./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 355537246d5dfb9690a92cc5d0cbf014736bcc62122f38f5559ea0fbf5331d1c --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 22:55:19,791 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 22:55:19,796 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 22:55:19,838 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 22:55:19,839 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 22:55:19,839 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 22:55:19,840 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 22:55:19,841 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 22:55:19,842 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 22:55:19,843 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 22:55:19,844 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 22:55:19,844 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 22:55:19,845 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 22:55:19,845 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 22:55:19,846 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 22:55:19,847 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 22:55:19,847 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 22:55:19,848 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 22:55:19,849 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 22:55:19,850 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 22:55:19,852 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 22:55:19,852 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 22:55:19,853 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 22:55:19,854 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 22:55:19,854 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 22:55:19,856 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 22:55:19,858 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 22:55:19,858 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 22:55:19,859 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 22:55:19,859 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 22:55:19,860 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 22:55:19,860 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 22:55:19,860 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 22:55:19,861 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 22:55:19,861 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 22:55:19,862 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 22:55:19,862 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 22:55:19,863 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 22:55:19,863 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 22:55:19,863 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 22:55:19,864 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 22:55:19,864 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 22:55:19,865 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-13 22:55:19,882 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 22:55:19,882 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 22:55:19,882 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 22:55:19,883 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 22:55:19,883 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 22:55:19,883 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 22:55:19,884 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 22:55:19,884 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 22:55:19,884 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 22:55:19,884 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 22:55:19,884 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 22:55:19,884 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 22:55:19,885 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 22:55:19,885 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 22:55:19,885 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 22:55:19,885 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 22:55:19,885 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 22:55:19,885 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 22:55:19,885 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 22:55:19,886 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 22:55:19,886 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 22:55:19,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 22:55:19,886 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 22:55:19,886 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 22:55:19,886 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 22:55:19,887 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 22:55:19,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 22:55:19,887 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 22:55:19,887 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 22:55:19,887 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 22:55:19,887 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 355537246d5dfb9690a92cc5d0cbf014736bcc62122f38f5559ea0fbf5331d1c [2022-07-13 22:55:20,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 22:55:20,058 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 22:55:20,060 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 22:55:20,061 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 22:55:20,061 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 22:55:20,062 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2022-07-13 22:55:20,098 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f68729ab/5a77e9f5d302498ca0aacb3da7766ec8/FLAGee9badd8a [2022-07-13 22:55:20,619 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 22:55:20,619 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2022-07-13 22:55:20,666 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f68729ab/5a77e9f5d302498ca0aacb3da7766ec8/FLAGee9badd8a [2022-07-13 22:55:20,881 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f68729ab/5a77e9f5d302498ca0aacb3da7766ec8 [2022-07-13 22:55:20,884 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 22:55:20,891 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 22:55:20,901 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 22:55:20,901 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 22:55:20,903 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 22:55:20,904 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 10:55:20" (1/1) ... [2022-07-13 22:55:20,909 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@702e268 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:55:20, skipping insertion in model container [2022-07-13 22:55:20,910 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 10:55:20" (1/1) ... [2022-07-13 22:55:20,915 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 22:55:21,026 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 22:55:21,181 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4506,4519] [2022-07-13 22:55:21,184 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4566,4579] [2022-07-13 22:55:21,601 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:21,605 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:21,605 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:21,606 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:21,609 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:21,629 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:21,634 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:21,635 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:21,636 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:21,637 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:21,638 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:21,638 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:21,638 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:21,898 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-13 22:55:21,899 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-13 22:55:21,899 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-13 22:55:21,900 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-13 22:55:21,901 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-13 22:55:21,901 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-13 22:55:21,902 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-13 22:55:21,902 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-13 22:55:21,903 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-13 22:55:21,903 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-13 22:55:22,013 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-13 22:55:22,046 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,050 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,054 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,065 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,136 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,138 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,138 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,138 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,139 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,139 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,140 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,144 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,145 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,145 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,145 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,146 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,146 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,155 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,156 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,156 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,157 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,166 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,167 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,194 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,194 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,194 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,219 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 22:55:22,249 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 22:55:22,266 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4506,4519] [2022-07-13 22:55:22,266 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4566,4579] [2022-07-13 22:55:22,296 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,297 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,297 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,297 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,298 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,303 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,304 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,304 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,304 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,305 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,305 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,305 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,306 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,330 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-13 22:55:22,331 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-13 22:55:22,331 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-13 22:55:22,332 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-13 22:55:22,332 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-13 22:55:22,333 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-13 22:55:22,333 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-13 22:55:22,333 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-13 22:55:22,334 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-13 22:55:22,334 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-13 22:55:22,376 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-13 22:55:22,388 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,389 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,389 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,392 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,423 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,424 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,424 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,424 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,425 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,425 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,425 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,426 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,426 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,426 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,427 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,427 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,427 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,428 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,428 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,429 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,429 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,430 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,430 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,435 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,435 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,435 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:55:22,442 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 22:55:22,608 INFO L208 MainTranslator]: Completed translation [2022-07-13 22:55:22,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:55:22 WrapperNode [2022-07-13 22:55:22,609 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 22:55:22,610 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 22:55:22,611 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 22:55:22,611 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 22:55:22,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:55:22" (1/1) ... [2022-07-13 22:55:22,699 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:55:22" (1/1) ... [2022-07-13 22:55:22,759 INFO L137 Inliner]: procedures = 697, calls = 1887, calls flagged for inlining = 60, calls inlined = 15, statements flattened = 919 [2022-07-13 22:55:22,760 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 22:55:22,761 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 22:55:22,761 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 22:55:22,762 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 22:55:22,767 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:55:22" (1/1) ... [2022-07-13 22:55:22,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:55:22" (1/1) ... [2022-07-13 22:55:22,777 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:55:22" (1/1) ... [2022-07-13 22:55:22,777 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:55:22" (1/1) ... [2022-07-13 22:55:22,819 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:55:22" (1/1) ... [2022-07-13 22:55:22,824 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:55:22" (1/1) ... [2022-07-13 22:55:22,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:55:22" (1/1) ... [2022-07-13 22:55:22,837 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 22:55:22,838 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 22:55:22,838 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 22:55:22,838 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 22:55:22,839 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:55:22" (1/1) ... [2022-07-13 22:55:22,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 22:55:22,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:55:22,922 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-13 22:55:22,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-13 22:55:22,973 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_either [2022-07-13 22:55:22,974 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_either [2022-07-13 22:55:22,974 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2022-07-13 22:55:22,974 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2022-07-13 22:55:22,974 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-07-13 22:55:22,974 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-07-13 22:55:22,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 22:55:22,975 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-07-13 22:55:22,975 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-07-13 22:55:22,975 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-07-13 22:55:22,975 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-07-13 22:55:22,975 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-07-13 22:55:22,975 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-07-13 22:55:22,976 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2022-07-13 22:55:22,976 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2022-07-13 22:55:22,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 22:55:22,977 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-07-13 22:55:22,978 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-07-13 22:55:22,979 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-13 22:55:22,979 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-13 22:55:22,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-13 22:55:22,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 22:55:22,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-13 22:55:22,980 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2022-07-13 22:55:22,980 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2022-07-13 22:55:22,980 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-07-13 22:55:22,985 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-07-13 22:55:22,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 22:55:22,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 22:55:22,985 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-07-13 22:55:22,985 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-07-13 22:55:22,985 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-07-13 22:55:22,986 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-07-13 22:55:22,986 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-07-13 22:55:22,986 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-07-13 22:55:22,986 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2022-07-13 22:55:22,986 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2022-07-13 22:55:22,986 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-07-13 22:55:22,986 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-07-13 22:55:22,986 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-13 22:55:22,986 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-13 22:55:22,987 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-07-13 22:55:22,987 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-07-13 22:55:22,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 22:55:22,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-13 22:55:22,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-13 22:55:22,987 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2022-07-13 22:55:22,987 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2022-07-13 22:55:22,987 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-07-13 22:55:22,987 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-07-13 22:55:22,987 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-07-13 22:55:22,988 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-07-13 22:55:22,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 22:55:22,988 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-07-13 22:55:22,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-07-13 22:55:22,988 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2022-07-13 22:55:22,988 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2022-07-13 22:55:22,988 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-13 22:55:22,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-13 22:55:22,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 22:55:23,303 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 22:55:23,320 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 22:55:24,174 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 22:55:24,186 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 22:55:24,187 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-07-13 22:55:24,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 10:55:24 BoogieIcfgContainer [2022-07-13 22:55:24,189 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 22:55:24,192 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 22:55:24,192 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 22:55:24,195 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 22:55:24,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 10:55:20" (1/3) ... [2022-07-13 22:55:24,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@792ed37a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 10:55:24, skipping insertion in model container [2022-07-13 22:55:24,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:55:22" (2/3) ... [2022-07-13 22:55:24,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@792ed37a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 10:55:24, skipping insertion in model container [2022-07-13 22:55:24,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 10:55:24" (3/3) ... [2022-07-13 22:55:24,197 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_either_harness.i [2022-07-13 22:55:24,209 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 22:55:24,209 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-13 22:55:24,257 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 22:55:24,262 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@84aca59, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1db47dfb [2022-07-13 22:55:24,262 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-13 22:55:24,266 INFO L276 IsEmpty]: Start isEmpty. Operand has 358 states, 218 states have (on average 1.2660550458715596) internal successors, (276), 221 states have internal predecessors, (276), 113 states have call successors, (113), 24 states have call predecessors, (113), 24 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2022-07-13 22:55:24,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-13 22:55:24,277 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:55:24,277 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:55:24,278 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:55:24,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:55:24,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1703596242, now seen corresponding path program 1 times [2022-07-13 22:55:24,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:55:24,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977463792] [2022-07-13 22:55:24,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:24,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:55:24,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:24,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 22:55:24,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:24,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 22:55:24,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:24,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 22:55:24,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:24,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 22:55:24,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:24,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 22:55:24,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:24,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 22:55:24,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:24,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-13 22:55:24,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:24,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 22:55:24,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:24,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 22:55:24,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:24,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-13 22:55:24,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:24,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-13 22:55:24,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:24,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-13 22:55:24,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:24,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-13 22:55:24,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:24,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-13 22:55:24,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:24,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-13 22:55:24,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:24,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-13 22:55:24,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:24,865 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-07-13 22:55:24,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:55:24,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977463792] [2022-07-13 22:55:24,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977463792] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:55:24,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:55:24,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 22:55:24,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612841218] [2022-07-13 22:55:24,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:55:24,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 22:55:24,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:55:24,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 22:55:24,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-13 22:55:24,891 INFO L87 Difference]: Start difference. First operand has 358 states, 218 states have (on average 1.2660550458715596) internal successors, (276), 221 states have internal predecessors, (276), 113 states have call successors, (113), 24 states have call predecessors, (113), 24 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 22:55:25,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:55:25,649 INFO L93 Difference]: Finished difference Result 821 states and 1341 transitions. [2022-07-13 22:55:25,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 22:55:25,651 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 103 [2022-07-13 22:55:25,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:55:25,661 INFO L225 Difference]: With dead ends: 821 [2022-07-13 22:55:25,662 INFO L226 Difference]: Without dead ends: 469 [2022-07-13 22:55:25,668 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 [2022-07-13 22:55:25,670 INFO L413 NwaCegarLoop]: 473 mSDtfsCounter, 267 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 394 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 394 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-13 22:55:25,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 623 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [394 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-13 22:55:25,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2022-07-13 22:55:25,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 351. [2022-07-13 22:55:25,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 213 states have (on average 1.2300469483568075) internal successors, (262), 215 states have internal predecessors, (262), 113 states have call successors, (113), 24 states have call predecessors, (113), 23 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2022-07-13 22:55:25,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 486 transitions. [2022-07-13 22:55:25,723 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 486 transitions. Word has length 103 [2022-07-13 22:55:25,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:55:25,723 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 486 transitions. [2022-07-13 22:55:25,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 22:55:25,724 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 486 transitions. [2022-07-13 22:55:25,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-13 22:55:25,726 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:55:25,727 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:55:25,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 22:55:25,727 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:55:25,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:55:25,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1175202252, now seen corresponding path program 1 times [2022-07-13 22:55:25,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:55:25,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172622492] [2022-07-13 22:55:25,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:25,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:55:25,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:25,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 22:55:25,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:25,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 22:55:25,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:25,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 22:55:25,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:25,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 22:55:25,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:25,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 22:55:25,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:25,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 22:55:25,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:25,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-13 22:55:25,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:25,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 22:55:25,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:25,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 22:55:25,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:25,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-13 22:55:25,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:25,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-13 22:55:25,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:25,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-13 22:55:25,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:25,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-13 22:55:25,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:25,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-13 22:55:25,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:25,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-13 22:55:25,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:25,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-13 22:55:25,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:25,988 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-07-13 22:55:25,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:55:25,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172622492] [2022-07-13 22:55:25,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172622492] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 22:55:25,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735232027] [2022-07-13 22:55:25,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:25,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:55:25,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:55:26,004 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 22:55:26,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-13 22:55:26,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:26,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 2158 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 22:55:26,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:55:26,362 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-07-13 22:55:26,362 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:55:26,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735232027] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:55:26,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 22:55:26,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-07-13 22:55:26,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383901097] [2022-07-13 22:55:26,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:55:26,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 22:55:26,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:55:26,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 22:55:26,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-13 22:55:26,365 INFO L87 Difference]: Start difference. First operand 351 states and 486 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 22:55:26,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:55:26,382 INFO L93 Difference]: Finished difference Result 437 states and 596 transitions. [2022-07-13 22:55:26,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 22:55:26,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 103 [2022-07-13 22:55:26,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:55:26,384 INFO L225 Difference]: With dead ends: 437 [2022-07-13 22:55:26,384 INFO L226 Difference]: Without dead ends: 352 [2022-07-13 22:55:26,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-13 22:55:26,386 INFO L413 NwaCegarLoop]: 485 mSDtfsCounter, 0 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 965 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 22:55:26,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 965 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 22:55:26,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2022-07-13 22:55:26,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 352. [2022-07-13 22:55:26,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 214 states have (on average 1.2289719626168225) internal successors, (263), 216 states have internal predecessors, (263), 113 states have call successors, (113), 24 states have call predecessors, (113), 23 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2022-07-13 22:55:26,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 487 transitions. [2022-07-13 22:55:26,417 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 487 transitions. Word has length 103 [2022-07-13 22:55:26,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:55:26,417 INFO L495 AbstractCegarLoop]: Abstraction has 352 states and 487 transitions. [2022-07-13 22:55:26,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-13 22:55:26,418 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 487 transitions. [2022-07-13 22:55:26,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-07-13 22:55:26,420 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:55:26,420 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:55:26,442 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-13 22:55:26,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:55:26,634 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:55:26,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:55:26,634 INFO L85 PathProgramCache]: Analyzing trace with hash -99696786, now seen corresponding path program 1 times [2022-07-13 22:55:26,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:55:26,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840923667] [2022-07-13 22:55:26,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:26,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:55:26,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:26,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 22:55:26,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:26,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 22:55:26,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:26,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 22:55:26,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:26,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 22:55:26,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:26,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 22:55:26,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:26,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 22:55:26,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:26,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-13 22:55:26,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:26,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 22:55:26,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:26,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 22:55:26,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:26,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-13 22:55:26,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:26,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-13 22:55:26,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:26,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-13 22:55:26,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:26,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-13 22:55:26,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:26,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-13 22:55:26,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:26,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-13 22:55:26,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:26,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-13 22:55:26,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:26,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-13 22:55:26,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:26,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-13 22:55:26,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:26,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-13 22:55:26,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:26,913 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-07-13 22:55:26,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:55:26,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840923667] [2022-07-13 22:55:26,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840923667] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 22:55:26,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [37334941] [2022-07-13 22:55:26,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:26,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:55:26,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:55:26,915 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 22:55:26,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-13 22:55:27,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:27,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 2271 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-13 22:55:27,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:55:27,310 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-07-13 22:55:27,310 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:55:27,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [37334941] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:55:27,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 22:55:27,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2022-07-13 22:55:27,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931862113] [2022-07-13 22:55:27,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:55:27,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 22:55:27,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:55:27,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 22:55:27,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-07-13 22:55:27,312 INFO L87 Difference]: Start difference. First operand 352 states and 487 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-13 22:55:27,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:55:27,506 INFO L93 Difference]: Finished difference Result 670 states and 938 transitions. [2022-07-13 22:55:27,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 22:55:27,519 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 124 [2022-07-13 22:55:27,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:55:27,522 INFO L225 Difference]: With dead ends: 670 [2022-07-13 22:55:27,522 INFO L226 Difference]: Without dead ends: 354 [2022-07-13 22:55:27,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-07-13 22:55:27,524 INFO L413 NwaCegarLoop]: 445 mSDtfsCounter, 504 mSDsluCounter, 1264 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 1709 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 22:55:27,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [520 Valid, 1709 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 22:55:27,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-07-13 22:55:27,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 354. [2022-07-13 22:55:27,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 215 states have (on average 1.2279069767441861) internal successors, (264), 218 states have internal predecessors, (264), 113 states have call successors, (113), 24 states have call predecessors, (113), 24 states have return successors, (119), 111 states have call predecessors, (119), 111 states have call successors, (119) [2022-07-13 22:55:27,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 496 transitions. [2022-07-13 22:55:27,547 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 496 transitions. Word has length 124 [2022-07-13 22:55:27,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:55:27,548 INFO L495 AbstractCegarLoop]: Abstraction has 354 states and 496 transitions. [2022-07-13 22:55:27,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-13 22:55:27,548 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 496 transitions. [2022-07-13 22:55:27,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-07-13 22:55:27,549 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:55:27,550 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:55:27,572 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-13 22:55:27,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-07-13 22:55:27,750 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:55:27,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:55:27,751 INFO L85 PathProgramCache]: Analyzing trace with hash -2138740587, now seen corresponding path program 1 times [2022-07-13 22:55:27,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:55:27,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707151103] [2022-07-13 22:55:27,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:27,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:55:27,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:27,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 22:55:27,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:27,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 22:55:27,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:27,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 22:55:27,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:27,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 22:55:27,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:27,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 22:55:27,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:27,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 22:55:27,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:27,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-13 22:55:27,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:27,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 22:55:27,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:27,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 22:55:27,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:27,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-13 22:55:27,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:27,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 22:55:27,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:27,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-13 22:55:27,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:28,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-13 22:55:28,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:28,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-13 22:55:28,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:28,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-13 22:55:28,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:28,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-13 22:55:28,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:28,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-13 22:55:28,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:28,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-13 22:55:28,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:28,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-13 22:55:28,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:28,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-13 22:55:28,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:28,036 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-07-13 22:55:28,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:55:28,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707151103] [2022-07-13 22:55:28,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707151103] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 22:55:28,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478046070] [2022-07-13 22:55:28,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:28,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:55:28,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:55:28,038 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 22:55:28,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-13 22:55:28,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:28,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 2321 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-13 22:55:28,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:55:28,565 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-07-13 22:55:28,566 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:55:28,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1478046070] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:55:28,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 22:55:28,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2022-07-13 22:55:28,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355892897] [2022-07-13 22:55:28,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:55:28,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 22:55:28,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:55:28,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 22:55:28,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-07-13 22:55:28,567 INFO L87 Difference]: Start difference. First operand 354 states and 496 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2022-07-13 22:55:28,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:55:28,830 INFO L93 Difference]: Finished difference Result 693 states and 993 transitions. [2022-07-13 22:55:28,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 22:55:28,830 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 132 [2022-07-13 22:55:28,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:55:28,832 INFO L225 Difference]: With dead ends: 693 [2022-07-13 22:55:28,832 INFO L226 Difference]: Without dead ends: 375 [2022-07-13 22:55:28,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-07-13 22:55:28,834 INFO L413 NwaCegarLoop]: 452 mSDtfsCounter, 96 mSDsluCounter, 2135 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 2587 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 22:55:28,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 2587 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 22:55:28,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2022-07-13 22:55:28,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 373. [2022-07-13 22:55:28,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 231 states have (on average 1.2380952380952381) internal successors, (286), 234 states have internal predecessors, (286), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2022-07-13 22:55:28,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 533 transitions. [2022-07-13 22:55:28,850 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 533 transitions. Word has length 132 [2022-07-13 22:55:28,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:55:28,851 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 533 transitions. [2022-07-13 22:55:28,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2022-07-13 22:55:28,851 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 533 transitions. [2022-07-13 22:55:28,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-07-13 22:55:28,852 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:55:28,852 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:55:28,887 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-13 22:55:29,072 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 [2022-07-13 22:55:29,073 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:55:29,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:55:29,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1048395964, now seen corresponding path program 1 times [2022-07-13 22:55:29,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:55:29,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147898302] [2022-07-13 22:55:29,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:29,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:55:29,117 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:55:29,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [574783504] [2022-07-13 22:55:29,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:29,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:55:29,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:55:29,132 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) [2022-07-13 22:55:29,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-13 22:55:29,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:29,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 2462 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-13 22:55:29,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:55:29,629 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-07-13 22:55:29,629 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:55:29,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:55:29,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147898302] [2022-07-13 22:55:29,630 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:55:29,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574783504] [2022-07-13 22:55:29,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [574783504] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:55:29,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:55:29,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 22:55:29,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368087026] [2022-07-13 22:55:29,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:55:29,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 22:55:29,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:55:29,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 22:55:29,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 22:55:29,632 INFO L87 Difference]: Start difference. First operand 373 states and 533 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-07-13 22:55:29,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:55:29,958 INFO L93 Difference]: Finished difference Result 718 states and 1050 transitions. [2022-07-13 22:55:29,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 22:55:29,959 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 147 [2022-07-13 22:55:29,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:55:29,962 INFO L225 Difference]: With dead ends: 718 [2022-07-13 22:55:29,962 INFO L226 Difference]: Without dead ends: 381 [2022-07-13 22:55:29,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-07-13 22:55:29,964 INFO L413 NwaCegarLoop]: 439 mSDtfsCounter, 528 mSDsluCounter, 1655 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 2094 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 22:55:29,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [544 Valid, 2094 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 22:55:29,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2022-07-13 22:55:29,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 373. [2022-07-13 22:55:29,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 231 states have (on average 1.2380952380952381) internal successors, (286), 234 states have internal predecessors, (286), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2022-07-13 22:55:29,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 533 transitions. [2022-07-13 22:55:29,978 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 533 transitions. Word has length 147 [2022-07-13 22:55:29,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:55:29,979 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 533 transitions. [2022-07-13 22:55:29,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-07-13 22:55:29,979 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 533 transitions. [2022-07-13 22:55:29,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-07-13 22:55:29,981 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:55:29,981 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:55:30,003 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-07-13 22:55:30,197 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 [2022-07-13 22:55:30,197 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:55:30,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:55:30,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1514523470, now seen corresponding path program 1 times [2022-07-13 22:55:30,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:55:30,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58005075] [2022-07-13 22:55:30,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:30,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:55:30,260 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:55:30,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [564732894] [2022-07-13 22:55:30,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:30,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:55:30,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:55:30,261 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) [2022-07-13 22:55:30,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-13 22:55:30,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:30,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 2534 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-13 22:55:30,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:55:30,707 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-07-13 22:55:30,707 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:55:30,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:55:30,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58005075] [2022-07-13 22:55:30,707 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:55:30,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [564732894] [2022-07-13 22:55:30,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [564732894] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:55:30,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:55:30,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 22:55:30,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175566367] [2022-07-13 22:55:30,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:55:30,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 22:55:30,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:55:30,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 22:55:30,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-13 22:55:30,708 INFO L87 Difference]: Start difference. First operand 373 states and 533 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2022-07-13 22:55:30,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:55:30,971 INFO L93 Difference]: Finished difference Result 744 states and 1088 transitions. [2022-07-13 22:55:30,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 22:55:30,972 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) Word has length 163 [2022-07-13 22:55:30,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:55:30,974 INFO L225 Difference]: With dead ends: 744 [2022-07-13 22:55:30,974 INFO L226 Difference]: Without dead ends: 407 [2022-07-13 22:55:30,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-07-13 22:55:30,976 INFO L413 NwaCegarLoop]: 447 mSDtfsCounter, 117 mSDsluCounter, 2520 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 2967 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 22:55:30,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 2967 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 22:55:30,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2022-07-13 22:55:30,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 373. [2022-07-13 22:55:30,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 231 states have (on average 1.2380952380952381) internal successors, (286), 234 states have internal predecessors, (286), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2022-07-13 22:55:30,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 533 transitions. [2022-07-13 22:55:30,989 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 533 transitions. Word has length 163 [2022-07-13 22:55:30,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:55:30,989 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 533 transitions. [2022-07-13 22:55:30,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2022-07-13 22:55:30,989 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 533 transitions. [2022-07-13 22:55:30,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-13 22:55:30,991 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:55:30,991 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:55:31,012 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-13 22:55:31,204 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 [2022-07-13 22:55:31,204 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:55:31,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:55:31,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1136730081, now seen corresponding path program 1 times [2022-07-13 22:55:31,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:55:31,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209626446] [2022-07-13 22:55:31,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:31,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:55:31,244 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:55:31,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1570694685] [2022-07-13 22:55:31,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:31,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:55:31,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:55:31,246 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) [2022-07-13 22:55:31,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-13 22:55:31,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:31,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 2675 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-13 22:55:31,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:55:31,742 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-07-13 22:55:31,742 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:55:31,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:55:31,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209626446] [2022-07-13 22:55:31,742 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:55:31,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570694685] [2022-07-13 22:55:31,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570694685] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:55:31,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:55:31,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 22:55:31,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292072194] [2022-07-13 22:55:31,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:55:31,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 22:55:31,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:55:31,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 22:55:31,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-13 22:55:31,743 INFO L87 Difference]: Start difference. First operand 373 states and 533 transitions. Second operand has 8 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2022-07-13 22:55:32,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:55:32,069 INFO L93 Difference]: Finished difference Result 683 states and 991 transitions. [2022-07-13 22:55:32,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 22:55:32,069 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) Word has length 178 [2022-07-13 22:55:32,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:55:32,071 INFO L225 Difference]: With dead ends: 683 [2022-07-13 22:55:32,071 INFO L226 Difference]: Without dead ends: 375 [2022-07-13 22:55:32,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-07-13 22:55:32,073 INFO L413 NwaCegarLoop]: 428 mSDtfsCounter, 545 mSDsluCounter, 1994 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 2422 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 22:55:32,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [553 Valid, 2422 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 22:55:32,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2022-07-13 22:55:32,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2022-07-13 22:55:32,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 232 states have (on average 1.2370689655172413) internal successors, (287), 236 states have internal predecessors, (287), 115 states have call successors, (115), 24 states have call predecessors, (115), 26 states have return successors, (138), 114 states have call predecessors, (138), 113 states have call successors, (138) [2022-07-13 22:55:32,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 540 transitions. [2022-07-13 22:55:32,085 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 540 transitions. Word has length 178 [2022-07-13 22:55:32,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:55:32,085 INFO L495 AbstractCegarLoop]: Abstraction has 375 states and 540 transitions. [2022-07-13 22:55:32,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2022-07-13 22:55:32,086 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 540 transitions. [2022-07-13 22:55:32,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-07-13 22:55:32,087 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:55:32,087 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:55:32,121 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-13 22:55:32,307 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 [2022-07-13 22:55:32,307 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:55:32,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:55:32,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1083469799, now seen corresponding path program 1 times [2022-07-13 22:55:32,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:55:32,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809731908] [2022-07-13 22:55:32,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:32,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:55:32,349 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:55:32,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [343874450] [2022-07-13 22:55:32,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:32,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:55:32,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:55:32,350 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) [2022-07-13 22:55:32,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-13 22:55:32,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:32,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 2866 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-13 22:55:32,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:55:32,836 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2022-07-13 22:55:32,836 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:55:32,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:55:32,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809731908] [2022-07-13 22:55:32,837 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:55:32,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343874450] [2022-07-13 22:55:32,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [343874450] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:55:32,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:55:32,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-13 22:55:32,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895077852] [2022-07-13 22:55:32,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:55:32,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 22:55:32,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:55:32,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 22:55:32,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 22:55:32,838 INFO L87 Difference]: Start difference. First operand 375 states and 540 transitions. Second operand has 9 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 5 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2022-07-13 22:55:33,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:55:33,166 INFO L93 Difference]: Finished difference Result 688 states and 1006 transitions. [2022-07-13 22:55:33,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-13 22:55:33,166 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 5 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) Word has length 201 [2022-07-13 22:55:33,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:55:33,168 INFO L225 Difference]: With dead ends: 688 [2022-07-13 22:55:33,168 INFO L226 Difference]: Without dead ends: 378 [2022-07-13 22:55:33,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-07-13 22:55:33,170 INFO L413 NwaCegarLoop]: 422 mSDtfsCounter, 569 mSDsluCounter, 2351 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 2773 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 22:55:33,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [577 Valid, 2773 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 22:55:33,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2022-07-13 22:55:33,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 376. [2022-07-13 22:55:33,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 233 states have (on average 1.2360515021459229) internal successors, (288), 237 states have internal predecessors, (288), 115 states have call successors, (115), 24 states have call predecessors, (115), 26 states have return successors, (138), 114 states have call predecessors, (138), 113 states have call successors, (138) [2022-07-13 22:55:33,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 541 transitions. [2022-07-13 22:55:33,182 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 541 transitions. Word has length 201 [2022-07-13 22:55:33,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:55:33,183 INFO L495 AbstractCegarLoop]: Abstraction has 376 states and 541 transitions. [2022-07-13 22:55:33,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 5 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2022-07-13 22:55:33,183 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 541 transitions. [2022-07-13 22:55:33,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-07-13 22:55:33,184 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:55:33,185 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:55:33,219 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-13 22:55:33,403 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 [2022-07-13 22:55:33,404 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:55:33,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:55:33,404 INFO L85 PathProgramCache]: Analyzing trace with hash 2112387732, now seen corresponding path program 2 times [2022-07-13 22:55:33,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:55:33,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594966343] [2022-07-13 22:55:33,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:33,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:55:33,482 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:55:33,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [887092795] [2022-07-13 22:55:33,483 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 22:55:33,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:55:33,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:55:33,505 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) [2022-07-13 22:55:33,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-13 22:55:33,863 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-13 22:55:33,863 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 22:55:33,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 1848 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 22:55:33,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:55:33,904 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2022-07-13 22:55:33,904 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:55:33,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:55:33,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594966343] [2022-07-13 22:55:33,905 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:55:33,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887092795] [2022-07-13 22:55:33,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [887092795] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:55:33,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:55:33,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 22:55:33,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667094840] [2022-07-13 22:55:33,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:55:33,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 22:55:33,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:55:33,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 22:55:33,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 22:55:33,908 INFO L87 Difference]: Start difference. First operand 376 states and 541 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-13 22:55:33,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:55:33,935 INFO L93 Difference]: Finished difference Result 660 states and 957 transitions. [2022-07-13 22:55:33,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 22:55:33,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 232 [2022-07-13 22:55:33,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:55:33,937 INFO L225 Difference]: With dead ends: 660 [2022-07-13 22:55:33,937 INFO L226 Difference]: Without dead ends: 386 [2022-07-13 22:55:33,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 22:55:33,940 INFO L413 NwaCegarLoop]: 492 mSDtfsCounter, 16 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 22:55:33,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 952 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 22:55:33,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2022-07-13 22:55:33,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 381. [2022-07-13 22:55:33,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 238 states have (on average 1.23109243697479) internal successors, (293), 242 states have internal predecessors, (293), 115 states have call successors, (115), 24 states have call predecessors, (115), 26 states have return successors, (138), 114 states have call predecessors, (138), 113 states have call successors, (138) [2022-07-13 22:55:33,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 546 transitions. [2022-07-13 22:55:33,958 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 546 transitions. Word has length 232 [2022-07-13 22:55:33,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:55:33,959 INFO L495 AbstractCegarLoop]: Abstraction has 381 states and 546 transitions. [2022-07-13 22:55:33,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-13 22:55:33,959 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 546 transitions. [2022-07-13 22:55:33,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-07-13 22:55:33,961 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:55:33,961 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:55:33,982 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-07-13 22:55:34,175 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 [2022-07-13 22:55:34,175 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:55:34,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:55:34,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1034024686, now seen corresponding path program 1 times [2022-07-13 22:55:34,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:55:34,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463086280] [2022-07-13 22:55:34,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:34,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:55:34,227 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:55:34,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2001185349] [2022-07-13 22:55:34,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:34,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:55:34,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:55:34,244 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) [2022-07-13 22:55:34,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-13 22:55:34,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:34,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 2801 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-13 22:55:34,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:55:34,825 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 121 proven. 3 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-07-13 22:55:34,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 22:55:35,143 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 25 proven. 9 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2022-07-13 22:55:35,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:55:35,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463086280] [2022-07-13 22:55:35,144 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:55:35,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001185349] [2022-07-13 22:55:35,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2001185349] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 22:55:35,144 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-13 22:55:35,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2022-07-13 22:55:35,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205853014] [2022-07-13 22:55:35,145 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-13 22:55:35,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-13 22:55:35,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:55:35,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-13 22:55:35,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-07-13 22:55:35,146 INFO L87 Difference]: Start difference. First operand 381 states and 546 transitions. Second operand has 14 states, 12 states have (on average 9.416666666666666) internal successors, (113), 12 states have internal predecessors, (113), 9 states have call successors, (43), 4 states have call predecessors, (43), 4 states have return successors, (39), 5 states have call predecessors, (39), 9 states have call successors, (39) [2022-07-13 22:55:35,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:55:35,467 INFO L93 Difference]: Finished difference Result 716 states and 1045 transitions. [2022-07-13 22:55:35,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 22:55:35,468 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 9.416666666666666) internal successors, (113), 12 states have internal predecessors, (113), 9 states have call successors, (43), 4 states have call predecessors, (43), 4 states have return successors, (39), 5 states have call predecessors, (39), 9 states have call successors, (39) Word has length 204 [2022-07-13 22:55:35,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:55:35,470 INFO L225 Difference]: With dead ends: 716 [2022-07-13 22:55:35,470 INFO L226 Difference]: Without dead ends: 400 [2022-07-13 22:55:35,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 395 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2022-07-13 22:55:35,472 INFO L413 NwaCegarLoop]: 466 mSDtfsCounter, 174 mSDsluCounter, 4248 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 4714 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 22:55:35,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 4714 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 560 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 22:55:35,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2022-07-13 22:55:35,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 394. [2022-07-13 22:55:35,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 250 states have (on average 1.24) internal successors, (310), 253 states have internal predecessors, (310), 116 states have call successors, (116), 24 states have call predecessors, (116), 26 states have return successors, (139), 116 states have call predecessors, (139), 114 states have call successors, (139) [2022-07-13 22:55:35,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 565 transitions. [2022-07-13 22:55:35,487 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 565 transitions. Word has length 204 [2022-07-13 22:55:35,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:55:35,488 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 565 transitions. [2022-07-13 22:55:35,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 9.416666666666666) internal successors, (113), 12 states have internal predecessors, (113), 9 states have call successors, (43), 4 states have call predecessors, (43), 4 states have return successors, (39), 5 states have call predecessors, (39), 9 states have call successors, (39) [2022-07-13 22:55:35,488 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 565 transitions. [2022-07-13 22:55:35,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-07-13 22:55:35,489 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:55:35,490 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:55:35,515 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-13 22:55:35,707 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 [2022-07-13 22:55:35,708 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:55:35,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:55:35,708 INFO L85 PathProgramCache]: Analyzing trace with hash -247754433, now seen corresponding path program 2 times [2022-07-13 22:55:35,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:55:35,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720794757] [2022-07-13 22:55:35,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:35,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:55:35,753 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:55:35,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1980098487] [2022-07-13 22:55:35,754 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 22:55:35,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:55:35,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:55:35,768 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) [2022-07-13 22:55:35,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-13 22:55:36,520 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-13 22:55:36,520 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 22:55:36,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 2942 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-13 22:55:36,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:55:36,640 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-07-13 22:55:36,641 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:55:36,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:55:36,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720794757] [2022-07-13 22:55:36,641 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:55:36,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980098487] [2022-07-13 22:55:36,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980098487] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:55:36,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:55:36,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-13 22:55:36,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597405905] [2022-07-13 22:55:36,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:55:36,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-13 22:55:36,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:55:36,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-13 22:55:36,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-13 22:55:36,642 INFO L87 Difference]: Start difference. First operand 394 states and 565 transitions. Second operand has 10 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 6 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (23), 5 states have call predecessors, (23), 6 states have call successors, (23) [2022-07-13 22:55:37,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:55:37,006 INFO L93 Difference]: Finished difference Result 741 states and 1080 transitions. [2022-07-13 22:55:37,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-13 22:55:37,007 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 6 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (23), 5 states have call predecessors, (23), 6 states have call successors, (23) Word has length 219 [2022-07-13 22:55:37,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:55:37,010 INFO L225 Difference]: With dead ends: 741 [2022-07-13 22:55:37,010 INFO L226 Difference]: Without dead ends: 412 [2022-07-13 22:55:37,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-07-13 22:55:37,012 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 177 mSDsluCounter, 3267 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 3710 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 22:55:37,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 3710 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 22:55:37,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2022-07-13 22:55:37,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 378. [2022-07-13 22:55:37,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 236 states have (on average 1.2330508474576272) internal successors, (291), 239 states have internal predecessors, (291), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (130), 114 states have call predecessors, (130), 113 states have call successors, (130) [2022-07-13 22:55:37,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 536 transitions. [2022-07-13 22:55:37,026 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 536 transitions. Word has length 219 [2022-07-13 22:55:37,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:55:37,027 INFO L495 AbstractCegarLoop]: Abstraction has 378 states and 536 transitions. [2022-07-13 22:55:37,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 6 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (23), 5 states have call predecessors, (23), 6 states have call successors, (23) [2022-07-13 22:55:37,027 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 536 transitions. [2022-07-13 22:55:37,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-07-13 22:55:37,028 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:55:37,029 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:55:37,052 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-13 22:55:37,249 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 [2022-07-13 22:55:37,250 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:55:37,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:55:37,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1511536, now seen corresponding path program 1 times [2022-07-13 22:55:37,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:55:37,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948884200] [2022-07-13 22:55:37,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:37,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:55:37,317 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:55:37,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2019856956] [2022-07-13 22:55:37,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:37,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:55:37,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:55:37,319 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) [2022-07-13 22:55:37,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-13 22:55:37,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:37,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 3083 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-13 22:55:37,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:55:37,953 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2022-07-13 22:55:37,954 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:55:37,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:55:37,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948884200] [2022-07-13 22:55:37,954 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:55:37,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019856956] [2022-07-13 22:55:37,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2019856956] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:55:37,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:55:37,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-13 22:55:37,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399786072] [2022-07-13 22:55:37,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:55:37,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-13 22:55:37,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:55:37,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-13 22:55:37,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-13 22:55:37,956 INFO L87 Difference]: Start difference. First operand 378 states and 536 transitions. Second operand has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 5 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (21), 4 states have call predecessors, (21), 5 states have call successors, (21) [2022-07-13 22:55:38,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:55:38,322 INFO L93 Difference]: Finished difference Result 684 states and 982 transitions. [2022-07-13 22:55:38,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-13 22:55:38,322 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 5 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (21), 4 states have call predecessors, (21), 5 states have call successors, (21) Word has length 234 [2022-07-13 22:55:38,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:55:38,325 INFO L225 Difference]: With dead ends: 684 [2022-07-13 22:55:38,325 INFO L226 Difference]: Without dead ends: 380 [2022-07-13 22:55:38,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2022-07-13 22:55:38,326 INFO L413 NwaCegarLoop]: 418 mSDtfsCounter, 590 mSDsluCounter, 2683 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 594 SdHoareTripleChecker+Valid, 3101 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 22:55:38,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [594 Valid, 3101 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 22:55:38,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2022-07-13 22:55:38,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 380. [2022-07-13 22:55:38,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 237 states have (on average 1.2320675105485233) internal successors, (292), 241 states have internal predecessors, (292), 115 states have call successors, (115), 24 states have call predecessors, (115), 26 states have return successors, (134), 114 states have call predecessors, (134), 113 states have call successors, (134) [2022-07-13 22:55:38,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 541 transitions. [2022-07-13 22:55:38,358 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 541 transitions. Word has length 234 [2022-07-13 22:55:38,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:55:38,358 INFO L495 AbstractCegarLoop]: Abstraction has 380 states and 541 transitions. [2022-07-13 22:55:38,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 5 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (21), 4 states have call predecessors, (21), 5 states have call successors, (21) [2022-07-13 22:55:38,359 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 541 transitions. [2022-07-13 22:55:38,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2022-07-13 22:55:38,361 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:55:38,361 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:55:38,384 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-13 22:55:38,561 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 [2022-07-13 22:55:38,562 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:55:38,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:55:38,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1366410168, now seen corresponding path program 1 times [2022-07-13 22:55:38,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:55:38,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616751099] [2022-07-13 22:55:38,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:38,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:55:38,627 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:55:38,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [417401260] [2022-07-13 22:55:38,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:38,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:55:38,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:55:38,644 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) [2022-07-13 22:55:38,645 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-13 22:55:39,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:39,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 3465 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-13 22:55:39,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:55:39,358 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2022-07-13 22:55:39,359 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:55:39,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:55:39,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616751099] [2022-07-13 22:55:39,359 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:55:39,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [417401260] [2022-07-13 22:55:39,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [417401260] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:55:39,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:55:39,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 22:55:39,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716762572] [2022-07-13 22:55:39,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:55:39,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-13 22:55:39,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:55:39,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-13 22:55:39,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-07-13 22:55:39,361 INFO L87 Difference]: Start difference. First operand 380 states and 541 transitions. Second operand has 11 states, 10 states have (on average 9.9) internal successors, (99), 9 states have internal predecessors, (99), 6 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2022-07-13 22:55:39,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:55:39,851 INFO L93 Difference]: Finished difference Result 689 states and 993 transitions. [2022-07-13 22:55:39,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-13 22:55:39,852 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.9) internal successors, (99), 9 states have internal predecessors, (99), 6 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) Word has length 280 [2022-07-13 22:55:39,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:55:39,854 INFO L225 Difference]: With dead ends: 689 [2022-07-13 22:55:39,854 INFO L226 Difference]: Without dead ends: 383 [2022-07-13 22:55:39,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2022-07-13 22:55:39,856 INFO L413 NwaCegarLoop]: 412 mSDtfsCounter, 614 mSDsluCounter, 3011 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 618 SdHoareTripleChecker+Valid, 3423 SdHoareTripleChecker+Invalid, 839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 22:55:39,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [618 Valid, 3423 Invalid, 839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 22:55:39,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2022-07-13 22:55:39,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 381. [2022-07-13 22:55:39,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 238 states have (on average 1.23109243697479) internal successors, (293), 242 states have internal predecessors, (293), 115 states have call successors, (115), 24 states have call predecessors, (115), 26 states have return successors, (134), 114 states have call predecessors, (134), 113 states have call successors, (134) [2022-07-13 22:55:39,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 542 transitions. [2022-07-13 22:55:39,873 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 542 transitions. Word has length 280 [2022-07-13 22:55:39,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:55:39,874 INFO L495 AbstractCegarLoop]: Abstraction has 381 states and 542 transitions. [2022-07-13 22:55:39,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.9) internal successors, (99), 9 states have internal predecessors, (99), 6 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2022-07-13 22:55:39,874 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 542 transitions. [2022-07-13 22:55:39,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-07-13 22:55:39,875 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:55:39,875 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:55:39,898 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-13 22:55:40,098 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 [2022-07-13 22:55:40,098 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:55:40,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:55:40,098 INFO L85 PathProgramCache]: Analyzing trace with hash 473503328, now seen corresponding path program 1 times [2022-07-13 22:55:40,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:55:40,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489337497] [2022-07-13 22:55:40,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:40,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:55:40,170 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:55:40,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2006008600] [2022-07-13 22:55:40,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:40,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:55:40,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:55:40,180 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) [2022-07-13 22:55:40,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-13 22:55:40,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:40,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 3120 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-13 22:55:40,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:55:40,748 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2022-07-13 22:55:40,748 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:55:40,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:55:40,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489337497] [2022-07-13 22:55:40,748 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:55:40,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2006008600] [2022-07-13 22:55:40,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2006008600] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:55:40,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:55:40,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-13 22:55:40,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413757827] [2022-07-13 22:55:40,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:55:40,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 22:55:40,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:55:40,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 22:55:40,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 22:55:40,750 INFO L87 Difference]: Start difference. First operand 381 states and 542 transitions. Second operand has 9 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 5 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) [2022-07-13 22:55:41,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:55:41,054 INFO L93 Difference]: Finished difference Result 654 states and 938 transitions. [2022-07-13 22:55:41,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 22:55:41,055 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 5 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) Word has length 248 [2022-07-13 22:55:41,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:55:41,060 INFO L225 Difference]: With dead ends: 654 [2022-07-13 22:55:41,060 INFO L226 Difference]: Without dead ends: 388 [2022-07-13 22:55:41,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2022-07-13 22:55:41,062 INFO L413 NwaCegarLoop]: 425 mSDtfsCounter, 573 mSDsluCounter, 2347 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 2772 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 22:55:41,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 2772 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 22:55:41,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2022-07-13 22:55:41,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 383. [2022-07-13 22:55:41,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 239 states have (on average 1.2301255230125523) internal successors, (294), 244 states have internal predecessors, (294), 115 states have call successors, (115), 24 states have call predecessors, (115), 27 states have return successors, (136), 114 states have call predecessors, (136), 113 states have call successors, (136) [2022-07-13 22:55:41,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 545 transitions. [2022-07-13 22:55:41,077 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 545 transitions. Word has length 248 [2022-07-13 22:55:41,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:55:41,078 INFO L495 AbstractCegarLoop]: Abstraction has 383 states and 545 transitions. [2022-07-13 22:55:41,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 5 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) [2022-07-13 22:55:41,079 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 545 transitions. [2022-07-13 22:55:41,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2022-07-13 22:55:41,080 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:55:41,080 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:55:41,103 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-13 22:55:41,319 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 [2022-07-13 22:55:41,319 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:55:41,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:55:41,320 INFO L85 PathProgramCache]: Analyzing trace with hash 648621032, now seen corresponding path program 1 times [2022-07-13 22:55:41,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:55:41,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273006474] [2022-07-13 22:55:41,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:41,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:55:41,368 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:55:41,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [478226873] [2022-07-13 22:55:41,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:41,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:55:41,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:55:41,370 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) [2022-07-13 22:55:41,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-13 22:55:41,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:41,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 3311 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-13 22:55:41,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:55:42,024 INFO L134 CoverageAnalysis]: Checked inductivity of 505 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2022-07-13 22:55:42,024 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:55:42,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:55:42,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273006474] [2022-07-13 22:55:42,024 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:55:42,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [478226873] [2022-07-13 22:55:42,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [478226873] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:55:42,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:55:42,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-13 22:55:42,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214332258] [2022-07-13 22:55:42,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:55:42,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-13 22:55:42,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:55:42,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-13 22:55:42,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-13 22:55:42,026 INFO L87 Difference]: Start difference. First operand 383 states and 545 transitions. Second operand has 10 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 6 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2022-07-13 22:55:42,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:55:42,404 INFO L93 Difference]: Finished difference Result 656 states and 939 transitions. [2022-07-13 22:55:42,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-13 22:55:42,405 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 6 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) Word has length 271 [2022-07-13 22:55:42,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:55:42,407 INFO L225 Difference]: With dead ends: 656 [2022-07-13 22:55:42,407 INFO L226 Difference]: Without dead ends: 388 [2022-07-13 22:55:42,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2022-07-13 22:55:42,408 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 591 mSDsluCounter, 2703 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 3126 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 22:55:42,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 3126 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 22:55:42,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2022-07-13 22:55:42,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 381. [2022-07-13 22:55:42,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 238 states have (on average 1.23109243697479) internal successors, (293), 242 states have internal predecessors, (293), 115 states have call successors, (115), 24 states have call predecessors, (115), 26 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2022-07-13 22:55:42,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 540 transitions. [2022-07-13 22:55:42,420 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 540 transitions. Word has length 271 [2022-07-13 22:55:42,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:55:42,420 INFO L495 AbstractCegarLoop]: Abstraction has 381 states and 540 transitions. [2022-07-13 22:55:42,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 6 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2022-07-13 22:55:42,420 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 540 transitions. [2022-07-13 22:55:42,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2022-07-13 22:55:42,422 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:55:42,422 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:55:42,454 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-07-13 22:55:42,639 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 [2022-07-13 22:55:42,640 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:55:42,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:55:42,640 INFO L85 PathProgramCache]: Analyzing trace with hash 451085598, now seen corresponding path program 1 times [2022-07-13 22:55:42,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:55:42,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37173360] [2022-07-13 22:55:42,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:42,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:55:42,685 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:55:42,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1521576517] [2022-07-13 22:55:42,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:42,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:55:42,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:55:42,687 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) [2022-07-13 22:55:42,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-13 22:55:43,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:43,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 3383 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-13 22:55:43,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:55:43,338 INFO L134 CoverageAnalysis]: Checked inductivity of 557 backedges. 213 proven. 0 refuted. 0 times theorem prover too weak. 344 trivial. 0 not checked. [2022-07-13 22:55:43,338 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:55:43,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:55:43,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37173360] [2022-07-13 22:55:43,338 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:55:43,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1521576517] [2022-07-13 22:55:43,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1521576517] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:55:43,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:55:43,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 22:55:43,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706722575] [2022-07-13 22:55:43,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:55:43,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-13 22:55:43,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:55:43,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-13 22:55:43,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-07-13 22:55:43,340 INFO L87 Difference]: Start difference. First operand 381 states and 540 transitions. Second operand has 11 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 7 states have call successors, (29), 3 states have call predecessors, (29), 4 states have return successors, (26), 6 states have call predecessors, (26), 7 states have call successors, (26) [2022-07-13 22:55:43,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:55:43,730 INFO L93 Difference]: Finished difference Result 670 states and 960 transitions. [2022-07-13 22:55:43,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-13 22:55:43,730 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 7 states have call successors, (29), 3 states have call predecessors, (29), 4 states have return successors, (26), 6 states have call predecessors, (26), 7 states have call successors, (26) Word has length 287 [2022-07-13 22:55:43,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:55:43,732 INFO L225 Difference]: With dead ends: 670 [2022-07-13 22:55:43,733 INFO L226 Difference]: Without dead ends: 404 [2022-07-13 22:55:43,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-07-13 22:55:43,734 INFO L413 NwaCegarLoop]: 445 mSDtfsCounter, 198 mSDsluCounter, 3621 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 4066 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 22:55:43,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 4066 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 687 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 22:55:43,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2022-07-13 22:55:43,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 397. [2022-07-13 22:55:43,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 252 states have (on average 1.2380952380952381) internal successors, (312), 256 states have internal predecessors, (312), 116 states have call successors, (116), 24 states have call predecessors, (116), 27 states have return successors, (137), 116 states have call predecessors, (137), 114 states have call successors, (137) [2022-07-13 22:55:43,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 565 transitions. [2022-07-13 22:55:43,746 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 565 transitions. Word has length 287 [2022-07-13 22:55:43,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:55:43,746 INFO L495 AbstractCegarLoop]: Abstraction has 397 states and 565 transitions. [2022-07-13 22:55:43,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 7 states have call successors, (29), 3 states have call predecessors, (29), 4 states have return successors, (26), 6 states have call predecessors, (26), 7 states have call successors, (26) [2022-07-13 22:55:43,746 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 565 transitions. [2022-07-13 22:55:43,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-07-13 22:55:43,748 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:55:43,748 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:55:43,770 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-07-13 22:55:43,959 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 [2022-07-13 22:55:43,959 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:55:43,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:55:43,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1306212493, now seen corresponding path program 2 times [2022-07-13 22:55:43,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:55:43,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809861088] [2022-07-13 22:55:43,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:43,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:55:44,013 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:55:44,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1120686118] [2022-07-13 22:55:44,014 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 22:55:44,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:55:44,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:55:44,040 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) [2022-07-13 22:55:44,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-07-13 22:55:44,755 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-13 22:55:44,755 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 22:55:44,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 3524 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-13 22:55:44,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:55:44,857 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 611 trivial. 0 not checked. [2022-07-13 22:55:44,858 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:55:44,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:55:44,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809861088] [2022-07-13 22:55:44,858 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:55:44,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120686118] [2022-07-13 22:55:44,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120686118] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:55:44,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:55:44,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-13 22:55:44,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385154972] [2022-07-13 22:55:44,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:55:44,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-13 22:55:44,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:55:44,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-13 22:55:44,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-13 22:55:44,862 INFO L87 Difference]: Start difference. First operand 397 states and 565 transitions. Second operand has 10 states, 10 states have (on average 7.3) internal successors, (73), 8 states have internal predecessors, (73), 6 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (24), 6 states have call predecessors, (24), 5 states have call successors, (24) [2022-07-13 22:55:45,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:55:45,119 INFO L93 Difference]: Finished difference Result 691 states and 990 transitions. [2022-07-13 22:55:45,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-13 22:55:45,119 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 8 states have internal predecessors, (73), 6 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (24), 6 states have call predecessors, (24), 5 states have call successors, (24) Word has length 302 [2022-07-13 22:55:45,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:55:45,122 INFO L225 Difference]: With dead ends: 691 [2022-07-13 22:55:45,124 INFO L226 Difference]: Without dead ends: 414 [2022-07-13 22:55:45,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-07-13 22:55:45,125 INFO L413 NwaCegarLoop]: 463 mSDtfsCounter, 123 mSDsluCounter, 3380 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 3843 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 22:55:45,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 3843 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 22:55:45,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2022-07-13 22:55:45,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 409. [2022-07-13 22:55:45,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 258 states have (on average 1.2364341085271318) internal successors, (319), 262 states have internal predecessors, (319), 121 states have call successors, (121), 25 states have call predecessors, (121), 28 states have return successors, (142), 121 states have call predecessors, (142), 119 states have call successors, (142) [2022-07-13 22:55:45,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 582 transitions. [2022-07-13 22:55:45,153 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 582 transitions. Word has length 302 [2022-07-13 22:55:45,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:55:45,154 INFO L495 AbstractCegarLoop]: Abstraction has 409 states and 582 transitions. [2022-07-13 22:55:45,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 8 states have internal predecessors, (73), 6 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (24), 6 states have call predecessors, (24), 5 states have call successors, (24) [2022-07-13 22:55:45,154 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 582 transitions. [2022-07-13 22:55:45,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2022-07-13 22:55:45,155 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:55:45,156 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:55:45,182 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-07-13 22:55:45,376 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 [2022-07-13 22:55:45,376 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:55:45,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:55:45,377 INFO L85 PathProgramCache]: Analyzing trace with hash 386011154, now seen corresponding path program 1 times [2022-07-13 22:55:45,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:55:45,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592979138] [2022-07-13 22:55:45,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:45,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:55:45,435 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:55:45,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [303424413] [2022-07-13 22:55:45,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:45,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:55:45,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:55:45,437 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) [2022-07-13 22:55:45,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-07-13 22:55:46,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:46,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 3327 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-13 22:55:46,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:55:46,179 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 214 proven. 3 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-07-13 22:55:46,179 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 22:55:46,474 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 50 proven. 28 refuted. 0 times theorem prover too weak. 403 trivial. 0 not checked. [2022-07-13 22:55:46,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:55:46,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592979138] [2022-07-13 22:55:46,474 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:55:46,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303424413] [2022-07-13 22:55:46,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [303424413] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 22:55:46,475 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-13 22:55:46,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 18 [2022-07-13 22:55:46,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397240639] [2022-07-13 22:55:46,475 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-13 22:55:46,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-13 22:55:46,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:55:46,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-13 22:55:46,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2022-07-13 22:55:46,476 INFO L87 Difference]: Start difference. First operand 409 states and 582 transitions. Second operand has 18 states, 16 states have (on average 8.3125) internal successors, (133), 14 states have internal predecessors, (133), 11 states have call successors, (46), 6 states have call predecessors, (46), 4 states have return successors, (41), 7 states have call predecessors, (41), 11 states have call successors, (41) [2022-07-13 22:55:46,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:55:46,737 INFO L93 Difference]: Finished difference Result 763 states and 1095 transitions. [2022-07-13 22:55:46,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-13 22:55:46,738 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 8.3125) internal successors, (133), 14 states have internal predecessors, (133), 11 states have call successors, (46), 6 states have call predecessors, (46), 4 states have return successors, (41), 7 states have call predecessors, (41), 11 states have call successors, (41) Word has length 282 [2022-07-13 22:55:46,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:55:46,741 INFO L225 Difference]: With dead ends: 763 [2022-07-13 22:55:46,741 INFO L226 Difference]: Without dead ends: 428 [2022-07-13 22:55:46,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 567 GetRequests, 547 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=398, Unknown=0, NotChecked=0, Total=462 [2022-07-13 22:55:46,743 INFO L413 NwaCegarLoop]: 444 mSDtfsCounter, 388 mSDsluCounter, 3225 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 3669 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 22:55:46,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 3669 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 22:55:46,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2022-07-13 22:55:46,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 422. [2022-07-13 22:55:46,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 270 states have (on average 1.2444444444444445) internal successors, (336), 273 states have internal predecessors, (336), 122 states have call successors, (122), 25 states have call predecessors, (122), 28 states have return successors, (141), 123 states have call predecessors, (141), 120 states have call successors, (141) [2022-07-13 22:55:46,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 599 transitions. [2022-07-13 22:55:46,758 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 599 transitions. Word has length 282 [2022-07-13 22:55:46,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:55:46,758 INFO L495 AbstractCegarLoop]: Abstraction has 422 states and 599 transitions. [2022-07-13 22:55:46,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 8.3125) internal successors, (133), 14 states have internal predecessors, (133), 11 states have call successors, (46), 6 states have call predecessors, (46), 4 states have return successors, (41), 7 states have call predecessors, (41), 11 states have call successors, (41) [2022-07-13 22:55:46,759 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 599 transitions. [2022-07-13 22:55:46,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2022-07-13 22:55:46,760 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:55:46,760 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:55:46,783 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-07-13 22:55:46,975 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 [2022-07-13 22:55:46,976 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:55:46,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:55:46,976 INFO L85 PathProgramCache]: Analyzing trace with hash -303731720, now seen corresponding path program 2 times [2022-07-13 22:55:46,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:55:46,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331492705] [2022-07-13 22:55:46,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:46,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:55:47,023 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:55:47,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [919145218] [2022-07-13 22:55:47,023 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 22:55:47,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:55:47,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:55:47,032 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) [2022-07-13 22:55:47,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-07-13 22:55:47,481 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-13 22:55:47,481 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 22:55:47,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 1930 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-13 22:55:47,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:55:47,575 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2022-07-13 22:55:47,576 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:55:47,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:55:47,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331492705] [2022-07-13 22:55:47,576 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:55:47,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [919145218] [2022-07-13 22:55:47,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [919145218] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:55:47,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:55:47,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 22:55:47,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461501069] [2022-07-13 22:55:47,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:55:47,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 22:55:47,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:55:47,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 22:55:47,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 22:55:47,578 INFO L87 Difference]: Start difference. First operand 422 states and 599 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2022-07-13 22:55:47,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:55:47,820 INFO L93 Difference]: Finished difference Result 880 states and 1287 transitions. [2022-07-13 22:55:47,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 22:55:47,821 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) Word has length 312 [2022-07-13 22:55:47,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:55:47,824 INFO L225 Difference]: With dead ends: 880 [2022-07-13 22:55:47,824 INFO L226 Difference]: Without dead ends: 494 [2022-07-13 22:55:47,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-07-13 22:55:47,827 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 21 mSDsluCounter, 1763 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2247 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 22:55:47,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2247 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 22:55:47,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2022-07-13 22:55:47,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 438. [2022-07-13 22:55:47,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 286 states have (on average 1.2447552447552448) internal successors, (356), 289 states have internal predecessors, (356), 122 states have call successors, (122), 25 states have call predecessors, (122), 28 states have return successors, (141), 123 states have call predecessors, (141), 120 states have call successors, (141) [2022-07-13 22:55:47,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 619 transitions. [2022-07-13 22:55:47,849 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 619 transitions. Word has length 312 [2022-07-13 22:55:47,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:55:47,849 INFO L495 AbstractCegarLoop]: Abstraction has 438 states and 619 transitions. [2022-07-13 22:55:47,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2022-07-13 22:55:47,850 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 619 transitions. [2022-07-13 22:55:47,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2022-07-13 22:55:47,853 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:55:47,853 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:55:47,875 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-07-13 22:55:48,057 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 [2022-07-13 22:55:48,057 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:55:48,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:55:48,057 INFO L85 PathProgramCache]: Analyzing trace with hash 293720926, now seen corresponding path program 1 times [2022-07-13 22:55:48,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:55:48,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174669164] [2022-07-13 22:55:48,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:48,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:55:48,152 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:55:48,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1459845787] [2022-07-13 22:55:48,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:48,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:55:48,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:55:48,154 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) [2022-07-13 22:55:48,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-07-13 22:55:48,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:48,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 3879 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 22:55:48,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:55:48,901 INFO L134 CoverageAnalysis]: Checked inductivity of 811 backedges. 342 proven. 0 refuted. 0 times theorem prover too weak. 469 trivial. 0 not checked. [2022-07-13 22:55:48,902 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:55:48,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:55:48,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174669164] [2022-07-13 22:55:48,902 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:55:48,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1459845787] [2022-07-13 22:55:48,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1459845787] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:55:48,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:55:48,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 22:55:48,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954506915] [2022-07-13 22:55:48,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:55:48,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 22:55:48,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:55:48,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 22:55:48,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 22:55:48,904 INFO L87 Difference]: Start difference. First operand 438 states and 619 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-13 22:55:48,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:55:48,930 INFO L93 Difference]: Finished difference Result 856 states and 1235 transitions. [2022-07-13 22:55:48,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 22:55:48,930 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 342 [2022-07-13 22:55:48,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:55:48,933 INFO L225 Difference]: With dead ends: 856 [2022-07-13 22:55:48,933 INFO L226 Difference]: Without dead ends: 454 [2022-07-13 22:55:48,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 22:55:48,936 INFO L413 NwaCegarLoop]: 483 mSDtfsCounter, 3 mSDsluCounter, 961 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 22:55:48,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1444 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 22:55:48,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2022-07-13 22:55:48,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 446. [2022-07-13 22:55:48,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 294 states have (on average 1.2380952380952381) internal successors, (364), 297 states have internal predecessors, (364), 122 states have call successors, (122), 25 states have call predecessors, (122), 28 states have return successors, (141), 123 states have call predecessors, (141), 120 states have call successors, (141) [2022-07-13 22:55:48,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 627 transitions. [2022-07-13 22:55:48,960 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 627 transitions. Word has length 342 [2022-07-13 22:55:48,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:55:48,961 INFO L495 AbstractCegarLoop]: Abstraction has 446 states and 627 transitions. [2022-07-13 22:55:48,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-13 22:55:48,961 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 627 transitions. [2022-07-13 22:55:48,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2022-07-13 22:55:48,966 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:55:48,966 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:55:48,989 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-07-13 22:55:49,179 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 [2022-07-13 22:55:49,179 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:55:49,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:55:49,180 INFO L85 PathProgramCache]: Analyzing trace with hash 696410342, now seen corresponding path program 1 times [2022-07-13 22:55:49,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:55:49,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286711839] [2022-07-13 22:55:49,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:49,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:55:49,232 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:55:49,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1715012755] [2022-07-13 22:55:49,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:49,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:55:49,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:55:49,248 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) [2022-07-13 22:55:49,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-07-13 22:55:49,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:49,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 3859 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-13 22:55:49,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:55:49,996 INFO L134 CoverageAnalysis]: Checked inductivity of 811 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 523 trivial. 0 not checked. [2022-07-13 22:55:49,997 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:55:49,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:55:49,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286711839] [2022-07-13 22:55:49,997 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:55:49,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715012755] [2022-07-13 22:55:49,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1715012755] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:55:49,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:55:49,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 22:55:49,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179459005] [2022-07-13 22:55:49,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:55:49,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 22:55:49,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:55:49,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 22:55:49,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 22:55:49,999 INFO L87 Difference]: Start difference. First operand 446 states and 627 transitions. Second operand has 6 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 4 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-07-13 22:55:50,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:55:50,133 INFO L93 Difference]: Finished difference Result 848 states and 1207 transitions. [2022-07-13 22:55:50,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 22:55:50,133 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 4 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 342 [2022-07-13 22:55:50,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:55:50,137 INFO L225 Difference]: With dead ends: 848 [2022-07-13 22:55:50,137 INFO L226 Difference]: Without dead ends: 481 [2022-07-13 22:55:50,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-13 22:55:50,139 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 77 mSDsluCounter, 1980 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 2510 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 22:55:50,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 2510 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 22:55:50,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2022-07-13 22:55:50,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 442. [2022-07-13 22:55:50,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 290 states have (on average 1.2344827586206897) internal successors, (358), 293 states have internal predecessors, (358), 122 states have call successors, (122), 25 states have call predecessors, (122), 28 states have return successors, (141), 123 states have call predecessors, (141), 120 states have call successors, (141) [2022-07-13 22:55:50,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 621 transitions. [2022-07-13 22:55:50,231 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 621 transitions. Word has length 342 [2022-07-13 22:55:50,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:55:50,232 INFO L495 AbstractCegarLoop]: Abstraction has 442 states and 621 transitions. [2022-07-13 22:55:50,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 4 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-07-13 22:55:50,233 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 621 transitions. [2022-07-13 22:55:50,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-07-13 22:55:50,237 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:55:50,237 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:55:50,295 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-07-13 22:55:50,459 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 [2022-07-13 22:55:50,459 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:55:50,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:55:50,460 INFO L85 PathProgramCache]: Analyzing trace with hash -634741136, now seen corresponding path program 1 times [2022-07-13 22:55:50,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:55:50,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386732926] [2022-07-13 22:55:50,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:50,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:55:50,556 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:55:50,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [875669985] [2022-07-13 22:55:50,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:50,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:55:50,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:55:50,570 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) [2022-07-13 22:55:50,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-07-13 22:55:51,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:51,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 3641 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-13 22:55:51,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:55:51,498 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 360 proven. 3 refuted. 0 times theorem prover too weak. 359 trivial. 0 not checked. [2022-07-13 22:55:51,498 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 22:55:51,815 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 50 proven. 9 refuted. 0 times theorem prover too weak. 663 trivial. 0 not checked. [2022-07-13 22:55:51,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:55:51,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386732926] [2022-07-13 22:55:51,815 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:55:51,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875669985] [2022-07-13 22:55:51,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [875669985] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 22:55:51,816 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-13 22:55:51,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2022-07-13 22:55:51,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278055886] [2022-07-13 22:55:51,816 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-13 22:55:51,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-13 22:55:51,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:55:51,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-13 22:55:51,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-07-13 22:55:51,817 INFO L87 Difference]: Start difference. First operand 442 states and 621 transitions. Second operand has 16 states, 14 states have (on average 8.928571428571429) internal successors, (125), 14 states have internal predecessors, (125), 11 states have call successors, (51), 4 states have call predecessors, (51), 4 states have return successors, (47), 7 states have call predecessors, (47), 11 states have call successors, (47) [2022-07-13 22:55:52,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:55:52,161 INFO L93 Difference]: Finished difference Result 781 states and 1102 transitions. [2022-07-13 22:55:52,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-13 22:55:52,162 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 8.928571428571429) internal successors, (125), 14 states have internal predecessors, (125), 11 states have call successors, (51), 4 states have call predecessors, (51), 4 states have return successors, (47), 7 states have call predecessors, (47), 11 states have call successors, (47) Word has length 317 [2022-07-13 22:55:52,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:55:52,165 INFO L225 Difference]: With dead ends: 781 [2022-07-13 22:55:52,165 INFO L226 Difference]: Without dead ends: 450 [2022-07-13 22:55:52,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 638 GetRequests, 620 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2022-07-13 22:55:52,167 INFO L413 NwaCegarLoop]: 442 mSDtfsCounter, 259 mSDsluCounter, 3192 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 3634 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 22:55:52,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 3634 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 22:55:52,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2022-07-13 22:55:52,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 420. [2022-07-13 22:55:52,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 270 states have (on average 1.2296296296296296) internal successors, (332), 273 states have internal predecessors, (332), 121 states have call successors, (121), 25 states have call predecessors, (121), 27 states have return successors, (136), 121 states have call predecessors, (136), 119 states have call successors, (136) [2022-07-13 22:55:52,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 589 transitions. [2022-07-13 22:55:52,184 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 589 transitions. Word has length 317 [2022-07-13 22:55:52,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:55:52,184 INFO L495 AbstractCegarLoop]: Abstraction has 420 states and 589 transitions. [2022-07-13 22:55:52,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 8.928571428571429) internal successors, (125), 14 states have internal predecessors, (125), 11 states have call successors, (51), 4 states have call predecessors, (51), 4 states have return successors, (47), 7 states have call predecessors, (47), 11 states have call successors, (47) [2022-07-13 22:55:52,185 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 589 transitions. [2022-07-13 22:55:52,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2022-07-13 22:55:52,186 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:55:52,187 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:55:52,212 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-07-13 22:55:52,399 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 [2022-07-13 22:55:52,399 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:55:52,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:55:52,400 INFO L85 PathProgramCache]: Analyzing trace with hash 2117085201, now seen corresponding path program 1 times [2022-07-13 22:55:52,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:55:52,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737123234] [2022-07-13 22:55:52,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:52,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:55:52,449 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:55:52,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1516166319] [2022-07-13 22:55:52,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:52,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:55:52,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:55:52,451 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) [2022-07-13 22:55:52,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-07-13 22:55:53,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:53,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 3782 conjuncts, 38 conjunts are in the unsatisfiable core [2022-07-13 22:55:53,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:55:53,423 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 [2022-07-13 22:55:53,435 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 357 proven. 0 refuted. 0 times theorem prover too weak. 470 trivial. 0 not checked. [2022-07-13 22:55:53,435 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:55:53,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:55:53,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737123234] [2022-07-13 22:55:53,436 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:55:53,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1516166319] [2022-07-13 22:55:53,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1516166319] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:55:53,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:55:53,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-13 22:55:53,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708923009] [2022-07-13 22:55:53,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:55:53,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-13 22:55:53,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:55:53,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-13 22:55:53,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-07-13 22:55:53,438 INFO L87 Difference]: Start difference. First operand 420 states and 589 transitions. Second operand has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 6 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (29), 6 states have call predecessors, (29), 6 states have call successors, (29) [2022-07-13 22:55:54,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:55:54,009 INFO L93 Difference]: Finished difference Result 853 states and 1235 transitions. [2022-07-13 22:55:54,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-13 22:55:54,009 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 6 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (29), 6 states have call predecessors, (29), 6 states have call successors, (29) Word has length 332 [2022-07-13 22:55:54,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:55:54,012 INFO L225 Difference]: With dead ends: 853 [2022-07-13 22:55:54,012 INFO L226 Difference]: Without dead ends: 465 [2022-07-13 22:55:54,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2022-07-13 22:55:54,014 INFO L413 NwaCegarLoop]: 458 mSDtfsCounter, 104 mSDsluCounter, 3321 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 3779 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 22:55:54,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 3779 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 768 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 22:55:54,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2022-07-13 22:55:54,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 443. [2022-07-13 22:55:54,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 292 states have (on average 1.2328767123287672) internal successors, (360), 294 states have internal predecessors, (360), 121 states have call successors, (121), 25 states have call predecessors, (121), 28 states have return successors, (149), 123 states have call predecessors, (149), 119 states have call successors, (149) [2022-07-13 22:55:54,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 630 transitions. [2022-07-13 22:55:54,028 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 630 transitions. Word has length 332 [2022-07-13 22:55:54,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:55:54,028 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 630 transitions. [2022-07-13 22:55:54,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 6 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (29), 6 states have call predecessors, (29), 6 states have call successors, (29) [2022-07-13 22:55:54,028 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 630 transitions. [2022-07-13 22:55:54,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2022-07-13 22:55:54,030 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:55:54,030 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:55:54,056 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-07-13 22:55:54,254 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 [2022-07-13 22:55:54,254 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:55:54,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:55:54,255 INFO L85 PathProgramCache]: Analyzing trace with hash -201858609, now seen corresponding path program 1 times [2022-07-13 22:55:54,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:55:54,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549055435] [2022-07-13 22:55:54,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:54,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:55:54,306 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:55:54,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1929523522] [2022-07-13 22:55:54,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:54,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:55:54,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:55:54,307 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) [2022-07-13 22:55:54,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-07-13 22:55:54,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:54,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 3791 conjuncts, 24 conjunts are in the unsatisfiable core [2022-07-13 22:55:54,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:55:55,019 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 356 proven. 0 refuted. 0 times theorem prover too weak. 471 trivial. 0 not checked. [2022-07-13 22:55:55,020 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:55:55,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:55:55,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549055435] [2022-07-13 22:55:55,020 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:55:55,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1929523522] [2022-07-13 22:55:55,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1929523522] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:55:55,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:55:55,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 22:55:55,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940163654] [2022-07-13 22:55:55,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:55:55,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 22:55:55,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:55:55,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 22:55:55,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 22:55:55,022 INFO L87 Difference]: Start difference. First operand 443 states and 630 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-13 22:55:55,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:55:55,059 INFO L93 Difference]: Finished difference Result 896 states and 1304 transitions. [2022-07-13 22:55:55,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 22:55:55,060 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 332 [2022-07-13 22:55:55,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:55:55,063 INFO L225 Difference]: With dead ends: 896 [2022-07-13 22:55:55,063 INFO L226 Difference]: Without dead ends: 489 [2022-07-13 22:55:55,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-13 22:55:55,065 INFO L413 NwaCegarLoop]: 500 mSDtfsCounter, 8 mSDsluCounter, 1476 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1976 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 22:55:55,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1976 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 22:55:55,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2022-07-13 22:55:55,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 471. [2022-07-13 22:55:55,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 320 states have (on average 1.23125) internal successors, (394), 322 states have internal predecessors, (394), 121 states have call successors, (121), 25 states have call predecessors, (121), 28 states have return successors, (149), 123 states have call predecessors, (149), 119 states have call successors, (149) [2022-07-13 22:55:55,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 664 transitions. [2022-07-13 22:55:55,081 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 664 transitions. Word has length 332 [2022-07-13 22:55:55,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:55:55,081 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 664 transitions. [2022-07-13 22:55:55,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-13 22:55:55,082 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 664 transitions. [2022-07-13 22:55:55,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2022-07-13 22:55:55,084 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:55:55,084 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:55:55,125 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-07-13 22:55:55,295 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 [2022-07-13 22:55:55,295 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:55:55,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:55:55,296 INFO L85 PathProgramCache]: Analyzing trace with hash -313018033, now seen corresponding path program 1 times [2022-07-13 22:55:55,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:55:55,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025999874] [2022-07-13 22:55:55,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:55,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:55:55,346 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:55:55,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [136160919] [2022-07-13 22:55:55,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:55,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:55:55,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:55:55,348 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) [2022-07-13 22:55:55,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-07-13 22:55:56,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:56,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 3797 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 22:55:56,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:55:56,097 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 344 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2022-07-13 22:55:56,097 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:55:56,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:55:56,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025999874] [2022-07-13 22:55:56,097 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:55:56,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [136160919] [2022-07-13 22:55:56,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [136160919] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:55:56,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:55:56,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 22:55:56,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041766968] [2022-07-13 22:55:56,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:55:56,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 22:55:56,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:55:56,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 22:55:56,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 22:55:56,099 INFO L87 Difference]: Start difference. First operand 471 states and 664 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-13 22:55:56,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:55:56,126 INFO L93 Difference]: Finished difference Result 895 states and 1284 transitions. [2022-07-13 22:55:56,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 22:55:56,127 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 332 [2022-07-13 22:55:56,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:55:56,129 INFO L225 Difference]: With dead ends: 895 [2022-07-13 22:55:56,129 INFO L226 Difference]: Without dead ends: 460 [2022-07-13 22:55:56,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 22:55:56,132 INFO L413 NwaCegarLoop]: 482 mSDtfsCounter, 2 mSDsluCounter, 953 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1435 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 22:55:56,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1435 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 22:55:56,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2022-07-13 22:55:56,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 451. [2022-07-13 22:55:56,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 300 states have (on average 1.21) internal successors, (363), 302 states have internal predecessors, (363), 121 states have call successors, (121), 25 states have call predecessors, (121), 28 states have return successors, (149), 123 states have call predecessors, (149), 119 states have call successors, (149) [2022-07-13 22:55:56,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 633 transitions. [2022-07-13 22:55:56,147 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 633 transitions. Word has length 332 [2022-07-13 22:55:56,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:55:56,147 INFO L495 AbstractCegarLoop]: Abstraction has 451 states and 633 transitions. [2022-07-13 22:55:56,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-13 22:55:56,147 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 633 transitions. [2022-07-13 22:55:56,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2022-07-13 22:55:56,149 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:55:56,149 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:55:56,174 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-07-13 22:55:56,363 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 [2022-07-13 22:55:56,363 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:55:56,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:55:56,364 INFO L85 PathProgramCache]: Analyzing trace with hash -12708465, now seen corresponding path program 1 times [2022-07-13 22:55:56,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:55:56,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670694214] [2022-07-13 22:55:56,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:56,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:55:56,410 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:55:56,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1519645045] [2022-07-13 22:55:56,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:56,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:55:56,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:55:56,412 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) [2022-07-13 22:55:56,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-07-13 22:55:57,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:57,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 3767 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 22:55:57,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:55:57,119 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked. [2022-07-13 22:55:57,119 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:55:57,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:55:57,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670694214] [2022-07-13 22:55:57,119 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:55:57,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1519645045] [2022-07-13 22:55:57,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1519645045] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:55:57,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:55:57,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 22:55:57,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768377165] [2022-07-13 22:55:57,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:55:57,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 22:55:57,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:55:57,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 22:55:57,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 22:55:57,122 INFO L87 Difference]: Start difference. First operand 451 states and 633 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-13 22:55:57,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:55:57,150 INFO L93 Difference]: Finished difference Result 866 states and 1261 transitions. [2022-07-13 22:55:57,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 22:55:57,151 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 332 [2022-07-13 22:55:57,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:55:57,153 INFO L225 Difference]: With dead ends: 866 [2022-07-13 22:55:57,153 INFO L226 Difference]: Without dead ends: 451 [2022-07-13 22:55:57,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 22:55:57,156 INFO L413 NwaCegarLoop]: 486 mSDtfsCounter, 7 mSDsluCounter, 952 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1438 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 22:55:57,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1438 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 22:55:57,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2022-07-13 22:55:57,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 451. [2022-07-13 22:55:57,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 300 states have (on average 1.2066666666666668) internal successors, (362), 302 states have internal predecessors, (362), 121 states have call successors, (121), 25 states have call predecessors, (121), 28 states have return successors, (149), 123 states have call predecessors, (149), 119 states have call successors, (149) [2022-07-13 22:55:57,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 632 transitions. [2022-07-13 22:55:57,172 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 632 transitions. Word has length 332 [2022-07-13 22:55:57,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:55:57,172 INFO L495 AbstractCegarLoop]: Abstraction has 451 states and 632 transitions. [2022-07-13 22:55:57,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-13 22:55:57,172 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 632 transitions. [2022-07-13 22:55:57,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2022-07-13 22:55:57,176 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:55:57,176 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:55:57,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-07-13 22:55:57,390 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 [2022-07-13 22:55:57,390 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:55:57,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:55:57,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1623540425, now seen corresponding path program 1 times [2022-07-13 22:55:57,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:55:57,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287572029] [2022-07-13 22:55:57,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:57,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:55:57,439 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:55:57,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1979645846] [2022-07-13 22:55:57,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:57,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:55:57,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:55:57,442 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) [2022-07-13 22:55:57,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-07-13 22:55:58,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:58,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 3782 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-13 22:55:58,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:55:58,236 INFO L134 CoverageAnalysis]: Checked inductivity of 833 backedges. 326 proven. 0 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2022-07-13 22:55:58,236 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:55:58,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:55:58,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287572029] [2022-07-13 22:55:58,236 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:55:58,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979645846] [2022-07-13 22:55:58,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1979645846] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:55:58,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:55:58,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 22:55:58,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984935268] [2022-07-13 22:55:58,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:55:58,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 22:55:58,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:55:58,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 22:55:58,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 22:55:58,238 INFO L87 Difference]: Start difference. First operand 451 states and 632 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-13 22:55:58,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:55:58,406 INFO L93 Difference]: Finished difference Result 866 states and 1259 transitions. [2022-07-13 22:55:58,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 22:55:58,407 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 338 [2022-07-13 22:55:58,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:55:58,409 INFO L225 Difference]: With dead ends: 866 [2022-07-13 22:55:58,409 INFO L226 Difference]: Without dead ends: 451 [2022-07-13 22:55:58,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 22:55:58,413 INFO L413 NwaCegarLoop]: 492 mSDtfsCounter, 7 mSDsluCounter, 1356 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1848 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 22:55:58,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1848 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 22:55:58,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2022-07-13 22:55:58,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 451. [2022-07-13 22:55:58,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 300 states have (on average 1.2033333333333334) internal successors, (361), 302 states have internal predecessors, (361), 121 states have call successors, (121), 25 states have call predecessors, (121), 28 states have return successors, (149), 123 states have call predecessors, (149), 119 states have call successors, (149) [2022-07-13 22:55:58,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 631 transitions. [2022-07-13 22:55:58,428 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 631 transitions. Word has length 338 [2022-07-13 22:55:58,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:55:58,428 INFO L495 AbstractCegarLoop]: Abstraction has 451 states and 631 transitions. [2022-07-13 22:55:58,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-13 22:55:58,428 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 631 transitions. [2022-07-13 22:55:58,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2022-07-13 22:55:58,430 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:55:58,430 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:55:58,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-07-13 22:55:58,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-07-13 22:55:58,647 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:55:58,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:55:58,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1177846795, now seen corresponding path program 1 times [2022-07-13 22:55:58,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:55:58,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305749118] [2022-07-13 22:55:58,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:58,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:55:58,697 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:55:58,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [509088405] [2022-07-13 22:55:58,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:58,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:55:58,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:55:58,713 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 22:55:58,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-07-13 22:55:59,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:59,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 3797 conjuncts, 85 conjunts are in the unsatisfiable core [2022-07-13 22:55:59,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:56:00,272 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2022-07-13 22:56:00,274 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-07-13 22:56:00,301 INFO L134 CoverageAnalysis]: Checked inductivity of 833 backedges. 425 proven. 0 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2022-07-13 22:56:00,301 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:56:00,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:56:00,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305749118] [2022-07-13 22:56:00,301 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:56:00,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [509088405] [2022-07-13 22:56:00,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [509088405] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:56:00,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:56:00,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-07-13 22:56:00,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460053890] [2022-07-13 22:56:00,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:56:00,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-13 22:56:00,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:56:00,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-13 22:56:00,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-07-13 22:56:00,303 INFO L87 Difference]: Start difference. First operand 451 states and 631 transitions. Second operand has 17 states, 17 states have (on average 7.0588235294117645) internal successors, (120), 16 states have internal predecessors, (120), 7 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (29), 7 states have call predecessors, (29), 7 states have call successors, (29) [2022-07-13 22:56:01,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:56:01,260 INFO L93 Difference]: Finished difference Result 937 states and 1327 transitions. [2022-07-13 22:56:01,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-13 22:56:01,260 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 7.0588235294117645) internal successors, (120), 16 states have internal predecessors, (120), 7 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (29), 7 states have call predecessors, (29), 7 states have call successors, (29) Word has length 338 [2022-07-13 22:56:01,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:56:01,263 INFO L225 Difference]: With dead ends: 937 [2022-07-13 22:56:01,263 INFO L226 Difference]: Without dead ends: 548 [2022-07-13 22:56:01,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 320 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=115, Invalid=641, Unknown=0, NotChecked=0, Total=756 [2022-07-13 22:56:01,266 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 165 mSDsluCounter, 4910 mSDsCounter, 0 mSdLazyCounter, 1003 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 5356 SdHoareTripleChecker+Invalid, 1145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1003 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 108 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-13 22:56:01,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 5356 Invalid, 1145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1003 Invalid, 0 Unknown, 108 Unchecked, 0.7s Time] [2022-07-13 22:56:01,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2022-07-13 22:56:01,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 484. [2022-07-13 22:56:01,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 327 states have (on average 1.1957186544342508) internal successors, (391), 329 states have internal predecessors, (391), 124 states have call successors, (124), 26 states have call predecessors, (124), 31 states have return successors, (175), 128 states have call predecessors, (175), 122 states have call successors, (175) [2022-07-13 22:56:01,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 690 transitions. [2022-07-13 22:56:01,292 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 690 transitions. Word has length 338 [2022-07-13 22:56:01,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:56:01,292 INFO L495 AbstractCegarLoop]: Abstraction has 484 states and 690 transitions. [2022-07-13 22:56:01,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 7.0588235294117645) internal successors, (120), 16 states have internal predecessors, (120), 7 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (29), 7 states have call predecessors, (29), 7 states have call successors, (29) [2022-07-13 22:56:01,293 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 690 transitions. [2022-07-13 22:56:01,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2022-07-13 22:56:01,296 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:56:01,296 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:56:01,323 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-07-13 22:56:01,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-07-13 22:56:01,519 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:56:01,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:56:01,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1243371206, now seen corresponding path program 1 times [2022-07-13 22:56:01,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:56:01,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864403234] [2022-07-13 22:56:01,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:56:01,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:56:01,616 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:56:01,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [720575578] [2022-07-13 22:56:01,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:56:01,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:56:01,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:56:01,618 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 22:56:01,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-07-13 22:56:02,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:56:02,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 3799 conjuncts, 255 conjunts are in the unsatisfiable core [2022-07-13 22:56:02,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:56:02,587 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_5208 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5208) |c_#memory_$Pointer$.offset|)) (exists ((v_ArrVal_5207 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5207))))) is different from true [2022-07-13 22:56:02,604 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5208 (Array Int Int)) (v_ArrVal_5207 (Array Int Int))) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5207)) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5208) |c_#memory_$Pointer$.offset|))) is different from true [2022-07-13 22:56:02,641 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-13 22:56:02,641 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-07-13 22:56:02,650 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-13 22:56:02,650 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-07-13 22:56:02,654 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-07-13 22:56:02,662 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-07-13 22:56:02,798 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_5209 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5209))) (exists ((v_ArrVal_5210 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5210) |c_#memory_$Pointer$.offset|)))) is different from true [2022-07-13 22:56:03,162 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_5211 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5211))) (exists ((v_ArrVal_5212 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5212) |c_#memory_$Pointer$.base|)))) is different from true [2022-07-13 22:56:03,175 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5211 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5212 (Array Int Int))) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5211)) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5212) |c_#memory_$Pointer$.base|))) is different from true [2022-07-13 22:56:03,214 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5211 (Array Int Int)) (v_ArrVal_5210 (Array Int Int)) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_115| Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5212 (Array Int Int)) (v_ArrVal_5209 (Array Int Int))) (let ((.cse0 (store |c_old(#memory_$Pointer$.base)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_115| v_ArrVal_5209)) (.cse1 (+ 40 |c_aws_priority_queue_is_valid_#in~queue#1.offset|)) (.cse2 (store |c_old(#memory_$Pointer$.offset)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_115| v_ArrVal_5210))) (and (= |c_#memory_$Pointer$.base| (store .cse0 |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5212)) (= (select (select .cse0 |c_aws_priority_queue_is_valid_#in~queue#1.base|) .cse1) 0) (= (select (select .cse2 |c_aws_priority_queue_is_valid_#in~queue#1.base|) .cse1) 0) (= (store .cse2 |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5211) |c_#memory_$Pointer$.offset|)))) is different from true [2022-07-13 22:56:03,362 INFO L356 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2022-07-13 22:56:03,363 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 51 [2022-07-13 22:56:03,389 INFO L356 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2022-07-13 22:56:03,390 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 51 [2022-07-13 22:56:03,432 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-07-13 22:56:03,448 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-07-13 22:56:03,463 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-07-13 22:56:03,535 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_5214 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5214))) (exists ((v_ArrVal_5213 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5213) |c_#memory_$Pointer$.base|)))) is different from true [2022-07-13 22:56:03,693 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| Int)) (and (exists ((v_ArrVal_5215 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5215))) (exists ((v_ArrVal_5217 Int)) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| v_ArrVal_5217)) |c_#memory_$Pointer$.offset|)))) is different from true [2022-07-13 22:56:03,706 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5217 Int) (v_ArrVal_5215 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| Int)) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5215)) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| v_ArrVal_5217)) |c_#memory_$Pointer$.offset|))) is different from true [2022-07-13 22:56:03,748 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5210 (Array Int Int)) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_116| Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5217 Int) (v_ArrVal_5215 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| Int) (v_ArrVal_5209 (Array Int Int))) (let ((.cse1 (+ 40 |c_aws_priority_queue_is_valid_#in~queue#1.offset|)) (.cse0 (store |c_old(#memory_$Pointer$.base)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_116| v_ArrVal_5209)) (.cse2 (store |c_old(#memory_$Pointer$.offset)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_116| v_ArrVal_5210))) (and (= (select (select .cse0 |c_aws_priority_queue_is_valid_#in~queue#1.base|) .cse1) 0) (= (select (select .cse2 |c_aws_priority_queue_is_valid_#in~queue#1.base|) .cse1) 0) (= (store .cse0 |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5215) |c_#memory_$Pointer$.base|) (= (store .cse2 |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select .cse2 |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| v_ArrVal_5217)) |c_#memory_$Pointer$.offset|)))) is different from true [2022-07-13 22:56:03,941 INFO L356 Elim1Store]: treesize reduction 90, result has 30.2 percent of original size [2022-07-13 22:56:03,942 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 63 treesize of output 118 [2022-07-13 22:56:03,969 INFO L356 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2022-07-13 22:56:03,970 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 51 [2022-07-13 22:56:03,989 INFO L356 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-07-13 22:56:03,989 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2022-07-13 22:56:04,150 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-07-13 22:56:04,173 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-07-13 22:56:04,254 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 36 [2022-07-13 22:56:04,496 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 [2022-07-13 22:56:04,503 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 18 [2022-07-13 22:56:06,786 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5218 Int) (v_ArrVal_5221 Int)) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_5221))) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_5218)) |c_#memory_$Pointer$.offset|))) is different from true [2022-07-13 22:56:36,388 INFO L134 CoverageAnalysis]: Checked inductivity of 833 backedges. 339 proven. 12 refuted. 0 times theorem prover too weak. 304 trivial. 178 not checked. [2022-07-13 22:56:36,388 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 22:56:38,693 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_128| Int) (v_ArrVal_5235 Int) (v_ArrVal_5234 Int)) (let ((.cse0 (+ 32 c_aws_array_list_length_~list.offset))) (or (not (= (select (select (store |c_#memory_$Pointer$.offset| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_128| (store (select |c_#memory_$Pointer$.offset| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_128|) 0 v_ArrVal_5235)) c_aws_array_list_length_~list.base) .cse0) 0)) (not (= (select (select (store |c_#memory_$Pointer$.base| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_128| (store (select |c_#memory_$Pointer$.base| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_128|) 0 v_ArrVal_5234)) c_aws_array_list_length_~list.base) .cse0) 0))))) is different from false [2022-07-13 22:56:38,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:56:38,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864403234] [2022-07-13 22:56:38,695 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:56:38,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [720575578] [2022-07-13 22:56:38,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [720575578] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 22:56:38,695 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-13 22:56:38,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47] total 47 [2022-07-13 22:56:38,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6194327] [2022-07-13 22:56:38,696 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-13 22:56:38,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-07-13 22:56:38,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:56:38,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-07-13 22:56:38,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=1353, Unknown=53, NotChecked=1020, Total=2550 [2022-07-13 22:56:38,697 INFO L87 Difference]: Start difference. First operand 484 states and 690 transitions. Second operand has 47 states, 45 states have (on average 4.044444444444444) internal successors, (182), 43 states have internal predecessors, (182), 16 states have call successors, (36), 5 states have call predecessors, (36), 17 states have return successors, (37), 18 states have call predecessors, (37), 16 states have call successors, (37) [2022-07-13 22:56:39,220 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_5209 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5209))) (exists ((v_ArrVal_5210 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5210) |c_#memory_$Pointer$.offset|)))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_5214 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5214))) (exists ((v_ArrVal_5213 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5213) |c_#memory_$Pointer$.base|)))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| Int)) (and (exists ((v_ArrVal_5215 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5215))) (exists ((v_ArrVal_5217 Int)) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| v_ArrVal_5217)) |c_#memory_$Pointer$.offset|)))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5218 Int) (v_ArrVal_5221 Int)) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_5221))) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_5218)) |c_#memory_$Pointer$.offset|))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_5208 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5208) |c_#memory_$Pointer$.offset|)) (exists ((v_ArrVal_5207 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5207))))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_5211 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5211))) (exists ((v_ArrVal_5212 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5212) |c_#memory_$Pointer$.base|))))) is different from true [2022-07-13 22:56:39,287 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_5211 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5212 (Array Int Int))) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5211)) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5212) |c_#memory_$Pointer$.base|))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5208 (Array Int Int)) (v_ArrVal_5207 (Array Int Int))) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5207)) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5208) |c_#memory_$Pointer$.offset|))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5217 Int) (v_ArrVal_5215 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| Int)) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5215)) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| v_ArrVal_5217)) |c_#memory_$Pointer$.offset|)))) is different from true [2022-07-13 22:57:02,192 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_5210 (Array Int Int)) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_116| Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5217 Int) (v_ArrVal_5215 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| Int) (v_ArrVal_5209 (Array Int Int))) (let ((.cse1 (+ 40 |c_aws_priority_queue_is_valid_#in~queue#1.offset|)) (.cse0 (store |c_old(#memory_$Pointer$.base)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_116| v_ArrVal_5209)) (.cse2 (store |c_old(#memory_$Pointer$.offset)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_116| v_ArrVal_5210))) (and (= (select (select .cse0 |c_aws_priority_queue_is_valid_#in~queue#1.base|) .cse1) 0) (= (select (select .cse2 |c_aws_priority_queue_is_valid_#in~queue#1.base|) .cse1) 0) (= (store .cse0 |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5215) |c_#memory_$Pointer$.base|) (= (store .cse2 |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select .cse2 |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| v_ArrVal_5217)) |c_#memory_$Pointer$.offset|)))) (exists ((v_ArrVal_5211 (Array Int Int)) (v_ArrVal_5210 (Array Int Int)) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_115| Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5212 (Array Int Int)) (v_ArrVal_5209 (Array Int Int))) (let ((.cse3 (store |c_old(#memory_$Pointer$.base)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_115| v_ArrVal_5209)) (.cse4 (+ 40 |c_aws_priority_queue_is_valid_#in~queue#1.offset|)) (.cse5 (store |c_old(#memory_$Pointer$.offset)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_115| v_ArrVal_5210))) (and (= |c_#memory_$Pointer$.base| (store .cse3 |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5212)) (= (select (select .cse3 |c_aws_priority_queue_is_valid_#in~queue#1.base|) .cse4) 0) (= (select (select .cse5 |c_aws_priority_queue_is_valid_#in~queue#1.base|) .cse4) 0) (= (store .cse5 |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5211) |c_#memory_$Pointer$.offset|))))) is different from true [2022-07-13 22:57:08,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:57:08,048 INFO L93 Difference]: Finished difference Result 1467 states and 2417 transitions. [2022-07-13 22:57:08,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-07-13 22:57:08,050 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 45 states have (on average 4.044444444444444) internal successors, (182), 43 states have internal predecessors, (182), 16 states have call successors, (36), 5 states have call predecessors, (36), 17 states have return successors, (37), 18 states have call predecessors, (37), 16 states have call successors, (37) Word has length 340 [2022-07-13 22:57:08,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:57:08,078 INFO L225 Difference]: With dead ends: 1467 [2022-07-13 22:57:08,091 INFO L226 Difference]: Without dead ends: 1113 [2022-07-13 22:57:08,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 324 SyntacticMatches, 3 SemanticMatches, 80 ConstructedPredicates, 15 IntricatePredicates, 0 DeprecatedPredicates, 1004 ImplicationChecksByTransitivity, 57.0s TimeCoverageRelationStatistics Valid=333, Invalid=4052, Unknown=97, NotChecked=2160, Total=6642 [2022-07-13 22:57:08,098 INFO L413 NwaCegarLoop]: 643 mSDtfsCounter, 504 mSDsluCounter, 9826 mSDsCounter, 0 mSdLazyCounter, 9260 mSolverCounterSat, 460 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 10469 SdHoareTripleChecker+Invalid, 25607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 460 IncrementalHoareTripleChecker+Valid, 9260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 15887 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-07-13 22:57:08,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [565 Valid, 10469 Invalid, 25607 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [460 Valid, 9260 Invalid, 0 Unknown, 15887 Unchecked, 6.3s Time] [2022-07-13 22:57:08,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1113 states. [2022-07-13 22:57:08,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1113 to 519. [2022-07-13 22:57:08,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 352 states have (on average 1.1903409090909092) internal successors, (419), 360 states have internal predecessors, (419), 128 states have call successors, (128), 26 states have call predecessors, (128), 37 states have return successors, (256), 132 states have call predecessors, (256), 126 states have call successors, (256) [2022-07-13 22:57:08,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 803 transitions. [2022-07-13 22:57:08,148 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 803 transitions. Word has length 340 [2022-07-13 22:57:08,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:57:08,149 INFO L495 AbstractCegarLoop]: Abstraction has 519 states and 803 transitions. [2022-07-13 22:57:08,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 45 states have (on average 4.044444444444444) internal successors, (182), 43 states have internal predecessors, (182), 16 states have call successors, (36), 5 states have call predecessors, (36), 17 states have return successors, (37), 18 states have call predecessors, (37), 16 states have call successors, (37) [2022-07-13 22:57:08,149 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 803 transitions. [2022-07-13 22:57:08,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2022-07-13 22:57:08,151 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:57:08,152 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:57:08,203 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2022-07-13 22:57:08,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-07-13 22:57:08,374 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:57:08,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:57:08,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1790678840, now seen corresponding path program 1 times [2022-07-13 22:57:08,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:57:08,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078907635] [2022-07-13 22:57:08,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:57:08,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:57:08,425 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:57:08,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [850906710] [2022-07-13 22:57:08,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:57:08,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:57:08,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:57:08,427 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 22:57:08,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2022-07-13 22:57:09,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:57:09,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 3794 conjuncts, 184 conjunts are in the unsatisfiable core [2022-07-13 22:57:09,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:57:09,717 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 6 treesize of output 5 [2022-07-13 22:57:09,928 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5497 (Array Int Int))) (= |c_#memory_int| (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_5497))) is different from true [2022-07-13 22:57:10,019 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5498 (Array Int Int))) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5498) |c_#memory_int|)) is different from true [2022-07-13 22:57:10,150 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-13 22:57:10,150 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-07-13 22:57:10,155 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-07-13 22:57:10,156 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 [2022-07-13 22:57:10,376 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5499 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5499) |c_#memory_int|)) is different from true [2022-07-13 22:57:10,445 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5500 (Array Int Int))) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5500) |c_#memory_int|)) is different from true [2022-07-13 22:57:10,456 WARN L855 $PredicateComparison]: unable to prove that (exists ((|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_129| Int) (v_ArrVal_5499 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5500 (Array Int Int))) (= (store (store |c_old(#memory_int)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_129| v_ArrVal_5499) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5500) |c_#memory_int|)) is different from true [2022-07-13 22:57:10,483 INFO L356 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2022-07-13 22:57:10,483 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 34 [2022-07-13 22:57:10,536 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5501 (Array Int Int))) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5501) |c_#memory_int|)) is different from true [2022-07-13 22:57:10,578 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5502 (Array Int Int))) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5502) |c_#memory_int|)) is different from true [2022-07-13 22:57:10,590 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5499 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5502 (Array Int Int)) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_130| Int)) (= |c_#memory_int| (store (store |c_old(#memory_int)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_130| v_ArrVal_5499) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5502))) is different from true [2022-07-13 22:57:10,608 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-13 22:57:10,608 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-07-13 22:57:10,703 INFO L134 CoverageAnalysis]: Checked inductivity of 833 backedges. 327 proven. 80 refuted. 0 times theorem prover too weak. 228 trivial. 198 not checked. [2022-07-13 22:57:10,703 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 22:57:11,695 INFO L134 CoverageAnalysis]: Checked inductivity of 833 backedges. 51 proven. 6 refuted. 0 times theorem prover too weak. 776 trivial. 0 not checked. [2022-07-13 22:57:11,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:57:11,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078907635] [2022-07-13 22:57:11,696 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:57:11,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850906710] [2022-07-13 22:57:11,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [850906710] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 22:57:11,696 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-13 22:57:11,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 13] total 48 [2022-07-13 22:57:11,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55540651] [2022-07-13 22:57:11,696 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-13 22:57:11,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-07-13 22:57:11,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:57:11,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-07-13 22:57:11,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=1447, Unknown=16, NotChecked=664, Total=2256 [2022-07-13 22:57:11,700 INFO L87 Difference]: Start difference. First operand 519 states and 803 transitions. Second operand has 48 states, 42 states have (on average 5.9523809523809526) internal successors, (250), 41 states have internal predecessors, (250), 24 states have call successors, (61), 10 states have call predecessors, (61), 17 states have return successors, (60), 23 states have call predecessors, (60), 20 states have call successors, (60) [2022-07-13 22:57:12,286 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5498 (Array Int Int))) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5498) |c_#memory_int|)) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5500 (Array Int Int))) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5500) |c_#memory_int|)) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5502 (Array Int Int))) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5502) |c_#memory_int|)) (exists ((v_ArrVal_5499 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5499) |c_#memory_int|)) (exists ((|aws_array_list_is_valid_~#required_size~0.base| Int)) (and (= (select |c_old(#valid)| |aws_array_list_is_valid_~#required_size~0.base|) 0) (exists ((v_ArrVal_5497 (Array Int Int))) (= |c_#memory_int| (store |c_old(#memory_int)| |aws_array_list_is_valid_~#required_size~0.base| v_ArrVal_5497))))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5501 (Array Int Int))) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5501) |c_#memory_int|))) is different from true [2022-07-13 22:57:12,303 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_5499 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5499) |c_#memory_int|)) (exists ((|aws_array_list_is_valid_~#required_size~0.base| Int)) (and (= (select |c_old(#valid)| |aws_array_list_is_valid_~#required_size~0.base|) 0) (exists ((v_ArrVal_5497 (Array Int Int))) (= |c_#memory_int| (store |c_old(#memory_int)| |aws_array_list_is_valid_~#required_size~0.base| v_ArrVal_5497))))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5501 (Array Int Int))) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5501) |c_#memory_int|))) is different from true [2022-07-13 22:57:12,305 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5498 (Array Int Int))) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5498) |c_#memory_int|)) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5500 (Array Int Int))) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5500) |c_#memory_int|)) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5502 (Array Int Int))) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5502) |c_#memory_int|))) is different from true [2022-07-13 22:57:12,551 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5498 (Array Int Int))) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5498) |c_#memory_int|)) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5500 (Array Int Int))) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5500) |c_#memory_int|)) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5502 (Array Int Int))) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5502) |c_#memory_int|)) (exists ((v_ArrVal_5499 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5499) |c_#memory_int|)) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5501 (Array Int Int))) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5501) |c_#memory_int|))) is different from true [2022-07-13 22:57:12,553 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_5499 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5499) |c_#memory_int|)) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5501 (Array Int Int))) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5501) |c_#memory_int|))) is different from true [2022-07-13 22:57:12,604 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_5497 (Array Int Int)) (|aws_array_list_is_valid_~#required_size~0.base| Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5498 (Array Int Int))) (and (= (store (store |c_old(#memory_int)| |aws_array_list_is_valid_~#required_size~0.base| v_ArrVal_5497) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5498) |c_#memory_int|) (= (select |c_old(#valid)| |aws_array_list_is_valid_~#required_size~0.base|) 0))) (exists ((v_ArrVal_5499 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5502 (Array Int Int)) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_130| Int)) (= |c_#memory_int| (store (store |c_old(#memory_int)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_130| v_ArrVal_5499) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5502))) (exists ((|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_129| Int) (v_ArrVal_5499 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5500 (Array Int Int))) (= (store (store |c_old(#memory_int)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_129| v_ArrVal_5499) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5500) |c_#memory_int|))) is different from true [2022-07-13 22:57:12,608 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_5497 (Array Int Int)) (|aws_array_list_is_valid_~#required_size~0.base| Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5498 (Array Int Int))) (and (= (store (store |c_old(#memory_int)| |aws_array_list_is_valid_~#required_size~0.base| v_ArrVal_5497) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5498) |c_#memory_int|) (= (select |c_old(#valid)| |aws_array_list_is_valid_~#required_size~0.base|) 0))) (exists ((v_ArrVal_5499 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5502 (Array Int Int)) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_130| Int)) (= |c_#memory_int| (store (store |c_old(#memory_int)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_130| v_ArrVal_5499) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5502))) (exists ((|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_129| Int) (v_ArrVal_5499 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5500 (Array Int Int))) (= (store (store |c_old(#memory_int)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_129| v_ArrVal_5499) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5500) |c_#memory_int|)) (not |c_aws_priority_queue_is_valid_aws_priority_queue_backpointers_valid_#t~short871#1|)) is different from true [2022-07-13 22:57:15,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:57:15,808 INFO L93 Difference]: Finished difference Result 1202 states and 1976 transitions. [2022-07-13 22:57:15,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-07-13 22:57:15,809 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 42 states have (on average 5.9523809523809526) internal successors, (250), 41 states have internal predecessors, (250), 24 states have call successors, (61), 10 states have call predecessors, (61), 17 states have return successors, (60), 23 states have call predecessors, (60), 20 states have call successors, (60) Word has length 340 [2022-07-13 22:57:15,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:57:15,814 INFO L225 Difference]: With dead ends: 1202 [2022-07-13 22:57:15,814 INFO L226 Difference]: Without dead ends: 816 [2022-07-13 22:57:15,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 708 GetRequests, 628 SyntacticMatches, 7 SemanticMatches, 73 ConstructedPredicates, 15 IntricatePredicates, 0 DeprecatedPredicates, 706 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=282, Invalid=3279, Unknown=39, NotChecked=1950, Total=5550 [2022-07-13 22:57:15,818 INFO L413 NwaCegarLoop]: 610 mSDtfsCounter, 453 mSDsluCounter, 8947 mSDsCounter, 0 mSdLazyCounter, 7505 mSolverCounterSat, 471 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 9557 SdHoareTripleChecker+Invalid, 19761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 471 IncrementalHoareTripleChecker+Valid, 7505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 11785 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-07-13 22:57:15,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 9557 Invalid, 19761 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [471 Valid, 7505 Invalid, 0 Unknown, 11785 Unchecked, 3.4s Time] [2022-07-13 22:57:15,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2022-07-13 22:57:15,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 535. [2022-07-13 22:57:15,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 365 states have (on average 1.1917808219178083) internal successors, (435), 373 states have internal predecessors, (435), 128 states have call successors, (128), 28 states have call predecessors, (128), 40 states have return successors, (258), 133 states have call predecessors, (258), 126 states have call successors, (258) [2022-07-13 22:57:15,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 821 transitions. [2022-07-13 22:57:15,853 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 821 transitions. Word has length 340 [2022-07-13 22:57:15,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:57:15,854 INFO L495 AbstractCegarLoop]: Abstraction has 535 states and 821 transitions. [2022-07-13 22:57:15,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 42 states have (on average 5.9523809523809526) internal successors, (250), 41 states have internal predecessors, (250), 24 states have call successors, (61), 10 states have call predecessors, (61), 17 states have return successors, (60), 23 states have call predecessors, (60), 20 states have call successors, (60) [2022-07-13 22:57:15,854 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 821 transitions. [2022-07-13 22:57:15,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2022-07-13 22:57:15,857 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:57:15,857 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:57:15,899 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2022-07-13 22:57:16,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:57:16,084 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:57:16,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:57:16,084 INFO L85 PathProgramCache]: Analyzing trace with hash 4556014, now seen corresponding path program 1 times [2022-07-13 22:57:16,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:57:16,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73959120] [2022-07-13 22:57:16,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:57:16,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:57:16,136 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:57:16,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [459883558] [2022-07-13 22:57:16,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:57:16,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:57:16,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:57:16,138 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 22:57:16,139 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2022-07-13 22:57:17,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:57:17,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 3819 conjuncts, 238 conjunts are in the unsatisfiable core [2022-07-13 22:57:17,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:57:17,266 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5871 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5871))) is different from true [2022-07-13 22:57:17,285 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-13 22:57:19,234 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5872 Int)) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_5872)) |c_#memory_$Pointer$.base|)) is different from true [2022-07-13 22:57:26,974 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5872 Int)) (= |c_#memory_$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_5872)))) is different from true [2022-07-13 22:57:26,998 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5874 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5874))) is different from true [2022-07-13 22:57:27,016 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5874 (Array Int Int)) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_244| Int) (v_ArrVal_5872 Int)) (= |c_#memory_$Pointer$.base| (store (store |c_old(#memory_$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_5872)) |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_244| v_ArrVal_5874))) is different from true [2022-07-13 22:57:27,118 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-07-13 22:57:27,119 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-13 22:57:27,163 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5875 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5875))) is different from true [2022-07-13 22:57:28,682 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_5876 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5876) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_5877 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5877))))) is different from true [2022-07-13 22:57:28,694 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5877 (Array Int Int)) (v_ArrVal_5876 (Array Int Int))) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5877)) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5876) |c_#memory_$Pointer$.base|))) is different from true [2022-07-13 22:57:28,728 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-13 22:57:28,728 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 31 treesize of output 37 [2022-07-13 22:57:28,769 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2022-07-13 22:57:28,793 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_245| Int) (v_ArrVal_5875 (Array Int Int)) (v_ArrVal_5876 (Array Int Int))) (let ((.cse0 (store |c_old(#memory_$Pointer$.base)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_245| v_ArrVal_5875))) (and (let ((.cse1 (+ 40 |c_aws_priority_queue_is_valid_#in~queue#1.offset|))) (or (= |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| |c_aws_priority_queue_is_valid_#in~queue#1.base|) (not (= (select (select .cse0 |c_aws_priority_queue_is_valid_#in~queue#1.base|) .cse1) 0)) (not (= (select (select |c_#memory_$Pointer$.offset| |c_aws_priority_queue_is_valid_#in~queue#1.base|) .cse1) 0)))) (= (store .cse0 |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5876) |c_#memory_$Pointer$.base|)))) is different from true [2022-07-13 22:57:29,018 INFO L356 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2022-07-13 22:57:29,018 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 67 [2022-07-13 22:57:29,987 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_5879 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_5879) |c_#memory_$Pointer$.offset|)) (exists ((v_ArrVal_5878 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_5878) |c_#memory_$Pointer$.base|))) is different from true [2022-07-13 22:57:31,173 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-13 22:57:31,175 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-13 22:57:55,446 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_5881 Int)) (= (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_5881)) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_5880 Int)) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_5880))))) is different from true [2022-07-13 22:58:37,325 INFO L134 CoverageAnalysis]: Checked inductivity of 869 backedges. 290 proven. 28 refuted. 4 times theorem prover too weak. 310 trivial. 237 not checked. [2022-07-13 22:58:37,325 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 22:58:39,529 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_aws_array_list_is_valid_~#required_size~0.base_140| Int) (v_ArrVal_5897 Int) (v_ArrVal_5896 Int)) (let ((.cse0 (+ 32 c_aws_array_list_length_~list.offset))) (or (not (= (select (select (store |c_#memory_$Pointer$.offset| |v_aws_array_list_is_valid_~#required_size~0.base_140| (store (select |c_#memory_$Pointer$.offset| |v_aws_array_list_is_valid_~#required_size~0.base_140|) 0 v_ArrVal_5896)) c_aws_array_list_length_~list.base) .cse0) 0)) (not (= (select (select (store |c_#memory_$Pointer$.base| |v_aws_array_list_is_valid_~#required_size~0.base_140| (store (select |c_#memory_$Pointer$.base| |v_aws_array_list_is_valid_~#required_size~0.base_140|) 0 v_ArrVal_5897)) c_aws_array_list_length_~list.base) .cse0) 0))))) is different from false [2022-07-13 22:58:39,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:58:39,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73959120] [2022-07-13 22:58:39,531 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:58:39,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459883558] [2022-07-13 22:58:39,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [459883558] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 22:58:39,531 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-13 22:58:39,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50] total 50 [2022-07-13 22:58:39,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482696669] [2022-07-13 22:58:39,531 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-13 22:58:39,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-07-13 22:58:39,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:58:39,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-07-13 22:58:39,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=1181, Unknown=203, NotChecked=1020, Total=2550 [2022-07-13 22:58:39,533 INFO L87 Difference]: Start difference. First operand 535 states and 821 transitions. Second operand has 50 states, 48 states have (on average 4.125) internal successors, (198), 46 states have internal predecessors, (198), 22 states have call successors, (41), 7 states have call predecessors, (41), 16 states have return successors, (40), 25 states have call predecessors, (40), 21 states have call successors, (40) [2022-07-13 22:58:39,902 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_5879 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_5879) |c_#memory_$Pointer$.offset|)) (exists ((v_ArrVal_5878 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_5878) |c_#memory_$Pointer$.base|)) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_5876 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5876) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_5877 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5877))))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5875 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5875))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5874 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5874))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5872 Int)) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_5872)) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_5871 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5871))) (exists ((v_ArrVal_5881 Int)) (= (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_5881)) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_5880 Int)) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_5880))))) is different from true [2022-07-13 22:59:00,009 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5872 Int)) (= |c_#memory_$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$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_5872)))) (let ((.cse0 (+ 32 |c_aws_array_list_is_valid_#in~list.offset|))) (or (not (= (select (select |c_#memory_$Pointer$.offset| |c_aws_array_list_is_valid_#in~list.base|) .cse0) 0)) (not (= (select (select |c_#memory_$Pointer$.base| |c_aws_array_list_is_valid_#in~list.base|) .cse0) 0)))) (exists ((|aws_array_list_is_valid_~#required_size~0.base| Int) (v_ArrVal_5879 (Array Int Int)) (v_ArrVal_5878 (Array Int Int))) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_array_list_is_valid_~#required_size~0.base| v_ArrVal_5878)) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_array_list_is_valid_~#required_size~0.base| v_ArrVal_5879))))) is different from true [2022-07-13 22:59:00,012 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5874 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5874))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5877 (Array Int Int)) (v_ArrVal_5876 (Array Int Int))) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5877)) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5876) |c_#memory_$Pointer$.base|))) (exists ((v_ArrVal_5871 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5871)))) is different from true [2022-07-13 22:59:16,077 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_245| Int) (v_ArrVal_5875 (Array Int Int)) (v_ArrVal_5876 (Array Int Int))) (let ((.cse0 (store |c_old(#memory_$Pointer$.base)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_245| v_ArrVal_5875))) (and (let ((.cse1 (+ 40 |c_aws_priority_queue_is_valid_#in~queue#1.offset|))) (or (= |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| |c_aws_priority_queue_is_valid_#in~queue#1.base|) (not (= (select (select .cse0 |c_aws_priority_queue_is_valid_#in~queue#1.base|) .cse1) 0)) (not (= (select (select |c_#memory_$Pointer$.offset| |c_aws_priority_queue_is_valid_#in~queue#1.base|) .cse1) 0)))) (= (store .cse0 |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5876) |c_#memory_$Pointer$.base|)))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5874 (Array Int Int)) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_244| Int) (v_ArrVal_5872 Int)) (= |c_#memory_$Pointer$.base| (store (store |c_old(#memory_$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_5872)) |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_244| v_ArrVal_5874)))) is different from true [2022-07-13 22:59:18,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:59:18,669 INFO L93 Difference]: Finished difference Result 1420 states and 2303 transitions. [2022-07-13 22:59:18,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-07-13 22:59:18,670 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 48 states have (on average 4.125) internal successors, (198), 46 states have internal predecessors, (198), 22 states have call successors, (41), 7 states have call predecessors, (41), 16 states have return successors, (40), 25 states have call predecessors, (40), 21 states have call successors, (40) Word has length 348 [2022-07-13 22:59:18,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:59:18,685 INFO L225 Difference]: With dead ends: 1420 [2022-07-13 22:59:18,686 INFO L226 Difference]: Without dead ends: 1025 [2022-07-13 22:59:18,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 308 SyntacticMatches, 6 SemanticMatches, 67 ConstructedPredicates, 16 IntricatePredicates, 0 DeprecatedPredicates, 705 ImplicationChecksByTransitivity, 117.4s TimeCoverageRelationStatistics Valid=245, Invalid=2286, Unknown=289, NotChecked=1872, Total=4692 [2022-07-13 22:59:18,690 INFO L413 NwaCegarLoop]: 586 mSDtfsCounter, 456 mSDsluCounter, 6933 mSDsCounter, 0 mSdLazyCounter, 4892 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 7519 SdHoareTripleChecker+Invalid, 19929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 4892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 14719 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-13 22:59:18,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 7519 Invalid, 19929 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 4892 Invalid, 0 Unknown, 14719 Unchecked, 2.7s Time] [2022-07-13 22:59:18,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1025 states. [2022-07-13 22:59:18,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1025 to 542. [2022-07-13 22:59:18,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 369 states have (on average 1.1897018970189701) internal successors, (439), 377 states have internal predecessors, (439), 130 states have call successors, (130), 29 states have call predecessors, (130), 41 states have return successors, (266), 135 states have call predecessors, (266), 128 states have call successors, (266) [2022-07-13 22:59:18,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 835 transitions. [2022-07-13 22:59:18,729 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 835 transitions. Word has length 348 [2022-07-13 22:59:18,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:59:18,730 INFO L495 AbstractCegarLoop]: Abstraction has 542 states and 835 transitions. [2022-07-13 22:59:18,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 48 states have (on average 4.125) internal successors, (198), 46 states have internal predecessors, (198), 22 states have call successors, (41), 7 states have call predecessors, (41), 16 states have return successors, (40), 25 states have call predecessors, (40), 21 states have call successors, (40) [2022-07-13 22:59:18,730 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 835 transitions. [2022-07-13 22:59:18,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2022-07-13 22:59:18,732 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:59:18,733 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:59:18,760 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2022-07-13 22:59:18,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2022-07-13 22:59:18,955 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:59:18,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:59:18,956 INFO L85 PathProgramCache]: Analyzing trace with hash 151861472, now seen corresponding path program 1 times [2022-07-13 22:59:18,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:59:18,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638221024] [2022-07-13 22:59:18,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:59:18,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:59:19,003 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:59:19,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [923515861] [2022-07-13 22:59:19,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:59:19,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:59:19,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:59:19,005 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 22:59:19,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2022-07-13 22:59:19,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:59:19,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 3817 conjuncts, 38 conjunts are in the unsatisfiable core [2022-07-13 22:59:19,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:59:19,920 INFO L134 CoverageAnalysis]: Checked inductivity of 853 backedges. 234 proven. 2 refuted. 0 times theorem prover too weak. 617 trivial. 0 not checked. [2022-07-13 22:59:19,920 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 22:59:20,550 INFO L134 CoverageAnalysis]: Checked inductivity of 853 backedges. 101 proven. 10 refuted. 0 times theorem prover too weak. 742 trivial. 0 not checked. [2022-07-13 22:59:20,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:59:20,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638221024] [2022-07-13 22:59:20,550 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:59:20,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [923515861] [2022-07-13 22:59:20,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [923515861] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 22:59:20,551 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-13 22:59:20,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15] total 21 [2022-07-13 22:59:20,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639365934] [2022-07-13 22:59:20,551 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-13 22:59:20,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-07-13 22:59:20,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:59:20,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-07-13 22:59:20,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=375, Unknown=0, NotChecked=0, Total=420 [2022-07-13 22:59:20,552 INFO L87 Difference]: Start difference. First operand 542 states and 835 transitions. Second operand has 21 states, 18 states have (on average 6.944444444444445) internal successors, (125), 14 states have internal predecessors, (125), 5 states have call successors, (33), 3 states have call predecessors, (33), 7 states have return successors, (33), 8 states have call predecessors, (33), 4 states have call successors, (33) [2022-07-13 22:59:21,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:59:21,117 INFO L93 Difference]: Finished difference Result 994 states and 1557 transitions. [2022-07-13 22:59:21,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 22:59:21,118 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 6.944444444444445) internal successors, (125), 14 states have internal predecessors, (125), 5 states have call successors, (33), 3 states have call predecessors, (33), 7 states have return successors, (33), 8 states have call predecessors, (33), 4 states have call successors, (33) Word has length 356 [2022-07-13 22:59:21,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:59:21,121 INFO L225 Difference]: With dead ends: 994 [2022-07-13 22:59:21,121 INFO L226 Difference]: Without dead ends: 543 [2022-07-13 22:59:21,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 713 GetRequests, 690 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=492, Unknown=0, NotChecked=0, Total=552 [2022-07-13 22:59:21,123 INFO L413 NwaCegarLoop]: 469 mSDtfsCounter, 15 mSDsluCounter, 6882 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 7351 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 22:59:21,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 7351 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 22:59:21,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2022-07-13 22:59:21,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 536. [2022-07-13 22:59:21,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 366 states have (on average 1.1912568306010929) internal successors, (436), 373 states have internal predecessors, (436), 128 states have call successors, (128), 29 states have call predecessors, (128), 40 states have return successors, (237), 133 states have call predecessors, (237), 126 states have call successors, (237) [2022-07-13 22:59:21,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 801 transitions. [2022-07-13 22:59:21,150 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 801 transitions. Word has length 356 [2022-07-13 22:59:21,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:59:21,151 INFO L495 AbstractCegarLoop]: Abstraction has 536 states and 801 transitions. [2022-07-13 22:59:21,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 6.944444444444445) internal successors, (125), 14 states have internal predecessors, (125), 5 states have call successors, (33), 3 states have call predecessors, (33), 7 states have return successors, (33), 8 states have call predecessors, (33), 4 states have call successors, (33) [2022-07-13 22:59:21,151 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 801 transitions. [2022-07-13 22:59:21,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2022-07-13 22:59:21,153 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:59:21,154 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:59:21,179 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2022-07-13 22:59:21,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:59:21,377 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:59:21,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:59:21,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1897316128, now seen corresponding path program 2 times [2022-07-13 22:59:21,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:59:21,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804192417] [2022-07-13 22:59:21,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:59:21,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:59:21,454 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:59:21,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1368993786] [2022-07-13 22:59:21,454 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 22:59:21,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:59:21,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:59:21,456 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 22:59:21,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2022-07-13 22:59:22,271 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-13 22:59:22,271 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 22:59:22,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 3817 conjuncts, 37 conjunts are in the unsatisfiable core [2022-07-13 22:59:22,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:59:22,343 INFO L134 CoverageAnalysis]: Checked inductivity of 853 backedges. 370 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2022-07-13 22:59:22,344 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:59:22,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:59:22,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804192417] [2022-07-13 22:59:22,344 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:59:22,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1368993786] [2022-07-13 22:59:22,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1368993786] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:59:22,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:59:22,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 22:59:22,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882782544] [2022-07-13 22:59:22,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:59:22,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-13 22:59:22,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:59:22,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-13 22:59:22,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-07-13 22:59:22,345 INFO L87 Difference]: Start difference. First operand 536 states and 801 transitions. Second operand has 11 states, 11 states have (on average 11.0) internal successors, (121), 8 states have internal predecessors, (121), 2 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (31), 5 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-13 22:59:22,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:59:22,458 INFO L93 Difference]: Finished difference Result 1053 states and 1605 transitions. [2022-07-13 22:59:22,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-13 22:59:22,459 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.0) internal successors, (121), 8 states have internal predecessors, (121), 2 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (31), 5 states have call predecessors, (31), 2 states have call successors, (31) Word has length 356 [2022-07-13 22:59:22,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:59:22,462 INFO L225 Difference]: With dead ends: 1053 [2022-07-13 22:59:22,463 INFO L226 Difference]: Without dead ends: 557 [2022-07-13 22:59:22,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-07-13 22:59:22,465 INFO L413 NwaCegarLoop]: 497 mSDtfsCounter, 16 mSDsluCounter, 4424 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 4921 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 22:59:22,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 4921 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 22:59:22,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2022-07-13 22:59:22,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 532. [2022-07-13 22:59:22,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 363 states have (on average 1.184573002754821) internal successors, (430), 365 states have internal predecessors, (430), 128 states have call successors, (128), 29 states have call predecessors, (128), 39 states have return successors, (224), 137 states have call predecessors, (224), 126 states have call successors, (224) [2022-07-13 22:59:22,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 782 transitions. [2022-07-13 22:59:22,490 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 782 transitions. Word has length 356 [2022-07-13 22:59:22,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:59:22,490 INFO L495 AbstractCegarLoop]: Abstraction has 532 states and 782 transitions. [2022-07-13 22:59:22,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.0) internal successors, (121), 8 states have internal predecessors, (121), 2 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (31), 5 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-13 22:59:22,491 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 782 transitions. [2022-07-13 22:59:22,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2022-07-13 22:59:22,493 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:59:22,493 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:59:22,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2022-07-13 22:59:22,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:59:22,709 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:59:22,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:59:22,709 INFO L85 PathProgramCache]: Analyzing trace with hash 455035687, now seen corresponding path program 3 times [2022-07-13 22:59:22,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:59:22,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620459878] [2022-07-13 22:59:22,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:59:22,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:59:22,775 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:59:22,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [10403253] [2022-07-13 22:59:22,775 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-13 22:59:22,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:59:22,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:59:22,790 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 22:59:22,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2022-07-13 22:59:23,424 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-07-13 22:59:23,425 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 22:59:23,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 2180 conjuncts, 38 conjunts are in the unsatisfiable core [2022-07-13 22:59:23,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:59:25,575 WARN L855 $PredicateComparison]: unable to prove that (or (exists ((v_aws_array_list_length_~list.base_BEFORE_CALL_5 Int) (v_aws_array_list_length_~list.offset_BEFORE_CALL_11 Int)) (not (= (select (select |c_#memory_$Pointer$.offset| v_aws_array_list_length_~list.base_BEFORE_CALL_5) (+ v_aws_array_list_length_~list.offset_BEFORE_CALL_11 32)) 0))) (exists ((v_aws_array_list_length_~list.base_BEFORE_CALL_5 Int) (v_aws_array_list_length_~list.offset_BEFORE_CALL_11 Int)) (not (= (select (select |c_#memory_$Pointer$.base| v_aws_array_list_length_~list.base_BEFORE_CALL_5) (+ v_aws_array_list_length_~list.offset_BEFORE_CALL_11 32)) 0)))) is different from true [2022-07-13 22:59:25,802 INFO L134 CoverageAnalysis]: Checked inductivity of 869 backedges. 215 proven. 3 refuted. 0 times theorem prover too weak. 651 trivial. 0 not checked. [2022-07-13 22:59:25,802 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 22:59:26,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:59:26,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620459878] [2022-07-13 22:59:26,235 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:59:26,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10403253] [2022-07-13 22:59:26,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10403253] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 22:59:26,235 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-13 22:59:26,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2022-07-13 22:59:26,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621246611] [2022-07-13 22:59:26,235 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-13 22:59:26,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-13 22:59:26,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:59:26,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-13 22:59:26,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=220, Unknown=1, NotChecked=30, Total=306 [2022-07-13 22:59:26,236 INFO L87 Difference]: Start difference. First operand 532 states and 782 transitions. Second operand has 13 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 6 states have call successors, (31), 4 states have call predecessors, (31), 5 states have return successors, (28), 6 states have call predecessors, (28), 5 states have call successors, (28) [2022-07-13 22:59:43,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:59:43,645 INFO L93 Difference]: Finished difference Result 1146 states and 1767 transitions. [2022-07-13 22:59:43,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-13 22:59:43,645 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 6 states have call successors, (31), 4 states have call predecessors, (31), 5 states have return successors, (28), 6 states have call predecessors, (28), 5 states have call successors, (28) Word has length 354 [2022-07-13 22:59:43,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:59:43,650 INFO L225 Difference]: With dead ends: 1146 [2022-07-13 22:59:43,650 INFO L226 Difference]: Without dead ends: 707 [2022-07-13 22:59:43,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 357 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 17.6s TimeCoverageRelationStatistics Valid=214, Invalid=710, Unknown=10, NotChecked=58, Total=992 [2022-07-13 22:59:43,653 INFO L413 NwaCegarLoop]: 520 mSDtfsCounter, 204 mSDsluCounter, 1931 mSDsCounter, 0 mSdLazyCounter, 2391 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 2451 SdHoareTripleChecker+Invalid, 3179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 2391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 628 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-13 22:59:43,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 2451 Invalid, 3179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 2391 Invalid, 0 Unknown, 628 Unchecked, 2.1s Time] [2022-07-13 22:59:43,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-07-13 22:59:43,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 561. [2022-07-13 22:59:43,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 383 states have (on average 1.1801566579634464) internal successors, (452), 387 states have internal predecessors, (452), 133 states have call successors, (133), 31 states have call predecessors, (133), 43 states have return successors, (253), 142 states have call predecessors, (253), 131 states have call successors, (253) [2022-07-13 22:59:43,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 838 transitions. [2022-07-13 22:59:43,681 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 838 transitions. Word has length 354 [2022-07-13 22:59:43,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:59:43,682 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 838 transitions. [2022-07-13 22:59:43,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 6 states have call successors, (31), 4 states have call predecessors, (31), 5 states have return successors, (28), 6 states have call predecessors, (28), 5 states have call successors, (28) [2022-07-13 22:59:43,682 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 838 transitions. [2022-07-13 22:59:43,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2022-07-13 22:59:43,685 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:59:43,685 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:59:43,718 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2022-07-13 22:59:43,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2022-07-13 22:59:43,906 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:59:43,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:59:43,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1170705433, now seen corresponding path program 4 times [2022-07-13 22:59:43,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:59:43,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320742716] [2022-07-13 22:59:43,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:59:43,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:59:43,957 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:59:43,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [920202027] [2022-07-13 22:59:43,957 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-13 22:59:43,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:59:43,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:59:43,959 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 22:59:43,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2022-07-13 22:59:44,838 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-13 22:59:44,838 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 22:59:44,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 3823 conjuncts, 125 conjunts are in the unsatisfiable core [2022-07-13 22:59:44,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:59:44,864 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-13 22:59:45,112 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-07-13 22:59:45,112 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 [2022-07-13 22:59:45,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 22:59:45,121 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