./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_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 723ac1839b12f7ec2d51e01d6b07ab9cd6a1336eb9a801e97d56c2782f32ef5c --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 11:15:19,509 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 11:15:19,512 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 11:15:19,560 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 11:15:19,561 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 11:15:19,562 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 11:15:19,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 11:15:19,567 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 11:15:19,569 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 11:15:19,573 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 11:15:19,574 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 11:15:19,576 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 11:15:19,577 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 11:15:19,579 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 11:15:19,580 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 11:15:19,582 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 11:15:19,583 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 11:15:19,584 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 11:15:19,588 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 11:15:19,590 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 11:15:19,595 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 11:15:19,597 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 11:15:19,597 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 11:15:19,598 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 11:15:19,600 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 11:15:19,605 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 11:15:19,605 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 11:15:19,606 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 11:15:19,607 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 11:15:19,608 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 11:15:19,609 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 11:15:19,609 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 11:15:19,611 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 11:15:19,611 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 11:15:19,612 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 11:15:19,613 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 11:15:19,613 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 11:15:19,614 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 11:15:19,614 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 11:15:19,614 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 11:15:19,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 11:15:19,617 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 11:15:19,618 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 11:15:19,649 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 11:15:19,649 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 11:15:19,650 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 11:15:19,650 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 11:15:19,651 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 11:15:19,651 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 11:15:19,651 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 11:15:19,652 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 11:15:19,652 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 11:15:19,653 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 11:15:19,653 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 11:15:19,653 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 11:15:19,653 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 11:15:19,654 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 11:15:19,654 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 11:15:19,654 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 11:15:19,654 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 11:15:19,654 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 11:15:19,655 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 11:15:19,656 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 11:15:19,656 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 11:15:19,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 11:15:19,657 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 11:15:19,657 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 11:15:19,657 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 11:15:19,657 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 11:15:19,658 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 11:15:19,658 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 11:15:19,658 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 11:15:19,658 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 11:15:19,659 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 723ac1839b12f7ec2d51e01d6b07ab9cd6a1336eb9a801e97d56c2782f32ef5c [2022-07-12 11:15:19,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 11:15:19,916 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 11:15:19,918 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 11:15:19,919 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 11:15:19,920 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 11:15:19,921 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i [2022-07-12 11:15:19,981 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16d5f9e4a/ffa9d4ebaead43cda8ca219929d9582b/FLAG923204ee9 [2022-07-12 11:15:20,726 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 11:15:20,732 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i [2022-07-12 11:15:20,780 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16d5f9e4a/ffa9d4ebaead43cda8ca219929d9582b/FLAG923204ee9 [2022-07-12 11:15:20,807 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16d5f9e4a/ffa9d4ebaead43cda8ca219929d9582b [2022-07-12 11:15:20,809 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 11:15:20,810 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 11:15:20,811 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 11:15:20,811 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 11:15:20,817 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 11:15:20,817 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 11:15:20" (1/1) ... [2022-07-12 11:15:20,818 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19cfe295 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:15:20, skipping insertion in model container [2022-07-12 11:15:20,818 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 11:15:20" (1/1) ... [2022-07-12 11:15:20,823 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 11:15:20,917 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 11:15:21,193 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_up_harness.i[4502,4515] [2022-07-12 11:15:21,200 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_up_harness.i[4562,4575] [2022-07-12 11:15:21,840 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:21,841 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:21,841 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:21,842 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:21,843 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:21,858 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:21,859 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:21,860 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:21,861 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:21,862 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:21,863 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:21,864 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:21,864 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,131 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-12 11:15:22,132 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-12 11:15:22,133 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-12 11:15:22,134 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-12 11:15:22,152 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-12 11:15:22,153 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-12 11:15:22,153 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-12 11:15:22,153 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-12 11:15:22,154 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-12 11:15:22,154 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-12 11:15:22,278 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-12 11:15:22,301 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,301 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,306 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,311 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,393 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,393 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,394 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,394 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,395 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,395 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,396 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,397 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,398 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,398 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,398 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,398 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,399 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,404 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,405 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,405 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,405 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,410 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,411 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,419 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,420 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,420 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,447 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 11:15:22,486 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 11:15:22,508 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_up_harness.i[4502,4515] [2022-07-12 11:15:22,509 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_up_harness.i[4562,4575] [2022-07-12 11:15:22,555 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,556 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,556 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,556 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,557 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,567 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,567 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,568 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,568 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,569 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,570 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,570 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,570 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,624 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-12 11:15:22,625 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-12 11:15:22,626 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-12 11:15:22,626 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-12 11:15:22,629 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-12 11:15:22,630 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-12 11:15:22,630 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-12 11:15:22,631 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-12 11:15:22,631 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-12 11:15:22,632 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-12 11:15:22,654 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-12 11:15:22,677 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,678 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,679 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,684 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,720 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,721 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,721 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,722 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,722 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,722 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,723 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,724 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,724 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,724 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,725 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,725 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,726 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,727 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,727 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,728 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,728 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,732 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,733 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,738 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,738 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,739 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:15:22,753 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 11:15:22,955 INFO L208 MainTranslator]: Completed translation [2022-07-12 11:15:22,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:15:22 WrapperNode [2022-07-12 11:15:22,956 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 11:15:22,958 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 11:15:22,959 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 11:15:22,959 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 11:15:22,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:15:22" (1/1) ... [2022-07-12 11:15:23,062 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:15:22" (1/1) ... [2022-07-12 11:15:23,153 INFO L137 Inliner]: procedures = 697, calls = 1887, calls flagged for inlining = 61, calls inlined = 14, statements flattened = 815 [2022-07-12 11:15:23,156 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 11:15:23,156 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 11:15:23,157 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 11:15:23,157 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 11:15:23,164 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:15:22" (1/1) ... [2022-07-12 11:15:23,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:15:22" (1/1) ... [2022-07-12 11:15:23,178 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:15:22" (1/1) ... [2022-07-12 11:15:23,179 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:15:22" (1/1) ... [2022-07-12 11:15:23,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:15:22" (1/1) ... [2022-07-12 11:15:23,236 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:15:22" (1/1) ... [2022-07-12 11:15:23,242 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:15:22" (1/1) ... [2022-07-12 11:15:23,253 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 11:15:23,254 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 11:15:23,254 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 11:15:23,254 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 11:15:23,255 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:15:22" (1/1) ... [2022-07-12 11:15:23,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 11:15:23,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:23,301 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 11:15:23,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 11:15:23,344 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2022-07-12 11:15:23,344 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2022-07-12 11:15:23,345 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-07-12 11:15:23,345 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-07-12 11:15:23,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 11:15:23,345 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-07-12 11:15:23,345 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-07-12 11:15:23,345 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-07-12 11:15:23,346 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-07-12 11:15:23,346 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-07-12 11:15:23,346 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-07-12 11:15:23,346 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2022-07-12 11:15:23,347 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2022-07-12 11:15:23,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 11:15:23,347 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-07-12 11:15:23,348 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-07-12 11:15:23,348 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-12 11:15:23,350 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-12 11:15:23,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 11:15:23,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 11:15:23,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 11:15:23,351 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2022-07-12 11:15:23,352 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2022-07-12 11:15:23,352 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-07-12 11:15:23,352 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-07-12 11:15:23,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 11:15:23,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 11:15:23,357 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-07-12 11:15:23,358 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-07-12 11:15:23,358 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-07-12 11:15:23,358 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-07-12 11:15:23,358 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-07-12 11:15:23,358 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-07-12 11:15:23,358 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2022-07-12 11:15:23,358 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2022-07-12 11:15:23,358 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-07-12 11:15:23,359 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-07-12 11:15:23,359 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 11:15:23,359 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 11:15:23,359 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-07-12 11:15:23,359 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-07-12 11:15:23,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 11:15:23,359 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 11:15:23,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 11:15:23,360 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2022-07-12 11:15:23,360 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2022-07-12 11:15:23,360 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-07-12 11:15:23,360 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-07-12 11:15:23,360 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-07-12 11:15:23,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-07-12 11:15:23,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 11:15:23,360 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-07-12 11:15:23,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-07-12 11:15:23,361 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2022-07-12 11:15:23,361 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2022-07-12 11:15:23,361 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-12 11:15:23,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-12 11:15:23,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 11:15:23,635 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 11:15:23,637 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 11:15:24,591 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 11:15:24,599 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 11:15:24,600 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-07-12 11:15:24,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 11:15:24 BoogieIcfgContainer [2022-07-12 11:15:24,602 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 11:15:24,603 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 11:15:24,604 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 11:15:24,607 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 11:15:24,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 11:15:20" (1/3) ... [2022-07-12 11:15:24,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d91670f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 11:15:24, skipping insertion in model container [2022-07-12 11:15:24,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:15:22" (2/3) ... [2022-07-12 11:15:24,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d91670f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 11:15:24, skipping insertion in model container [2022-07-12 11:15:24,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 11:15:24" (3/3) ... [2022-07-12 11:15:24,609 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_up_harness.i [2022-07-12 11:15:24,623 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 11:15:24,623 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-12 11:15:24,672 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 11:15:24,677 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@5fcec804, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@d9c424a [2022-07-12 11:15:24,677 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-12 11:15:24,682 INFO L276 IsEmpty]: Start isEmpty. Operand has 315 states, 194 states have (on average 1.2577319587628866) internal successors, (244), 197 states have internal predecessors, (244), 95 states have call successors, (95), 23 states have call predecessors, (95), 23 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2022-07-12 11:15:24,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-07-12 11:15:24,694 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:24,695 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, 1] [2022-07-12 11:15:24,696 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:24,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:24,700 INFO L85 PathProgramCache]: Analyzing trace with hash -30055658, now seen corresponding path program 1 times [2022-07-12 11:15:24,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:24,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559756172] [2022-07-12 11:15:24,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:24,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:25,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:25,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:15:25,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:25,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 11:15:25,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:25,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 11:15:25,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:25,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 11:15:25,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:25,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 11:15:25,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:25,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 11:15:25,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:25,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 11:15:25,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:25,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 11:15:25,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:25,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 11:15:25,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:25,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 11:15:25,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:25,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-12 11:15:25,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:25,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 11:15:25,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:25,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-12 11:15:25,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:25,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 11:15:25,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:25,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 11:15:25,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:25,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-12 11:15:25,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:25,425 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-07-12 11:15:25,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:25,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559756172] [2022-07-12 11:15:25,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559756172] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:25,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:15:25,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 11:15:25,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882325491] [2022-07-12 11:15:25,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:25,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 11:15:25,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:25,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 11:15:25,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-12 11:15:25,477 INFO L87 Difference]: Start difference. First operand has 315 states, 194 states have (on average 1.2577319587628866) internal successors, (244), 197 states have internal predecessors, (244), 95 states have call successors, (95), 23 states have call predecessors, (95), 23 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 2 states have internal predecessors, (36), 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) [2022-07-12 11:15:26,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:26,310 INFO L93 Difference]: Finished difference Result 711 states and 1124 transitions. [2022-07-12 11:15:26,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 11:15:26,313 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 2 states have internal predecessors, (36), 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 104 [2022-07-12 11:15:26,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:26,335 INFO L225 Difference]: With dead ends: 711 [2022-07-12 11:15:26,335 INFO L226 Difference]: Without dead ends: 402 [2022-07-12 11:15:26,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-12 11:15:26,350 INFO L413 NwaCegarLoop]: 388 mSDtfsCounter, 237 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 322 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 322 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:26,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 514 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [322 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-12 11:15:26,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2022-07-12 11:15:26,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 308. [2022-07-12 11:15:26,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 189 states have (on average 1.2222222222222223) internal successors, (231), 191 states have internal predecessors, (231), 95 states have call successors, (95), 23 states have call predecessors, (95), 22 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2022-07-12 11:15:26,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 419 transitions. [2022-07-12 11:15:26,458 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 419 transitions. Word has length 104 [2022-07-12 11:15:26,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:26,459 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 419 transitions. [2022-07-12 11:15:26,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 2 states have internal predecessors, (36), 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) [2022-07-12 11:15:26,461 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 419 transitions. [2022-07-12 11:15:26,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-07-12 11:15:26,467 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:26,467 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, 1] [2022-07-12 11:15:26,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 11:15:26,468 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:26,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:26,468 INFO L85 PathProgramCache]: Analyzing trace with hash -380024514, now seen corresponding path program 1 times [2022-07-12 11:15:26,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:26,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046990959] [2022-07-12 11:15:26,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:26,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:26,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:26,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:15:26,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:26,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 11:15:26,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:26,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 11:15:26,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:26,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 11:15:26,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:26,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 11:15:26,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:26,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 11:15:26,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:26,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 11:15:26,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:26,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 11:15:26,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:26,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 11:15:26,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:26,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 11:15:26,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:26,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-12 11:15:26,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:26,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 11:15:26,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:26,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-12 11:15:26,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:26,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 11:15:26,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:26,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 11:15:26,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:26,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-12 11:15:26,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:26,897 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-07-12 11:15:26,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:26,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046990959] [2022-07-12 11:15:26,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046990959] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 11:15:26,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [637295253] [2022-07-12 11:15:26,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:26,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:26,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:26,911 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:15:26,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-12 11:15:27,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:27,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 2188 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-12 11:15:27,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:27,473 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-12 11:15:27,473 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:27,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [637295253] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:27,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 11:15:27,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2022-07-12 11:15:27,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231094713] [2022-07-12 11:15:27,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:27,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 11:15:27,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:27,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 11:15:27,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-07-12 11:15:27,477 INFO L87 Difference]: Start difference. First operand 308 states and 419 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 11:15:27,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:27,699 INFO L93 Difference]: Finished difference Result 582 states and 798 transitions. [2022-07-12 11:15:27,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 11:15:27,700 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 104 [2022-07-12 11:15:27,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:27,703 INFO L225 Difference]: With dead ends: 582 [2022-07-12 11:15:27,703 INFO L226 Difference]: Without dead ends: 310 [2022-07-12 11:15:27,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-07-12 11:15:27,706 INFO L413 NwaCegarLoop]: 383 mSDtfsCounter, 442 mSDsluCounter, 1085 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 1468 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:27,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 1468 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 11:15:27,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2022-07-12 11:15:27,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 310. [2022-07-12 11:15:27,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 190 states have (on average 1.2210526315789474) internal successors, (232), 193 states have internal predecessors, (232), 95 states have call successors, (95), 23 states have call predecessors, (95), 23 states have return successors, (97), 93 states have call predecessors, (97), 93 states have call successors, (97) [2022-07-12 11:15:27,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 424 transitions. [2022-07-12 11:15:27,729 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 424 transitions. Word has length 104 [2022-07-12 11:15:27,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:27,730 INFO L495 AbstractCegarLoop]: Abstraction has 310 states and 424 transitions. [2022-07-12 11:15:27,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 11:15:27,730 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 424 transitions. [2022-07-12 11:15:27,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-12 11:15:27,732 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:27,732 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 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] [2022-07-12 11:15:27,763 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:27,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:27,954 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:27,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:27,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1602100200, now seen corresponding path program 1 times [2022-07-12 11:15:27,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:27,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961982699] [2022-07-12 11:15:27,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:27,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:28,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:28,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:15:28,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:28,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 11:15:28,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:28,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 11:15:28,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:28,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 11:15:28,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:28,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 11:15:28,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:28,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 11:15:28,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:28,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 11:15:28,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:28,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 11:15:28,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:28,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 11:15:28,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:28,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 11:15:28,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:28,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:15:28,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:28,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 11:15:28,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:28,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 11:15:28,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:28,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-12 11:15:28,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:28,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 11:15:28,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:28,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-12 11:15:28,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:28,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-12 11:15:28,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:28,349 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-07-12 11:15:28,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:28,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961982699] [2022-07-12 11:15:28,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961982699] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 11:15:28,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1395152284] [2022-07-12 11:15:28,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:28,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:28,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:28,352 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:15:28,380 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-12 11:15:28,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:28,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 2238 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-12 11:15:28,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:28,933 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-12 11:15:28,933 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:28,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1395152284] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:28,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 11:15:28,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2022-07-12 11:15:28,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950475872] [2022-07-12 11:15:28,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:28,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 11:15:28,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:28,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 11:15:28,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-07-12 11:15:28,936 INFO L87 Difference]: Start difference. First operand 310 states and 424 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 4 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2022-07-12 11:15:29,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:29,283 INFO L93 Difference]: Finished difference Result 605 states and 845 transitions. [2022-07-12 11:15:29,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 11:15:29,284 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 4 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 112 [2022-07-12 11:15:29,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:29,287 INFO L225 Difference]: With dead ends: 605 [2022-07-12 11:15:29,287 INFO L226 Difference]: Without dead ends: 331 [2022-07-12 11:15:29,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2022-07-12 11:15:29,290 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 506 mSDsluCounter, 1742 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 2110 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:29,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [530 Valid, 2110 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 11:15:29,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2022-07-12 11:15:29,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 329. [2022-07-12 11:15:29,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 206 states have (on average 1.233009708737864) internal successors, (254), 209 states have internal predecessors, (254), 97 states have call successors, (97), 23 states have call predecessors, (97), 24 states have return successors, (110), 96 states have call predecessors, (110), 95 states have call successors, (110) [2022-07-12 11:15:29,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 461 transitions. [2022-07-12 11:15:29,326 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 461 transitions. Word has length 112 [2022-07-12 11:15:29,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:29,326 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 461 transitions. [2022-07-12 11:15:29,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 4 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2022-07-12 11:15:29,327 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 461 transitions. [2022-07-12 11:15:29,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-07-12 11:15:29,329 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:29,329 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 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, 1, 1, 1, 1] [2022-07-12 11:15:29,363 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:29,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-07-12 11:15:29,556 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:29,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:29,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1616611866, now seen corresponding path program 1 times [2022-07-12 11:15:29,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:29,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638558851] [2022-07-12 11:15:29,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:29,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:29,653 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:29,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1736616943] [2022-07-12 11:15:29,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:29,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:29,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:29,655 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:15:29,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-12 11:15:30,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:30,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 2379 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-12 11:15:30,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:30,141 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-12 11:15:30,141 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:30,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:30,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638558851] [2022-07-12 11:15:30,142 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:30,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1736616943] [2022-07-12 11:15:30,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1736616943] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:30,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:15:30,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 11:15:30,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010155933] [2022-07-12 11:15:30,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:30,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 11:15:30,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:30,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 11:15:30,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 11:15:30,160 INFO L87 Difference]: Start difference. First operand 329 states and 461 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2022-07-12 11:15:30,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:30,427 INFO L93 Difference]: Finished difference Result 630 states and 894 transitions. [2022-07-12 11:15:30,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 11:15:30,428 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 127 [2022-07-12 11:15:30,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:30,431 INFO L225 Difference]: With dead ends: 630 [2022-07-12 11:15:30,431 INFO L226 Difference]: Without dead ends: 337 [2022-07-12 11:15:30,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-07-12 11:15:30,433 INFO L413 NwaCegarLoop]: 377 mSDtfsCounter, 466 mSDsluCounter, 1418 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 1795 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:30,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [474 Valid, 1795 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 11:15:30,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-07-12 11:15:30,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 329. [2022-07-12 11:15:30,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 206 states have (on average 1.233009708737864) internal successors, (254), 209 states have internal predecessors, (254), 97 states have call successors, (97), 23 states have call predecessors, (97), 24 states have return successors, (110), 96 states have call predecessors, (110), 95 states have call successors, (110) [2022-07-12 11:15:30,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 461 transitions. [2022-07-12 11:15:30,457 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 461 transitions. Word has length 127 [2022-07-12 11:15:30,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:30,458 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 461 transitions. [2022-07-12 11:15:30,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2022-07-12 11:15:30,458 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 461 transitions. [2022-07-12 11:15:30,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-07-12 11:15:30,462 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:30,462 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:15:30,492 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:30,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:30,688 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:30,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:30,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1521582877, now seen corresponding path program 1 times [2022-07-12 11:15:30,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:30,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225742939] [2022-07-12 11:15:30,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:30,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:30,760 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:30,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [766938773] [2022-07-12 11:15:30,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:30,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:30,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:30,762 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:15:30,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-12 11:15:31,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:31,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 2451 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 11:15:31,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:31,331 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-07-12 11:15:31,332 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:31,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:31,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225742939] [2022-07-12 11:15:31,332 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:31,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [766938773] [2022-07-12 11:15:31,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [766938773] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:31,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:15:31,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 11:15:31,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980903528] [2022-07-12 11:15:31,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:31,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 11:15:31,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:31,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 11:15:31,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 11:15:31,334 INFO L87 Difference]: Start difference. First operand 329 states and 461 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 5 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2022-07-12 11:15:31,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:31,763 INFO L93 Difference]: Finished difference Result 640 states and 907 transitions. [2022-07-12 11:15:31,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 11:15:31,764 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 5 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 143 [2022-07-12 11:15:31,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:31,767 INFO L225 Difference]: With dead ends: 640 [2022-07-12 11:15:31,767 INFO L226 Difference]: Without dead ends: 347 [2022-07-12 11:15:31,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-07-12 11:15:31,769 INFO L413 NwaCegarLoop]: 362 mSDtfsCounter, 537 mSDsluCounter, 2046 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 2408 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:31,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [561 Valid, 2408 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 11:15:31,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2022-07-12 11:15:31,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 329. [2022-07-12 11:15:31,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 206 states have (on average 1.233009708737864) internal successors, (254), 209 states have internal predecessors, (254), 97 states have call successors, (97), 23 states have call predecessors, (97), 24 states have return successors, (110), 96 states have call predecessors, (110), 95 states have call successors, (110) [2022-07-12 11:15:31,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 461 transitions. [2022-07-12 11:15:31,791 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 461 transitions. Word has length 143 [2022-07-12 11:15:31,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:31,792 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 461 transitions. [2022-07-12 11:15:31,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 5 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2022-07-12 11:15:31,792 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 461 transitions. [2022-07-12 11:15:31,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-07-12 11:15:31,794 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:31,794 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:15:31,827 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:32,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:32,019 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:32,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:32,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1907107023, now seen corresponding path program 1 times [2022-07-12 11:15:32,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:32,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194315643] [2022-07-12 11:15:32,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:32,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:32,114 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:32,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2095548552] [2022-07-12 11:15:32,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:32,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:32,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:32,116 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:15:32,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-12 11:15:32,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:32,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 2592 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-12 11:15:32,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:32,661 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2022-07-12 11:15:32,662 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:32,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:32,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194315643] [2022-07-12 11:15:32,662 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:32,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2095548552] [2022-07-12 11:15:32,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2095548552] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:32,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:15:32,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 11:15:32,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40833089] [2022-07-12 11:15:32,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:32,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 11:15:32,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:32,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 11:15:32,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-12 11:15:32,665 INFO L87 Difference]: Start difference. First operand 329 states and 461 transitions. Second operand has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-07-12 11:15:32,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:32,958 INFO L93 Difference]: Finished difference Result 595 states and 843 transitions. [2022-07-12 11:15:32,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 11:15:32,959 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 158 [2022-07-12 11:15:32,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:32,962 INFO L225 Difference]: With dead ends: 595 [2022-07-12 11:15:32,962 INFO L226 Difference]: Without dead ends: 331 [2022-07-12 11:15:32,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-07-12 11:15:32,964 INFO L413 NwaCegarLoop]: 373 mSDtfsCounter, 487 mSDsluCounter, 1720 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 491 SdHoareTripleChecker+Valid, 2093 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:32,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [491 Valid, 2093 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 11:15:32,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2022-07-12 11:15:32,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 331. [2022-07-12 11:15:32,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 207 states have (on average 1.2318840579710144) internal successors, (255), 211 states have internal predecessors, (255), 97 states have call successors, (97), 23 states have call predecessors, (97), 25 states have return successors, (112), 96 states have call predecessors, (112), 95 states have call successors, (112) [2022-07-12 11:15:32,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 464 transitions. [2022-07-12 11:15:32,982 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 464 transitions. Word has length 158 [2022-07-12 11:15:32,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:32,982 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 464 transitions. [2022-07-12 11:15:32,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-07-12 11:15:32,983 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 464 transitions. [2022-07-12 11:15:32,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-07-12 11:15:32,985 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:32,985 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:15:33,015 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:33,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:33,212 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:33,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:33,212 INFO L85 PathProgramCache]: Analyzing trace with hash -2069947675, now seen corresponding path program 1 times [2022-07-12 11:15:33,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:33,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880944351] [2022-07-12 11:15:33,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:33,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:33,281 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:33,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1066645238] [2022-07-12 11:15:33,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:33,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:33,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:33,284 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:15:33,311 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-12 11:15:33,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:33,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 2692 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 11:15:33,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:33,857 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-07-12 11:15:33,857 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:33,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:33,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880944351] [2022-07-12 11:15:33,858 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:33,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1066645238] [2022-07-12 11:15:33,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1066645238] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:33,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:15:33,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 11:15:33,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638673702] [2022-07-12 11:15:33,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:33,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 11:15:33,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:33,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 11:15:33,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-12 11:15:33,860 INFO L87 Difference]: Start difference. First operand 331 states and 464 transitions. Second operand has 10 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 5 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 5 states have call successors, (20) [2022-07-12 11:15:34,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:34,305 INFO L93 Difference]: Finished difference Result 613 states and 869 transitions. [2022-07-12 11:15:34,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 11:15:34,306 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 5 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 5 states have call successors, (20) Word has length 174 [2022-07-12 11:15:34,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:34,309 INFO L225 Difference]: With dead ends: 613 [2022-07-12 11:15:34,309 INFO L226 Difference]: Without dead ends: 347 [2022-07-12 11:15:34,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2022-07-12 11:15:34,311 INFO L413 NwaCegarLoop]: 375 mSDtfsCounter, 519 mSDsluCounter, 2404 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 2779 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:34,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [539 Valid, 2779 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 11:15:34,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2022-07-12 11:15:34,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 345. [2022-07-12 11:15:34,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 220 states have (on average 1.240909090909091) internal successors, (273), 223 states have internal predecessors, (273), 98 states have call successors, (98), 23 states have call predecessors, (98), 25 states have return successors, (113), 98 states have call predecessors, (113), 96 states have call successors, (113) [2022-07-12 11:15:34,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 484 transitions. [2022-07-12 11:15:34,329 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 484 transitions. Word has length 174 [2022-07-12 11:15:34,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:34,329 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 484 transitions. [2022-07-12 11:15:34,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 5 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 5 states have call successors, (20) [2022-07-12 11:15:34,330 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 484 transitions. [2022-07-12 11:15:34,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-07-12 11:15:34,332 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:34,332 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-12 11:15:34,363 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:34,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:34,548 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:34,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:34,548 INFO L85 PathProgramCache]: Analyzing trace with hash -586575313, now seen corresponding path program 1 times [2022-07-12 11:15:34,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:34,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138114883] [2022-07-12 11:15:34,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:34,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:34,620 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:34,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1156127912] [2022-07-12 11:15:34,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:34,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:34,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:34,622 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:15:34,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-12 11:15:35,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:35,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 2974 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 11:15:35,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:35,212 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-07-12 11:15:35,212 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:35,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:35,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138114883] [2022-07-12 11:15:35,212 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:35,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1156127912] [2022-07-12 11:15:35,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1156127912] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:35,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:15:35,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 11:15:35,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864615110] [2022-07-12 11:15:35,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:35,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 11:15:35,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:35,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 11:15:35,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 11:15:35,214 INFO L87 Difference]: Start difference. First operand 345 states and 484 transitions. Second operand has 9 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 5 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2022-07-12 11:15:35,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:35,540 INFO L93 Difference]: Finished difference Result 633 states and 897 transitions. [2022-07-12 11:15:35,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 11:15:35,540 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 5 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) Word has length 204 [2022-07-12 11:15:35,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:35,543 INFO L225 Difference]: With dead ends: 633 [2022-07-12 11:15:35,543 INFO L226 Difference]: Without dead ends: 353 [2022-07-12 11:15:35,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-07-12 11:15:35,545 INFO L413 NwaCegarLoop]: 367 mSDtfsCounter, 511 mSDsluCounter, 2024 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 2391 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:35,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 2391 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 11:15:35,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-07-12 11:15:35,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 345. [2022-07-12 11:15:35,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 220 states have (on average 1.240909090909091) internal successors, (273), 223 states have internal predecessors, (273), 98 states have call successors, (98), 23 states have call predecessors, (98), 25 states have return successors, (113), 98 states have call predecessors, (113), 96 states have call successors, (113) [2022-07-12 11:15:35,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 484 transitions. [2022-07-12 11:15:35,564 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 484 transitions. Word has length 204 [2022-07-12 11:15:35,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:35,565 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 484 transitions. [2022-07-12 11:15:35,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 5 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2022-07-12 11:15:35,565 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 484 transitions. [2022-07-12 11:15:35,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-07-12 11:15:35,568 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:35,568 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-12 11:15:35,601 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:35,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:35,783 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:35,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:35,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1182025265, now seen corresponding path program 1 times [2022-07-12 11:15:35,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:35,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500329597] [2022-07-12 11:15:35,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:35,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:35,863 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:35,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [519583591] [2022-07-12 11:15:35,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:35,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:35,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:35,865 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:15:35,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-12 11:15:36,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:36,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 3118 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-12 11:15:36,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:36,596 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-07-12 11:15:36,596 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:36,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:36,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500329597] [2022-07-12 11:15:36,597 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:36,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519583591] [2022-07-12 11:15:36,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [519583591] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:36,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:15:36,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 11:15:36,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188410623] [2022-07-12 11:15:36,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:36,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 11:15:36,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:36,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 11:15:36,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-07-12 11:15:36,599 INFO L87 Difference]: Start difference. First operand 345 states and 484 transitions. Second operand has 11 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 6 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (24), 5 states have call predecessors, (24), 6 states have call successors, (24) [2022-07-12 11:15:37,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:37,112 INFO L93 Difference]: Finished difference Result 627 states and 887 transitions. [2022-07-12 11:15:37,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-12 11:15:37,113 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 6 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (24), 5 states have call predecessors, (24), 6 states have call successors, (24) Word has length 236 [2022-07-12 11:15:37,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:37,115 INFO L225 Difference]: With dead ends: 627 [2022-07-12 11:15:37,115 INFO L226 Difference]: Without dead ends: 347 [2022-07-12 11:15:37,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2022-07-12 11:15:37,117 INFO L413 NwaCegarLoop]: 352 mSDtfsCounter, 582 mSDsluCounter, 2592 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 602 SdHoareTripleChecker+Valid, 2944 SdHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:37,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [602 Valid, 2944 Invalid, 757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 11:15:37,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2022-07-12 11:15:37,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 329. [2022-07-12 11:15:37,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 206 states have (on average 1.233009708737864) internal successors, (254), 209 states have internal predecessors, (254), 97 states have call successors, (97), 23 states have call predecessors, (97), 24 states have return successors, (108), 96 states have call predecessors, (108), 95 states have call successors, (108) [2022-07-12 11:15:37,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 459 transitions. [2022-07-12 11:15:37,133 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 459 transitions. Word has length 236 [2022-07-12 11:15:37,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:37,133 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 459 transitions. [2022-07-12 11:15:37,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 6 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (24), 5 states have call predecessors, (24), 6 states have call successors, (24) [2022-07-12 11:15:37,134 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 459 transitions. [2022-07-12 11:15:37,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-07-12 11:15:37,136 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:37,136 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:15:37,169 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:37,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-07-12 11:15:37,359 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:37,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:37,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1259871209, now seen corresponding path program 1 times [2022-07-12 11:15:37,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:37,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149722915] [2022-07-12 11:15:37,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:37,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:37,434 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:37,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1979741985] [2022-07-12 11:15:37,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:37,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:37,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:37,436 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:15:37,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-12 11:15:38,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:38,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 3400 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 11:15:38,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:38,125 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-12 11:15:38,125 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:38,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:38,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149722915] [2022-07-12 11:15:38,126 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:38,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979741985] [2022-07-12 11:15:38,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1979741985] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:38,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:15:38,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 11:15:38,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752564288] [2022-07-12 11:15:38,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:38,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 11:15:38,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:38,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 11:15:38,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 11:15:38,129 INFO L87 Difference]: Start difference. First operand 329 states and 459 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-12 11:15:38,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:38,160 INFO L93 Difference]: Finished difference Result 446 states and 611 transitions. [2022-07-12 11:15:38,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 11:15:38,161 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 266 [2022-07-12 11:15:38,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:38,166 INFO L225 Difference]: With dead ends: 446 [2022-07-12 11:15:38,166 INFO L226 Difference]: Without dead ends: 339 [2022-07-12 11:15:38,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 11:15:38,167 INFO L413 NwaCegarLoop]: 425 mSDtfsCounter, 16 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 818 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 [2022-07-12 11:15:38,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 818 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 11:15:38,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-07-12 11:15:38,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 334. [2022-07-12 11:15:38,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 211 states have (on average 1.2274881516587677) internal successors, (259), 214 states have internal predecessors, (259), 97 states have call successors, (97), 23 states have call predecessors, (97), 24 states have return successors, (108), 96 states have call predecessors, (108), 95 states have call successors, (108) [2022-07-12 11:15:38,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 464 transitions. [2022-07-12 11:15:38,185 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 464 transitions. Word has length 266 [2022-07-12 11:15:38,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:38,185 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 464 transitions. [2022-07-12 11:15:38,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-12 11:15:38,186 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 464 transitions. [2022-07-12 11:15:38,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-07-12 11:15:38,189 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:38,189 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:15:38,223 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:38,415 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 [2022-07-12 11:15:38,415 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:38,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:38,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1800338285, now seen corresponding path program 1 times [2022-07-12 11:15:38,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:38,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670476260] [2022-07-12 11:15:38,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:38,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:38,494 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:38,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1523981291] [2022-07-12 11:15:38,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:38,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:38,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:38,496 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) [2022-07-12 11:15:38,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-12 11:15:39,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:39,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 3404 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 11:15:39,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:39,193 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2022-07-12 11:15:39,193 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:39,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:39,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670476260] [2022-07-12 11:15:39,194 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:39,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523981291] [2022-07-12 11:15:39,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523981291] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:39,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:15:39,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 11:15:39,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467881535] [2022-07-12 11:15:39,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:39,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 11:15:39,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:39,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 11:15:39,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 11:15:39,197 INFO L87 Difference]: Start difference. First operand 334 states and 464 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-12 11:15:39,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:39,498 INFO L93 Difference]: Finished difference Result 668 states and 945 transitions. [2022-07-12 11:15:39,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 11:15:39,499 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 268 [2022-07-12 11:15:39,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:39,501 INFO L225 Difference]: With dead ends: 668 [2022-07-12 11:15:39,501 INFO L226 Difference]: Without dead ends: 370 [2022-07-12 11:15:39,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-07-12 11:15:39,504 INFO L413 NwaCegarLoop]: 418 mSDtfsCounter, 21 mSDsluCounter, 1522 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 1940 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:39,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 1940 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 11:15:39,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-07-12 11:15:39,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 342. [2022-07-12 11:15:39,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 219 states have (on average 1.2283105022831051) internal successors, (269), 222 states have internal predecessors, (269), 97 states have call successors, (97), 23 states have call predecessors, (97), 24 states have return successors, (108), 96 states have call predecessors, (108), 95 states have call successors, (108) [2022-07-12 11:15:39,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 474 transitions. [2022-07-12 11:15:39,521 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 474 transitions. Word has length 268 [2022-07-12 11:15:39,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:39,521 INFO L495 AbstractCegarLoop]: Abstraction has 342 states and 474 transitions. [2022-07-12 11:15:39,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-12 11:15:39,522 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 474 transitions. [2022-07-12 11:15:39,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-07-12 11:15:39,524 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:39,525 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:15:39,557 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:39,731 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 [2022-07-12 11:15:39,731 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:39,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:39,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1635646233, now seen corresponding path program 1 times [2022-07-12 11:15:39,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:39,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935315324] [2022-07-12 11:15:39,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:39,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:39,819 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:39,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1609202091] [2022-07-12 11:15:39,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:39,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:39,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:39,821 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) [2022-07-12 11:15:39,822 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-12 11:15:40,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:40,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 3395 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 11:15:40,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:40,465 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 228 proven. 0 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2022-07-12 11:15:40,465 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:40,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:40,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935315324] [2022-07-12 11:15:40,466 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:40,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609202091] [2022-07-12 11:15:40,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609202091] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:40,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:15:40,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 11:15:40,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056670451] [2022-07-12 11:15:40,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:40,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 11:15:40,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:40,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 11:15:40,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 11:15:40,468 INFO L87 Difference]: Start difference. First operand 342 states and 474 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-12 11:15:40,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:40,501 INFO L93 Difference]: Finished difference Result 656 states and 921 transitions. [2022-07-12 11:15:40,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 11:15:40,502 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 268 [2022-07-12 11:15:40,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:40,504 INFO L225 Difference]: With dead ends: 656 [2022-07-12 11:15:40,504 INFO L226 Difference]: Without dead ends: 350 [2022-07-12 11:15:40,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 11:15:40,506 INFO L413 NwaCegarLoop]: 416 mSDtfsCounter, 3 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1243 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 [2022-07-12 11:15:40,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1243 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 11:15:40,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2022-07-12 11:15:40,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 346. [2022-07-12 11:15:40,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 223 states have (on average 1.2242152466367713) internal successors, (273), 226 states have internal predecessors, (273), 97 states have call successors, (97), 23 states have call predecessors, (97), 24 states have return successors, (108), 96 states have call predecessors, (108), 95 states have call successors, (108) [2022-07-12 11:15:40,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 478 transitions. [2022-07-12 11:15:40,522 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 478 transitions. Word has length 268 [2022-07-12 11:15:40,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:40,523 INFO L495 AbstractCegarLoop]: Abstraction has 346 states and 478 transitions. [2022-07-12 11:15:40,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-12 11:15:40,523 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 478 transitions. [2022-07-12 11:15:40,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-07-12 11:15:40,525 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:40,525 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:15:40,556 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:40,739 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 [2022-07-12 11:15:40,739 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:40,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:40,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1140663521, now seen corresponding path program 1 times [2022-07-12 11:15:40,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:40,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295830276] [2022-07-12 11:15:40,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:40,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:40,839 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:40,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1993026670] [2022-07-12 11:15:40,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:40,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:40,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:40,842 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) [2022-07-12 11:15:40,843 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-12 11:15:41,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:41,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 3380 conjuncts, 71 conjunts are in the unsatisfiable core [2022-07-12 11:15:41,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:42,096 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 256 proven. 0 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2022-07-12 11:15:42,096 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:42,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:42,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295830276] [2022-07-12 11:15:42,097 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:42,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993026670] [2022-07-12 11:15:42,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1993026670] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:42,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:15:42,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-12 11:15:42,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832418781] [2022-07-12 11:15:42,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:42,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-12 11:15:42,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:42,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-12 11:15:42,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-07-12 11:15:42,099 INFO L87 Difference]: Start difference. First operand 346 states and 478 transitions. Second operand has 13 states, 13 states have (on average 7.923076923076923) internal successors, (103), 13 states have internal predecessors, (103), 6 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2022-07-12 11:15:42,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:42,627 INFO L93 Difference]: Finished difference Result 679 states and 949 transitions. [2022-07-12 11:15:42,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 11:15:42,627 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.923076923076923) internal successors, (103), 13 states have internal predecessors, (103), 6 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) Word has length 268 [2022-07-12 11:15:42,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:42,630 INFO L225 Difference]: With dead ends: 679 [2022-07-12 11:15:42,630 INFO L226 Difference]: Without dead ends: 395 [2022-07-12 11:15:42,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 253 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2022-07-12 11:15:42,633 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 74 mSDsluCounter, 2590 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 2994 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 66 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:42,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 2994 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 302 Invalid, 0 Unknown, 66 Unchecked, 0.3s Time] [2022-07-12 11:15:42,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2022-07-12 11:15:42,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 367. [2022-07-12 11:15:42,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 240 states have (on average 1.2208333333333334) internal successors, (293), 243 states have internal predecessors, (293), 99 states have call successors, (99), 24 states have call predecessors, (99), 26 states have return successors, (116), 99 states have call predecessors, (116), 97 states have call successors, (116) [2022-07-12 11:15:42,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 508 transitions. [2022-07-12 11:15:42,650 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 508 transitions. Word has length 268 [2022-07-12 11:15:42,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:42,650 INFO L495 AbstractCegarLoop]: Abstraction has 367 states and 508 transitions. [2022-07-12 11:15:42,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.923076923076923) internal successors, (103), 13 states have internal predecessors, (103), 6 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2022-07-12 11:15:42,651 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 508 transitions. [2022-07-12 11:15:42,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-07-12 11:15:42,652 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:42,652 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 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, 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] [2022-07-12 11:15:42,688 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:42,868 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 [2022-07-12 11:15:42,868 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:42,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:42,869 INFO L85 PathProgramCache]: Analyzing trace with hash -671372643, now seen corresponding path program 1 times [2022-07-12 11:15:42,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:42,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301449147] [2022-07-12 11:15:42,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:42,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:42,936 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:42,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [354968484] [2022-07-12 11:15:42,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:42,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:42,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:42,938 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) [2022-07-12 11:15:42,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-12 11:15:43,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:43,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 3383 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-12 11:15:43,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:43,600 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 232 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2022-07-12 11:15:43,601 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:43,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:43,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301449147] [2022-07-12 11:15:43,601 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:43,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [354968484] [2022-07-12 11:15:43,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [354968484] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:43,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:15:43,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 11:15:43,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795977517] [2022-07-12 11:15:43,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:43,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 11:15:43,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:43,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 11:15:43,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 11:15:43,604 INFO L87 Difference]: Start difference. First operand 367 states and 508 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-12 11:15:43,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:43,651 INFO L93 Difference]: Finished difference Result 709 states and 999 transitions. [2022-07-12 11:15:43,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 11:15:43,652 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 268 [2022-07-12 11:15:43,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:43,655 INFO L225 Difference]: With dead ends: 709 [2022-07-12 11:15:43,655 INFO L226 Difference]: Without dead ends: 387 [2022-07-12 11:15:43,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 11:15:43,657 INFO L413 NwaCegarLoop]: 434 mSDtfsCounter, 8 mSDsluCounter, 1276 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1710 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:43,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1710 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 11:15:43,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2022-07-12 11:15:43,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 375. [2022-07-12 11:15:43,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 248 states have (on average 1.217741935483871) internal successors, (302), 251 states have internal predecessors, (302), 99 states have call successors, (99), 24 states have call predecessors, (99), 26 states have return successors, (116), 99 states have call predecessors, (116), 97 states have call successors, (116) [2022-07-12 11:15:43,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 517 transitions. [2022-07-12 11:15:43,676 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 517 transitions. Word has length 268 [2022-07-12 11:15:43,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:43,677 INFO L495 AbstractCegarLoop]: Abstraction has 375 states and 517 transitions. [2022-07-12 11:15:43,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-12 11:15:43,677 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 517 transitions. [2022-07-12 11:15:43,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2022-07-12 11:15:43,679 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:43,679 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:15:43,712 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:43,906 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 [2022-07-12 11:15:43,906 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:43,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:43,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1710084882, now seen corresponding path program 1 times [2022-07-12 11:15:43,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:43,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279949554] [2022-07-12 11:15:43,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:43,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:43,990 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:43,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1699031171] [2022-07-12 11:15:43,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:43,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:43,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:43,993 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) [2022-07-12 11:15:44,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-12 11:15:44,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:44,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 3382 conjuncts, 38 conjunts are in the unsatisfiable core [2022-07-12 11:15:44,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:44,854 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 [2022-07-12 11:15:44,874 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 233 proven. 0 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2022-07-12 11:15:44,874 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:44,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:44,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279949554] [2022-07-12 11:15:44,875 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:44,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1699031171] [2022-07-12 11:15:44,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1699031171] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:44,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:15:44,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 11:15:44,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877628149] [2022-07-12 11:15:44,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:44,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 11:15:44,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:44,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 11:15:44,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-07-12 11:15:44,877 INFO L87 Difference]: Start difference. First operand 375 states and 517 transitions. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 6 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) [2022-07-12 11:15:45,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:45,464 INFO L93 Difference]: Finished difference Result 779 states and 1109 transitions. [2022-07-12 11:15:45,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 11:15:45,464 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 6 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) Word has length 270 [2022-07-12 11:15:45,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:45,467 INFO L225 Difference]: With dead ends: 779 [2022-07-12 11:15:45,468 INFO L226 Difference]: Without dead ends: 436 [2022-07-12 11:15:45,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2022-07-12 11:15:45,470 INFO L413 NwaCegarLoop]: 399 mSDtfsCounter, 105 mSDsluCounter, 2543 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 2942 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:45,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 2942 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 11:15:45,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2022-07-12 11:15:45,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 402. [2022-07-12 11:15:45,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 274 states have (on average 1.218978102189781) internal successors, (334), 276 states have internal predecessors, (334), 99 states have call successors, (99), 24 states have call predecessors, (99), 27 states have return successors, (127), 101 states have call predecessors, (127), 97 states have call successors, (127) [2022-07-12 11:15:45,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 560 transitions. [2022-07-12 11:15:45,489 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 560 transitions. Word has length 270 [2022-07-12 11:15:45,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:45,489 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 560 transitions. [2022-07-12 11:15:45,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 6 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) [2022-07-12 11:15:45,489 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 560 transitions. [2022-07-12 11:15:45,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2022-07-12 11:15:45,491 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:45,491 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:15:45,518 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:45,703 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 [2022-07-12 11:15:45,704 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:45,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:45,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1568152296, now seen corresponding path program 1 times [2022-07-12 11:15:45,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:45,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168436638] [2022-07-12 11:15:45,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:45,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:45,801 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:45,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [411180830] [2022-07-12 11:15:45,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:45,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:45,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:45,803 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) [2022-07-12 11:15:45,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-12 11:15:46,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:46,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 3377 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 11:15:46,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:46,412 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2022-07-12 11:15:46,412 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:46,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:46,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168436638] [2022-07-12 11:15:46,413 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:46,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411180830] [2022-07-12 11:15:46,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [411180830] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:46,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:15:46,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 11:15:46,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231441075] [2022-07-12 11:15:46,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:46,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 11:15:46,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:46,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 11:15:46,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 11:15:46,414 INFO L87 Difference]: Start difference. First operand 402 states and 560 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-12 11:15:46,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:46,450 INFO L93 Difference]: Finished difference Result 760 states and 1076 transitions. [2022-07-12 11:15:46,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 11:15:46,451 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 270 [2022-07-12 11:15:46,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:46,454 INFO L225 Difference]: With dead ends: 760 [2022-07-12 11:15:46,454 INFO L226 Difference]: Without dead ends: 394 [2022-07-12 11:15:46,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 11:15:46,456 INFO L413 NwaCegarLoop]: 419 mSDtfsCounter, 2 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1246 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 [2022-07-12 11:15:46,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1246 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 11:15:46,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2022-07-12 11:15:46,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 386. [2022-07-12 11:15:46,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 258 states have (on average 1.2015503875968991) internal successors, (310), 260 states have internal predecessors, (310), 99 states have call successors, (99), 24 states have call predecessors, (99), 27 states have return successors, (127), 101 states have call predecessors, (127), 97 states have call successors, (127) [2022-07-12 11:15:46,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 536 transitions. [2022-07-12 11:15:46,472 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 536 transitions. Word has length 270 [2022-07-12 11:15:46,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:46,474 INFO L495 AbstractCegarLoop]: Abstraction has 386 states and 536 transitions. [2022-07-12 11:15:46,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-12 11:15:46,474 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 536 transitions. [2022-07-12 11:15:46,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2022-07-12 11:15:46,476 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:46,476 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 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, 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] [2022-07-12 11:15:46,507 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:46,703 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 [2022-07-12 11:15:46,704 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:46,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:46,704 INFO L85 PathProgramCache]: Analyzing trace with hash 659173160, now seen corresponding path program 1 times [2022-07-12 11:15:46,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:46,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845545862] [2022-07-12 11:15:46,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:46,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:46,773 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:46,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2004021481] [2022-07-12 11:15:46,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:46,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:46,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:46,775 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) [2022-07-12 11:15:46,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-07-12 11:15:47,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:47,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 3367 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 11:15:47,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:47,426 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 205 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2022-07-12 11:15:47,427 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:15:47,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:47,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845545862] [2022-07-12 11:15:47,427 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:47,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004021481] [2022-07-12 11:15:47,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004021481] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:15:47,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:15:47,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 11:15:47,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002264263] [2022-07-12 11:15:47,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:15:47,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 11:15:47,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:47,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 11:15:47,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 11:15:47,429 INFO L87 Difference]: Start difference. First operand 386 states and 536 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-12 11:15:47,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:47,458 INFO L93 Difference]: Finished difference Result 736 states and 1056 transitions. [2022-07-12 11:15:47,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 11:15:47,459 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 270 [2022-07-12 11:15:47,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:47,462 INFO L225 Difference]: With dead ends: 736 [2022-07-12 11:15:47,463 INFO L226 Difference]: Without dead ends: 386 [2022-07-12 11:15:47,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 11:15:47,466 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 7 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1249 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 [2022-07-12 11:15:47,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1249 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 11:15:47,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2022-07-12 11:15:47,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 386. [2022-07-12 11:15:47,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 258 states have (on average 1.197674418604651) internal successors, (309), 260 states have internal predecessors, (309), 99 states have call successors, (99), 24 states have call predecessors, (99), 27 states have return successors, (127), 101 states have call predecessors, (127), 97 states have call successors, (127) [2022-07-12 11:15:47,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 535 transitions. [2022-07-12 11:15:47,484 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 535 transitions. Word has length 270 [2022-07-12 11:15:47,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:47,485 INFO L495 AbstractCegarLoop]: Abstraction has 386 states and 535 transitions. [2022-07-12 11:15:47,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-12 11:15:47,485 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 535 transitions. [2022-07-12 11:15:47,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-07-12 11:15:47,487 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:47,487 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 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, 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] [2022-07-12 11:15:47,520 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:47,715 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 [2022-07-12 11:15:47,715 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:47,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:47,716 INFO L85 PathProgramCache]: Analyzing trace with hash -692185156, now seen corresponding path program 1 times [2022-07-12 11:15:47,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:47,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795725361] [2022-07-12 11:15:47,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:47,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:47,823 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:47,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [71637405] [2022-07-12 11:15:47,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:47,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:47,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:47,828 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) [2022-07-12 11:15:47,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-07-12 11:15:48,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:48,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 3397 conjuncts, 162 conjunts are in the unsatisfiable core [2022-07-12 11:15:48,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:48,682 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-12 11:15:49,047 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-07-12 11:15:49,048 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 21 treesize of output 20 [2022-07-12 11:15:49,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 11:15:49,054 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 0 case distinctions, treesize of input 21 treesize of output 20 [2022-07-12 11:15:51,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 11:15:51,168 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 0 case distinctions, treesize of input 21 treesize of output 20 [2022-07-12 11:15:51,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 11:15:51,183 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 0 case distinctions, treesize of input 21 treesize of output 20 [2022-07-12 11:15:52,937 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2911 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_2911))) (exists ((v_ArrVal_2912 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_2912)))) is different from true [2022-07-12 11:15:55,203 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2915 Int) (v_ArrVal_2914 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_2915))) (= |c_#memory_$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_2914))))) is different from true [2022-07-12 11:16:03,287 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2915 Int) (v_ArrVal_2914 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_2915))) (= |c_#memory_$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|) 0 v_ArrVal_2914))))) is different from true [2022-07-12 11:16:03,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 11:16:03,593 INFO L356 Elim1Store]: treesize reduction 61, result has 37.1 percent of original size [2022-07-12 11:16:03,593 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 46 treesize of output 98 [2022-07-12 11:16:03,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 11:16:03,650 INFO L356 Elim1Store]: treesize reduction 61, result has 37.1 percent of original size [2022-07-12 11:16:03,650 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 46 treesize of output 98 [2022-07-12 11:16:03,668 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-07-12 11:16:03,668 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 [2022-07-12 11:16:03,692 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 [2022-07-12 11:16:03,717 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 [2022-07-12 11:16:03,740 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 [2022-07-12 11:16:03,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 11:16:03,776 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2022-07-12 11:16:03,792 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 22 [2022-07-12 11:16:03,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 11:16:03,825 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 12 [2022-07-12 11:16:03,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 11:16:03,857 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 34 [2022-07-12 11:16:03,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 11:16:03,919 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 34 [2022-07-12 11:16:12,334 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 15 treesize of output 7 [2022-07-12 11:16:12,337 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 15 treesize of output 7 [2022-07-12 11:16:12,364 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 260 proven. 31 refuted. 0 times theorem prover too weak. 153 trivial. 6 not checked. [2022-07-12 11:16:12,364 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 11:16:15,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:16:15,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795725361] [2022-07-12 11:16:15,287 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:16:15,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71637405] [2022-07-12 11:16:15,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [71637405] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 11:16:15,287 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-12 11:16:15,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2022-07-12 11:16:15,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447412642] [2022-07-12 11:16:15,287 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-12 11:16:15,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-07-12 11:16:15,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:16:15,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-07-12 11:16:15,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=1203, Unknown=21, NotChecked=216, Total=1560 [2022-07-12 11:16:15,289 INFO L87 Difference]: Start difference. First operand 386 states and 535 transitions. Second operand has 35 states, 31 states have (on average 4.419354838709677) internal successors, (137), 32 states have internal predecessors, (137), 14 states have call successors, (28), 8 states have call predecessors, (28), 13 states have return successors, (26), 13 states have call predecessors, (26), 14 states have call successors, (26) [2022-07-12 11:16:37,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:16:37,819 INFO L93 Difference]: Finished difference Result 1135 states and 1765 transitions. [2022-07-12 11:16:37,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-07-12 11:16:37,820 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 31 states have (on average 4.419354838709677) internal successors, (137), 32 states have internal predecessors, (137), 14 states have call successors, (28), 8 states have call predecessors, (28), 13 states have return successors, (26), 13 states have call predecessors, (26), 14 states have call successors, (26) Word has length 276 [2022-07-12 11:16:37,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:16:37,827 INFO L225 Difference]: With dead ends: 1135 [2022-07-12 11:16:37,827 INFO L226 Difference]: Without dead ends: 790 [2022-07-12 11:16:37,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 457 GetRequests, 389 SyntacticMatches, 10 SemanticMatches, 58 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 902 ImplicationChecksByTransitivity, 44.3s TimeCoverageRelationStatistics Valid=258, Invalid=2889, Unknown=57, NotChecked=336, Total=3540 [2022-07-12 11:16:37,831 INFO L413 NwaCegarLoop]: 516 mSDtfsCounter, 602 mSDsluCounter, 4299 mSDsCounter, 0 mSdLazyCounter, 3477 mSolverCounterSat, 637 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 677 SdHoareTripleChecker+Valid, 4815 SdHoareTripleChecker+Invalid, 10434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 637 IncrementalHoareTripleChecker+Valid, 3477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6320 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-12 11:16:37,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [677 Valid, 4815 Invalid, 10434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [637 Valid, 3477 Invalid, 0 Unknown, 6320 Unchecked, 2.6s Time] [2022-07-12 11:16:37,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2022-07-12 11:16:37,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 463. [2022-07-12 11:16:37,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 319 states have (on average 1.2037617554858935) internal successors, (384), 327 states have internal predecessors, (384), 104 states have call successors, (104), 27 states have call predecessors, (104), 38 states have return successors, (198), 108 states have call predecessors, (198), 102 states have call successors, (198) [2022-07-12 11:16:37,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 686 transitions. [2022-07-12 11:16:37,874 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 686 transitions. Word has length 276 [2022-07-12 11:16:37,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:16:37,874 INFO L495 AbstractCegarLoop]: Abstraction has 463 states and 686 transitions. [2022-07-12 11:16:37,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 31 states have (on average 4.419354838709677) internal successors, (137), 32 states have internal predecessors, (137), 14 states have call successors, (28), 8 states have call predecessors, (28), 13 states have return successors, (26), 13 states have call predecessors, (26), 14 states have call successors, (26) [2022-07-12 11:16:37,875 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 686 transitions. [2022-07-12 11:16:37,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2022-07-12 11:16:37,878 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:16:37,878 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:16:37,915 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-07-12 11:16:38,091 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 [2022-07-12 11:16:38,091 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:16:38,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:16:38,092 INFO L85 PathProgramCache]: Analyzing trace with hash 2097513117, now seen corresponding path program 1 times [2022-07-12 11:16:38,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:16:38,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293957200] [2022-07-12 11:16:38,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:16:38,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:16:39,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:39,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:16:39,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:39,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 11:16:39,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:39,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 11:16:39,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:39,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 11:16:39,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:39,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 11:16:39,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:39,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 11:16:39,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:39,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 11:16:39,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:39,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 11:16:39,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:39,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 11:16:39,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:39,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 11:16:39,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:39,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-12 11:16:40,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:40,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:16:40,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:40,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:16:40,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:40,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 11:16:40,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:40,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 11:16:40,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:40,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-12 11:16:40,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:40,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:16:40,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:40,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 11:16:40,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:40,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 11:16:40,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:40,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-12 11:16:40,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:40,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-12 11:16:40,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:40,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-12 11:16:40,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:40,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:16:40,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:40,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:16:40,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:40,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 11:16:40,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:40,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 11:16:40,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:40,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-12 11:16:40,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:40,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:16:40,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:40,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 11:16:40,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:40,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 11:16:40,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:40,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-12 11:16:40,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:40,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-12 11:16:40,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:40,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-07-12 11:16:40,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:40,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:16:40,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:40,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:16:40,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:40,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 11:16:40,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:40,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 11:16:40,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:40,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-12 11:16:40,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:40,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:16:40,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:40,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 11:16:40,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:40,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 11:16:40,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:40,667 INFO L134 CoverageAnalysis]: Checked inductivity of 533 backedges. 22 proven. 93 refuted. 0 times theorem prover too weak. 418 trivial. 0 not checked. [2022-07-12 11:16:40,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:16:40,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293957200] [2022-07-12 11:16:40,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293957200] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 11:16:40,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1556582187] [2022-07-12 11:16:40,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:16:40,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:16:40,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:16:40,669 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) [2022-07-12 11:16:40,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-07-12 11:16:41,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:41,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 3460 conjuncts, 42 conjunts are in the unsatisfiable core [2022-07-12 11:16:41,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:16:41,517 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 9 [2022-07-12 11:16:41,786 INFO L134 CoverageAnalysis]: Checked inductivity of 533 backedges. 105 proven. 13 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked. [2022-07-12 11:16:41,786 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 11:16:42,750 INFO L134 CoverageAnalysis]: Checked inductivity of 533 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2022-07-12 11:16:42,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1556582187] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 11:16:42,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-07-12 11:16:42,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [18, 19] total 35 [2022-07-12 11:16:42,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908571389] [2022-07-12 11:16:42,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:16:42,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-12 11:16:42,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:16:42,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-12 11:16:42,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1110, Unknown=0, NotChecked=0, Total=1190 [2022-07-12 11:16:42,752 INFO L87 Difference]: Start difference. First operand 463 states and 686 transitions. Second operand has 15 states, 14 states have (on average 7.928571428571429) internal successors, (111), 10 states have internal predecessors, (111), 2 states have call successors, (24), 2 states have call predecessors, (24), 5 states have return successors, (25), 5 states have call predecessors, (25), 1 states have call successors, (25) [2022-07-12 11:16:42,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:16:42,978 INFO L93 Difference]: Finished difference Result 905 states and 1357 transitions. [2022-07-12 11:16:42,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 11:16:42,978 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.928571428571429) internal successors, (111), 10 states have internal predecessors, (111), 2 states have call successors, (24), 2 states have call predecessors, (24), 5 states have return successors, (25), 5 states have call predecessors, (25), 1 states have call successors, (25) Word has length 318 [2022-07-12 11:16:42,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:16:42,982 INFO L225 Difference]: With dead ends: 905 [2022-07-12 11:16:42,982 INFO L226 Difference]: Without dead ends: 491 [2022-07-12 11:16:42,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 734 GetRequests, 696 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=92, Invalid=1314, Unknown=0, NotChecked=0, Total=1406 [2022-07-12 11:16:42,987 INFO L413 NwaCegarLoop]: 436 mSDtfsCounter, 17 mSDsluCounter, 5592 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 6028 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 11:16:42,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 6028 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 11:16:42,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2022-07-12 11:16:43,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 471. [2022-07-12 11:16:43,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 327 states have (on average 1.198776758409786) internal successors, (392), 331 states have internal predecessors, (392), 104 states have call successors, (104), 27 states have call predecessors, (104), 38 states have return successors, (198), 112 states have call predecessors, (198), 102 states have call successors, (198) [2022-07-12 11:16:43,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 694 transitions. [2022-07-12 11:16:43,020 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 694 transitions. Word has length 318 [2022-07-12 11:16:43,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:16:43,020 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 694 transitions. [2022-07-12 11:16:43,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.928571428571429) internal successors, (111), 10 states have internal predecessors, (111), 2 states have call successors, (24), 2 states have call predecessors, (24), 5 states have return successors, (25), 5 states have call predecessors, (25), 1 states have call successors, (25) [2022-07-12 11:16:43,020 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 694 transitions. [2022-07-12 11:16:43,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-07-12 11:16:43,023 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:16:43,023 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2022-07-12 11:16:43,054 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-07-12 11:16:43,247 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 [2022-07-12 11:16:43,247 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:16:43,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:16:43,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1860932141, now seen corresponding path program 1 times [2022-07-12 11:16:43,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:16:43,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459280214] [2022-07-12 11:16:43,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:16:43,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:16:43,323 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:16:43,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1139120600] [2022-07-12 11:16:43,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:16:43,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:16:43,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:16:43,325 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) [2022-07-12 11:16:43,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-07-12 11:16:44,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:44,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 3421 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 11:16:44,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:16:44,178 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 265 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-07-12 11:16:44,178 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:16:44,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:16:44,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459280214] [2022-07-12 11:16:44,179 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:16:44,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139120600] [2022-07-12 11:16:44,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1139120600] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:16:44,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:16:44,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 11:16:44,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70810134] [2022-07-12 11:16:44,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:16:44,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 11:16:44,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:16:44,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 11:16:44,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 11:16:44,181 INFO L87 Difference]: Start difference. First operand 471 states and 694 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-12 11:16:44,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:16:44,423 INFO L93 Difference]: Finished difference Result 898 states and 1366 transitions. [2022-07-12 11:16:44,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 11:16:44,424 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 286 [2022-07-12 11:16:44,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:16:44,428 INFO L225 Difference]: With dead ends: 898 [2022-07-12 11:16:44,428 INFO L226 Difference]: Without dead ends: 476 [2022-07-12 11:16:44,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-12 11:16:44,431 INFO L413 NwaCegarLoop]: 425 mSDtfsCounter, 15 mSDsluCounter, 1171 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 1596 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 11:16:44,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 1596 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 11:16:44,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2022-07-12 11:16:44,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 471. [2022-07-12 11:16:44,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 327 states have (on average 1.1896024464831805) internal successors, (389), 331 states have internal predecessors, (389), 104 states have call successors, (104), 27 states have call predecessors, (104), 38 states have return successors, (187), 112 states have call predecessors, (187), 102 states have call successors, (187) [2022-07-12 11:16:44,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 680 transitions. [2022-07-12 11:16:44,457 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 680 transitions. Word has length 286 [2022-07-12 11:16:44,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:16:44,457 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 680 transitions. [2022-07-12 11:16:44,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-12 11:16:44,458 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 680 transitions. [2022-07-12 11:16:44,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-07-12 11:16:44,460 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:16:44,460 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:16:44,491 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-07-12 11:16:44,675 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 [2022-07-12 11:16:44,675 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:16:44,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:16:44,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1840960066, now seen corresponding path program 1 times [2022-07-12 11:16:44,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:16:44,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760926836] [2022-07-12 11:16:44,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:16:44,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:16:44,747 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:16:44,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1483281892] [2022-07-12 11:16:44,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:16:44,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:16:44,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:16:44,749 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) [2022-07-12 11:16:44,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-07-12 11:16:45,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:45,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 3430 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 11:16:45,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:16:45,512 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 249 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2022-07-12 11:16:45,512 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:16:45,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:16:45,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760926836] [2022-07-12 11:16:45,513 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:16:45,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1483281892] [2022-07-12 11:16:45,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1483281892] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:16:45,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:16:45,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 11:16:45,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885443273] [2022-07-12 11:16:45,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:16:45,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 11:16:45,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:16:45,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 11:16:45,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 11:16:45,516 INFO L87 Difference]: Start difference. First operand 471 states and 680 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-12 11:16:45,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:16:45,751 INFO L93 Difference]: Finished difference Result 885 states and 1331 transitions. [2022-07-12 11:16:45,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 11:16:45,752 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 288 [2022-07-12 11:16:45,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:16:45,755 INFO L225 Difference]: With dead ends: 885 [2022-07-12 11:16:45,755 INFO L226 Difference]: Without dead ends: 463 [2022-07-12 11:16:45,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 11:16:45,759 INFO L413 NwaCegarLoop]: 428 mSDtfsCounter, 7 mSDsluCounter, 1175 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1603 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 11:16:45,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1603 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 11:16:45,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2022-07-12 11:16:45,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 460. [2022-07-12 11:16:45,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 318 states have (on average 1.1855345911949686) internal successors, (377), 320 states have internal predecessors, (377), 104 states have call successors, (104), 27 states have call predecessors, (104), 36 states have return successors, (174), 112 states have call predecessors, (174), 102 states have call successors, (174) [2022-07-12 11:16:45,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 655 transitions. [2022-07-12 11:16:45,780 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 655 transitions. Word has length 288 [2022-07-12 11:16:45,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:16:45,781 INFO L495 AbstractCegarLoop]: Abstraction has 460 states and 655 transitions. [2022-07-12 11:16:45,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-12 11:16:45,781 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 655 transitions. [2022-07-12 11:16:45,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2022-07-12 11:16:45,783 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:16:45,783 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2022-07-12 11:16:45,815 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-07-12 11:16:46,011 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 [2022-07-12 11:16:46,011 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:16:46,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:16:46,012 INFO L85 PathProgramCache]: Analyzing trace with hash -2044016266, now seen corresponding path program 1 times [2022-07-12 11:16:46,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:16:46,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345867143] [2022-07-12 11:16:46,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:16:46,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:16:46,089 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:16:46,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [832771666] [2022-07-12 11:16:46,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:16:46,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:16:46,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:16:46,091 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) [2022-07-12 11:16:46,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-07-12 11:16:46,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:46,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 3450 conjuncts, 51 conjunts are in the unsatisfiable core [2022-07-12 11:16:46,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:16:46,849 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 9 [2022-07-12 11:16:47,141 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 262 proven. 10 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2022-07-12 11:16:47,141 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 11:16:48,319 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 9 proven. 93 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked. [2022-07-12 11:16:48,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:16:48,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345867143] [2022-07-12 11:16:48,320 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:16:48,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832771666] [2022-07-12 11:16:48,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [832771666] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 11:16:48,320 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 11:16:48,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 18] total 32 [2022-07-12 11:16:48,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364004339] [2022-07-12 11:16:48,321 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 11:16:48,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-07-12 11:16:48,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:16:48,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-07-12 11:16:48,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=920, Unknown=0, NotChecked=0, Total=992 [2022-07-12 11:16:48,323 INFO L87 Difference]: Start difference. First operand 460 states and 655 transitions. Second operand has 32 states, 27 states have (on average 6.555555555555555) internal successors, (177), 23 states have internal predecessors, (177), 9 states have call successors, (39), 3 states have call predecessors, (39), 10 states have return successors, (41), 13 states have call predecessors, (41), 8 states have call successors, (41) [2022-07-12 11:16:49,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:16:49,515 INFO L93 Difference]: Finished difference Result 947 states and 1353 transitions. [2022-07-12 11:16:49,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-07-12 11:16:49,516 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 27 states have (on average 6.555555555555555) internal successors, (177), 23 states have internal predecessors, (177), 9 states have call successors, (39), 3 states have call predecessors, (39), 10 states have return successors, (41), 13 states have call predecessors, (41), 8 states have call successors, (41) Word has length 292 [2022-07-12 11:16:49,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:16:49,520 INFO L225 Difference]: With dead ends: 947 [2022-07-12 11:16:49,520 INFO L226 Difference]: Without dead ends: 536 [2022-07-12 11:16:49,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 588 GetRequests, 551 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=101, Invalid=1305, Unknown=0, NotChecked=0, Total=1406 [2022-07-12 11:16:49,522 INFO L413 NwaCegarLoop]: 427 mSDtfsCounter, 42 mSDsluCounter, 10285 mSDsCounter, 0 mSdLazyCounter, 1581 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 10712 SdHoareTripleChecker+Invalid, 1595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-12 11:16:49,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 10712 Invalid, 1595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1581 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-12 11:16:49,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2022-07-12 11:16:49,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 496. [2022-07-12 11:16:49,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 352 states have (on average 1.1846590909090908) internal successors, (417), 351 states have internal predecessors, (417), 105 states have call successors, (105), 27 states have call predecessors, (105), 37 states have return successors, (180), 117 states have call predecessors, (180), 103 states have call successors, (180) [2022-07-12 11:16:49,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 702 transitions. [2022-07-12 11:16:49,549 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 702 transitions. Word has length 292 [2022-07-12 11:16:49,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:16:49,549 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 702 transitions. [2022-07-12 11:16:49,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 27 states have (on average 6.555555555555555) internal successors, (177), 23 states have internal predecessors, (177), 9 states have call successors, (39), 3 states have call predecessors, (39), 10 states have return successors, (41), 13 states have call predecessors, (41), 8 states have call successors, (41) [2022-07-12 11:16:49,550 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 702 transitions. [2022-07-12 11:16:49,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-07-12 11:16:49,552 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:16:49,552 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:16:49,587 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-07-12 11:16:49,779 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 [2022-07-12 11:16:49,779 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:16:49,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:16:49,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1694848783, now seen corresponding path program 1 times [2022-07-12 11:16:49,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:16:49,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822797216] [2022-07-12 11:16:49,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:16:49,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:16:49,851 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:16:49,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1123440027] [2022-07-12 11:16:49,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:16:49,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:16:49,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:16:49,853 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) [2022-07-12 11:16:49,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-07-12 11:16:50,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:50,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 3451 conjuncts, 99 conjunts are in the unsatisfiable core [2022-07-12 11:16:50,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:16:50,630 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-12 11:16:50,901 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-07-12 11:16:50,902 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 23 treesize of output 22 [2022-07-12 11:16:52,876 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-12 11:16:52,878 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-07-12 11:16:57,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 11:16:57,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 11:16:57,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 11:16:57,519 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-07-12 11:16:57,533 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-07-12 11:16:57,533 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 12 treesize of output 14 [2022-07-12 11:16:57,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 11:16:57,590 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 0 case distinctions, treesize of input 23 treesize of output 22 [2022-07-12 11:16:57,806 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_4103 (Array Int Int))) (= (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_4103) |c_#memory_int|)) is different from true [2022-07-12 11:16:58,306 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 257 proven. 31 refuted. 3 times theorem prover too weak. 176 trivial. 0 not checked. [2022-07-12 11:16:58,306 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 11:16:58,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:16:58,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822797216] [2022-07-12 11:16:58,676 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:16:58,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123440027] [2022-07-12 11:16:58,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1123440027] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 11:16:58,677 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-12 11:16:58,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2022-07-12 11:16:58,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847565070] [2022-07-12 11:16:58,677 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-12 11:16:58,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-07-12 11:16:58,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:16:58,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-07-12 11:16:58,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=756, Unknown=17, NotChecked=56, Total=930 [2022-07-12 11:16:58,679 INFO L87 Difference]: Start difference. First operand 496 states and 702 transitions. Second operand has 30 states, 28 states have (on average 4.928571428571429) internal successors, (138), 25 states have internal predecessors, (138), 14 states have call successors, (29), 7 states have call predecessors, (29), 10 states have return successors, (27), 12 states have call predecessors, (27), 14 states have call successors, (27) [2022-07-12 11:17:03,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:17:03,102 INFO L93 Difference]: Finished difference Result 1260 states and 1895 transitions. [2022-07-12 11:17:03,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-07-12 11:17:03,103 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 28 states have (on average 4.928571428571429) internal successors, (138), 25 states have internal predecessors, (138), 14 states have call successors, (29), 7 states have call predecessors, (29), 10 states have return successors, (27), 12 states have call predecessors, (27), 14 states have call successors, (27) Word has length 288 [2022-07-12 11:17:03,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:17:03,108 INFO L225 Difference]: With dead ends: 1260 [2022-07-12 11:17:03,108 INFO L226 Difference]: Without dead ends: 818 [2022-07-12 11:17:03,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 414 SyntacticMatches, 11 SemanticMatches, 37 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=152, Invalid=1225, Unknown=33, NotChecked=72, Total=1482 [2022-07-12 11:17:03,111 INFO L413 NwaCegarLoop]: 511 mSDtfsCounter, 385 mSDsluCounter, 3651 mSDsCounter, 0 mSdLazyCounter, 3030 mSolverCounterSat, 415 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 4162 SdHoareTripleChecker+Invalid, 8613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 415 IncrementalHoareTripleChecker+Valid, 3030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5168 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-12 11:17:03,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 4162 Invalid, 8613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [415 Valid, 3030 Invalid, 0 Unknown, 5168 Unchecked, 2.2s Time] [2022-07-12 11:17:03,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2022-07-12 11:17:03,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 509. [2022-07-12 11:17:03,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 361 states have (on average 1.18005540166205) internal successors, (426), 361 states have internal predecessors, (426), 106 states have call successors, (106), 29 states have call predecessors, (106), 40 states have return successors, (185), 118 states have call predecessors, (185), 104 states have call successors, (185) [2022-07-12 11:17:03,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 717 transitions. [2022-07-12 11:17:03,150 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 717 transitions. Word has length 288 [2022-07-12 11:17:03,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:17:03,151 INFO L495 AbstractCegarLoop]: Abstraction has 509 states and 717 transitions. [2022-07-12 11:17:03,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 28 states have (on average 4.928571428571429) internal successors, (138), 25 states have internal predecessors, (138), 14 states have call successors, (29), 7 states have call predecessors, (29), 10 states have return successors, (27), 12 states have call predecessors, (27), 14 states have call successors, (27) [2022-07-12 11:17:03,151 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 717 transitions. [2022-07-12 11:17:03,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-07-12 11:17:03,154 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:17:03,154 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2022-07-12 11:17:03,186 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-07-12 11:17:03,367 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 [2022-07-12 11:17:03,367 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:17:03,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:17:03,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1520028329, now seen corresponding path program 1 times [2022-07-12 11:17:03,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:17:03,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230031098] [2022-07-12 11:17:03,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:17:03,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:17:03,432 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:17:03,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [541638113] [2022-07-12 11:17:03,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:17:03,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:17:03,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:17:03,434 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) [2022-07-12 11:17:03,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-07-12 11:17:04,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:17:04,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 3446 conjuncts, 157 conjunts are in the unsatisfiable core [2022-07-12 11:17:04,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:17:04,291 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 9 [2022-07-12 11:17:06,618 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_4354 Int) (v_ArrVal_4352 Int)) (and (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_4354)) |c_#memory_$Pointer$.offset|) (= |c_#memory_$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_4352))))) is different from true [2022-07-12 11:17:08,633 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_4354 Int) (v_ArrVal_4352 Int)) (and (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_4354)) |c_#memory_$Pointer$.offset|) (= |c_#memory_$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|) 0 v_ArrVal_4352))))) is different from true [2022-07-12 11:17:08,679 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-07-12 11:17:08,680 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 21 treesize of output 30 [2022-07-12 11:17:08,698 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-07-12 11:17:08,698 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 21 treesize of output 30 [2022-07-12 11:17:11,237 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_4358 Int) (v_ArrVal_4356 Int)) (and (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_4358)) |c_#memory_$Pointer$.offset|) (= |c_#memory_$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_4356))))) is different from true [2022-07-12 11:17:38,054 WARN L233 SmtUtils]: Spent 9.33s on a formula simplification that was a NOOP. DAG size: 33 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-12 11:17:47,240 WARN L233 SmtUtils]: Spent 9.10s on a formula simplification that was a NOOP. DAG size: 33 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-12 11:18:08,848 WARN L233 SmtUtils]: Spent 21.35s on a formula simplification. DAG size of input: 34 DAG size of output: 33 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-12 11:18:08,864 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 41 treesize of output 33 [2022-07-12 11:18:08,867 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 32 treesize of output 24 [2022-07-12 11:18:08,926 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 283 proven. 68 refuted. 15 times theorem prover too weak. 72 trivial. 19 not checked. [2022-07-12 11:18:08,926 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 11:18:12,331 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_4378 Int) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_233| Int)) (= (select (select (store |c_#memory_$Pointer$.base| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_233| (store (select |c_#memory_$Pointer$.base| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_233|) 0 v_ArrVal_4378)) c_s_sift_up_~queue.base) (+ 40 c_s_sift_up_~queue.offset)) 0)) (forall ((|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_233| Int) (v_ArrVal_4377 Int)) (= (select (select (store |c_#memory_$Pointer$.offset| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_233| (store (select |c_#memory_$Pointer$.offset| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_233|) 0 v_ArrVal_4377)) c_s_sift_up_~queue.base) (+ 40 c_s_sift_up_~queue.offset)) 0))) is different from false [2022-07-12 11:18:12,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:18:12,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230031098] [2022-07-12 11:18:12,332 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:18:12,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [541638113] [2022-07-12 11:18:12,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [541638113] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 11:18:12,332 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-12 11:18:12,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2022-07-12 11:18:12,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257607218] [2022-07-12 11:18:12,333 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-12 11:18:12,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-07-12 11:18:12,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:18:12,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-07-12 11:18:12,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=1542, Unknown=7, NotChecked=324, Total=1980 [2022-07-12 11:18:12,335 INFO L87 Difference]: Start difference. First operand 509 states and 717 transitions. Second operand has 39 states, 33 states have (on average 5.303030303030303) internal successors, (175), 36 states have internal predecessors, (175), 16 states have call successors, (33), 5 states have call predecessors, (33), 12 states have return successors, (31), 14 states have call predecessors, (31), 16 states have call successors, (31) [2022-07-12 11:18:15,534 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_4354 Int) (v_ArrVal_4352 Int)) (and (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_4354)) |c_#memory_$Pointer$.offset|) (= |c_#memory_$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$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_4352))))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_4358 Int) (v_ArrVal_4356 Int)) (and (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_4358)) |c_#memory_$Pointer$.offset|) (= |c_#memory_$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_4356)))))) is different from true [2022-07-12 11:18:33,192 WARN L233 SmtUtils]: Spent 8.63s on a formula simplification that was a NOOP. DAG size: 38 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-12 11:18:43,893 WARN L233 SmtUtils]: Spent 8.55s on a formula simplification that was a NOOP. DAG size: 38 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-12 11:18:54,352 WARN L233 SmtUtils]: Spent 8.36s on a formula simplification that was a NOOP. DAG size: 38 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-12 11:19:10,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:19:10,566 INFO L93 Difference]: Finished difference Result 1477 states and 2238 transitions. [2022-07-12 11:19:10,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-07-12 11:19:10,567 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 33 states have (on average 5.303030303030303) internal successors, (175), 36 states have internal predecessors, (175), 16 states have call successors, (33), 5 states have call predecessors, (33), 12 states have return successors, (31), 14 states have call predecessors, (31), 16 states have call successors, (31) Word has length 286 [2022-07-12 11:19:10,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:19:10,573 INFO L225 Difference]: With dead ends: 1477 [2022-07-12 11:19:10,573 INFO L226 Difference]: Without dead ends: 1029 [2022-07-12 11:19:10,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 331 SyntacticMatches, 8 SemanticMatches, 77 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 1069 ImplicationChecksByTransitivity, 118.8s TimeCoverageRelationStatistics Valid=341, Invalid=5064, Unknown=17, NotChecked=740, Total=6162 [2022-07-12 11:19:10,579 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 436 mSDsluCounter, 10135 mSDsCounter, 0 mSdLazyCounter, 8970 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 10680 SdHoareTripleChecker+Invalid, 16775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 8970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7547 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-07-12 11:19:10,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 10680 Invalid, 16775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 8970 Invalid, 0 Unknown, 7547 Unchecked, 6.0s Time] [2022-07-12 11:19:10,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2022-07-12 11:19:10,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 849. [2022-07-12 11:19:10,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 849 states, 611 states have (on average 1.1751227495908347) internal successors, (718), 612 states have internal predecessors, (718), 178 states have call successors, (178), 34 states have call predecessors, (178), 58 states have return successors, (420), 202 states have call predecessors, (420), 176 states have call successors, (420) [2022-07-12 11:19:10,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1316 transitions. [2022-07-12 11:19:10,637 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1316 transitions. Word has length 286 [2022-07-12 11:19:10,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:19:10,637 INFO L495 AbstractCegarLoop]: Abstraction has 849 states and 1316 transitions. [2022-07-12 11:19:10,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 33 states have (on average 5.303030303030303) internal successors, (175), 36 states have internal predecessors, (175), 16 states have call successors, (33), 5 states have call predecessors, (33), 12 states have return successors, (31), 14 states have call predecessors, (31), 16 states have call successors, (31) [2022-07-12 11:19:10,638 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1316 transitions. [2022-07-12 11:19:10,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-07-12 11:19:10,642 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:19:10,643 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:19:10,669 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-07-12 11:19:10,851 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 [2022-07-12 11:19:10,851 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:19:10,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:19:10,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1387708210, now seen corresponding path program 1 times [2022-07-12 11:19:10,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:19:10,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69615612] [2022-07-12 11:19:10,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:19:10,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:19:10,918 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:19:10,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [995229675] [2022-07-12 11:19:10,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:19:10,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:19:10,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:19:10,920 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) [2022-07-12 11:19:10,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-07-12 11:19:11,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:19:11,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 3464 conjuncts, 95 conjunts are in the unsatisfiable core [2022-07-12 11:19:11,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:19:11,679 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-12 11:19:12,015 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-07-12 11:19:12,015 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 23 treesize of output 22 [2022-07-12 11:19:13,955 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-12 11:19:13,961 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-07-12 11:19:14,675 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-07-12 11:19:14,677 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-12 11:19:19,298 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-07-12 11:19:19,299 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 12 treesize of output 14 [2022-07-12 11:19:19,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 11:19:19,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 11:19:19,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 11:19:19,308 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-07-12 11:19:19,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 11:19:19,372 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 0 case distinctions, treesize of input 23 treesize of output 22 [2022-07-12 11:19:19,562 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_4627 (Array Int Int))) (= (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_4627) |c_#memory_int|)) is different from true [2022-07-12 11:19:20,033 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 257 proven. 34 refuted. 3 times theorem prover too weak. 176 trivial. 0 not checked. [2022-07-12 11:19:20,034 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 11:19:20,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:19:20,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69615612] [2022-07-12 11:19:20,419 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:19:20,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [995229675] [2022-07-12 11:19:20,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [995229675] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 11:19:20,419 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-12 11:19:20,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2022-07-12 11:19:20,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776048116] [2022-07-12 11:19:20,419 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-12 11:19:20,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-07-12 11:19:20,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:19:20,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-07-12 11:19:20,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=702, Unknown=16, NotChecked=54, Total=870 [2022-07-12 11:19:20,421 INFO L87 Difference]: Start difference. First operand 849 states and 1316 transitions. Second operand has 29 states, 27 states have (on average 5.222222222222222) internal successors, (141), 25 states have internal predecessors, (141), 15 states have call successors, (30), 7 states have call predecessors, (30), 10 states have return successors, (28), 12 states have call predecessors, (28), 15 states have call successors, (28) [2022-07-12 11:19:24,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:19:24,940 INFO L93 Difference]: Finished difference Result 1738 states and 2778 transitions. [2022-07-12 11:19:24,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-07-12 11:19:24,940 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 27 states have (on average 5.222222222222222) internal successors, (141), 25 states have internal predecessors, (141), 15 states have call successors, (30), 7 states have call predecessors, (30), 10 states have return successors, (28), 12 states have call predecessors, (28), 15 states have call successors, (28) Word has length 293 [2022-07-12 11:19:24,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:19:24,947 INFO L225 Difference]: With dead ends: 1738 [2022-07-12 11:19:24,947 INFO L226 Difference]: Without dead ends: 1031 [2022-07-12 11:19:24,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 420 SyntacticMatches, 13 SemanticMatches, 36 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=150, Invalid=1153, Unknown=33, NotChecked=70, Total=1406 [2022-07-12 11:19:24,953 INFO L413 NwaCegarLoop]: 483 mSDtfsCounter, 406 mSDsluCounter, 3190 mSDsCounter, 0 mSdLazyCounter, 3004 mSolverCounterSat, 422 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 3673 SdHoareTripleChecker+Invalid, 7873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 422 IncrementalHoareTripleChecker+Valid, 3004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4447 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-12 11:19:24,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [481 Valid, 3673 Invalid, 7873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [422 Valid, 3004 Invalid, 0 Unknown, 4447 Unchecked, 2.2s Time] [2022-07-12 11:19:24,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2022-07-12 11:19:25,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 846. [2022-07-12 11:19:25,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 846 states, 609 states have (on average 1.1756978653530377) internal successors, (716), 609 states have internal predecessors, (716), 178 states have call successors, (178), 34 states have call predecessors, (178), 57 states have return successors, (417), 202 states have call predecessors, (417), 176 states have call successors, (417) [2022-07-12 11:19:25,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 1311 transitions. [2022-07-12 11:19:25,011 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 1311 transitions. Word has length 293 [2022-07-12 11:19:25,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:19:25,012 INFO L495 AbstractCegarLoop]: Abstraction has 846 states and 1311 transitions. [2022-07-12 11:19:25,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 27 states have (on average 5.222222222222222) internal successors, (141), 25 states have internal predecessors, (141), 15 states have call successors, (30), 7 states have call predecessors, (30), 10 states have return successors, (28), 12 states have call predecessors, (28), 15 states have call successors, (28) [2022-07-12 11:19:25,013 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 1311 transitions. [2022-07-12 11:19:25,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-07-12 11:19:25,018 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:19:25,018 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 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, 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] [2022-07-12 11:19:25,051 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-07-12 11:19:25,243 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 [2022-07-12 11:19:25,243 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:19:25,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:19:25,244 INFO L85 PathProgramCache]: Analyzing trace with hash -2140330028, now seen corresponding path program 2 times [2022-07-12 11:19:25,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:19:25,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700073456] [2022-07-12 11:19:25,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:19:25,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:19:25,311 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:19:25,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1534148142] [2022-07-12 11:19:25,312 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 11:19:25,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:19:25,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:19:25,313 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) [2022-07-12 11:19:25,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-07-12 11:19:27,418 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-12 11:19:27,418 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 11:19:27,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 3410 conjuncts, 41 conjunts are in the unsatisfiable core [2022-07-12 11:19:27,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:19:27,555 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 280 proven. 10 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2022-07-12 11:19:27,556 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 11:19:28,488 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 52 proven. 53 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2022-07-12 11:19:28,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:19:28,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700073456] [2022-07-12 11:19:28,489 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:19:28,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1534148142] [2022-07-12 11:19:28,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1534148142] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 11:19:28,490 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 11:19:28,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 18] total 26 [2022-07-12 11:19:28,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307381459] [2022-07-12 11:19:28,491 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 11:19:28,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-07-12 11:19:28,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:19:28,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-07-12 11:19:28,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-07-12 11:19:28,493 INFO L87 Difference]: Start difference. First operand 846 states and 1311 transitions. Second operand has 26 states, 23 states have (on average 7.565217391304348) internal successors, (174), 17 states have internal predecessors, (174), 7 states have call successors, (32), 3 states have call predecessors, (32), 9 states have return successors, (35), 12 states have call predecessors, (35), 6 states have call successors, (35) [2022-07-12 11:19:29,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:19:29,140 INFO L93 Difference]: Finished difference Result 1555 states and 2417 transitions. [2022-07-12 11:19:29,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-12 11:19:29,141 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 23 states have (on average 7.565217391304348) internal successors, (174), 17 states have internal predecessors, (174), 7 states have call successors, (32), 3 states have call predecessors, (32), 9 states have return successors, (35), 12 states have call predecessors, (35), 6 states have call successors, (35) Word has length 290 [2022-07-12 11:19:29,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:19:29,149 INFO L225 Difference]: With dead ends: 1555 [2022-07-12 11:19:29,149 INFO L226 Difference]: Without dead ends: 829 [2022-07-12 11:19:29,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 582 GetRequests, 553 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=791, Unknown=0, NotChecked=0, Total=870 [2022-07-12 11:19:29,154 INFO L413 NwaCegarLoop]: 437 mSDtfsCounter, 37 mSDsluCounter, 8092 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 8529 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 11:19:29,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 8529 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 793 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 11:19:29,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 829 states. [2022-07-12 11:19:29,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 829 to 811. [2022-07-12 11:19:29,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 811 states, 583 states have (on average 1.169811320754717) internal successors, (682), 583 states have internal predecessors, (682), 170 states have call successors, (170), 34 states have call predecessors, (170), 56 states have return successors, (390), 193 states have call predecessors, (390), 168 states have call successors, (390) [2022-07-12 11:19:29,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 1242 transitions. [2022-07-12 11:19:29,222 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 1242 transitions. Word has length 290 [2022-07-12 11:19:29,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:19:29,223 INFO L495 AbstractCegarLoop]: Abstraction has 811 states and 1242 transitions. [2022-07-12 11:19:29,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 23 states have (on average 7.565217391304348) internal successors, (174), 17 states have internal predecessors, (174), 7 states have call successors, (32), 3 states have call predecessors, (32), 9 states have return successors, (35), 12 states have call predecessors, (35), 6 states have call successors, (35) [2022-07-12 11:19:29,223 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 1242 transitions. [2022-07-12 11:19:29,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2022-07-12 11:19:29,228 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:19:29,228 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 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] [2022-07-12 11:19:29,267 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-07-12 11:19:29,455 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 [2022-07-12 11:19:29,455 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:19:29,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:19:29,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1221274755, now seen corresponding path program 1 times [2022-07-12 11:19:29,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:19:29,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675048888] [2022-07-12 11:19:29,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:19:29,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:19:29,519 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:19:29,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1533954914] [2022-07-12 11:19:29,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:19:29,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:19:29,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:19:29,521 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) [2022-07-12 11:19:29,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-07-12 11:19:30,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:19:30,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 3441 conjuncts, 120 conjunts are in the unsatisfiable core [2022-07-12 11:19:30,341 INFO L286 TraceCheckSpWp]: Computing forward predicates...