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5497 (Array Int Int))) (= |c_#memory_int| (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_5497))) is different from true [2022-07-21 09:51:43,354 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5498 (Array Int Int))) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5498) |c_#memory_int|)) is different from true [2022-07-21 09:51:43,490 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-21 09:51:43,490 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-07-21 09:51:43,498 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-07-21 09:51:43,498 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-07-21 09:51:43,796 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5499 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5499) |c_#memory_int|)) is different from true [2022-07-21 09:51:43,912 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5500 (Array Int Int))) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5500) |c_#memory_int|)) is different from true [2022-07-21 09:51:43,935 WARN L855 $PredicateComparison]: unable to prove that (exists ((|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_129| Int) (v_ArrVal_5499 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5500 (Array Int Int))) (= (store (store |c_old(#memory_int)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_129| v_ArrVal_5499) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5500) |c_#memory_int|)) is different from true [2022-07-21 09:51:43,980 INFO L356 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2022-07-21 09:51:43,980 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 34 [2022-07-21 09:51:44,070 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5501 (Array Int Int))) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5501) |c_#memory_int|)) is different from true [2022-07-21 09:51:44,137 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5502 (Array Int Int))) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5502) |c_#memory_int|)) is different from true [2022-07-21 09:51:44,160 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5499 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5502 (Array Int Int)) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_130| Int)) (= |c_#memory_int| (store (store |c_old(#memory_int)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_130| v_ArrVal_5499) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5502))) is different from true [2022-07-21 09:51:44,195 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-21 09:51:44,195 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-07-21 09:51:44,343 INFO L134 CoverageAnalysis]: Checked inductivity of 833 backedges. 327 proven. 80 refuted. 0 times theorem prover too weak. 228 trivial. 198 not checked. [2022-07-21 09:51:44,343 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 09:51:45,756 INFO L134 CoverageAnalysis]: Checked inductivity of 833 backedges. 51 proven. 6 refuted. 0 times theorem prover too weak. 776 trivial. 0 not checked. [2022-07-21 09:51:45,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:51:45,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838441143] [2022-07-21 09:51:45,756 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:51:45,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333745522] [2022-07-21 09:51:45,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1333745522] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 09:51:45,757 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 09:51:45,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 13] total 48 [2022-07-21 09:51:45,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988753248] [2022-07-21 09:51:45,757 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 09:51:45,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-07-21 09:51:45,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:51:45,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-07-21 09:51:45,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=1447, Unknown=16, NotChecked=664, Total=2256 [2022-07-21 09:51:45,760 INFO L87 Difference]: Start difference. First operand 570 states and 917 transitions. Second operand has 48 states, 42 states have (on average 5.9523809523809526) internal successors, (250), 41 states have internal predecessors, (250), 24 states have call successors, (61), 10 states have call predecessors, (61), 17 states have return successors, (60), 23 states have call predecessors, (60), 20 states have call successors, (60) [2022-07-21 09:51:46,408 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_5499 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5499) |c_#memory_int|)) (exists ((|aws_array_list_is_valid_~#required_size~0.base| Int)) (and (= (select |c_old(#valid)| |aws_array_list_is_valid_~#required_size~0.base|) 0) (exists ((v_ArrVal_5497 (Array Int Int))) (= |c_#memory_int| (store |c_old(#memory_int)| |aws_array_list_is_valid_~#required_size~0.base| v_ArrVal_5497))))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5501 (Array Int Int))) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5501) |c_#memory_int|))) is different from true [2022-07-21 09:51:46,416 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5498 (Array Int Int))) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5498) |c_#memory_int|)) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5500 (Array Int Int))) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5500) |c_#memory_int|)) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5502 (Array Int Int))) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5502) |c_#memory_int|))) is different from true [2022-07-21 09:51:46,716 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5498 (Array Int Int))) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5498) |c_#memory_int|)) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5500 (Array Int Int))) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5500) |c_#memory_int|)) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5502 (Array Int Int))) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5502) |c_#memory_int|)) (exists ((v_ArrVal_5499 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5499) |c_#memory_int|)) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5501 (Array Int Int))) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5501) |c_#memory_int|))) is different from true [2022-07-21 09:51:46,719 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_5499 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5499) |c_#memory_int|)) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5501 (Array Int Int))) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5501) |c_#memory_int|))) is different from true [2022-07-21 09:51:46,789 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_5497 (Array Int Int)) (|aws_array_list_is_valid_~#required_size~0.base| Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5498 (Array Int Int))) (and (= (store (store |c_old(#memory_int)| |aws_array_list_is_valid_~#required_size~0.base| v_ArrVal_5497) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5498) |c_#memory_int|) (= (select |c_old(#valid)| |aws_array_list_is_valid_~#required_size~0.base|) 0))) (exists ((v_ArrVal_5499 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5502 (Array Int Int)) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_130| Int)) (= |c_#memory_int| (store (store |c_old(#memory_int)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_130| v_ArrVal_5499) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5502))) (exists ((|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_129| Int) (v_ArrVal_5499 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5500 (Array Int Int))) (= (store (store |c_old(#memory_int)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_129| v_ArrVal_5499) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5500) |c_#memory_int|))) is different from true [2022-07-21 09:51:46,794 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_5497 (Array Int Int)) (|aws_array_list_is_valid_~#required_size~0.base| Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5498 (Array Int Int))) (and (= (store (store |c_old(#memory_int)| |aws_array_list_is_valid_~#required_size~0.base| v_ArrVal_5497) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5498) |c_#memory_int|) (= (select |c_old(#valid)| |aws_array_list_is_valid_~#required_size~0.base|) 0))) (exists ((v_ArrVal_5499 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5502 (Array Int Int)) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_130| Int)) (= |c_#memory_int| (store (store |c_old(#memory_int)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_130| v_ArrVal_5499) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5502))) (exists ((|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_129| Int) (v_ArrVal_5499 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5500 (Array Int Int))) (= (store (store |c_old(#memory_int)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_129| v_ArrVal_5499) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5500) |c_#memory_int|)) (not |c_aws_priority_queue_is_valid_aws_priority_queue_backpointers_valid_#t~short871#1|)) is different from true [2022-07-21 09:51:50,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:51:50,989 INFO L93 Difference]: Finished difference Result 1292 states and 2180 transitions. [2022-07-21 09:51:50,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-07-21 09:51:50,989 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 42 states have (on average 5.9523809523809526) internal successors, (250), 41 states have internal predecessors, (250), 24 states have call successors, (61), 10 states have call predecessors, (61), 17 states have return successors, (60), 23 states have call predecessors, (60), 20 states have call successors, (60) Word has length 340 [2022-07-21 09:51:50,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:51:50,998 INFO L225 Difference]: With dead ends: 1292 [2022-07-21 09:51:50,999 INFO L226 Difference]: Without dead ends: 872 [2022-07-21 09:51:51,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 710 GetRequests, 628 SyntacticMatches, 9 SemanticMatches, 73 ConstructedPredicates, 14 IntricatePredicates, 0 DeprecatedPredicates, 755 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=290, Invalid=3387, Unknown=39, NotChecked=1834, Total=5550 [2022-07-21 09:51:51,005 INFO L413 NwaCegarLoop]: 604 mSDtfsCounter, 349 mSDsluCounter, 9396 mSDsCounter, 0 mSdLazyCounter, 7128 mSolverCounterSat, 260 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 10000 SdHoareTripleChecker+Invalid, 20147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 260 IncrementalHoareTripleChecker+Valid, 7128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 12759 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-07-21 09:51:51,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 10000 Invalid, 20147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [260 Valid, 7128 Invalid, 0 Unknown, 12759 Unchecked, 4.4s Time] [2022-07-21 09:51:51,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2022-07-21 09:51:51,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 583. [2022-07-21 09:51:51,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 395 states have (on average 1.1898734177215189) internal successors, (470), 403 states have internal predecessors, (470), 143 states have call successors, (143), 29 states have call predecessors, (143), 43 states have return successors, (308), 150 states have call predecessors, (308), 141 states have call successors, (308) [2022-07-21 09:51:51,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 921 transitions. [2022-07-21 09:51:51,055 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 921 transitions. Word has length 340 [2022-07-21 09:51:51,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:51:51,056 INFO L495 AbstractCegarLoop]: Abstraction has 583 states and 921 transitions. [2022-07-21 09:51:51,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 42 states have (on average 5.9523809523809526) internal successors, (250), 41 states have internal predecessors, (250), 24 states have call successors, (61), 10 states have call predecessors, (61), 17 states have return successors, (60), 23 states have call predecessors, (60), 20 states have call successors, (60) [2022-07-21 09:51:51,056 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 921 transitions. [2022-07-21 09:51:51,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2022-07-21 09:51:51,060 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:51:51,061 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:51:51,099 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2022-07-21 09:51:51,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:51:51,283 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:51:51,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:51:51,284 INFO L85 PathProgramCache]: Analyzing trace with hash 351178964, now seen corresponding path program 1 times [2022-07-21 09:51:51,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:51:51,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030278266] [2022-07-21 09:51:51,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:51:51,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:51:51,345 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:51:51,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1927277848] [2022-07-21 09:51:51,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:51:51,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:51:51,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:51:51,347 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:51:51,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2022-07-21 09:51:52,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:51:52,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 3812 conjuncts, 35 conjunts are in the unsatisfiable core [2022-07-21 09:51:52,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:51:52,368 INFO L134 CoverageAnalysis]: Checked inductivity of 845 backedges. 427 proven. 1 refuted. 0 times theorem prover too weak. 417 trivial. 0 not checked. [2022-07-21 09:51:52,368 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 09:51:53,073 INFO L134 CoverageAnalysis]: Checked inductivity of 845 backedges. 87 proven. 20 refuted. 0 times theorem prover too weak. 738 trivial. 0 not checked. [2022-07-21 09:51:53,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:51:53,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030278266] [2022-07-21 09:51:53,073 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:51:53,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927277848] [2022-07-21 09:51:53,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1927277848] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 09:51:53,074 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 09:51:53,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14] total 19 [2022-07-21 09:51:53,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165651889] [2022-07-21 09:51:53,074 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 09:51:53,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-21 09:51:53,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:51:53,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-21 09:51:53,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-07-21 09:51:53,076 INFO L87 Difference]: Start difference. First operand 583 states and 921 transitions. Second operand has 19 states, 18 states have (on average 7.611111111111111) internal successors, (137), 12 states have internal predecessors, (137), 3 states have call successors, (37), 3 states have call predecessors, (37), 6 states have return successors, (38), 8 states have call predecessors, (38), 2 states have call successors, (38) [2022-07-21 09:51:53,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:51:53,332 INFO L93 Difference]: Finished difference Result 1151 states and 1851 transitions. [2022-07-21 09:51:53,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 09:51:53,333 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 7.611111111111111) internal successors, (137), 12 states have internal predecessors, (137), 3 states have call successors, (37), 3 states have call predecessors, (37), 6 states have return successors, (38), 8 states have call predecessors, (38), 2 states have call successors, (38) Word has length 354 [2022-07-21 09:51:53,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:51:53,340 INFO L225 Difference]: With dead ends: 1151 [2022-07-21 09:51:53,340 INFO L226 Difference]: Without dead ends: 608 [2022-07-21 09:51:53,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 710 GetRequests, 689 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2022-07-21 09:51:53,348 INFO L413 NwaCegarLoop]: 499 mSDtfsCounter, 17 mSDsluCounter, 7394 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 7893 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 09:51:53,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 7893 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 09:51:53,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2022-07-21 09:51:53,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 579. [2022-07-21 09:51:53,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 392 states have (on average 1.183673469387755) internal successors, (464), 395 states have internal predecessors, (464), 143 states have call successors, (143), 29 states have call predecessors, (143), 42 states have return successors, (290), 154 states have call predecessors, (290), 141 states have call successors, (290) [2022-07-21 09:51:53,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 897 transitions. [2022-07-21 09:51:53,390 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 897 transitions. Word has length 354 [2022-07-21 09:51:53,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:51:53,391 INFO L495 AbstractCegarLoop]: Abstraction has 579 states and 897 transitions. [2022-07-21 09:51:53,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 7.611111111111111) internal successors, (137), 12 states have internal predecessors, (137), 3 states have call successors, (37), 3 states have call predecessors, (37), 6 states have return successors, (38), 8 states have call predecessors, (38), 2 states have call successors, (38) [2022-07-21 09:51:53,391 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 897 transitions. [2022-07-21 09:51:53,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2022-07-21 09:51:53,395 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:51:53,395 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:51:53,429 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2022-07-21 09:51:53,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2022-07-21 09:51:53,616 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:51:53,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:51:53,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1661610158, now seen corresponding path program 1 times [2022-07-21 09:51:53,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:51:53,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828585693] [2022-07-21 09:51:53,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:51:53,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:51:53,691 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:51:53,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1417195917] [2022-07-21 09:51:53,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:51:53,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:51:53,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:51:53,693 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:51:53,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2022-07-21 09:51:54,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:51:54,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 3809 conjuncts, 258 conjunts are in the unsatisfiable core [2022-07-21 09:51:54,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:51:54,927 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_6100 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_6100))) (exists ((v_ArrVal_6099 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_6099) |c_#memory_$Pointer$.base|)))) is different from true [2022-07-21 09:51:54,941 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_6100 (Array Int Int)) (v_ArrVal_6099 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_6100)) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_6099) |c_#memory_$Pointer$.base|))) is different from true [2022-07-21 09:51:54,985 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-21 09:51:54,985 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 34 [2022-07-21 09:51:54,999 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-21 09:51:55,000 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 32 [2022-07-21 09:51:55,050 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2022-07-21 09:51:55,052 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-07-21 09:51:57,224 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_6102 Int) (v_ArrVal_6101 Int)) (and (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_6102)) |c_#memory_$Pointer$.base|) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_6101))))) is different from true [2022-07-21 09:52:48,587 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_6108 Int) (v_ArrVal_6106 Int)) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_6106))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_6108))))) is different from true [2022-07-21 09:52:50,599 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_6108 Int) (v_ArrVal_6106 Int)) (and (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_6108)) |c_#memory_$Pointer$.offset|) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_6106)) |c_#memory_$Pointer$.base|))) is different from true [2022-07-21 09:52:52,726 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_6108 Int) (v_ArrVal_6106 Int) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_310| Int) (v_ArrVal_6102 Int) (v_ArrVal_6101 Int)) (let ((.cse0 (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_6102))) (.cse1 (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_6101)))) (and (= |c_#memory_$Pointer$.base| (store .cse0 |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_310| (store (select .cse0 |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_310|) 0 v_ArrVal_6106))) (= |c_#memory_$Pointer$.offset| (store .cse1 |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_310| (store (select .cse1 |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_310|) 0 v_ArrVal_6108))) (let ((.cse2 (+ 40 |c_aws_priority_queue_is_valid_#in~queue#1.offset|))) (or (not (= (select (select .cse0 |c_aws_priority_queue_is_valid_#in~queue#1.base|) .cse2) 0)) (not (= (select (select .cse1 |c_aws_priority_queue_is_valid_#in~queue#1.base|) .cse2) 0))))))) is different from true [2022-07-21 09:52:53,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 09:52:53,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 09:52:53,840 INFO L356 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-07-21 09:52:53,841 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 51 [2022-07-21 09:52:53,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 09:52:53,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 09:52:53,854 INFO L356 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-07-21 09:52:53,854 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 43 [2022-07-21 09:53:20,239 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_6112 Int) (v_ArrVal_6111 Int)) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_6111))) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_6112)) |c_#memory_$Pointer$.base|))) is different from true [2022-07-21 09:53:40,631 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_6113 Int)) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_6113)))) is different from true [2022-07-21 09:53:42,638 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_6113 Int)) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_6113)))) is different from true [2022-07-21 09:53:44,670 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_311| Int) (v_ArrVal_6113 Int) (v_ArrVal_6102 Int) (v_ArrVal_6101 Int)) (let ((.cse0 (store |c_old(#memory_$Pointer$.offset)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_311| (store (select |c_old(#memory_$Pointer$.offset)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_311|) 0 v_ArrVal_6101))) (.cse1 (+ 40 |c_aws_priority_queue_is_valid_#in~queue#1.offset|))) (and (= (select (select .cse0 |c_aws_priority_queue_is_valid_#in~queue#1.base|) .cse1) 0) (= |c_#memory_$Pointer$.offset| (store .cse0 |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select .cse0 |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_6113))) (= (select (select (store |c_old(#memory_$Pointer$.base)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_311| (store (select |c_old(#memory_$Pointer$.base)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_311|) 0 v_ArrVal_6102)) |c_aws_priority_queue_is_valid_#in~queue#1.base|) .cse1) 0)))) is different from true [2022-07-21 09:53:44,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 09:53:44,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 09:53:44,793 INFO L356 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-07-21 09:53:44,793 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 35 [2022-07-21 09:53:44,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 09:53:44,799 INFO L134 CoverageAnalysis]: Checked inductivity of 847 backedges. 483 proven. 36 refuted. 0 times theorem prover too weak. 182 trivial. 146 not checked. [2022-07-21 09:53:44,799 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 09:53:46,751 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_323| Int) (v_ArrVal_6123 Int)) (not (= (select (select (store |c_#memory_$Pointer$.offset| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_323| (store (select |c_#memory_$Pointer$.offset| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_323|) 0 v_ArrVal_6123)) c_aws_array_list_length_~list.base) (+ 32 c_aws_array_list_length_~list.offset)) 0))) is different from false [2022-07-21 09:53:46,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:53:46,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828585693] [2022-07-21 09:53:46,752 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:53:46,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1417195917] [2022-07-21 09:53:46,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1417195917] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 09:53:46,753 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-21 09:53:46,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42] total 42 [2022-07-21 09:53:46,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238169327] [2022-07-21 09:53:46,753 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-21 09:53:46,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-07-21 09:53:46,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:53:46,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-07-21 09:53:46,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=891, Unknown=34, NotChecked=770, Total=1806 [2022-07-21 09:53:46,755 INFO L87 Difference]: Start difference. First operand 579 states and 897 transitions. Second operand has 42 states, 38 states have (on average 4.815789473684211) internal successors, (183), 37 states have internal predecessors, (183), 17 states have call successors, (39), 6 states have call predecessors, (39), 16 states have return successors, (38), 17 states have call predecessors, (38), 17 states have call successors, (38) [2022-07-21 09:53:47,106 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_6113 Int)) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_6113)))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_6108 Int) (v_ArrVal_6106 Int)) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_6106))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_6108))))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_6100 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_6100))) (exists ((v_ArrVal_6099 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_6099) |c_#memory_$Pointer$.base|)))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_6102 Int) (v_ArrVal_6101 Int)) (and (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_6102)) |c_#memory_$Pointer$.base|) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_6101))))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_6112 Int) (v_ArrVal_6111 Int)) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_6111))) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_6112)) |c_#memory_$Pointer$.base|)))) is different from true [2022-07-21 09:53:47,167 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_6108 Int) (v_ArrVal_6106 Int)) (and (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_6108)) |c_#memory_$Pointer$.offset|) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_6106)) |c_#memory_$Pointer$.base|))) (exists ((v_ArrVal_6100 (Array Int Int)) (v_ArrVal_6099 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_6100)) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_6099) |c_#memory_$Pointer$.base|))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_6113 Int)) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_6113))))) is different from true